Bar Blitz KNSB FIDE
WA

Willem Akkerman

Rated since January 2025

1755 Classic
1683 Rapid
1750 Blitz
Willem's accounts
FIDE KNSB
Followers
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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
S.C. Heerenveen interne competitie 24-08-2026 t/m 22-09-2026 (010012) Monday 24 August 2026 +1–0=2 +35.8
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

Team Competition

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

Rating History

Loading KNSB rating history...

Peak Ratings

Classic 1755 Oct. 1, 2026
Rapid 1683 Oct. 1, 2026
Blitz 1750 June 1, 2026

Games

Wins 32
Losses 52
Draws 29
Win Rate 28%

Performance by Color

ColorWinsDrawsLossesWin Rate
White 19 12 27 33%
Black 13 17 25 24%

Recent KNSB Matches

Dekker, J. (Jos) (1824) Tuesday 22 September 2026 DRAW +5.7
Abma, K. (Klaas) (1884) Monday 31 August 2026 DRAW +9.0
Heidinga, F. (Frits) (1734) Monday 24 August 2026 WIN +21.1
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