Copenhagen Chess Challenge 2025 - GM
10 players participated in this 9-round tournament, held from 23 Jul 2025 to 27 Jul 2025 in Copenhagen, Denmark. 10 titled players from 5 federations. Top 10 Elo average was 2388, and top seed was Bjorn Moller Ochsner (🇩🇰 DEN, GM, 2478).
Hogni Egilstoft Nielsen (🇫🇴 FAI, IM, 2372) won with 6.0/9, ahead of Filip Boe Olsen (5.5) and Bhagat Kush (5.5). Nielsen shared the lead from round 7 and broke clear in the final round.
The biggest upset came in round 7: Bhagat Kush (FM, 2369) beat Bjorn Moller Ochsner (GM, 2478), a +109-point gap.
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How it unfolded
Top 10 · 9 roundsIM Hogni Egilstoft Nielsen led from R9 onwards, the runner-up race stayed tight. Title race converged from 2 co-leaders at R4 to 1 by R9.
IM Hogni Egilstoft Nielsen takes the sole lead (6.0/9).
IM Hogni Egilstoft Nielsen beat GM Bjorn Moller Ochsner (White).
IM Hogni Egilstoft Nielsen went unbeaten across 9 games (R1–R9).
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇫🇴IMNielsen, Hogni Egilstoft | 2372 | * | ½ | ½ | 1 | ½ | ½ | ½ | ½ | 1 | 1 | 6.0 | 25.00 | 39.0 | +17.1 | 2514 |
| 4 | 🇩🇰IMOlsen, Filip Boe | 2453 | ½ | * | 1 | ½ | ½ | ½ | 0 | 1 | ½ | 1 | 5.5 | 23.25 | 39.5 | +0.9 | 2460 |
| 3 | 🇮🇳FMBhagat Kush | 2369 | ½ | 0 | * | 1 | 1 | 0 | ½ | ½ | 1 | 1 | 5.5 | 22.75 | 39.5 | +25.2 | 2470 |
| 2 | 🇩🇰GMOchsner, Bjorn Moller | 2478 | 0 | ½ | 0 | * | ½ | 1 | 1 | 1 | ½ | 1 | 5.5 | 21.00 | 39.5 | -2.1 | 2457 |
| 5 | 🇩🇰IMKistrup, Nicolai | 2368 | ½ | ½ | 0 | ½ | * | 1 | 1 | 0 | 1 | ½ | 5.0 | 21.50 | 40.0 | +7.7 | 2433 |
| 6 | 🇸🇪GMHector, Jonny | 2427 | ½ | ½ | 1 | 0 | 0 | * | ½ | 1 | 1 | 0 | 4.5 | 20.25 | 40.5 | -5.4 | 2383 |
| 7 | 🇩🇪IMErmitsch, Magnus | 2406 | ½ | 1 | ½ | 0 | 0 | ½ | * | ½ | ½ | ½ | 4.0 | 18.00 | 41.0 | -7.5 | 2342 |
| 8 | 🇩🇰GMHoi, Carsten | 2288 | ½ | 0 | ½ | 0 | 1 | 0 | ½ | * | 0 | 1 | 3.5 | 14.75 | 41.5 | +3.5 | 2319 |
| 9 | 🇩🇰FMMedhus, Vitus Bondo | 2326 | 0 | ½ | 0 | ½ | 0 | 0 | ½ | 1 | * | 1 | 3.5 | 13.00 | 41.5 | -3.2 | 2314 |
| 10 | 🇩🇰IMHaubro-Suppanz, Martin | 2388 | 0 | 0 | 0 | 0 | ½ | 1 | ½ | 0 | 0 | * | 2.0 | 9.00 | 43.0 | -25.2 | 2167 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Bhagat KushFMIND+25.25.5 pts · #3
- 2Nielsen, Hogni EgilstoftIMFAI+17.16.0 pts · #1
- 3Kistrup, NicolaiIMDEN+7.75.0 pts · #5
- 1Haubro-Suppanz, MartinIMDEN-25.22.0 pts · #10
- 2Ermitsch, MagnusIMGER-7.54.0 pts · #7
- 3Hector, JonnyGMSWE-5.44.5 pts · #6
- R7+109 Elo gap
- R6+106 Elo gap