I was thinking last night about grappling, and how M20 has nothing to offer. The few times our groups has grappled, there seems to have been no consistent method of resolving it. Perhaps that is for the best. I don't really like the D&D grappling rules so...
I cam up with these:
Grappling (or perhaps even wrestling and bare knuckle brawling) is a form of Combat which uses two (2) opposed Skill Checks to determine the outcome.
The initiating Character is either already in contact with the target or moves into contact during his or her turn, and then proceeds to attempt a grapple. Both Characters will roll two (2) opposed Skill Checks – one based upon the STR Bonus and one based upon the DEX Bonus (don’t forget the Skill Rank – usually Physical). If one of the Characters is an NPC or Creature without Ability Stats or Bonuses then use the number of Hit Dice for both STR and DEX unless the NPC has a specific Attack Bonus for Grappling.
If either Character succeeds at both rolls the other Character is grappled.
If neither succeed at both rolls the grapple is inconclusive and fails.
There are two (2) types of grapples:
1) Sporting Grapple – Both parties voluntarily enter into the contest, and both agree to set down their weapons.
2) Combat Grapple – not voluntary, and the attacked Character can choose to keep his or her shield and weapons in order to attack with them during the next turn (but if successful in the grapple rolls will not be able to successfully grapple the opponent – only avoid a grapple); or drop the shield and weapons in order to be able to successfully grapple the opponent.
If the action is a Combat Grapple and one Character is successful, he or she may immediately follow up with a bare hand attack against the grappled and defenseless Character.
If a Character is successful in grappling his or her opponent, then the grappled Character may attempt to break the Grapple during his or her next turn (and each subsequent turn thereafter if unsuccessful). This will again be two (2) opposed Skill Checks as described above, but the grappled Character will roll each with disadvantage. If the grappled Character fails to escape the grapple, he or she is pinned subject only to someone else coming to his or her aid. The successful Character may continue to attack the grappled Character with bare hands during each turn.