Karol Kacprzak: A FIDE Master Turned Online Speed Demon
Who Is Karol Kacprzak?
Karol Kacprzak is a FIDE Master who treats bullet chess not as a pastime but as a competitive sport. He has crossed the 3,000 rating mark in both bullet and blitz, with a career peak of 3001 (2025-06-06) in bullet and 3011 (2026-06-13) in blitz. For a titled player without a grandmaster title, those numbers are loud, and they say one thing: do not give him a clock with less than five minutes.
From Modest Numbers to the Stratosphere
Kacprzak started online in 2018 with a blitz rating near 1500 and a bullet rating near 1900. By 2025 he was pushing past 3000 in both formats. The trajectory is part slow grind, part rocket launch, and entirely impressive.
Style: Grind, Comeback, Repeat
His playing style is defined by resilience. In a world where players rage quit after a single blunder, Kacprzak comes back from losing positions at an absurd rate. His comeback rate is 89.6%, and he still wins 52.3% of games after dropping a piece. He also reaches an endgame in 85.7% of his games, which is remarkable for bullet.
- Average moves per win: 85.5. He enjoys the long game even in short time controls.
- Early resignation rate: only 12%. He makes opponents prove every point.
- White win rate: 55.8%, and black win rate: 52.3%.
- Longest winning streak: 14 games. Longest losing streak: 12 games, because when he tilts, he tilts with commitment.
His opening repertoire leans on the Caro-Kann Defense and the Sicilian Defense: Najdorf Variation, with frequent visits to the London System. In bullet, he also loves offbeat tries like the Amar Gambit and the Hungarian Opening, which keep opponents off balance.
Rivalries and Familiar Foes
No one has faced Karol more often than Kacper Kacprzak. They have played 80 games, and the score is almost perfectly balanced: 31 wins for Karol, 32 wins for the other Kacprzak, and 17 draws. It is either a fierce rivalry or a very productive family argument.
His record against TheUnderDog001 is much more one-sided. In 28 games, Karol collected 24 wins against 3 losses and 1 draw, proving that some underdogs stay under.
A Midnight Warrior
Kacprzak's best time of day to play is midnight, which makes sense for someone with more than 2,700 bullet games on the clock. His rapid chess is less developed, with a peak around 2362, but he never claimed to be patient in the traditional sense. The bullet board is his office, his playground, and occasionally his crime scene.