Lor delivers a solid blow, but not enough to destablize Bo (natural 17, 19+1-2 confirmation).
Bo takes 13-5 and has 57 hp left.
Bo retaliates with six arrows, and two arrows get past the chaotic shield and hit Lor (lowest hitting roll 31-2+1, highest missing roll 30-2+1).
Lor takes 26+2 total damage and has 21 hp left.
Round 9!