Matt O'Donnell opened to 60,000 from late position with Anderson Ireland calling in the cutoff and Hai Chu defending the big blind.
All three checked a flop bringing the on the turn.
Two more checks saw Ireland bet 75,000. Chu check-raised pot to 417,000 and Ireland called.
The fell on the river and after a bit of time, Chu got a count of 615,000 from his opponent and moved all in. Ireland snap-called to put himself at risk.
Chu tabled the for a ten-high straight but Ireland made the nuts with and scored a massive double up to take the chip lead.