The history of pool has walked hand-in-hand with the winning and losing of money. Obtaining its commonly referred name from its early years when gamblers would convene at billiards saloons to consolidate their funds while placing some off-track horse racing bets, this game of pockets, cue sticks and chalk has become synonymous with taking other people's hard-earned capital. Looking to sponsor a different kind of exchange, Diamond Billiards, together with the national nonprofit Patient Services Inc., holds a day-long pool competition and raffle from noon-7 p.m. Nov. 28 to help raise money for Madelyne Blanton, a 7-year-old who's diagnosed with leukemia. Hardly hustling anyone, you can break out your best Paul Newman impression and $20 to play for a good cause. 794-8787.