I had a belly punching match some years back. I was mid-30s at the time and had taken part in a few rl matches all of which I had won. This was my first belly punching event though. Rules were simple, we were to take turns to punch each other until one of us touches the floor, wall, furniture with a body part. other than our feet.
My opponent was younger, about an inch shorter, even thinner than me and came across as very feminine and respectful. I came into the battle very confident. We traded a few blows, maybe 4 or 5 without much consequence. Then she hit me hard, hurting me. My immediate instinct was to retaliate quickly and as a result my return punch was not effective. She lined up to take her next shot, driving the wind out of me, my knees buckled as i stooped forward for breath....I was on my knees before her and the fight was over!