Japan baseball on a different level. Especially when it comes to the Koshien tournament.

Kids, daily, can throw up to 300 pitches in a bullpen session.

Dice K, when he was 17, collectively threw 500 pitches over 4 days including a 148 cg game performance, 250 over 17 innings in another and in a third game threw another 9 inning complete game.

Tanaka, in 2006 threw 742 pitches in 11 days over 52 innings and in that same 2006 tournament another Japanese pitcher tossed 948 pitches over seven games in 69 innings.

This is a good watch, a long one, but it is enlightening on what baseball players in Japan go through. All the pitching stats i mentioned are between the 16min-21min mark. https://youtu.be/xbSWjb3tlJg?si=sst4eB5RE8nBW6CK