KNSB FIDE
FH

Frits Heidinga

Rated since January 2023

1734 Classic
1666 Blitz

RIVALRY

Nemesis
Dam van, F. (Frans)
Games: 6 · Win rate: 50%
Kryptonite
Pragt, A. (Arjen)
Games: 6 · Win rate: 0%
Easy Target
Ruiter de, W. (Wietze)
Games: 5 · Win rate: 100%

The good & the bad

Best wins
WIERSMA, T.R. (TJEERD) 1806
9544 FSB-competitie 24-25 FSB-competitie 24-25 ronde 1 2e klasse · Wednesday 2 October 2024
OPPENHUIZEN, W.G. (WIEBE) 1766
9017 S.C. Heerenveen interne competitie 25-03-2024 t/m 13-05-2024 (010012) · Monday 25 March 2024
KLINKERS, R.L. (ROELOF) 1743
11718 S.C. Heerenveen interne competitie 03-11-2025 t/m 22-12-2025 (010012) · Monday 3 November 2025
DERKS, M. (MARK) 1736
8642 S.C. Heerenveen interne competitie 29-01-2024 t/m 18-03-2024 (010012) · Monday 4 March 2024
BOKAL, E. (ELMADANI) 1720
9017 S.C. Heerenveen interne competitie 25-03-2024 t/m 13-05-2024 (010012) · Monday 8 April 2024
Worst losses
RADEMAKERS, R.P. (RONALD) 1412
12691 S.C. Heerenveen interne competitie 01-12-2025 t/m 01-12-2025 (010012) · Monday 1 December 2025
DAM VAN, F. (FRANS) 1476
6824 S.C. Heerenveen interne competitie 30-01-2023 t/m 20-03-2023 (010012) · Monday 20 February 2023
DOETJES, P. (PETER) 1496
6299 S.C. Heerenveen interne competitie 28-11-2022 t/m 19-12-2022 (010012) · Monday 28 November 2022
KOOIJ VAN DER, T.P. (PIETER) 1503
12691 S.C. Heerenveen interne competitie 01-12-2025 t/m 01-12-2025 (010012) · Monday 1 December 2025
RIEPMA, Z. (ZEEGER) 1524
12172 S.C. Heerenveen interne competitie 01-09-2025 t/m 27-10-2025 (010012) · Monday 1 September 2025
No FIDE-rated tournaments found.
FK Snelschaak 2026 Groep A Friday 24 April 2026 +0–2=1 -7.1
S.C. Heerenveen interne competitie 01-12-2025 t/m 01-12-2025 (010012) Monday 1 December 2025 +5–6=0 -62.2
KNSB competitie 2025-2026 Klasse 6 ronde 4 Saturday 20 September 2025 +0–0=1 +0.7
KNSB competitie 2025-2026 Klasse 6 ronde 2 Saturday 20 September 2025 +0–0=1 +2.7
KNSB competitie 2025-2026 Klasse 6 ronde 1 Saturday 20 September 2025 +0–1=0 -12.1
FSB-competitie 2025-2026 ronde 4 2e klasse Monday 1 September 2025 +0–1=0 -11.0
FSB-competitie 2025-2026 ronde 3 2e klasse Monday 1 September 2025 +1–0=0 +11.9
FSB-competitie 2025-2026 Beker ronde 1 Monday 1 September 2025 +0–0=1 +9.4
S.C. Heerenveen interne competitie 12-01-2026 t/m 23-02-2026 (010012) Monday 25 August 2025 +0–0=2 -6.2
S.C. Heerenveen interne competitie 03-11-2025 t/m 22-12-2025 (010012) Monday 25 August 2025 +3–2=0 -5.4
S.C. Heerenveen interne competitie 01-09-2025 t/m 27-10-2025 (010012) Monday 25 August 2025 +3–2=1 -20.3
S.C. Heerenveen interne competitie 25-08-2025 t/m 25-08-2025 (010012) Monday 25 August 2025 +0–1=0 -7.7
S.C. Heerenveen interne competitie 02-12-2024 t/m 02-12-2024 (010012) Sunday 1 December 2024 +5–6=0 -29.8
Waling Dijkstra Weekendtoernooi Groep A Friday 15 November 2024 +2–3=1 -4.7
KNSB competitie 2024-2025 Klasse 6 ronde 7 Saturday 21 September 2024 +1–0=0 +7.1
KNSB competitie 2024-2025 Klasse 6 ronde 6 Saturday 21 September 2024 +0–1=0 -14.2
KNSB competitie 2024-2025 Klasse 6 ronde 5 Saturday 21 September 2024 +1–0=0 +9.3
KNSB competitie 2024-2025 inhaalwedstrijden januari 2025 Saturday 21 September 2024 +0–0=1
KNSB competitie 2024-2025 Klasse 6 ronde 4 Saturday 21 September 2024 +0–1=0
KNSB competitie 2024-2025 Klasse 6 ronde 3 Saturday 21 September 2024 +0–0=1 -1.7
KNSB competitie 2024-2025 Klasse 6 ronde 1 Saturday 21 September 2024 +1–0=0
FSB-competitie 24-25 ronde 6 2e klasse Sunday 1 September 2024 +1–0=0 +9.1
FSB-competitie 24-25 ronde 5 2e klasse Sunday 1 September 2024 +1–0=0 +9.3
FSB-competitie 24-25 ronde 4 2e klasse Sunday 1 September 2024 +1–0=0 +9.3
FSB-competitie 24-25 ronde 3 2e klasse Sunday 1 September 2024 +0–0=1 -1.2
FSB-competitie 24-25 FSB-beker 24-25 ronde 1. Sunday 1 September 2024 +0–1=0 -6.1
FSB-competitie 24-25 FSB-competitie 24-25 ronde 2 2e klasse Sunday 1 September 2024 +0–0=1 -0.5
FSB-competitie 24-25 FSB-competitie 24-25 ronde 1 2e klasse Sunday 1 September 2024 +1–0=0 +13.6
S.C. Heerenveen interne competitie 12-05-2025 t/m 19-05-2025 (010012) Monday 26 August 2024 +0–2=0 -11.7
S.C. Heerenveen interne competitie 31-03-2025 t/m 28-04-2025 (010012) Monday 26 August 2024 +0–0=1 -1.9
S.C. Heerenveen interne competitie 24-02-2025 t/m 24-03-2025 (010012) Monday 26 August 2024 +2–1=1 -6.3
S.C. Heerenveen interne competitie 06-01-2025 t/m 17-02-2025 (010012) Monday 26 August 2024 +4–1=0 +11.5
S.C. Heerenveen interne competitie 04-11-2024 t/m 16-12-2024 (010012) Monday 26 August 2024 +2–1=2 -12.7
S.C. Heerenveen interne competitie 26-08-2024 t/m 21-10-2024 (010012) Monday 26 August 2024 +2–2=1 -12.5
FSB-competitie 23-24 3e klasse ronde 1 Friday 1 September 2023 +0–0=1 -2.9
S.C. Heerenveen interne competitie 25-03-2024 t/m 13-05-2024 (010012) Monday 21 August 2023 +3–0=0 +27.2
S.C. Heerenveen interne competitie 29-01-2024 t/m 18-03-2024 (010012) Monday 21 August 2023 +2–5=1 -28.2
S.C. Heerenveen interne competitie 08-01-2024 t/m 22-01-2024 (010012) Monday 21 August 2023 +1–1=1 +7.6
S.C. Heerenveen interne competitie 28-08-2023 t/m 20-11-2023 (010012) Monday 21 August 2023 +5–1=0 +25.9
FSB competitie 22-23 ronde 7 Saturday 1 October 2022 +0–0=1 -7.9
FSB competitie 22-23 ronde 6 Saturday 1 October 2022 +0–0=1 -6.2
FSB competitie 22-23 ronde 5 Saturday 1 October 2022 +1–0=0 +6.9
FSB competitie 22-23 ronde 4 Saturday 1 October 2022 +0–1=0 -8.0
KNSB competitie 2022-2023 Klasse 5 ronde 3 Saturday 17 September 2022 +1–0=0 +14.1
S.C. Heerenveen interne competitie 27-03-2023 t/m 15-05-2023 (010012) Sunday 28 August 2022 +1–2=0 -10.8
S.C. Heerenveen interne competitie 30-01-2023 t/m 20-03-2023 (010012) Sunday 28 August 2022 +2–4=0 -13.1
S.C. Heerenveen interne competitie 02-01-2023 t/m 23-01-2023 (010012) Sunday 28 August 2022 +3–1=0 +27.8
S.C. Heerenveen interne competitie 28-11-2022 t/m 19-12-2022 (010012) Sunday 28 August 2022 +0–1=0 -15.5

Rating History

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Peak Ratings

Classic 1784 May 1, 2025
Rapid 1734 March 1, 2026
Blitz 1735 Jan. 1, 2025

Games

Wins 55
Losses 50
Draws 22
Win Rate 43%

Performance by Color

Color Wins Draws Losses Win Rate
White 29 11 24 45%
Black 26 11 26 41%

Recent Matches

Fabriek, T.E. (Edwin) (1775) Friday 24 April 2026 LOSS -9.0
Zijlstra, J. (Jasper) (1905) Friday 24 April 2026 DRAW +7.3
Meirink, J. (Johan) (1900) Friday 24 April 2026 LOSS -5.3
Oppenhuizen, W.G. (Wiebe) (1709) Monday 19 January 2026 DRAW -1.1
Klaassen, E. (Erik) (1587) Monday 12 January 2026 DRAW -5.1
Vaart van der, T. (Twan) Monday 22 December 2025 WIN
Draijer, C. (Chris) (1786) Friday 19 December 2025 LOSS -11.0
Ridder de, H.P.L. (Henk) (1764) Saturday 13 December 2025 DRAW +0.7
Bokal, E. (Elmadani) (1650) Monday 8 December 2025 LOSS -15.7
Men, Z. (Zihan) (1330) Monday 1 December 2025 WIN +2.0
Kooij van der, T.P. (Pieter) (1503) Monday 1 December 2025 LOSS -19.8
Dam van, F. (Frans) (1689) Monday 1 December 2025 LOSS -14.1
Derks, M. (Mark) (1703) Monday 1 December 2025 LOSS -13.6
Akkerman, W. (Willem) (1608) Monday 1 December 2025 WIN +8.2
Vaart van der, T. (Twan) (1483) Monday 1 December 2025 WIN +4.7
Smidstra, D. (Durk) (1432) Monday 1 December 2025 WIN +3.6
Rademakers, R.P. (Ronald) (1412) Monday 1 December 2025 LOSS -21.8
Klaassen, W. (Wisse) (1722) Monday 1 December 2025 LOSS -13.0
Pragt, A. (Arjen) (2032) Monday 1 December 2025 LOSS -3.7
Westerink, H. (Henk) (1507) Monday 1 December 2025 WIN +5.3