Jason Les biography
Jason Les is an American professional and a respected high-stakes online player, best known as a heads-up no-limit hold'em specialist.
He was one of the top human players selected for the Brains vs. AI challenges organised by Carnegie Mellon University. In the first match the human team beat the AI Claudico. In January 2017 Les, Dong Kim, Daniel McAulay and Jimmy Chou played 120,000 hands of heads-up no-limit hold'em over 20 days against the improved Libratus at Rivers Casino in Pittsburgh; Libratus won by about $1.77 million in chips, a landmark moment for artificial intelligence.
Les also plays live tournaments, including at the World Series of Poker, and has more than $1.5 million in live tournament earnings.
Career summary
Heads-up specialist Jason Les helped beat the Claudico AI and was part of the human team that lost to Libratus in 2017.
Jason Les playing style
Les is a heads-up specialist with a deep, analytical approach to no-limit hold'em.
Cash games
Respected high-stakes online heads-up no-limit cash game player.
Business & sponsorships
Professional poker player.
Why Jason matters
Jason Les was one of the heads-up specialists chosen to play Carnegie Mellon's poker AIs, beating Claudico and then losing to Libratus in 2017.
FAQ about Jason Les
What is Jason Les known for?
Playing for the human team in the Brains vs. AI matches against Carnegie Mellon's Claudico and Libratus.
Who won the 2017 match against Libratus?
Libratus beat the four pros, including Les, over 120,000 hands.
How much has Jason Les won playing poker?
Jason Les has won $1,500,000+ in live tournament earnings.
How many WSOP bracelets does Jason Les have?
Jason Les has not won a WSOP bracelet yet.
