Dutch Open 2025 - Reserve B
Open SwissStandard
29 players participated in this 9-round tournament, held from 22 Jul 2025 to 30 Jul 2025 in Dieren, Netherlands. 4 federations represented. Top 10 Elo average was 1831, and top seed was Jan Barteling (🇳🇱 NED, 1891).
Joey Weerts (🇳🇱 NED, 1763) won with 7.0/9, ahead of Lukas Blok (7.0) and Malem Ngangbam (6.0). Weerts shared the lead from round 6, winning on tie-break.
The biggest upset came in round 2: Malem Ngangbam (1562) beat Jan Barteling (1891), a +329-point gap.
Location
🇳🇱Dieren, Netherlands
Dates
22 Jul 2025 → 30 Jul 2025
Time control
Standard: 90min/40moves+30min/end+30sec increment per move starting from move 1
System
Swiss · 9 rounds
Federations · 4 represented
🇳🇱Netherlands×24
🇩🇪Germany×3
🇺🇦Ukraine×1
🇬🇧England×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsTight race until R7; 2 players tied at 7.0/9, decided on Buchholz.
Co-leaders
12
5
1
1
1
2
1
1
2
R7 · LEADER CHANGE28 Jul
Joey Weerts takes the sole lead (6.0/7).
R9 · TIEBREAK CLUSTER
2 players finish on 7.0/9. Weerts takes the title on Buchholz Cut1 (43.5).
R5 · HEAD-TO-HEAD · WINNER VS 2ND
Joey Weerts beat Lukas Blok (White).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Joey Weerts | * | 1 | 1 | ½ |
| 2Lukas Blok | 0 | * | ½ | — |
| 3Malem Ngangbam | 0 | ½ | * | ½ |
| 4Jim De Wit | ½ | — | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Weerts, Joey | 1763 | NED | +14B | =19N | +27B | =8N | +2B | +6B | +3N | =5N | =7B | 7.0 | 43.5 | 45.5 | 35.25 | 1943 | +80.0 |
| 2 | Blok, Lukas | 1716 | NED | +17N | +18B | =8N | =3B | −1N | +14B | +16N | +4B | +6N | 7.0 | 43.0 | 47.5 | 35.00 | 1983 | +123.2 |
| 3 | Ngangbam, Malem | 1562 | NED | +11B | +24N | +9B | =2N | +13B | −4N | −1B | +12N | =5B | 6.0 | 45.0 | 47.5 | 28.00 | 1900 | +156.0 |
| 4 | Viering, Wim | 1885 | NED | =9B | +20N | +19B | =13N | +8B | +3B | −5N | −2N | +12B | 6.0 | 42.0 | 46.0 | 28.25 | 1848 | -13.6 |
| 5 | De Wit, Jim | 1669 | NED | −16N | =25B | +21N | +9B | =10N | +13N | +4B | =1B | =3N | 6.0 | 41.5 | 44.0 | 29.25 | 1870 | +96.8 |
| 6 | Jorritsma, Eli Alia | 1708 | NED | −18N | +28B | +23B | +24N | +12B | −1N | +15B | =7N | −2B | 5.5 | 38.5 | 40.5 | 19.25 | 1863 | +76.8 |
| 7 | Bacaksiz, Bilal | 1728 | GER | −15B | −27N | +26B | +23N | =24B | +9N | +19B | =6B | =1N | 5.5 | 34.0 | 36.0 | 22.00 | 1870 | +35.2 |
| 8 | Poldermans, Daan | 1744 | NED | +22N | +15N | =2B | =1B | −4N | =12N | =21B | =13N | =10B | 5.0 | 42.0 | 45.5 | 23.75 | 1815 | +16.8 |
| 9 | Van Der Veen, Ailko | 1770 | ENG | =4N | +21B | −3N | −5N | +23B | −7B | =17N | +29B | +16N | 5.0 | 39.0 | 41.0 | 18.25 | 1782 | +2.6 |
| 10 | Schutte, Filip | 1773 | NED | −19B | =14N | =20B | +28N | =5B | +24N | −12B | +15N | =8N | 5.0 | 35.0 | 37.0 | 18.75 | 1805 | +7.6 |
| 11 | Van Dijk, Youp | 1719 | NED | −3N | +22B | −12B | +27N | −15B | −21N | +25B | +24N | +19B | 5.0 | 31.0 | 33.0 | 14.50 | 1810 | +43.2 |
| 12 | Van Vlokhoven, Franka | 1806 | NED | +29N | −13B | +11N | +16B | −6N | =8B | +10N | −3B | −4N | 4.5 | 41.5 | 43.5 | 19.00 | 1739 | -32.4 |
| 13 | Geisser, Oliver | 1758 | GER | +27B | +12N | =16N | =4B | −3N | −5B | =14N | =8B | =17N | 4.5 | 41.0 | 43.0 | 18.75 | 1755 | -0.4 |
| 14 | De Vries, Laurens | 1728 | NED | −1N | =10B | +25N | =15N | +20B | −2N | =13B | −17B | +21N | 4.5 | 40.0 | 42.5 | 17.00 | 1747 | +9.2 |
| 15 | Greven, Ron | 1827 | NED | +7N | −8B | =17N | =14B | +11N | +16B | −6N | −10B | =18N | 4.5 | 39.5 | 44.0 | 21.75 | 1764 | -15.8 |
| 16 | Beerdsen, Marco | 1772 | NED | +5B | +23N | =13B | −12N | +19B | −15N | −2B | +21N | −9B | 4.5 | 39.0 | 42.0 | 18.75 | 1763 | -4.0 |
| 17 | Kuhn, Wolfgang | 1857 | GER | −2B | +26N | =15B | −19N | =21B | =20N | =9B | +14N | =13B | 4.5 | 37.0 | 39.5 | 17.75 | 1745 | -52.8 |
| 18 | Wazzan, Amr | 1850 | NED | +6B | −2N | −24B | −20N | +25B | −19N | +27B | +26N | =15B | 4.5 | 32.5 | 34.5 | 14.75 | 1764 | -40.4 |
| 19 | Rudman, Lev | 1883 | UKR | +10N | =1B | −4N | +17B | −16N | +18B | −7N | =20B | −11N | 4.0 | 42.0 | 46.0 | 19.50 | 1729 | -72.8 |
| 20 | Aravindhan, Aadvik | 1602 | NED | =21N | −4B | =10N | +18B | −14N | =17B | +24B | =19N | −22N | 4.0 | 35.5 | 38.0 | 15.50 | 1766 | +69.5 |
| 21 | Teunisse, Rob | 1682 | NED | =20B | −9N | −5B | +29N | =17N | +11B | =8N | −16B | −14B | 3.5 | 38.5 | 40.5 | 13.75 | 1653 | -15.6 |
| 22 | De Jong, Lucas | 1736 | NED | −8B | −11N | =29B | =25N | =28B | −23N | F | +27N | +20B | 3.5 | 25.5 | 25.5 | 9.25 | 1680 | -12.8 |
| 23 | Verhaaren, Albert | 1760 | NED | +25N | −16B | −6N | −7B | −9N | +22B | −26N | F | +29B | 3.0 | 31.0 | 31.0 | 8.00 | 1654 | -48.0 |
| 24 | Barteling, Jan | 1891 | NED | +28N | −3B | +18N | −6B | =7N | −10B | −20N | −11B | F | 2.5 | 37.5 | 37.5 | 9.25 | 1565 | -67.4 |
| 25 | Marres, Onno | 1744 | NED | −23B | =5N | −14B | =22B | −18N | F | −11N | +28B | =26B | 2.5 | 31.0 | 31.0 | 8.00 | 1597 | -62.4 |
| 26 | Stapersma, Dick | 1736 | NED | F | −17B | −7N | F | =27B | =28N | +23B | −18B | =25N | 2.5 | 24.0 | 24.0 | 6.25 | 1672 | -12.8 |
| 27 | Landsheer, Jos | 1769 | NED | −13N | +7B | −1N | −11B | =26N | =29B | −18N | −22B | −28N | 2.0 | 34.5 | 36.5 | 7.75 | 1528 | -111.6 |
| 28 | Van Delft, Karel | 1709 | NED | −24B | −6N | F | −10B | =22N | =26B | −29N | −25N | +27B | 2.0 | 25.5 | 25.5 | 5.00 | 1569 | -28.4 |
| 29 | Pruijssers, Henk | 1734 | NED | −12B | F | =22N | −21B | F | =27N | +28B | −9N | −23N | 2.0 | 23.5 | 23.5 | 4.75 | 1590 | -27.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Ngangbam, MalemNED+156.06.0 pts · #3
- 2Blok, LukasNED+123.27.0 pts · #2
- 3De Wit, JimNED+96.86.0 pts · #4
Top rating losers
- 1Landsheer, JosNED-111.62.0 pts · #28
- 2Rudman, LevUKR-72.84.0 pts · #20
- 3Barteling, JanNED-67.42.5 pts · #25
Biggest upsets
- R2+329 Elo gap
- R7+289 Elo gap
- R4+248 Elo gap