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Poker Hand Matchup: John Riordan vs. Jason Koon

Swords K 5 4 9 T

John Riordan

Win Pre-Flop Win Post-Flop Win Post-Turn

Starting Stack: 1,700,000


61.44 %

12.63 %

6.82 %

Jason Koon

Win Pre-Flop Win Post-Flop Win Post-Turn

Starting Stack: 385,000

K 3

38.01 %

87.37 %

93.18 %


Posted On: Jul 20, 2021


Preflop, with six players remaining and blinds of 10,000-15,000 and a big blind ante of 15,000, John Riordan raised to 30,000 from under-the-gun. Jason Koon called from the big blind. On the flop Koon checked, and Riordan bet 20,000. Koon called. On the turn Koon checked again. Riordan bet 75,000, and Koon called. On the river Koon checked for a third time. Riordan bet 500,000. Koon called all-in for 245,000.


John Riordan made four cashes during the recent U.S. Poker Open, including a win in the $10,000 big-bet mix event for $163,200. After such a successful showing at the USPO in June, the 2011 WSOP Circuit Palm Beach Kennel Club main event winner returned to Las Vegas for the first-ever running of the PokerGO Cup. In this hand Riordan clashed with high-stakes tournament regular Jason Koon, who was already sitting in ninth place on poker’s all-time money list prior to making this final table. With six players remaining, Koon was the second-shortest stack with 25 big blinds. Steve Zolotow had just 14 big blinds to start this hand, a fact that likely impacted how things played out. Riordan, who was the chip leader at the time, picked up A-Q as the first to act and min-raised. Koon defended his big blind with a suited K-3 and flopped top pair. Koon check-called Riordan’s small bet of 20,000 on the flop and the turn made a backdoor flush draw possible. Koon checked again and Riordan fired a larger bet of 75,000 into the 125,000 pot on the turn, likely trying to force folds from weak middle and bottom pair holdings. Riordan’s bet was called, and the river brought the 10Club Suit. Koon now sat with just 245,000 left in his stack, while the pot had already grown to 275,000. Koon checked his top pair for a third time. Riordan had a queen in his hand, an important blocker to possible straight holdings, and he elected to fire the third barrel, betting enough to put Koon all-in for his remaining 16 or so big blinds. While Koon had top pair, his table talk while in the tank made it clear that his kicker made him unsure of how to proceed. “King very good, other card… very bad,” said Koon while in the tank. “I have a three in my hand. A three is a really bad card. You could have A-3 suited, that’s a fun hand to bluff with.” After considering the situation for a bit longer, Koon made the call for his tournament life. His hand was the winner, earning him the double up to over 50 big blinds. Riordan remained the chip leader despite the loss.

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