For the last couple of years complex game pitch counts (all the time in the DSL, often in FCL) are logged as 4 pitches for a walk, 3 for a K, and 1 for every batter.  I have no idea why.  That formula is not perfect.  He faced 18 batters and got 4Ks (so at least 8 more pitches) but it gets one close to reality.