KNSB FIDE
HJ

Harm Jonker

Rated since January 2023

1678 Classic
1693 Rapid
1693 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
THIEL VAN, J.W. (JAN WILLEM) 1678
13421 Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 7 · Saturday 7 March 2026
FRITSCHY, R. (RICHARD) 1648
12694 Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 5 · Saturday 13 December 2025
MEESTERS, M.A. (MARIUS) 1569
12450 Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 3 en 4 · Saturday 22 November 2025
POST, H. (HENK) 1532
14374 Kennemer Open 2026-2027 Kennemer Open 2026-2027 Ronde 1 · Saturday 19 September 2026
VOS, R. (ROALD) 1446
11889 Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 1 · Saturday 20 September 2025
Worst losses
HUSON, H. (HANS) 1673
12450 Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 3 en 4 · Saturday 1 November 2025
ROTTE, J.G. (JAAP) 1699
13669 Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 8 en 9 · Saturday 28 March 2026
LIPKA, J.F.H. (JO) 1726
13669 Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 8 en 9 · Saturday 11 April 2026
No FIDE-rated tournaments found.
Kennemer Open 2026-2027 Kennemer Open 2026-2027 Ronde 1 Saturday 19 September 2026 +1–0=0 +7.9
Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 8 en 9 Saturday 20 September 2025 +0–2=0 -23.2
Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 7 Saturday 20 September 2025 +1–0=0 +12.4
Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 5 Saturday 20 September 2025 +1–0=0 +11.8
Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 3 en 4 Saturday 20 September 2025 +1–1=0 -3.5
Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 1 Saturday 20 September 2025 +1–0=0 +5.5

Rating History

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Peak Ratings

Classic 1711 Jan. 1, 2025
Rapid 1693 May 1, 2026
Blitz 1693 April 1, 2026

Games

Wins 5
Losses 3
Draws 0
Win Rate 62%

Performance by Color

Color Wins Draws Losses Win Rate
White 3 0 2 60%
Black 2 0 1 67%

Recent Matches

Post, H. (Henk) (1532) Saturday 19 September 2026 WIN +7.9
Lipka, J.F.H. (Jo) (1726) Saturday 11 April 2026 LOSS -11.4
Rotte, J.G. (Jaap) (1699) Saturday 28 March 2026 LOSS -11.9
Thiel van, J.W. (Jan Willem) (1678) Saturday 7 March 2026 WIN +12.4
Fritschy, R. (Richard) (1648) Saturday 13 December 2025 WIN +11.8
Meesters, M.A. (Marius) (1569) Saturday 22 November 2025 WIN +9.0
Huson, H. (Hans) (1673) Saturday 1 November 2025 LOSS -12.5
Vos, R. (Roald) (1446) Saturday 20 September 2025 WIN +5.5