According to cash game tracking site HighStakesDB, Phil Ivey (pictured), playing under the screen name RaiseOnce, just endured a 30-hour session on PokerStars, competing against Russian poker pro Timofey “Trueteller” Kuznetsov.

As we turn the page to June, it’s time to look back at some of the biggest winners at the high-stakes online tables in May, according to HighStakesDB. The leaderboard is chalk full of brand name poker players this time around.