I have to laugh at the people who bother to look at the "Statistics"

In the real war event pilots would become known to the other side because of their reputation, but the various staff officers did not plan missions with regard to whether or not a specific enemy pilot would be in the air or not. Missions were planned to take advantage of the resources at hand to accomplish the objectives assigned.

The one certainty you took into the air with you on a mission was that NOTHING was certain. Was the fellow flying the red triplane REALLY the Red Baron or just a rookie acting as a decoy ?

If you are really serious about counting the odds and hopefully loading the game in your favour, then might I suggest that you create an Alter Ego and play against yourself, or perhaps consider a career as an accountant.