US 20060135252 A1 Abstract A method of managing bets is provided. The method includes receiving at least one group bet for an event having a set of participants. A first group comprises a first subset of the participants and a second group comprises a second subset of the participants. The group bet comprises a bet that one of the first subset of participants will win the event. The method continues by receiving results of the event identifying a winning participant. The method concludes by determining an amount of a group bet payout for the group bet based on whether the first subset of participants includes the winning participant.
Claims(27) 1. A method for managing bets, comprising:
receiving at least one group bet for an event having a set of participants, wherein a first group comprises a first subset of the participants and a second group comprises a second subset of the participants, the group bet comprising a bet that one of the first subset of participants will win the event; receiving results of the event identifying a winning participant; and determining an amount of a group bet payout for the group bet based on whether the first subset of participants includes the winning participant. 2. The method of 3. The method of 4. The method of 5. The method of 6. The method of 7. The method of 8. The method of the first subset of the participants includes the winning participant; and the amount of the determined group bet payout is the same regardless of which particular participant in the first subset of the participants is the winning participant. 9. The method of receiving one or more win bets, each win bet comprising a bet that a participant selected from the set of participants will win the event; and determining the win bets that comprise a bet on the winning participant. 10. The method of 11. The method of determining the odds of winning for the particular participant based at least in part on the one or more received win bets; and wherein the amount of the group bet payout is determined based at least in part on the odds of winning for the particular participant. 12. The method of selecting a participant from the first subset of participants; and determining the total amount of the win bets that comprise a bet on any participant in the set of participants except for the selected participant. 13. The method of 14. The method of wherein determining the amount of the group bet payout comprises reallocating the amount of the group bet among the remaining participants in the first subset of participants. 15. The method of determining as a first amount the portion of the group bet allocated to the winning participant; determining as a second amount the total portion of the group bet allocated among the participants in the set of participants except for the winning participant; determining as a third amount the total amount of the win bets that comprise a bet on any of the participants in the set of participants except for the winning participant; determining as a fourth amount the total amount of the win bets that comprise a bet on the winning participant; and determining the amount of the group bet payout based at least on the first amount, the second amount, the third amount, and the fourth amount. 16. The method of determining a fifth amount by multiplying the sum of the second amount and the third amount by the first amount; determining a sixth amount by dividing the fifth amount by the sum of the first amount and fourth amount; and adding the sixth amount and the first amount. 17. The method of wherein the amount of the group bet is allocated to each participant in the first subset of participants in proportion to the determined total amounts of the win bets associated with that participant. 18. The method of determining as a first amount the total amount of the win bets that comprise a bet on the winning participant; determining as a second amount the total portion of the group bet allocated among the participants in the set of participants except for the winning participant; determining as a third amount the total amount of the win bets that comprise a bet on any of the participants in the set of participants except for the winning participant; determining as a fourth amount the total portion of the group bet allocated to the winning participant; and determining the amount of the payout for at least a portion of the win bets that comprise a bet on the winning participant based at least on the first amount, the second amount, the third amount, and the fourth amount. 19. The method of determining a fifth amount by multiplying the sum of the second amount and the third amount by the first amount; determining a sixth amount by dividing the fifth amount by the sum of the first amount and fourth amount; and adding the sixth amount and the first amount. 20. The method of 21. The method of the set of participants comprises a first participant, a second participant, a third participant, and a plurality of remaining participants; the first participant comprises a favorite to win the event; the second participant and the third participant each comprise a contender to win the event; the first group comprises the second participant and the third participant; and the second group comprises the plurality of remaining participants. 22. The method of the set of participants comprises a first participant, a second participant, a third participant, and a plurality of remaining participants; the first participant comprises a favorite to win the event; the second participant and the third participant each comprise a contender to win the event; the second group comprises the second participant and the third participant; and the first group comprises the plurality of remaining participants. 23. The method of at some time after receiving the at least one group bet, identifying particular participants for the first group. 24. The method of 25. The method of 26. A method for managing bets, comprising:
identifying a set of participants of an event; identifying a first group comprising a first subset of the participants, wherein the first subset comprises a plurality of participants; identifying a second group comprising a second subset of the participants, wherein the second subset comprises a plurality of participants; receiving a first group bet comprising a bet that one of the first subset of participants will win the event; receiving a second group bet comprising a bet that one of the second subset of participants will win the event; receiving results of the event identifying a winning participant; and determining an amount of a group bet payout for at least one of the group bets based on whether the corresponding subset of participants includes the winning participant. 27. A method of managing bets, comprising:
identifying a set of participants of an event; identifying a first group comprising a first subset of the participants, wherein the first subset comprises a plurality of participants; identifying a second group comprising a second subset of the participants, wherein the second subset comprises a plurality of participants; receiving at least one group bet comprising a bet that one of the first subset of participants will win the event; receiving results of the event identifying a winning participant; and determining an amount of a group bet payout for the group bet based on whether the first subset of participants includes the winning participant. Description This application is a continuation-in-part of U.S. application Ser. No. 11/022,394, filed Dec. 22, 2004, entitled “System and Method for Betting on a Subset of Participants in an Event Wherein Betting Parameters May Change Over Time,” by Lee M. Amaitis et al.; U.S. application Ser. No. 10/983,279, filed Nov. 5, 2004, entitled “System and Method for Betting on a Subset of Participants in an Event,” by Lee M. Amaitis et al.; and U.S. application Ser. No. 10/453,769, filed Jun. 3, 2003, entitled “System and Method for Betting on a Subset of Participants in an Event,” by Lee M. Amaitis et al.; which are incorporated by reference herein for all purposes. This invention relates in general to betting on events and, more particularly, to a system and method for betting on a subset of participants in an event according to multiple groups. Wagering on sporting events, such as horse races, for example, is a large and growing industry in many parts of the world. Various types of betting products or systems are available for various types of sporting events For example, typical horse racing bets allow bettors to bet on a single horse or on several horses in a particular race or series of races. For instance, a bettor can bet on a particular horse to finish first (win), finish in the top two (place), or finish in the top three (show). A bettor may also make various combination bets with multiple horses, such as an exacta bet (covering the top two horses in order) or a trifecta bet (covering the top three horses in order). In addition, a bettor may bet on a series of races, such as the daily double (winners of two consecutive races), the pick-three (winners of three consecutive races), and the pick-six (winners of six consecutive races), for example. In a pari-mutuel betting system, all bets regarding a particular event are aggregated, a commission (or “take-out”) is taken by the track, and the remainder is distributed among the winning bettors. For example, pari-mutuel betting systems are commonly used in North America (and other various places throughout the world) for betting on horse races. According to one embodiment, a method of managing bets is provided. The method includes receiving one or more win bets and one or more group bets. Each win bet includes a bet that a participant selected from a set of participants in an event will win the event. Each group bet includes a bet that one of a subset of the set of participants will win the event, wherein the subset includes a plurality of the set of participants. Results of the event identifying a winning participant from the set of participants are received. An amount of a win bet payout for at least a portion of the win bets that comprise a bet on the winning participant is determined. An amount of a group bet payout for at least one of the group bets is also determined. According to another embodiment, a system for managing bets is provided. The system includes a memory coupled to a processor. The memory is operable to store one or more win bets and one or more group bets. Each win bet includes a bet that a participant selected from a set of participants in an event will win the event. Each group bet includes a bet that one of a subset of the set of participants will win the event, wherein the subset includes a plurality of the set of participants. The memory is also operable to store results of the event identifying a winning participant from the set of participants. The processor is operable to determine an amount of a win bet payout for at least a portion of the win bets that comprise a bet on the winning participant, and also to determine an amount of a group bet payout for at least one of the group bets. According to yet another embodiment, another method of managing bets is provided. The method includes identifying a set of participants in an event and receiving a group bet for the event. The group bet comprises a bet that one of an undefined subset of the set of participants will win the event. The undefined subset of participants associated with the group bet is defined at some time after receiving the group bet by determining participants for the subset of participants. For example, the undefined subset of participants may be defined after the close of betting on the event. Results of the event that identify a winning participant are received, and an amount of a group bet payout for the group bet is determined based at least on whether the defined subset of participants includes the winning participant. According to still another embodiment, another method of managing bets is provided. A set of participants in an event are identified. A group bet that one of a subset of the set of participants will win the event is received. Odds of winning the race for at least one of the set of participants are determined at the time the group bet was received. Results of the event are received, the results identifying a winning participant. An amount of a group bet payout for the group bet is determined based at least on (a) whether the subset of participants includes the winning participant and (b) the odds of winning the race determined for the at least one participant at the time the group bet was received. Various embodiments of the present invention may benefit from numerous advantages. It should be noted that one or more embodiments may benefit from some, none, or all of the advantages discussed below. One advantage of the invention is that in an event which includes a set of participants, a bettor may bet on a subset of the set of participants, and win the bet if any of the subset of participants wins the event. Thus, for example, a bettor who believes that a particular participant in an event will not win the event, but is unsure of which other participant to bet on, may purchase a group bet which includes a group of participants which excludes the particular participant. For example, a bettor who believes that the favorite in a horse race will not win the race, but is unsure on which other horse to bet, may purchase a group bet which includes every horse in the field except for the favorite. In this manner, a bettor may bet on all horses other than the favorite (or another particular horse), thus effectively betting against the favorite, without having to place individual bets on each of the non-favorite horses. In some situations, a bettor may make such a group bet on an event when he or she otherwise would not have made a bet on the event, since the bettor need not place individual bets on each of the non-favorite horses. This may increase the total pool of wagers on the event, which may increase profits at least for the one or more entities that collect a percentage of the take-out on such wagers. Additionally, by allowing a bettor to make a group bet rather than make several individual bets, the resources of the betting system avoid becoming congested. This frees up bandwidth within the betting system for processing bets faster and for allowing other bets to be made. Another advantages is that in various embodiments, group bets offered to bettors may exclude any number of participants in a race, thus allowing a bettor to effectively bet against any number of participants in a race. For example, group bets may be offered that cover a group of participants which excludes one, two, three, or more particular participants, or one, two, three, or more favorites in the race. In some embodiments, the group of participants covered (or excluded) by a particular group bet may be undefined until some point after the particular group bet is received from a bettor. For example, a group bet may exclude (i.e., effectively comprise a bet against) one, two, three, or more favorite participants in a race, which favorite participant(s) may not be defined until, or after, the close of betting on the race, since one or more favorite participant(s) in a race may change during the period of betting on the race. Thus, a bettor may effectively bet against the favorite horse (or more than one favorite horses) in a race regardless of which horse ends up as the favorite horse after betting has closed on the race. Another advantage of the invention is that group bets may be offered having potential payouts fixed at the time that the group bets are placed by bettors. The potential payout for a particular group bet placed by a bettor at a particular time may be determined, and fixed, based on the various bets received on the race prior to that particular time. Thus, a bettor may effectively lock in a potential payout for a group bet, which may be desirable to the bettor. Another advantage of the invention is that any of the various group bets described herein may be provided in a pari-mutuel betting system in which all bets regarding a particular event are pooled. Other advantages will be readily apparent to one having ordinary skill in the art from the following figures, descriptions, and claims. For a more complete understanding of the present invention and for further features and advantages, reference is now made to the following description, taken in conjunction with the accompanying drawings, in which: Bet Management System System By placing a group bet In some embodiments, more than one different group bet In alternative embodiments, the group of participants covered by a particular group bet In addition, in certain embodiments, the group of participants covered by a particular group bet In some embodiments, system Group bets In some embodiments, payouts for group bets In other embodiments, payouts for each group bet Betting System Interfaces Betting system interfaces Track interfaces As shown in Telephone operators In some embodiments, one or more websites Some or all of the betting system interfaces Betting System Platform As discussed above, betting system platform As discussed above, betting system platform Memory As discussed above, one or more communications networks As discussed above, processor As shown in Calculating Current Odds Data for Win Bets and Group Bets As discussed above, processor As discussed above, The AC group bet pool equation The participant's AC win bet stake equation The total AC win bet stake equation The AC group-participant win bet pool equation The total AC pool on all participants equation The AC group bet pool allocation equation The participant's total AC stake equation Each of the alternative total AC group bet payout equations, It should be understood that using the equations shown in The total AC group bet profit equation Each of the alternative AC payout per group bet unit currency equations, According to equation Each of the alternative total AC win bet payout equations The total AC win bet profit equation Each of the alternative AC payout per win bet unit currency equations According to equation As discussed above, Example Calculation of Payouts/Profits for Win Bets and Group Bets Each of Payout table Stakes table Various data within BC section Regarding AC section In addition, as discussed above, the payouts and profits shown in payout table Similarly, the various payouts and profits calculated without or before take-out, as indicated along row In this manner, the various payouts and profits included in payout table In view of Example Operation of Bet Management System Each win bet At step At step At step At least portions of steps At step If the betting pool is still open, the method may return to steps Thus, it should be understood that each time the method returns to steps If it is determined at step At step At step At step At step At step At step At step At step At step At step At step At step It should be understood that in various embodiments, the steps of the methods shown in Group Bets Defined After Close of Betting As discussed above, the group of participants covered by a particular group bet The current favorite participant at any particular point in time may be the participant on which the greatest total amount has been wagered to win the race at that particular point in time. Thus, the current favorite participant may change over time as various amounts are wagered on the participants in the race event. For example, after a number of wagers have been placed on a particular horse race, horse #3 may be the current favorite (i.e., the total amount wagered on horse #3 is greater than the total amount wagered on any other horse in the race). Suppose after some time, the total amount wagered on horse #5 exceeds the total amount wagered on horse #3 (as well as the amount wagered on each other horse in the race). Horse #5 thus becomes the new current favorite. To illustrate this type of group bet In some embodiments, particular group bets At step At step At step At step At step At step At step It should be understood that in various embodiments, the steps of the method shown in A Group Bet Having a Payout Fixed at the Time the Group Bet is Received As discussed above, in some embodiments, payouts for each group bet For exemplary purposes only, the following discussion regards an example horse race having seven horses, Horses #1-#7, in which a group bet At step At step Regarding table At step Regarding table At step At step At step At step It should be understood that in various embodiments, the steps of the method shown in The characterization of a particular participant as a favorite, contender, or longshot is based upon the odds of that particular participant to win the race as determined by the betting public. The allocation of a participant as the favorite, as a member of group A, or as a member of group B may be performed according to the odds of each participant to win the race at the time (or substantially at the time) the group bet In the embodiment where the allocation of participants in the particular groups A or B remains undefined until the odds to win the race are determined for the participants at the close of betting, group A may be represented to the betting public as a group of horses that will not include the eventual favorite in the race, but that will include two or more contenders to win the race, and group B may be represented to the betting public as a group of horses that will not include the eventual favorite in the race or the top two or three contenders, but that will include the remaining horses in the field, or the longshots to win the race. A group bet As described above, the group bet Although the allocation of participants illustrated in The payout for the group bet Although embodiments of the invention and their advantages are described in detail, a person skilled in the art could make various alterations, additions, and omissions without departing from the spirit and scope of the present invention as defined by the appended claims. Referenced by
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