KNSB FIDE
CK

Casper de Koning

Rated since March 2026

1617 Classic

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
BERNECKER, N. (NIELS) 1862
11788 KC Rapid Rush Groep A · Friday 21 November 2025
BENTUM VAN, A.J. (GUUS) 1723
11788 KC Rapid Rush Groep A · Friday 14 November 2025
SLUIS VAN DER, J.M.H. (JAN) 1713
13228 NHSB-competitie 2025-2026 Klasse 2D t/m 08-03-2026 · Friday 6 March 2026
JETHVA, V. (VIVAAN) 1655
10471 Tata Steel Chess Tournament 2026 Weekendvierkampem · Sunday 18 January 2026
CLARK, L.A. (LIAM) 1553
12731 Haarlem Open Groep A · Thursday 16 April 2026
Worst losses
NEELAKANTAN, D.N. (DAKSHESH NATHAN) 1580
12731 Haarlem Open Groep A · Tuesday 7 April 2026
GREVEN, S. (STEFAN) 1595
11788 KC Rapid Rush Groep A · Friday 28 November 2025
TARIGONDA, S.T. (SEYAN) 1629
11788 KC Rapid Rush Groep A · Friday 21 November 2025
BREURKES, R. (RICHARD) 1804
12731 Haarlem Open Groep A · Wednesday 1 April 2026
HADAR, C. (CSABA) 1815
12576 NHSB-competitie 2025-2026 Klasse 2D t/m 14-12-2025 · Friday 12 December 2025
Tata Steel Chess Tournament 2026 Weekendvierkampem Friday 16 January 2026 +2–0=1 +27.9
Haarlem Open Groep A Friday 6 March 2026 +1–3=0 -8.8
Haarlem Open Groep A Friday 6 March 2026 +1–0=1 +14.2
KC Rapid Rush Groep A Friday 7 November 2025 +4–5=3 +6.3
NHSB-competitie 2025-2026 Klasse 2D t/m 08-03-2026 Monday 1 September 2025 +1–0=0 +16.5
NHSB-competitie 2025-2026 Viertallen D t/m 22-02-2026 Monday 1 September 2025 +0–0=1 -2.8
NHSB-competitie 2025-2026 Klasse 2D t/m 08-02-2026 Monday 1 September 2025 +0–1=0 -2.4
NHSB-competitie 2025-2026 Klasse 2D t/m 14-12-2025 Monday 1 September 2025 +0–1=0 -5.2
NHSB-competitie 2025-2026 Klasse 2D t/m 28-11-2025 Monday 1 September 2025 +0–1=0 -4.8
NHSB-competitie 2025-2026 Klasse 2D t/m 02-11-2025 Monday 1 September 2025 +0–0=1 +5.4

Rating History

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Peak Ratings

Classic 1626 April 1, 2026
Rapid 1654 March 1, 2026
Blitz 1626 April 1, 2026

Games

Wins 9
Losses 11
Draws 7
Win Rate 33%

Performance by Color

Color Wins Draws Losses Win Rate
White 6 4 5 40%
Black 3 3 6 25%

Recent Matches

Clark, L.A. (Liam) (1553) Thursday 16 April 2026 WIN +10.0
Neelakantan, D.N. (Dakshesh Nathan) (1580) Tuesday 7 April 2026 LOSS -7.1
Breurkes, R. (Richard) (1804) Wednesday 1 April 2026 LOSS -6.7
Dekker, A. (Albert) (1835) Wednesday 25 March 2026 LOSS -5.0
Schulenberg, R. (René) (1851) Wednesday 18 March 2026 DRAW +7.9
Oosterhuis, A. (Arend) (1405) Tuesday 10 March 2026 WIN +6.3
Sluis van der, J.M.H. (Jan) (1713) Friday 6 March 2026 WIN +16.5
Zeeman, B. (Beatrice) (1519) Friday 20 February 2026 DRAW -2.8
Kuijpers, B. (Björn) (1847) Tuesday 3 February 2026 LOSS -2.4
Jethva, V. (Vivaan) (1655) Sunday 18 January 2026 WIN +15.6
Delorenzi, J.H.D. (Joey) (1585) Saturday 17 January 2026 DRAW +0.5
Tadrous, G. (George) (1546) Friday 16 January 2026 WIN +11.8
Hadar, C. (Csaba) (1815) Friday 12 December 2025 LOSS -5.2
Greven, S. (Stefan) (1595) Friday 28 November 2025 LOSS -16.9
Sala, F. (Frank) (1568) Friday 28 November 2025 DRAW -3.2
Balm, R. (Robert) (1707) Friday 28 November 2025 DRAW +2.4
Oosterveer, S. (Sam) (1833) Monday 24 November 2025 LOSS -4.8
Tarigonda, S.T. (Seyan) (1629) Friday 21 November 2025 LOSS -7.7
Bernecker, N. (Niels) (1862) Friday 21 November 2025 WIN +22.7
Muskens, M.A. (Mink) (1901) Friday 21 November 2025 LOSS -5.5