Jón Úlfur Hafthorsson

Jón Úlfur Hafthorsson — Chess Streamer

Jón Úlfur Hafthorsson is an Icelandic chess streamer who turns fast clocks and quick thinking into entertainment. Known for his lively commentary, sharp tactics, and a camera-friendly grin, he invites viewers into a world where blitz battles unfold with the speed of a lightning bolt and the humor of a friendly sparring partner.

Streaming Focus and Playing Rhythm

His preferred time control appears to be blitz, and his streams swing from the thrill of last-second comebacks to the calm of precise endgames. Jón blends teaching moments with playful banter, making complex tactical ideas feel approachable for both newcomers and seasoned players. For fans who like a little data with their entertainment, his profile hints at a broad, well-rounded repertoire across blitz, rapid and bullet formats.

See a quick glance at his performance trajectory with

Opening Repertoire Spotlight (Blitz)

Jón is comfortable experimenting in blitz, with a repertoire that includes reliable and creative lines. Notable Blitz openings and their bite:

• Bishop's Opening: Vienna Hybrid, Hromádka Variation — Games: 401, Wins: 222, Losses: 163, Draws: 16, WinRate: 55.36%
• Vienna Gambit, with Max Lange Defense — Games: 324, Wins: 170, Losses: 139, Draws: 15, WinRate: 52.47%
• Blackburne Shilling Gambit — Games: 280, Wins: 138, Losses: 135, Draws: 7, WinRate: 49.29%
• Amar Gambit — Games: 241, Wins: 104, Losses: 120, Draws: 17, WinRate: 43.15%

Peak Blitz Spirit

Jón has demonstrated impressive blitz resilience, with a peak blitz rating reaching 1835 on 2025-08-27. His blitz journey is visually rich and ready to share with fans through the viewer-friendly chart above. The data underlines a flexible, adventurous style that thrives in fast games and tricky tactical skirmishes.

For a quick look at his profile and history, check jon_hafthorsson.

Other Facts and Flair

• Streaks and temperament: LongestWinningStreak 17; LongestLosingStreak 23 — a reminder that every blitz session is a rollercoaster.
• Endgame sense: EndgameFrequency around 68.5% shows Jón’s ability to outmaneuver opponents in the late phases of a miniature world championship of time scrambles.
• OpeningsPerformance across formats reveal a versatile approach, with strong results in several blitz lines and solid results in rapid and bullet play as well.

If you want a deeper dive, the full openings performance and time-control breakdowns are available in his public stats, and the data continues to grow with every stream.

Notes

All numbers reflect the provided statistics set and illustrate Jón’s broad engagement with online chess formats. This biography emphasizes his streaming career, blitz enthusiasm, and creative opening sense rather than a strict ratings summary.