Gustav Carlsson vs Jon Ulfur Hafthorsson
Gustav Carlsson (28, SWE) and Jon Ulfur Hafthorsson (24, ISL) have met 4 times in classical OTB plus 13 rapid/blitz games. Carlsson leads the classical series 4–0 (0 draws). With current classical ratings of 2131 and 1935, the Elo model gives Carlsson a 72% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 2131 vs 1935 (Δ +196)
With Gustav Carlsson as white
72% Gustav14% draw14% Jon
With Jon Ulfur Hafthorsson as white
63% Gustav16% draw20% Jon
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Gustav Carlsson | Jon Ulfur Hafthorsson | |
|---|---|---|
| Current rating (STD) | 2131 | 1935 |
| Peak rating | 2131 · Apr 2026 | 1935 · May 2026 |
| Peak age | 28 | 24 |
| World rank now | #12,707 | #39,900 |
| World rank peak | #12,707 | #39,896 |
| Federation rank now | #254 | #141 |
| Games (career, STD) | 256 | 257 |
| Months active | 127 | 58 |
| % white wins | 63% | 41% |
| % black wins | 57% | 35% |
| TPR last 12m (STD) | 2144 | 1762 |
| Activity 12m (games) | 107 | 87 |
Best Win
Gustav Carlsson
Jon Ulfur Hafthorsson
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (17)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Gustav Carlsson
Jon Ulfur Hafthorsson