KNSB FIDE
LB

Leo Bosma

Rated since January 2023

1534 Classic
1508 Rapid
1506 Blitz

Team Competition

Current team
Schaak Combinatie Leeuwarden 1
Klasse 5A · 2024-2025 · 1 game
Past teams
Philidor 1847 3
Klasse 5A · 2023-2024
6 games
Philidor 3
Tweede klasse A · 2023-2024
1 game
MSV 1
3C · 2022-2023
1 game
MSV1
3C · 2021-2022
7 games
Meppeler S.V. 3
3C · 2019-2020
4 games

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
VRIES DE, H. (HERMAN) 1537
13073 Fries Kampioenschap 60+ Groep A · Monday 16 February 2026
NAGTEGAAL, R. (RENEEY) 1459
13988 Schaak Combinatie Leeuwarden interne competitie 31-03-2026 t/m 09-06… · Tuesday 9 June 2026
ROMKEMA, W. (WIEGER) 1419
13988 Schaak Combinatie Leeuwarden interne competitie 31-03-2026 t/m 09-06… · Tuesday 7 April 2026
JONG DE, J. (JOLLE) 1359
13988 Schaak Combinatie Leeuwarden interne competitie 31-03-2026 t/m 09-06… · Tuesday 26 May 2026
BOER DE, J. (JALT) 1343
13471 Schaak Combinatie Leeuwarden interne competitie 03-02-2026 t/m 24-03… · Tuesday 3 March 2026
Worst losses
DOKTER, M. (MENNO) 1455
13471 Schaak Combinatie Leeuwarden interne competitie 03-02-2026 t/m 24-03… · Tuesday 24 March 2026
BOZANIC, L. (LEON) 1670
12358 Waling Dijkstra Weekendtoernooi 2025 - · Saturday 15 November 2025
MAANEN VAN, L. (LEO) 1690
13073 Fries Kampioenschap 60+ Groep A · Thursday 12 February 2026
WASSENAAR, J.M. (MEINE) 1787
13073 Fries Kampioenschap 60+ Groep A · Friday 20 February 2026
JANSEN, H. (HENK) 1834
13073 Fries Kampioenschap 60+ Groep A · Tuesday 3 February 2026
Fries Kampioenschap 60+ Groep A Tuesday 3 February 2026 +1–4=0 -2.9
Waling Dijkstra Weekendtoernooi 2025 - Friday 14 November 2025 +1–3=1 -14.1
Schaak Combinatie Leeuwarden Intern 1-10 Tuesday 16 September 2025 +0–1=0
Schaak Combinatie Leeuwarden interne competitie 31-03-2026 t/m 09-06… Monday 1 September 2025 +4–0=3 +28.4
Schaak Combinatie Leeuwarden interne competitie 03-02-2026 t/m 24-03… Monday 1 September 2025 +3–2=0 +0.8

Rating History

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Peak Ratings

Classic 1566 May 1, 2025
Rapid 1531 Feb. 1, 2025
Blitz 1522 March 1, 2026

Games

Wins 9
Losses 10
Draws 4
Win Rate 39%

Performance by Color

Color Wins Draws Losses Win Rate
White 8 1 3 67%
Black 1 3 7 9%

Recent Matches

Nagtegaal, R. (Reneey) (1459) Tuesday 9 June 2026 WIN +10.9
Jong de, J. (Jolle) (1359) Tuesday 26 May 2026 WIN +7.6
Kuscu, M. (Mithat) Tuesday 19 May 2026 DRAW
Vlieg, P. (Piet) (1523) Tuesday 12 May 2026 DRAW +0.6
Laan van der, F. (Fedde) (1502) Tuesday 14 April 2026 DRAW -0.1
Romkema, W. (Wieger) (1419) Tuesday 7 April 2026 WIN +9.5
Jeer de, A. (Alexander) Tuesday 31 March 2026 WIN
Dokter, M. (Menno) (1455) Tuesday 24 March 2026 LOSS -14.2
Boer de, J. (Jalt) (1343) Tuesday 3 March 2026 WIN +7.1
Ofoegbu, D.C. (Daniel) Tuesday 24 February 2026 LOSS
Wassenaar, J.M. (Meine) (1787) Friday 20 February 2026 LOSS -4.1
Aartsma, D. (Doeta) (1200) Tuesday 17 February 2026 WIN +3.5
Vries de, H. (Herman) (1537) Monday 16 February 2026 WIN +13.5
Maanen van, L. (Leo) (1690) Thursday 12 February 2026 LOSS -6.6
Dzaferspahic, Z. (Zahid) (1869) Wednesday 11 February 2026 LOSS -2.6
Mulken van, O.J.A. (Onno) (1243) Tuesday 10 February 2026 WIN +4.4
Jansen, H. (Henk) (1834) Tuesday 3 February 2026 LOSS -3.2
Cnossen, H.F. (Hinke Fiona) Sunday 16 November 2025 WIN
Roersma, M. (Melvin) (1435) Sunday 16 November 2025 DRAW -1.5
Bozanic, L. (Leon) (1670) Saturday 15 November 2025 LOSS -7.6