Meet Justin Tan
Justin Tan is a FIDE Grandmaster who uses the platform under the username justantan. He is not just a titled player who occasionally logs in for a quick game. His online life is a blitz marathon, an opening laboratory, and a rivalry factory all combined into one chess profile.
The Blitz Life
If there is one thing the data makes clear, it is that Justin loves Blitz. He has played thousands of rated blitz games, with the longest winning streak reaching 19 straight wins. While the longest losing streak of 12 games shows that even Grandmasters have rough nights, the overall story is one of steady expansion and intense volume.
Peak Blitz form matters too. He has touched 3003 (2025-06-26) at least once in the middle of a long online grind, and his best hours tend to cluster around 3 PM, when his win rate climbs highest.
A Repertoire of Loves
The opening history is wild in the best way. As Black he often goes for the Caro-Kann Defense, while the Sicilian Defense: Najdorf Variation is a steady presence on both sides of the board. He also enjoys the playful Blackburne Shilling Gambit, and his results there are public may have something to say for offbeat chess at any title level.
Known Rivalries
Every online fighter has an archrival. For Justin, the most played opponent is Marcus Harvey, with over 270 head-to-head games. He also shares a long queue with Christopher Repka, making for a real three-person office hours of online blitz.
Numbers Behind the Grind
- Nearly 89% of the games he initially fell behind in still ended as wins, so he stays combative when the engine critic is biased.
- Value average wins last around 79 moves, so he is not speed-running games and skipping the endgame.
- White is a scorer's responsibility: he wins about 54% with White and 48% with Black, which explains why the White pieces are always fun to see.
- The best time of day to play, according to his own win-rate curve, is 15:00 UTC, likely called a magic 3 PM hour.
- Tilt can find him too. The data records a 12-game losing streak, but the overall blitz record is still clearly on the positive side.
The Verdict
Justin Tan combines the title of Grandmaster with the appetite of an online blitz gladiator. He is not afraid to play offbeat openings, to fight 5,000-game rivalries, or to keep grinding through a bad evening. If you see justjustin in your lobby, bring a good opening book and a comfortable chair. It is going to be a long one.