Approaching the start of the sixth week of the season at Delaware Park, a pair of apprentices--one a five-pound bugboy and the other still with his seven-pound allowance--are riding high atop the jockey standings. Through Saturday's racing, the Delaware win totals by Gabriel Maldonado (25) and Ederik Robles (18) matched the rookies' ages. Maldonado just finished a blast-off week that saw him winning nine races in a four-day span at three different tracks. On Wednesday, the five-pound apprentice tallied with the last of six afternoon mounts at Delaware, then traveled...