On Tuesday, it was the track chaplain. On Wednesday, it's 9-year-old racing fan who knows how to read past performances.TV Games Network commentator Todd Schrupp, as part of the network's on-site coverage of Kentucky Derby (gr. I) week, is going to head-to-head with various individuals handicapping each day's races at Churchill Downs. Tuesday's opponent was Ken Boehm, the Churchill Downs chaplain.Wednesday's competitor is Joey Avioli, son of National Thoroughbred Racing Executive Greg Avioli, who said his son did some handicapping for legislators at last year's Derby. The elder Avioli is vice president of legislative and corporate planning for the NTRA."He knows how to read the Form," Avioli said of his son. "He knows who he likes. He's big into jockey win percentages at each track."The younger Avioli had success at the recent Keeneland meet, his father said, when he selected the winning superfecta in the steeplechase stakes on closing day.