|Chainmail result||-2 or less||-1 to +1||+2 to +4||+5 or more|
Adjustments (to the effective level of the jouster, I assume)
Heavy Warhorse +1
Plate Armor +1
Light Horse -1
Leather or No Armor -1
Magic Spear + the bonus of the spear
M Miss, no effect
G Glances off: -1 to 3 hits to defender
B* Breaks lance: -1 to 3 hits to attacker, -0 to 2 to defender
H* Helm knocked off: -1 to 3 HEAD hits to defender
U Unhorsed: -1 to 6 hits defender if wearing plate, -1 to 3 if chain
I Injured: -1 to 8 hits defender if attacker wielding battlelance, -1 to 4 if jousting lance
2I Two Injured results.
Hits here is shorthand for hit points of damage.
This was using the Blackmoor hit location system - can only take 15% of total HP as a head hit, very dangerous.
I'm trying to figure out the handwritten notation at the bottom left of the table. it might help to dig out a copy of Chainmail.