Boxing should not even be on the list, it sure requires skill and training, but the long term health issues and brutality of boxing are horrendous.
Gym should of course be No 1, to be that good on four events, or six for MAG is quite unvbelievable.
Golf, snigger, now that is funny. You can even ride a cart between swings. Skill is required, but really the biggest risk is getting hit in the head by a stray drive.
Rodeo, also not a sport, just legalised suicide akin to boxing.