>>3973913the B-team players in SC1 would play for ~14hours/day. There's also lots of interviews with coaches and even a documentary, there's some people who'd play 20hours/day for months before big tournaments.
but generally speaking you're correct, the standard schedule was 12hours of practice/day.
here's idra's team schedule from his days at CJ Entus
9.00 wake up
9.00 - 11.00 shower/breakfast
11.00 - 15.00 practice
15.00 - 16.00 lunch
16.00 - 21.00 practice
21.00 - 22.30 dinner
22.30 - 1:30 practice