Though only marginally taller than Lester Piggott, it's easy to imagine that your 7650 would be no good when it comes to horse racing. However, Mobilegamer.net have released Mobile Jockey, something which, on the face of it, looks like the 7650's answer to Digital Red's equivalent, Horse Racing...

On this page on Handango, we're told " Mobile Jockey is the first horse racing game for Nokia 7650 in the world. It is a action game suitable for all aged group. Player should win the champion or first running up every round. The prizes in every round are different. User should win the maximum total prizes for their horse. The users can select one of four different horses with different characteristics to join the game.

Taking up only 95Kb and costing only $9 (no demo thought), this may be what you're looking for. But then again, maybe it's not. It all depends on whether or not you're looking for a horse racing game, I suppose. :roll: