KNSB FIDE
WA

Willem Akkerman

Rated since January 2025

1640 Classic
1653 Rapid
1640 Blitz

RIVALRY

Nemesis
Klinkers, R.L. (Roelof)
Games: 3 · Win rate: 33%
Kryptonite
Bokal, E. (Elmadani)
Games: 4 · Win rate: 0%
Easy Target
Men, Z. (Zihan)
Games: 4 · Win rate: 75%

The good & the bad

Best wins
KLINKERS, R.L. (ROELOF) 1768
12172 S.C. Heerenveen interne competitie 01-09-2025 t/m 27-10-2025 (010012) · Monday 15 September 2025
WILDE DE, A. (RENÉ) 1722
12172 S.C. Heerenveen interne competitie 01-09-2025 t/m 27-10-2025 (010012) · Monday 13 October 2025
DOETJES, P. (PETER) 1710
11761 S.C. Heerenveen interne competitie 25-08-2025 t/m 25-08-2025 (010012) · Monday 25 August 2025
LAPKA, P. (PAWEL) 1709
11398 FK Snelschaken 2025 Groep A · Friday 16 May 2025
OPPENHUIZEN, W.G. (WIEBE) 1669
12691 S.C. Heerenveen interne competitie 01-12-2025 t/m 01-12-2025 (010012) · Monday 1 December 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
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 6 3e klasse Monday 1 September 2025 +0–0=1 -2.6
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 1651 March 1, 2026
Rapid 1653 April 1, 2026
Blitz 1640 April 1, 2026

Games

Wins 23
Losses 45
Draws 23
Win Rate 25%

Performance by Color

Color Wins Draws Losses Win Rate
White 13 10 25 27%
Black 10 13 20 23%

Recent Matches

Snijder, J. (Jan) (1604) Monday 23 March 2026 DRAW -2.6
Schoutens, G.E.M. (Gijs) (1773) Saturday 7 March 2026 LOSS -13.4
Doetjes, P. (Peter) (1667) Monday 23 February 2026 WIN +21.1
Bavel van, F. (Ferdi) (2021) Monday 16 February 2026 LOSS -3.8
Wilde de, A. (René) (1758) Monday 9 February 2026 LOSS -14.0
Dellen van, B. (Boudewijn) (1451) Saturday 7 February 2026 LOSS -30.2
Lapka, P. (Pawel) (1758) Monday 2 February 2026 DRAW +6.1
Abma, K. (Klaas) (1885) Monday 26 January 2026 DRAW +12.4
Derks, M. (Mark) (1706) Monday 19 January 2026 DRAW +4.0
Hoogerwaard, S. (Samantha) (1599) Sunday 18 January 2026 DRAW -2.0
Goldewijk, S. (Sander) (1554) Saturday 17 January 2026 WIN +15.6
Vissers, H.P.J. (Henk) (1527) Friday 16 January 2026 DRAW -5.8
Klaassen, W. (Wisse) (1700) Monday 12 January 2026 DRAW +3.7
Pijper, J. (Jesse) (1632) Sunday 28 December 2025 DRAW +0.2
Boomhouwer, R. (Rens) (1633) Sunday 28 December 2025 WIN +20.3
Noback, J. (Jorrit) (1571) Sunday 28 December 2025 DRAW -3.2
Odo Sarkar Cuadrado (1771) Sunday 28 December 2025 LOSS -12.3
Mulder, S. (Sven) (1622) Sunday 28 December 2025 DRAW -0.3
Oppenhuizen, W.G. (Wiebe) (1670) Monday 22 December 2025 DRAW +2.3
Griendt van de, W.B. (Wouter) (1969) Monday 15 December 2025 LOSS -4.7