Chessfestival Groningen 2025 Compact B
Open SwissStandard
31 players participated in this 5-round tournament, held from 26 Dec 2025 to 30 Dec 2025 in Groningen, Netherlands. 1 titled players from 2 federations. Top 10 Elo average was 1875, and top seed was Henk Happel (🇳🇱 NED, FM, 1938).
Aldert-Jan Grashuis (🇳🇱 NED, 1875) won with 4.0/5, ahead of Carlijn Hagen (3.5) and Tije Baars (3.5). Grashuis won solo starting round 4.
The biggest upset came in round 2: Niranjana Ganeshram (1706) beat Yannick Timar (1889), a +183-point gap.
Location
🇳🇱Groningen, Netherlands
Dates
26 Dec 2025 → 30 Dec 2025
Time control
Standard: 90min/40moves+30min/end+30sec increment per move starting from move 1
System
Swiss · 5 rounds
Titled players · 1
FM×1
Federations · 2 represented
🇳🇱Netherlands×30
🇨🇿Czech Republic×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsAldert-Jan Grashuis led from R4; +0.5-point edge over the runner-up.
Co-leaders
10
3
3
1
1
R4–R5 · LEAD HELD
Aldert-Jan Grashuis held the sole lead from R4 through R5 without losing it.
R1–R5 · UNBEATEN
Aldert-Jan Grashuis went unbeaten across 5 games (R1–R5).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Aldert-Jan Grashuis | * | — | ½ | — |
| 2Evan Boterman | — | * | — | — |
| 3Carlijn Hagen | ½ | — | * | — |
| 4Tije Baars | — | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Grashuis, Aldert-Jan | 1875 | NED | +10B | +19N | =2B | +13N | =12B | 4.0 | 12.0 | 14.0 | 10.75 | 2033 | +19.0 |
| 2 | Hagen, Carlijn | 1825 | NED | +27N | +7B | =1N | =11B | =6N | 3.5 | 13.5 | 14.5 | 9.25 | 1994 | +45.2 |
| 3 | Baars, Tije | 1857 | NED | +4N | −18B | +15N | +17B | =11N | 3.5 | 11.0 | 13.0 | 9.50 | 1937 | +10.6 |
| 4 | El Khaddari, Lina | 1797 | NED | −3B | +23N | =14B | +21N | +13B | 3.5 | 10.0 | 11.5 | 6.75 | 1959 | +21.8 |
| 5 | Boterman, Evan | 1812 | NED | =20B | +21N | =17B | =8N | +14B | 3.5 | 9.5 | 11.0 | 7.50 | 1979 | +44.4 |
| 6 | Ganeshram, Niranjana | 1706 | NED | =29B | +30N | =8B | +26N | =2B | 3.5 | 8.5 | 8.5 | 5.00 | 2006 | +79.6 |
| 7 | Knight, David | 1864 | NED | +15B | −2N | +10B | +9N | −8B | 3.0 | 12.5 | 15.0 | 8.50 | 1882 | +3.0 |
| 8 | Groot, Simon | 1933 | NED | F | +16B | =6N | =5B | +7N | 3.0 | 12.5 | 12.5 | 9.00 | 1999 | +6.6 |
| 9 | Kremer, Kaj | 1765 | NED | +24N | =13B | =12N | −7B | +17N | 3.0 | 10.5 | 12.0 | 6.25 | 1851 | +24.4 |
| 10 | Spaans, Leo | 1847 | NED | −1N | +27B | −7N | +19B | +22N | 3.0 | 10.5 | 11.5 | 4.50 | 1931 | +11.4 |
| 11 | Van Wamel, Gijs | 1841 | NED | F | +25B | +18N | =2N | =3B | 3.0 | 10.5 | 10.5 | 7.00 | 2030 | +38.8 |
| 12 | Oskam, Dejen | 1843 | NED | F | +29N | =9B | +18B | =1N | 3.0 | 9.5 | 9.5 | 6.00 | 2015 | +35.2 |
| 13 | Hagen, Maurits | 1659 | NED | +31B | =9N | +22N | −1B | −4N | 2.5 | 12.0 | 12.0 | 3.00 | 1795 | +36.4 |
| 14 | Bloemsma, Wesley | 1842 | NED | −17N | +28B | =4N | +22B | −5N | 2.5 | 10.5 | 11.5 | 4.25 | 1804 | -5.4 |
| 15 | Rooijakkers, Liam | 1682 | NED | −7N | +24B | −3B | =23N | +21B | 2.5 | 9.5 | 11.0 | 3.75 | 1829 | +39.2 |
| 16 | Kunnen, Ruurd | 1843 | NED | =21B | −8N | +29B | =20N | =24B | 2.5 | 8.0 | 8.5 | 3.00 | 1814 | -4.0 |
| 17 | Rutten, David | 1794 | NED | +14B | =22B | =5N | −3N | −9B | 2.0 | 12.5 | 14.0 | 5.00 | 1748 | -6.2 |
| 18 | Sterba, Michal | 1823 | CZE | +30B | +3N | −11B | −12N | F | 2.0 | 11.5 | 11.5 | 3.50 | 1858 | +4.0 |
| 19 | Dijkstra, Theo | 1790 | NED | +23B | −1B | −26N | −10N | +29B | 2.0 | 10.0 | 10.5 | 2.00 | 1772 | -2.4 |
| 20 | De Wit, Jim | 1749 | NED | =5N | =26B | =25N | =16B | F | 2.0 | 9.5 | 11.0 | 4.50 | 1827 | +17.2 |
| 21 | Plug, Arjan | 1831 | NED | =16N | −5B | +27N | −4B | −15N | 1.5 | 12.0 | 13.0 | 2.25 | 1666 | -22.2 |
| 22 | Van der Meer, Henk | 1826 | NED | +28B | =17N | −13B | −14N | −10B | 1.5 | 10.0 | 11.0 | 2.00 | 1637 | -25.2 |
| 23 | Van der Molen, Jarich | 1862 | NED | −19N | −4B | +28N | =15B | −25N | 1.5 | 9.5 | 10.5 | 2.25 | 1631 | -62.4 |
| 24 | Maes, Zayd | 1733 | NED | −9B | −15N | F | +25B | =16N | 1.5 | 9.5 | 9.5 | 2.75 | 1696 | -4.6 |
| 25 | Bruinsma, Jura | 1843 | NED | F | −11N | =20B | −24N | +23B | 1.5 | 8.0 | 8.0 | 2.50 | 1709 | -15.0 |
| 26 | Pouw, Marcel | 1809 | NED | F | =20N | +19B | −6B | F | 1.5 | 7.5 | 7.5 | 3.00 | 1748 | -5.0 |
| 27 | Happel, HenkFM | 1938 | NED | −2B | −10N | −21B | +29N | −28N | 1.0 | 9.0 | 9.5 | 0.50 | 1583 | -22.7 |
| 28 | Reintke, Erwin | 1788 | NED | −22N | −14N | −23B | F | +27B | 1.0 | 6.5 | 6.5 | 1.00 | 1674 | -11.4 |
| 29 | Alberts, Peter | 1826 | NED | =6N | −12B | −16N | −27B | −19N | 0.5 | 11.0 | 12.0 | 1.75 | 1458 | -80.8 |
| 30 | Timar, Yannick | 1889 | NED | −18N | −6B | F | F | F | 0.0 | 5.5 | 5.5 | 0.00 | 965 | -26.6 |
| 31 | Kroezen, Roland | 1713 | NED | −13N | F | F | F | F | 0.0 | 2.5 | 2.5 | 0.00 | 859 | -11.6 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Ganeshram, NiranjanaNED+79.63.5 pts · #6
- 2Hagen, CarlijnNED+45.23.5 pts · #3
- 3Boterman, EvanNED+44.43.5 pts · #2
Top rating losers
- 1Alberts, PeterNED-80.80.5 pts · #29
- 2Van der Molen, JarichNED-62.41.5 pts · #25
- 3Timar, YannickNED-26.60.0 pts · #30
Biggest upsets
- R2+183 Elo gap
- R3+167 Elo gap
- R5+150 Elo gap