I did some searching on the first 4 of the super improvers (400 to 500+ in two years).
E is from Netherlands and plays in a lot of tournaments at several different rooms/clubs, including regional ranking events. He started playing (getting games into FargoRate) summer 2022--a year before the 400 rating and has played a lot since
J1 is from Edmonton Alberta CA and plays in League and lots of handicapped tournaments --medium and hot handicaps. I saw a congratulatory post after a tournament that referred to "Young J1," like "Way to GO! Young J1"
J2 is from Florida and plays multiple nights of USAPL league and frequent tournaments (525 & U, 550 & U, etc). I saw a congratulatory post from his League Operator, saying "Welcome to the 500 Club J2! This player has improved SO much over just a few short years..."
Y is from Texas and plays multiple nights of Dallas USAPL league. Tournaments are mostly CSI events --Louisiana and Texas. I saw a congratulatory post from his league operator for qualifying for the regional event
Motivation + Opportunity + Supportive Community might just be a winning combination...
I suspect most of these players are playing league (sometimes multiple nights) and tournaments as well. I checked four players who had arounf the average (875) number of games played, and all four had both leagues and tournaments
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