KNSB FIDE
HP

Herman Poortinga

Rated since February 2023

1367 Classic
1375 Rapid
1375 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
GIESESTEIJN, W. (WILLEM) 1609
12450 Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 3 en 4 · Saturday 1 November 2025
OOSTERHUIS, A. (AREND) 1447
11617 UniClass Science Park Amsterdam Schaaktoernooi Dagvierkampen · Tuesday 8 July 2025
SALM VAN DER, G. (GUILLERMO) 1408
13421 Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 7 · Saturday 7 March 2026
Worst losses
VOS, R. (ROALD) 1458
11617 UniClass Science Park Amsterdam Schaaktoernooi Dagvierkampen · Wednesday 9 July 2025
MEESTERS, M.A. (MARIUS) 1557
13669 Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 8 en 9 · Saturday 11 April 2026
DRAAISMA, G. (GERARD) 1559
11393 Kennemer Open 2024-2025 Kennemer Open 2024-2025 Groep 2 Ronde 9 · Saturday 10 May 2025
KAPTEIN, P.L.W.M. (PETER) 1627
12694 Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 5 · Saturday 13 December 2025
BEEN, K. (KLAAS) 1633
12450 Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 3 en 4 · Saturday 22 November 2025
Tata Steel Chess Tournament 2026 Dagvierkampen Friday 16 January 2026 +0–2=1 +7.2
UniClass Science Park Amsterdam Schaaktoernooi Dagvierkampen Saturday 5 July 2025 +1–1=0 +13.5
Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 8 en 9 Saturday 20 September 2025 +0–1=0 -8.4
Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 7 Saturday 20 September 2025 +1–0=0 +18.4
Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 6 Saturday 20 September 2025 +0–0=1 +9.3
Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 5 Saturday 20 September 2025 +0–1=0 -5.4
Kennemer Open 2025-2026 Kennemer Open 2025-2026 Ronde 3 en 4 Saturday 20 September 2025 +1–1=0 +24.1
Kennemer Open 2024-2025 Kennemer Open 2024-2025 Groep 2 Ronde 9 Saturday 21 September 2024 +0–1=0 -7.0

Rating History

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Peak Ratings

Classic 1375 April 1, 2026
Rapid 1375 May 1, 2026
Blitz 1375 April 1, 2026

Games

Wins 3
Losses 7
Draws 2
Win Rate 25%

Performance by Color

Color Wins Draws Losses Win Rate
White 3 0 4 43%
Black 0 2 3 0%

Recent Matches

Meesters, M.A. (Marius) (1557) Saturday 11 April 2026 LOSS -8.4
Salm van der, G. (Guillermo) (1408) Saturday 7 March 2026 WIN +18.4
Steinhart, M. (Martin) (1573) Saturday 7 February 2026 DRAW +9.3
Roermund van, C. (Carlo) (1506) Wednesday 21 January 2026 DRAW +7.2
Kok, E.W.I. (Eline) Tuesday 20 January 2026 LOSS
Bachler, Frank Monday 19 January 2026 LOSS
Kaptein, P.L.W.M. (Peter) (1627) Saturday 13 December 2025 LOSS -5.4
Been, K. (Klaas) (1633) Saturday 22 November 2025 LOSS -4.7
Giesesteijn, W. (Willem) (1609) Saturday 1 November 2025 WIN +28.8
Vos, R. (Roald) (1458) Wednesday 9 July 2025 LOSS -10.6
Oosterhuis, A. (Arend) (1447) Tuesday 8 July 2025 WIN +24.0
Draaisma, G. (Gerard) (1559) Saturday 10 May 2025 LOSS -7.0