Hac Dang, known online as “Trex313,” is a Vietnamese-American former professional poker player from northern Virginia and one of the most successful online cash game players of all time. A mechanical engineering graduate of the University of Virginia, Hac amassed over $8.5 million in tracked online winnings alongside his brother Di “Urindanger” Dang - the two combining for over $17.5 million between them across Full Tilt Poker and PokerStars. Since retiring from high-stakes online play, Hac has co-founded Happy Endings Hospitality, a growing restaurant group in northern Virginia.

Career Earnings & Biggest Results

Hac’s live tournament record consists of just two recorded WSOP cashes totalling $47,003 (according to The Hendon Mob), headlined by a 98th-place finish in the 2009 WSOP Main Event for $47,003 - a run ended by Phil Ivey in a cooler that has since become part of online poker folklore.

His online record is where the real story lies. Across his “Trex313” account on Full Tilt Poker and “1Il|1Il|1il|” on PokerStars, Hac tracked over $8,500,000 in online cash game winnings, ranking him sixth on HighStakesDB’s all-time list of biggest online winners at his peak. In 2008 alone, he netted $3,171,000 across 144,379 tracked hands on Full Tilt. He was up nearly $5.6 million on Full Tilt before its shutdown in 2011, then returned following the site’s relaunch in November 2012 and added another $1.61 million between then and August 2013. The largest pot of his career came in 2008 when he set-over-set Tom Dwan for more than $500,000 at $500/$1,000 no-limit hold’em.

Biography & Poker Background

Born in Vietnam, Hac Dang moved to the United States to attend the University of Virginia, where he studied mechanical engineering and discovered online poker alongside his brother Di. The brothers began by pooling a $200 bankroll, losing it, depositing another $200, and building from there. From 2004 onward, they became two of the most feared names in online high-stakes play. Hac focused initially on no-limit hold’em before transitioning to pot-limit Omaha in 2008 and 2009, a move that coincided with some of his biggest winning years.

Unlike his brother, Hac continued playing professionally after Black Friday, relocating to Vancouver, Canada to access the games. He kept grinding until around 2013, by which point Di had already launched Chasin’ Tails, the crawfish boil restaurant that would become the foundation of their joint hospitality venture. Hac was initially sceptical - he had no restaurant experience and barely knew how to cook - but joined his brother anyway. The gamble paid off. Together they co-founded Happy Endings Hospitality, which grew to encompass six restaurants across northern Virginia serving a mix of cuisines. Hac went on to become a coach on Run It Once, Phil Galfond’s training site, sharing his PLO expertise with the next generation of online players.

The 2009 Main Event remains his most memorable live moment for reasons beyond the result. After getting his chips in good against Phil Ivey, Hac was eliminated by a brutal runout - a story he has recounted publicly and one that neatly captured the difference between online nosebleed games and the Main Event spotlight he rarely sought.

Play Style & Strategy

Hac was a pot-limit Omaha specialist known for discipline and patience in games populated by hyper-aggressive opponents. Unlike many of his nosebleed peers, he was not prone to tilt - a quality that made him a consistent, grinding winner rather than a boom-or-bust participant in the biggest pots. His transition from no-limit hold’em to PLO midway through his career demonstrated adaptability, and his subsequent work as a Run It Once coach reflected a genuine understanding of the game’s theoretical underpinnings.

Social Media & Online Presence

• The Hendon Mob Profile
• WSOP Official Profile