Darts

Do I have to me good at it or is someone just going to pay me to do it regardless? I guess motorsport

Online Chess is now officially Esport... so that... xD

I'd be the next Hikaru Nakamura, live stream chess stuff and act cool af.

Snooker.

Curling.

Chess

Magic: the Gathering

It's a sport if it was on ESPN!

Golf.

Swimming.

Ranked Competitive Sex.

Foxy Boxing

Disc Golf!

Ping pong. You might think all the humiliating losses as my reflexes slow down might become hard to take, but if they don't bother me now, why should it bother me later?

Chess

If esports count, I'd like to be like this guy and get a contract to play rhythm games professionally

Otherwise... Probably swimming or race walking, not too many professional sports I could think of that one can do into their 60s without wrecking their body

Rowing or swimming. As long as I'm not trying to be world record level, I won't be ruining my body. If I'm just training as much as they do, it won't be much worse than a full time job.

I would have picked skydiving, but the lead exposure is a little too much for me to want to do it as a 10 jumps a day type of job.

Marion Tinsley died at age 68 while still holding the World Checkers Championship. A number of chess players including Ivanchuk and Anand are in their 50s and still mighty strong, though not WC strength.

https://en.wikipedia.org/wiki/Marion_Tinsley

Billiards.

Bowling

Do esports count? Because that.

Race car driver

How about E Sports? I'm not competitive good, but I can play video games all day.

Disc Golf

Cricket. There are many different roles in the team and you get to hang out outside with your teammates all day. Also, if it rains you go inside and have something to eat.

Every last one of you could have chosen drone racing and yet none of you did.

Drone racing.

Biking or swimming

Chess boxing https://en.wikipedia.org/wiki/Chess_boxing

Esports/mlg. I actually wanted to explore video gaming as a competitive career as a kid, throughout my teens and a bit beyond. Disability and near-death struck at 21 and dashed that, though. I still play rather well for racing games, but fps I struggle competitively due to partial blindness and loss of the use of my right hand. I use an ambidextrous Logitech G903, using both sets of side buttons (both left and right side), if you're wondering; all critical functions and movements go on the mouse, with secondary (like map, equip/use, toss item, inventory/hotbar...) remaining on the keyboard.

Also, while not a sport...

Oh powerlifting, and I wouldn't be competitive. Just lift whatever I could, and lose the competition, forever. I guess that's amateur though? Hmm.

I cannot imagine anyone paying me to play any sport at all.

Why not pick the laziest sport and try to become a real world Happy Gilmore ( minus all the rage enduced swearing or childish antics on the field ).

Karate.

Table Tennis. (A.K.A. Ping Pong, but that's actually a trademark)

Darts.

Football kicker

chess

Badminton

Ice skating and/or inline skating. Not sure how safe that is to do for so long, but I like going fast.

Not the most professional, though there are world cups, but playing pétanque is surely something you can do til 65 and beyond!

Table tennis

Table tennis

Running or cycling.

Olympic walking. I'll be taking it really really easy. I'll have headphones and an ice cream cone

43-Man Squamish.

Snooker.

Skiing, as I actually enjoy it.

Fencing