SonFlow Cup - Kolding Bymesterskab 2026 - 1
12 players participated in this 5-round tournament, held from 17 Apr 2026 to 19 Apr 2026 in Kolding, Denmark. 12 titled players from 3 federations. Top 10 Elo average was 2385, and top seed was Boris Chatalbashev (🇩🇰 DEN, GM, 2535).
Jakob Leon Pajeken (🇩🇪 GER, IM, 2452) won with 4.0/5, ahead of Boris Chatalbashev (3.5) and Daniel Kopylov (3.0). Pajeken broke clear in the final round.
The biggest upset came in round 5: Martin Matthiesen (FM, 2275) beat Boris Chatalbashev (GM, 2535), a +260-point gap.
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How it unfolded
Top 6 · 5 roundsIM Jakob Leon Pajeken led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
IM Jakob Leon Pajeken held the sole lead from R5 through R5 without losing it.
IM Jakob Leon Pajeken drew with GM Boris Chatalbashev (White).
IM Jakob Leon Pajeken went unbeaten across 5 games (R1–R5).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1IMJakob Leon Pajeken | * | ½ | — | — |
| 2GMBoris Chatalbashev | ½ | * | 1 | 0 |
| 3IMRasmus Skytte | — | 0 | * | ½ |
| 4FMMartin Matthiesen | — | 1 | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Pajeken, Jakob LeonIM | 2452 | GER | +9B | +4N | =2B | +8N | =3B | 4.0 | 11.5 | 13.5 | 10.25 | 2647 | +12.0 |
| 2 | Chatalbashev, BorisGM | 2535 | DEN | +10N | +3B | =1N | +6B | −5N | 3.5 | 13.0 | 15.0 | 10.00 | 2520 | -0.6 |
| 3 | Kopylov, DanielIM | 2434 | GER | +12B | −2N | +5B | =4N | =1N | 3.0 | 13.5 | 13.5 | 6.50 | 2472 | +2.8 |
| 4 | Yankelevich, LevGM | 2451 | GER | +7N | −1B | =6N | =3B | +10N | 3.0 | 12.5 | 14.5 | 7.50 | 2449 | 0.0 |
| 5 | Matthiesen, MartinFM | 2275 | DEN | =6N | +8B | −3N | =10B | +2B | 3.0 | 11.5 | 13.5 | 8.00 | 2461 | +24.6 |
| 6 | Skytte, RasmusIM | 2350 | DEN | =5B | +11N | =4B | −2N | +9B | 3.0 | 11.5 | 13.5 | 7.00 | 2462 | +7.7 |
| 7 | Jalving, AugustFM | 2307 | DEN | −4B | −9N | +12B | =11N | +8B | 2.5 | 9.0 | 9.0 | 3.00 | 2342 | +4.8 |
| 8 | Fries-Nielsen, Jens OveIM | 2284 | DEN | +11B | −5N | +9B | −1B | −7N | 2.0 | 11.5 | 13.5 | 4.00 | 2273 | -0.9 |
| 9 | Ramsdal, Jens AlbertFM | 2333 | DEN | −1N | +7B | −8N | +12B | −6N | 2.0 | 11.5 | 11.5 | 2.50 | 2264 | -5.0 |
| 10 | Kopylov, MichaelIM | 2343 | UKR | −2B | +12N | =11B | =5N | −4B | 2.0 | 11.5 | 11.5 | 2.50 | 2309 | -2.5 |
| 11 | Arndt, MagnusFM | 2358 | GER | −8N | −6B | =10N | =7B | +12N | 2.0 | 9.5 | 9.5 | 2.25 | 2242 | -8.0 |
| 12 | Hoi, CarstenGM | 2285 | DEN | −3N | −10B | −7N | −9N | −11B | 0.0 | 9.5 | 11.5 | 0.00 | 1555 | -20.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Matthiesen, MartinFMDEN+24.63.0 pts · #4
- 2Pajeken, Jakob LeonIMGER+12.04.0 pts · #1
- 3Skytte, RasmusIMDEN+7.73.0 pts · #3
- 1Hoi, CarstenGMDEN-20.20.0 pts · #12
- 2Arndt, MagnusFMGER-8.02.0 pts · #8
- 3Ramsdal, Jens AlbertFMDEN-5.02.0 pts · #9
- R5+260 Elo gap