3 people win a NFL bet. Betting commissioner to pay 9K, County Sheriff awards money to commissioners ex-wife?

A betting commissioner of an office football betting pool accepts bets, held the stakes, issued receipts, and charged 5% for his services. For some bets he would cover the amount by making off-setting bets with other betters. If there were not enough off-setting betters, he would cover this risk with his own money. Three people bet on the NFL Super Bowl and won $3,000. Commissioner had to cover these winnings with $9,000 of his own money. Prior to paying out this amount County Sheriff attached the entire amount to satisfy a delinquent child support payment against betting commissioner. The three winning bettors sue the ex-spouse for the $9,000. Who will prevail?