Due to the way battles are classified, putting an exact number on victories, losses, and draws can be tough. But here's a good rough estimate:

• Union: 215

• Confederacy: 140

• Inconclusive: 71

The inconclusive ones can be dicey. Often they were Union victories followed by retreat, or Confederate attacks that were pushed back but not defeated. The numbers aren't really black and white.

This is going by Wikipedia (list of battles), which in turn refers primarily to a Civil War Sites Advisory Commission Report.