A Little Luck won the final leg of an all-stakes pick four Calder offered as part of their Grand Slam II program Saturday, ensuring bettors would need a lot of luck to cash a ticket. The wager, with a $1 minimum bet, returned $77,762.40 for every dollar wagered on the winning combination as longshots won all four heats.The four winners in races linked by the wager – all graded stakes – were Prospectress ($21, La Prevoyante), England's Rose ($35, Chaposa Springs), American Halo ($154, Fred W. Hooper), and A Little Luck ($23.20, W.L. McKnight). On the day at Calder, favorites won only the first and last races on the 12-race card, with all 10 winners of races 2-11 paying double-digit or higher win mutuels.The Grand Slam II pick four wager generated a total handle of $291,465, less than a similar pick four offered on Grand Slam I day earlier this month, but slightly more than the $280,086 an all-stakes pick four generated on Summit of Speed day in July. The pick four on Grand Slam I returned a healthy $6,678.60 as Florida-breds wearing saddle cloth three swept all four legs.Attendance of 9,540 at Calder Saturday marks a high for the meet. The on-track patrons wagered $1,142,836, the second highest total of the meet behind Breeders' Cup day.