Speed Demon
Joseph Jimenez, known to the chess world as Josjimal, is a FIDE Candidate Master with a serious need for speed. His preferred battlefield is bullet chess, where his peak rating of 2810 places him among the fastest and most fearsome players on the platform. He has played thousands of bullet games, sometimes more than a thousand in a single month, which suggests he simply does not believe in slow chess.
While he is also a strong blitz and rapid player, with rapid ratings climbing past 2500, bullet is clearly where his heart lives. Give him a clock with almost no time and he will somehow find the best move anyway.
Opening Laboratory
Joseph's opening choices are a mix of rock solid theory and personal invention. As White he loves the Queen's Gambit Declined and the Slav Defense, and he has a special fondness for the King's Indian Defense Four Pawns Attack. As Black he is a regular in the Sicilian Defense: Najdorf Variation, where he has amassed hundreds of battles and a healthy share of wins.
His white pieces are especially dangerous, with a white win rate above 56 percent, and even with black he manages to score wins more often than not.
Friendly Fire
Every great player needs a great rival, and Joseph found his in Fernando Mata. The two have clashed 267 times in a rivalry that defines the term "online chess feud." Joseph holds a narrow edge with 131 wins against 126 losses and 10 draws, but the margin is so tight that every rematch feels like a final.
It is the kind of rivalry that keeps both players coming back to the board at all hours, chasing one more win and one more story.
Clutch Gene
Joseph does not go down without a fight. His numbers paint the picture of a player who thrives under pressure and refuses to give up.
- Comeback rate of 85.4 percent, meaning he regularly rescues lost positions.
- Win rate after losing a piece sits at 51 percent, proof that he is dangerous even when material is missing.
- Longest winning streak of 14 games, plus a longest losing streak of 11 games, because every hero needs a struggle.
- His best time of day to play is 19:00, when the tactics are flowing and the coffee is still warm.
Career Snapshot
Here is a look at Joseph's bullet rating journey and his opening performance across all time controls. The climb is steady, the volume is enormous, and the peak is genuinely elite.
Peak bullet rating: 2810 (2026-07-02)