Hardest Sports to Actually Be Proficient In
"9 out of 10 times the golf course wins" -Pro Football Hall of Famer Jason Taylor
This is tough
Swimming isn't that easy
Let me give you a poll. Hundreds of millions of people play tennis. Do you know how many make it to college, and even less pro? Less than 0.01%. You could train your heart out like me, 6 hours a day, plus conditioning, plus running, plus weightlifting, coordination drills, and exercise bands, while playing 3+ hour matches in 120-degree weather often to fall short and lose the tournament. If you get tight at 5,5 in the third set? That's right, it's up to you to play clutch. It's up to you to hit the overhead the match will determine whether you win or lose. You can't just pass the ball to your teammate and avoid the pressure. And no, there's no "off" season. You're up, everyday training, and travelling around the country to play a tournament every weekend. You can retire if you get injured, but my dad told me I don't care if you're sick. I don't care if you're hurt. Heck, you could be on court dying, but you never, never, retire. And if any of you are wondering, I am homeschool, just to try to get into college.
You're made to spar with guys/girls with years of experience on your first day in a martial art with dozens of positions and guards
By far the most difficult of the martial arts
Takes so much knowledge of technique and tactics. Additionally, the physical capabilities you need are so unique due to the unusual stance.