MSPT Venetian champion and WSOP Online tournament winner
POKER HALL OF FAME
Inducted 2014
Sergei Kislinskii is a Russian poker player with results in both live and online tournaments. His record includes a 2023 MSPT Main Event victory at The Venetian and two titles reported during the 2026 WSOP Online Fall Bracelet Series, where he plays as CaseyStewart.
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A live title at The Venetian
Kislinskii won the $1,600 MSPT Main Event at The Venetian in Las Vegas on November 29, 2023. The organizer’s event record lists 238 entries and a $73,019 first prize.
In the accompanying MSPT interview, he described himself as a cash-game player who had played poker since 2007. He also discussed adding study to his tournament preparation. Those comments describe his approach at the time of the 2023 victory.
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Results as CaseyStewart
Poker.org’s 2024 WSOP Online reporting identifies Kislinskii with the CaseyStewart screen name and records a runner-up finish in that year’s $888 Fall Crazy 8’s event.
An October 24, 2026 Pokerfuse report credits him with wins in the fall series’ $2,000 Big PKO and $500 six-max events, plus runner-up finishes in its $1,000 Deepstack and $888 Fall Crazy 8’s tournaments.
The official fall-series leaderboard displayed CaseyStewart first with 2,344.6 points in its October 21 snapshot. That dated standing is separate from the final series result.
Tournament prizes are gross payouts and do not establish profit or personal net worth.
