What is the power of your open hands? It was without weapons I mean.
AFAIK, open hands do only 1-2 base damage even if they hit normally (it's one of the tricks in the melee strategy to ensure a pristine eye from mother seal). So an unarmed glancing blow probably does 1 damage always, with no bonus tacked on.
DEF: 131 (8.8% × 51 (3) (3) (3) (36) (3), win in 13)
I think this means the script thinks you will do exactly (0.088*99+0.112*1=) 9.624 damage *every round* (because it uses average value as if it was guaranteed value).
This is a problem because thinking "100% chance of 9.624" instead of "8.8% of 99 and 91.2% of 1" can kill you - if you are one hit away from getting killed and 9 would kill the monster, you have 91.2% chance of getting beaten up.
And *that*'s a problem because to deal with it you need either more branching (and probably noticeably slower processing), or some sort of approximation (like, say, using a different combination than an average [1]) which won't be as precise, or just forgetting about it and getting what you deserve (in this case - ingorance in, ignorance out: IIIO)
ETA: [1] any given combination will be, depending on the situation, either needlessly pessimistic, or dangerously optimistic; changing the coefficient will always increase one of these. Unless you know which one of them you are in, but that's probabilistic (except in round 1) and leads to solution "more branching".