KNSB FIDE
WA

Willem Akkerman

Rated since January 2025

1704 Classic
1663 Rapid
1750 Blitz

Team Competition

Current teams
Heerenveen 4
3e klasse B · 2025-2026 · 2 games
Tjonger Aa Linde 3
Klasse 6A · 2025-2026 · 2 games

RIVALRY

Nemesis
Oppenhuizen, W.G. (Wiebe)
Games: 6 · Win rate: 33%
Kryptonite
Bokal, E. (Elmadani)
Games: 5 · Win rate: 0%
Easy Target
Men, Z. (Zihan)
Games: 4 · Win rate: 75%

The good & the bad

Best wins
ABMA, K. (KLAAS) 1881
13689 FK Snelschaak 2026 Groep A · Friday 24 April 2026
KREULEN, R. (ROEL) 1841
13689 FK Snelschaak 2026 Groep A · Friday 24 April 2026
KONING, E. (ERWIN) 1841
13689 FK Snelschaak 2026 Groep A · Friday 24 April 2026
KRAMER, P. (PETER) 1831
13689 FK Snelschaak 2026 Groep A · Friday 24 April 2026
KLINKERS, R.L. (ROELOF) 1768
12172 S.C. Heerenveen interne competitie 01-09-2025 t/m 27-10-2025 (010012) · Monday 15 September 2025
Worst losses
VRIES DE, B. (BART) 1358
11473 FK individueel 2025 Groep A · Tuesday 10 June 2025
DELLEN VAN, B. (BOUDEWIJN) 1451
12993 KNSB competitie 2025-2026 Klasse 6 ronde 6 · Saturday 7 February 2026
SMIDSTRA, D. (DURK) 1475
9961 S.C. Heerenveen interne competitie 02-12-2024 t/m 02-12-2024 (010012) · Monday 2 December 2024
HULA, V. (VIKTORIIA) 1496
9961 S.C. Heerenveen interne competitie 02-12-2024 t/m 02-12-2024 (010012) · Monday 2 December 2024
RUITER DE, W. (WIETZE) 1508
10916 S.C. Heerenveen interne competitie 24-02-2025 t/m 24-03-2025 (010012) · Monday 3 March 2025
Tata Steel Chess Tournament 2026 Weekendvierkampem Friday 16 January 2026 +1–0=2 +7.8
GP Staunton Groningen Groep A Sunday 28 December 2025 +1–1=3 +4.7
FK Snelschaak 2026 Groep A Friday 24 April 2026 +5–6=0 +100.6
S.C. Heerenveen interne competitie 01-12-2025 t/m 01-12-2025 (010012) Monday 1 December 2025 +4–5=2 +12.5
KNSB competitie 2025-2026 Klasse 6 ronde 7 Saturday 20 September 2025 +0–1=0 -13.4
KNSB competitie 2025-2026 Klasse 6 ronde 6 Saturday 20 September 2025 +0–1=0 -30.2
FSB-competitie 2025-2026 ronde 7 3e klasse Monday 1 September 2025 +1–0=0 +14.6
FSB-competitie 2025-2026 ronde 6 3e klasse Monday 1 September 2025 +0–0=1 -2.6
S.C. Heerenveen interne competitie 04-05-2026 t/m 11-05-2026 (010012) Monday 25 August 2025 +0–0=1 +10.2
S.C. Heerenveen interne competitie 02-03-2026 t/m 20-04-2026 (010012) Monday 25 August 2025 +2–1=3 +29.4
S.C. Heerenveen interne competitie 12-01-2026 t/m 23-02-2026 (010012) Monday 25 August 2025 +1–2=4 +29.5
S.C. Heerenveen interne competitie 03-11-2025 t/m 22-12-2025 (010012) Monday 25 August 2025 +0–2=2 +0.7
S.C. Heerenveen interne competitie 01-09-2025 t/m 27-10-2025 (010012) Monday 25 August 2025 +2–1=3 +94.1
S.C. Heerenveen interne competitie 25-08-2025 t/m 25-08-2025 (010012) Monday 25 August 2025 +1–0=0 +33.0
FK individueel 2025 Groep A Wednesday 4 June 2025 +0–7=0 -107.0
FK Snelschaken 2025 Groep A Friday 16 May 2025 +3–6=1 +103.7
S.C. Heerenveen interne competitie 02-12-2024 t/m 02-12-2024 (010012) Sunday 1 December 2024 +3–8=0 -36.3
S.C. Heerenveen interne competitie 12-05-2025 t/m 19-05-2025 (010012) Monday 26 August 2024 +0–1=0 -17.1
S.C. Heerenveen interne competitie 31-03-2025 t/m 28-04-2025 (010012) Monday 26 August 2024 +3–1=0 +59.3
S.C. Heerenveen interne competitie 24-02-2025 t/m 24-03-2025 (010012) Monday 26 August 2024 +0–2=2 -35.5
S.C. Heerenveen interne competitie 06-01-2025 t/m 17-02-2025 (010012) Monday 26 August 2024 +1–2=2 -22.6
S.C. Heerenveen interne competitie 04-11-2024 t/m 16-12-2024 (010012) Monday 26 August 2024 +2–4=0 -22.9
S.C. Heerenveen interne competitie 26-08-2024 t/m 21-10-2024 (010012) Monday 26 August 2024 +1–1=1 +25.1

Rating History

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Peak Ratings

Classic 1704 June 1, 2026
Rapid 1663 June 1, 2026
Blitz 1750 June 1, 2026

Games

Wins 31
Losses 52
Draws 27
Win Rate 28%

Performance by Color

Color Wins Draws Losses Win Rate
White 19 11 27 33%
Black 12 16 25 23%

Recent Matches

Velde, J. (Jan) (1886) Monday 11 May 2026 DRAW +10.2
Klaassen, E. (Erik) (1608) Friday 24 April 2026 WIN +18.2
Koning, P. (Peter) (1873) Friday 24 April 2026 LOSS -8.3
Dekker, J. (Jos) (1836) Friday 24 April 2026 LOSS -9.9
Spek van der, A. (Arthur) (1990) Friday 24 April 2026 LOSS -4.4
Kramer, P. (Peter) (1831) Friday 24 April 2026 WIN +29.9
Siblesz, J.T. (Tjeerd) (1997) Friday 24 April 2026 LOSS -4.2
Kreulen, R. (Roel) (1841) Friday 24 April 2026 WIN +30.4
Viersma, M. (Murk) (1867) Friday 24 April 2026 LOSS -8.5
Koning, E. (Erwin) (1841) Friday 24 April 2026 WIN +30.4
Hibma, J. (Jan) (1971) Friday 24 April 2026 LOSS -4.9
Abma, K. (Klaas) (1881) Friday 24 April 2026 WIN +32.0
Riepma, Z. (Zeeger) (1512) Monday 20 April 2026 WIN +13.1
Goede de, J. (Jelmer) (1542) Tuesday 14 April 2026 WIN +14.6
Bokal, E. (Elmadani) (1653) Monday 13 April 2026 DRAW +0.7
Oppenhuizen, W.G. (Wiebe) (1715) Monday 30 March 2026 WIN +23.5
Snijder, J. (Jan) (1604) Monday 23 March 2026 DRAW -2.6
Dam van, F. (Frans) (1637) Monday 16 March 2026 LOSS -20.8
Popta van, H.D. (Hette) (1837) Monday 9 March 2026 DRAW +9.7
Schoutens, G.E.M. (Gijs) (1773) Saturday 7 March 2026 LOSS -13.4