As the Ontario Sires Stakes program celebrates its 40th anniversary and with this Saturday's Super Finals on the horizon, we take a look back at the program's most prolific competitors.

For decades, the program has produced world-class pacing and trotting talent. Which horse sits atop the all-time OSS earnings list? Here are the top 10 money earners in OSS history, starting with #10 and counting down to #1. To start the list, click the following link: Ontario Sires Stakes - Top 10 Money Earners.