SY

Sietze Ykema

Rated since January 2023

1691 Classic
1693 Rapid
1693 Blitz

RIVALRY

Nemesis
Kranenburg, K. (Kees)
Games: 5 · Win rate: 40%
Kryptonite
Leerentveld, J.G. (John)
Games: 4 · Win rate: 0%

The good & the bad

Best wins
KRANENBURG, K. (KEES) 1695
12122 H.S.C.-Stork interne competitie 11-09-2025 t/m 23-10-2025 (030039) · Thursday 18 September 2025
ROBERS, F.G.J. (FREDRIK) 1658
12318 SBO Viertallencompetitie 2025/2026 Ronde 1 (B-G) · Monday 27 October 2025
WANNINGEN, N. (NICK) 1646
13439 H.S.C.-Stork interne competitie 29-01-2026 t/m 26-03-2026 (030039) · Thursday 12 March 2026
GERRITSEN MULKES, J. (JASPER) 1634
12363 SBO Viertallencompetitie 2025/2026 Ronde 1 (deels A), Ronde 2 (B-G) · Thursday 27 November 2025
BRUGGINK, T. (THEO) 1567
12665 H.S.C.-Stork interne competitie 27-11-2025 t/m 11-12-2025 (030039) · Thursday 4 December 2025
Worst losses
DEKKERS, H.J. (HENK) 1503
11484 H.S.C.-Stork interne competitie 01-05-2025 t/m 05-06-2025 (030039) · Thursday 22 May 2025
BRUGGINK, T. (THEO) 1586
13439 H.S.C.-Stork interne competitie 29-01-2026 t/m 26-03-2026 (030039) · Thursday 5 February 2026
KUILENBURG VAN, P.J. (PIET) 1642
12122 H.S.C.-Stork interne competitie 11-09-2025 t/m 23-10-2025 (030039) · Thursday 9 October 2025
KRANENBURG, K. (KEES) 1679
12377 H.S.C.-Stork interne competitie 30-10-2025 t/m 20-11-2025 (030039) · Thursday 13 November 2025
LEERENTVELD, J.G. (JOHN) 1832
12895 H.S.C.-Stork interne competitie 08-01-2026 t/m 22-01-2026 (030039) · Thursday 22 January 2026
No FIDE-rated tournaments found.
SBO Viertallencompetitie 2025/2026 Lijst Mei Wednesday 1 October 2025 +0–0=1 -2.0
SBO Viertallencompetitie 2025/2026 Lijst April Wednesday 1 October 2025 +0–1=0 -3.7
SBO Viertallencompetitie 2025/2026 Lijst Maart Wednesday 1 October 2025 +0–1=1 -10.1
SBO Viertallencompetitie 2025/2026 Ronde 1 (deels A), Ronde 2 (B-G) Wednesday 1 October 2025 +1–0=0 +10.7
SBO Viertallencompetitie 2025/2026 Ronde 1 (B-G) Wednesday 1 October 2025 +1–0=0 +11.1
H.S.C.-Stork interne competitie 29-01-2026 t/m 26-03-2026 (030039) Thursday 4 September 2025 +2–2=0 +0.1
H.S.C.-Stork interne competitie 08-01-2026 t/m 22-01-2026 (030039) Thursday 4 September 2025 +0–1=1 -10.1
H.S.C.-Stork interne competitie 27-11-2025 t/m 11-12-2025 (030039) Thursday 4 September 2025 +1–0=1 +15.7
H.S.C.-Stork interne competitie 30-10-2025 t/m 20-11-2025 (030039) Thursday 4 September 2025 +2–1=0 -6.3
H.S.C.-Stork interne competitie 11-09-2025 t/m 23-10-2025 (030039) Thursday 4 September 2025 +1–3=2 -12.9
H.S.C.-Stork interne competitie 01-05-2025 t/m 05-06-2025 (030039) Sunday 1 September 2024 +1–2=2 -17.6

Rating History

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Peak Ratings

Classic 1775 Dec. 1, 2024
Rapid 1697 March 1, 2026
Blitz 1697 March 1, 2026

Games

Wins 9
Losses 11
Draws 8
Win Rate 32%

Performance by Color

Color Wins Draws Losses Win Rate
White 3 4 5 25%
Black 6 4 6 38%

Recent Matches

Beltman, R. (Rick) (1636) Thursday 16 April 2026 DRAW -2.0
Kranenburg, K. (Kees) (1692) Thursday 26 March 2026 WIN +12.3
Snuverink, M. (Michiel) (1995) Monday 23 March 2026 LOSS -3.7
Leerentveld, J.G. (John) (1886) Thursday 19 March 2026 LOSS -6.4
Wanningen, N. (Nick) (1646) Thursday 12 March 2026 WIN +10.7
Reijtenbagh, A.J.C. (Alexander) (1526) Thursday 19 February 2026 DRAW -5.9
Bruggink, T. (Theo) (1586) Thursday 5 February 2026 LOSS -16.6
Snuverink, M. (Michiel) (1991) Thursday 29 January 2026 LOSS -4.2
Leerentveld, J.G. (John) (1832) Thursday 22 January 2026 LOSS -8.6
Kranenburg, K. (Kees) (1675) Thursday 15 January 2026 DRAW -1.5
Eijkelkamp, R.J. (Regobert) (1926) Thursday 11 December 2025 DRAW +7.4
Bruggink, T. (Theo) (1567) Thursday 4 December 2025 WIN +8.3
Gerritsen Mulkes, J. (Jasper) (1634) Thursday 27 November 2025 WIN +10.7
Dekkers, H.J. (Henk) (1500) Thursday 20 November 2025 WIN +6.4
Kranenburg, K. (Kees) (1679) Thursday 13 November 2025 LOSS -12.7
Wanningen, N. (Nick) Thursday 6 November 2025 WIN
Robers, F.G.J. (Fredrik) (1658) Monday 27 October 2025 WIN +11.1
Leerentveld, J.G. (John) (1891) Thursday 23 October 2025 LOSS -6.3
Aydemir, I. (Ismail) (1852) Thursday 16 October 2025 LOSS -7.4
Kuilenburg van, P.J. (Piet) (1642) Thursday 9 October 2025 LOSS -14.5