KNSB FIDE
OM

Olav Mostertman

Rated since January 2023

1778 Classic
1778 Rapid
1778 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
FOUNTAS, PETROS 1916
34th OPEN CHESS TOURNAMENT OF KAVALA VASILIS THEODORIDIS B · Tuesday 29 July 2025
BOS VAN DEN, F.P. (FRANS PIETER) 1843
8456 Chess Festival Groningen Compact · Sunday 29 December 2024
EUWEMA, J.J. (JAAP) 1780
8456 Chess Festival Groningen Compact · Friday 27 December 2024
VISSER, E.Y. (YNTE) 1775
9910 NOSBO competitie 2024-2025 November 2024 · Thursday 14 November 2024
VOERMANS, A.J.H. (ADRI) 1759
8456 Chess Festival Groningen Compact · Monday 30 December 2024
Worst losses
MAIZENBERGS, LEVS 1561
Riga Technical University Open 2024 - Tournament B · Friday 9 August 2024
AUGUNAS, TAJUS 1587
Riga Technical University Open 2024 - Tournament B · Wednesday 7 August 2024
OZTAN, TUNA 1607
34th OPEN CHESS TOURNAMENT OF KAVALA VASILIS THEODORIDIS B · Friday 1 August 2025
ADLERBORN, ELIS 1632
Riga Technical University Open 2024 - Tournament B · Thursday 8 August 2024
LAINEVOOL, MIRKO 1632
Riga Technical University Open 2024 - Tournament B · Tuesday 6 August 2024
Chess Festival Groningen Compact Saturday 21 December 2024 +3–1=1 +35.3
Riga Technical University Open 2024 - Tournament B Monday 5 August 2024 +2–5=0 -84.3
34th OPEN CHESS TOURNAMENT OF KAVALA VASILIS THEODORIDIS B Monday 28 July 2025 +3–3=1 -0.6
NOSBO competitie 2024-2025 December 2024 Monday 25 November 2024 +0–1=0 -8.6
NOSBO competitie 2024-2025 November 2024 Monday 14 October 2024 +1–0=0 +14.7
NOSBO-competitie 2023-2024 Mei 2024 Sunday 1 October 2023 +0–0=1 -0.7
NOSBO-competitie 2023-2024 Maart 2024 Sunday 1 October 2023 +0–1=0 -10.1
NOSBO-competitie 2023-2024 Februari 2024 Sunday 1 October 2023 +1–0=0 +10.7
NOSBO competitie 2022-2023 April 2023 Monday 24 October 2022 +1–0=0 +13.2
NOSBO competitie 2022-2023 Maart 2023 Monday 24 October 2022 +0–0=1 -10.2
NOSBO competitie 2022-2023 Februari 2023 Monday 24 October 2022 +1–0=0 +15.0
NOSBO competitie 2022-2023 Januari 2023 Monday 24 October 2022 +1–0=0 +11.4
NOSBO competitie 2022-2023 December 2022 Monday 24 October 2022 +1–0=0 +5.8

Rating History

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Peak Ratings

Classic 1833 March 1, 2024
Rapid 1778 March 1, 2026
Blitz 1778 March 1, 2026

Games

Wins 14
Losses 11
Draws 4
Win Rate 48%

Performance by Color

Color Wins Draws Losses Win Rate
White 7 2 5 50%
Black 7 2 6 47%

Recent Matches

Kougkoulis, Christos Orfeas (1652) Saturday 2 August 2025 WIN +8.3
Oztan, Tuna (1607) Friday 1 August 2025 LOSS -18.4
Uzag, Alper (1849) Thursday 31 July 2025 LOSS -10.2
Dimakis, Stavros (1966) Wednesday 30 July 2025 DRAW +6.2
Giannopoulos, Vasileios (1891) Tuesday 29 July 2025 LOSS -8.8
Fountas, Petros (1916) Tuesday 29 July 2025 WIN +17.3
Sadik, Ismail Ischak (1535) Monday 28 July 2025 WIN +5.0
Voermans, A.J.H. (Adri) (1759) Monday 30 December 2024 WIN +13.4
Bos van den, F.P. (Frans Pieter) (1843) Sunday 29 December 2024 WIN +16.5
Braekmans, Geert (1824) Saturday 28 December 2024 DRAW +2.6
Euwema, J.J. (Jaap) (1780) Friday 27 December 2024 WIN +14.2
Rutten, D. (David) (1802) Thursday 26 December 2024 LOSS -11.4
Voorintholt, G.K. (Gerard) (1869) Thursday 28 November 2024 LOSS -8.6
Visser, E.Y. (Ynte) (1775) Thursday 14 November 2024 WIN +14.7
Diners, Kirils (1462) Sunday 11 August 2024 WIN +2.9
Maizenbergs, Levs (1561) Friday 9 August 2024 LOSS -23.1
Adlerborn, Elis (1632) Thursday 8 August 2024 LOSS -21.0
Augunas, Tajus (1587) Wednesday 7 August 2024 LOSS -22.3
Lainevool, Mirko (1632) Tuesday 6 August 2024 LOSS -21.0
Maratkanov, Evgeny (2073) Tuesday 6 August 2024 LOSS -5.3