Senioren- en Veteranen Kampioenschap van Nederland 2025
Open SwissStandard
42 players participated in this 7-round tournament, held from 12 Jul 2025 to 18 Jul 2025 in Dieren, Netherlands. 6 titled players from 3 federations. Top 10 Elo average was 2127, and top seed was Anton Van Rijn (🇳🇱 NED, CM, 2219).
Ed Baarslag (🇳🇱 NED, 2025) won with 5.5/7, ahead of Tom Bottema (5.5) and Ton Ellenbroek (5.0). Baarslag won on tie-break after catching the field in the final round.
The biggest upset came in round 2: Jan Knuiman (1979) beat Anton Van Rijn (CM, 2219), a +240-point gap.
Location
🇳🇱Dieren, Netherlands
Dates
12 Jul 2025 → 18 Jul 2025
Time control
Standard: 90min/40moves+30min/end+30sec increment per move starting from move 1
System
Swiss · 7 rounds
Titled players · 6
IM×1
FM×2
CM×3
Federations · 3 represented
🇳🇱Netherlands×40
🇧🇪Belgium×1
🇫🇷France×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsTight race until R5; 2 players tied at 5.5/7, decided on Buchholz. Title race narrowed from 3 co-leaders at R4 to 2 at the finish.
Co-leaders
13
2
6
3
1
1
2
R5–R7 · LEAD HELD
Tom Bottema held the sole lead from R5 through R7 without losing it.
R7 · TIEBREAK CLUSTER
2 players finish on 5.5/7. Baarslag takes the title on Buchholz Cut1 (25.0).
R6 · HEAD-TO-HEAD · WINNER VS 2ND
Tom Bottema drew with Ed Baarslag (Black).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Tom Bottema | * | ½ | ½ | — |
| 2Ed Baarslag | ½ | * | — | ½ |
| 3Ton Ellenbroek | ½ | — | * | — |
| 4Peter Uylings | — | ½ | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Baarslag, Ed | 2025 | NED | +39N | +11B | =18B | +32N | =4N | =2B | +5N | 5.5 | 25.0 | 27.0 | 20.00 | 2294 | +47.4 |
| 2 | Bottema, Tom | 2183 | NED | +21B | =19N | +27B | +34N | +18B | =1N | =3B | 5.5 | 24.0 | 26.5 | 19.50 | 2245 | +9.6 |
| 3 | Ellenbroek, Ton | 1962 | NED | +15B | =10N | =19B | +8N | +9N | =11B | =2N | 5.0 | 26.0 | 29.5 | 21.00 | 2244 | +53.2 |
| 4 | Uylings, Peter | 2050 | NED | =20B | +38N | =10B | +12N | =1B | +14B | =6N | 5.0 | 25.5 | 27.5 | 18.75 | 2211 | +30.8 |
| 5 | Koopman, Hendrik | 2043 | NED | +9B | =27N | −32B | +36N | +19B | +18N | −1B | 4.5 | 22.0 | 24.5 | 15.00 | 2122 | +30.8 |
| 6 | Van Rijn, AntonCM | 2219 | NED | =28N | −33B | +30N | +35B | =20N | +23B | =4B | 4.5 | 20.5 | 23.0 | 14.75 | 2119 | -16.0 |
| 7 | Homs, Guust | 2146 | NED | =26B | =32N | =17B | =27N | +29B | =9N | +19B | 4.5 | 20.5 | 23.0 | 14.75 | 2106 | -6.4 |
| 8 | Van Helvoort, Rob | 2100 | NED | =35N | =28B | +37N | −3B | =33N | +22B | +18B | 4.5 | 20.0 | 22.0 | 13.00 | 2124 | +5.2 |
| 9 | Hummel, Joop | 1974 | NED | −5N | +16B | +13N | +10N | −3B | =7B | =23N | 4.0 | 26.0 | 29.5 | 16.00 | 2116 | +27.6 |
| 10 | Hoogland, DirkCM | 2112 | NED | +30N | =3B | =4N | −9B | =13N | +24B | =14N | 4.0 | 25.5 | 28.5 | 15.50 | 2079 | -6.0 |
| 11 | Mijnheer, Peter | 2118 | NED | +40B | −1N | +36B | =19N | +34B | =3N | F | 4.0 | 23.0 | 25.0 | 11.25 | 2132 | +1.8 |
| 12 | Dijkstra, Matthijs | 2054 | NED | =33N | =35B | +28N | −4B | +16N | +20B | F | 4.0 | 22.0 | 24.5 | 13.00 | 2140 | +13.6 |
| 13 | Van Oosten, Arend | 2075 | NED | +29B | −18N | −9B | +26N | =10B | +32N | =15B | 4.0 | 21.5 | 24.0 | 12.50 | 2087 | +2.6 |
| 14 | Wilgenhof, Otto | 2094 | NED | +37B | =34N | +26B | −18N | +32B | −4N | =10B | 4.0 | 20.5 | 22.5 | 10.75 | 2079 | -2.4 |
| 15 | Boersma, Jan | 2051 | NED | −3N | +42B | =35N | =33B | =22N | +34B | =13N | 4.0 | 20.0 | 21.0 | 9.75 | 2046 | -0.6 |
| 16 | De Vries, Leon | 2045 | NED | −18B | −9N | +39B | +38N | −12B | +35N | +26B | 4.0 | 19.0 | 21.0 | 9.50 | 2057 | +2.4 |
| 17 | Schriemer, Oene | 2021 | NED | F | +39B | =7N | −20B | +37N | =26N | +27B | 4.0 | 18.0 | 18.0 | 10.75 | 2128 | +16.8 |
| 18 | Cornelisse, John | 2139 | NED | +16N | +13B | =1N | +14B | −2N | −5B | −8N | 3.5 | 28.0 | 32.0 | 14.75 | 2081 | -11.2 |
| 19 | Schouten, NicoIM | 2063 | NED | +42N | =2B | =3N | =11B | −5N | +33B | −7N | 3.5 | 26.0 | 27.0 | 10.75 | 2052 | -2.4 |
| 20 | Van Diermen, Arie | 1952 | NED | =4N | F | +21B | +17N | =6B | −12N | =25B | 3.5 | 24.5 | 24.5 | 14.00 | 2120 | +27.4 |
| 21 | Houweling, Bert | 1952 | NED | −2N | =31B | −20N | −24B | +38B | +41N | +34N | 3.5 | 20.0 | 21.5 | 7.50 | 1936 | -3.8 |
| 22 | Schakel, Tim | 2042 | NED | =38B | −36N | =29B | +31N | =15B | −8N | +32B | 3.5 | 19.5 | 21.5 | 10.00 | 1988 | -10.0 |
| 23 | Duchene, Rene | 2078 | NED | =36B | −26N | =38B | +40N | +27B | −6N | =9B | 3.5 | 19.0 | 21.0 | 9.25 | 2018 | -11.2 |
| 24 | Brongers, Henk | 2055 | FRA | −32B | −37N | =42B | +21N | +36B | −10N | +33B | 3.5 | 17.0 | 18.0 | 9.00 | 1985 | -13.4 |
| 25 | Bus, TomCM | 2083 | NED | F | F | +41N | −37B | +40N | +30B | =20N | 3.5 | 12.0 | 12.0 | 8.25 | 2083 | -0.4 |
| 26 | Lootsma, Jan | 2002 | NED | =7N | +23B | −14N | −13B | +41N | =17B | −16N | 3.0 | 24.0 | 25.5 | 9.25 | 1952 | -7.8 |
| 27 | Poelstra, Ben | 1991 | NED | +41N | =5B | −2N | =7B | −23N | +37B | −17N | 3.0 | 24.0 | 25.5 | 8.00 | 1949 | -6.8 |
| 28 | Voogt, Bob | 2056 | NED | =6B | =8N | −12B | −29N | =31B | =36N | +38B | 3.0 | 21.5 | 23.5 | 9.25 | 1975 | -15.6 |
| 29 | Etmans, MaartenFM | 2018 | NED | −13N | =30B | =22N | +28B | −7N | −31B | +37N | 3.0 | 21.0 | 23.0 | 8.25 | 1974 | -9.0 |
| 30 | Jonkman, Fokke | 1995 | NED | −10B | =29N | −6B | +39N | =35B | −25N | +42B | 3.0 | 19.5 | 20.5 | 5.75 | 1997 | -0.8 |
| 31 | Burer, Audry | 1882 | NED | −34B | =21N | =40B | −22B | =28N | +29N | =36B | 3.0 | 18.0 | 20.0 | 8.50 | 1959 | +13.8 |
| 32 | Visser, Gerrit | 1960 | NED | +24N | =7B | +5N | −1B | −14N | −13B | −22N | 2.5 | 26.0 | 29.5 | 10.25 | 1967 | +0.4 |
| 33 | Knuiman, Jan | 1979 | NED | =12B | +6N | −34B | =15N | =8B | −19N | −24N | 2.5 | 24.0 | 26.5 | 10.75 | 1971 | -2.6 |
| 34 | Geboers, Jimmy | 1971 | BEL | +31N | =14B | +33N | −2B | −11N | −15N | −21B | 2.5 | 24.0 | 26.5 | 7.50 | 1935 | -7.8 |
| 35 | Vogel, JaapFM | 2008 | NED | =8B | =12N | =15B | −6N | =30N | −16B | =40N | 2.5 | 24.0 | 26.0 | 8.75 | 1969 | -8.4 |
| 36 | Beukema, Henk Jan | 1989 | NED | =23N | +22B | −11N | −5B | −24N | =28B | =31N | 2.5 | 22.0 | 25.0 | 8.25 | 1937 | -10.6 |
| 37 | Hageman, Ger | 1971 | NED | −14N | +24B | −8B | +25N | −17B | −27N | −29B | 2.0 | 22.5 | 25.5 | 7.00 | 1894 | -14.4 |
| 38 | Massink, Henk | 1917 | NED | =22N | −4B | =23N | −16B | −21N | +39B | −28N | 2.0 | 22.5 | 24.5 | 5.50 | 1867 | -9.4 |
| 39 | Perrenet, Jacob | 1954 | NED | −1B | −17N | −16N | −30B | +42B | −38N | +41B | 2.0 | 20.0 | 21.0 | 2.50 | 1716 | -34.0 |
| 40 | Drent, Sjoerd | 2032 | NED | −11N | =41B | =31N | −23B | −25B | =42N | =35B | 2.0 | 18.0 | 19.0 | 4.00 | 1824 | -32.4 |
| 41 | Elskamp, Dries | 0 | NED | −27B | =40N | −25B | +42N | −26B | −21B | −39N | 1.5 | 17.0 | 18.0 | 2.00 | 1762 | 0.0 |
| 42 | Ten Ham, John | 1933 | NED | −19B | −15N | =24N | −41B | −39N | =40B | −30N | 1.0 | 18.0 | 19.5 | 2.75 | 1752 | -24.6 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Ellenbroek, TonNED+53.25.0 pts · #3
- 2Baarslag, EdNED+47.45.5 pts · #2
- 3Uylings, PeterNED+30.85.0 pts · #4
Top rating losers
- 1Perrenet, JacobNED-34.02.0 pts · #41
- 2Drent, SjoerdNED-32.42.0 pts · #39
- 3Ten Ham, JohnNED-24.61.0 pts · #42
Biggest upsets
- R2+240 Elo gap
- R4+138 Elo gap
- R4+138 Elo gap