1st to orgasm - a wrestling match with a table or booth with straps set up next to it where the girl who orgasms first loses. THAT'S A GOOD IDEA....here's a few more variations on that theme:
1) combine with a "four corners" theme - the winner must make opponent orgasm in ALL four corners.
2) for tag teams, must make BOTH members climax.
3) a "fatal four way" same "first to" stipulation but with multiple opportunities for double/triple teaming.
4) a "lumberjack" match - girls outside the ring may "work" whoever leaves the ring for (x seconds/minutes) before throwing her back in. (probably not an easy one to write)
5) combine orgasm w/"slave match" - loser or her "partner" - or both - "slave" to the winner(s) for (x days) after...or suffer some other humiliation (hair cut, etc)
Paddle on a pole is good also. Again, some ideas on variations:
1) Dildo on a pole (turns wrestling into a sexfight)
2) Key on a pole (unlocks the holders "partner" from (cage, handcuffs, whatever) to help her win the match. Same key can release both partners, so just getting it is only half the battle, they have to use it...and even after it's used, the other girl could -theoretically- get it to release HER partner to even things up). I can see your jobbers still losing the match in this scenario!
3) Handcuffs, slave collar, leg irons, ball gag (endless number of things can get dangled)
4) Light bulb on a pole. Retrieve it, screw it in and turn on the light. (How many jobbers does it take to screw in a light bulb?)
A "Marco Polo" match? Both fighters blindfolded; have to shout "Marco"; other must reply "Polo" so they can find one another. (Or have accomplices at ringside screaming directions to them?) Naturally, the jobbers "friends" might get taken out, or they may not even have any friends in this kind of match).
Submission/Pins strip match. Each time someone submits/is pinned, lose one article. (start in 2 piece, a thong, two socks, two shoes)...or make shoes one item, socks a second to speed things up. Can handicap it so the jobbers have more articles to lose?
Oil or mud wrestling. Can have them fight in a swimming pool or hot tub (knee deep). How many jobbers can drown in 2 feet of water?