What’s up buddy
The answer is ATP 250. It’s not even close. The game really tapers off in those upper echelons and there is a vast gap between the two. For reference, someone who might win a junior slam would be from 13.2-13.9 I wanna say off the top of my head. It’s not a perfect range, like Sakamoto who won the AO this year was below 13.2 at the time I believe, but if I had to estimate an average range that’s it. Guys winning 250s are in the 15 UTRs, world class players. If you review past junior slam winners it’s a lot of big time tour players sure, but don’t misinterpret that.
There’s a lot of seasoning that usually goes on after that where you earn your stripes and get a better handle on the ropes, not just level wise but also the aspects of tennis as a professional occupation. The vast majority of JS winners lack the physicality and conditioning to hang across a 250. Granted, there are some really noteworthy specimens who are that gifted and developed, but only some. Anyway that’s just if they’re physically capable or not that’s not even getting into discussions of level.
I’ll say this, and no disrespect to him, but Kaylan Bigun won the junior French this year, and then lost R32 at Kalamazoo, which is 8 rounds. Lost a tight match to Johnston, a 12, on hard (not clay like the French). I could talk about how he’s been struggling to make it out of challenger qualifiers (if anyone says Vegas, pretty sure he got WC there), but don’t really need to because the above says everything that needs to be said. Nobody winning 250s or capable of winning 250s is losing 3rd round at Zoo’s, that’s just the truth.
The two crappiest 250s I could think of on the calendar this year were Cordoba and Hangzhou. Darderi won Cordoba, beating Baez who later won an ATP 500 in Brazil, and Cilic won Hangzhou. Cilic won the 2014 US Open. It’s way harder to win a 250. Thanks for the question, let me know if you have any more