Box with her.

Wrestling didn't work, so you decide to try boxing. Maybe it's Helene's experience, or maybe it's the damage you already took, but you quickly find you're no match for her. You score a couple hits on her, including one that sets her nose bleeding, but for every punch you land on her, she hits you with four or five. By the time you realize how badly she's beating you, it's too late to do anything about it. Helene forces you into a corner, peppering you with hard gut shots. You're ready to bend over and barf, but instead she drapes our limp arms over the top ropes and goes to work beating any remaining fight out of you. You've already taken a pounding, but she shows no mercy. She pounds your face and stomach, paying particular attention to your tits, which she enjoys pancaking into your ribs, or trying to send them flying with brutal hook punches. Eventually she gets tired of hitting you, and you've almost passed out, anyway. She drags you off the ropes and you collapse to the mat, hard. She hooks her hands under your arms and drags you to the center of the mat to finish you. You put up a good fight, but you lost, and now she's going to put the exclamation point on her victory.

In the middle of the ring, Helene reaches down and strips your suit off. She makes you sit up and ties your hand behind your back with it - unnecessarily, as you're in no shape to resist her even if your hands were free.
She goes to her corner and removes a nasty-looking strapon from her bag. She slides it over her hips and comes back to the center of the ring. She lays on top of you, forcing her tongue into your mouth. Her hands roam your tits, pulling and tweaking your nipples as she kisses you. Down between your legs, she's rubbing the strapon against your entrance. Soon you find your hips moving as your body responds to her attention. She slowly slides the strapon in, driving it up to the hilt, giggling as you let out a gasp. She starts fucking you, slowly at first, her thrusts picking up speed and power. She lets go of your tits, holding onto your waist as she starts pounding you. Your hips are bucking as she fucks you wildly, and then you're cumming, eyes closed in ecstasy as she drives you over the edge.
She pops the dildo out - well, that wasn't so bad. You open your eyes and see that Helene is still inbetween your legs with a nasty smile on her face. She rolls you over onto your stomach, then pulls you up onto your hands and knees. She pushes the dildo against your asshole, and you remember her threat.
Do you want to beg for mercy? Maybe she'll go easy on you; This is your first match, after all...