Komodo 5 is single core, so if you were running the other two engines on multiple cores, that could explain a significant difference. Even so, I wouldn't expect Komodo to lose all 20 games. I would check to make sure all your settings between the engines were as equal as possible; same hash size, ponder off for all engines, etc. Then I'd rerun the test.
How many cores (or threads) did you have set for Houdini and Stockfish?
I have these engines on my computer, and thought it would be fun to match them in bullet. so far each has played each engine many time's but here is the score so far,
Houdini VS Komodo 10-0=0
Stockfish VS Komodo 10-0=0
Houdini VS stockfish 6-3=1
Since Komodo lost all 20 games i did not think it necicary to play more games with it, and now only have houdini and stockfish playing. have you guys tried this and what do you think of this idea?