There’s been a lot of talk about hand histories and Isildur1 lately — and it reminded me of an recent interview I heard with Patrik Antonius.

When the Finnish pro first ran into Isildur1 at the tables, he struggled, and the enigmatic Swede took Antonius for a boatload of cash, and it contributed to a week-long loss of more than $3.7 million in November.

After that — according to his interview — Antonius decided to do some studying.

He railed the Swede and looked back at his own hand histories, dissecting Isildur1’s play — something he’s never done against any opponent, Antonius said.

After studying, Antonius rallied, and is up $2.5 million on Isildur1 ever since the mystery player came on the poker scene in September.

If Antonius — one of the best cash players in the world — took time to study hand histories, you should too.

Go back and flip through the hands, like Antonius did, make some notes on your opponents and look at the hands you lost and won. If anything, studying your hand histories will help you close up leaks in your game. Those hand histories are there for a reason.