JB

Jalt de Boer

Rated since January 2023

1360 Classic
1360 Rapid
1360 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
HIEMSTRA, D. (DYLAN) 1431
13471 Schaak Combinatie Leeuwarden interne competitie 03-02-2026 t/m 24-03… · Tuesday 3 February 2026
MULKEN VAN, O.J.A. (ONNO) 1243
13471 Schaak Combinatie Leeuwarden interne competitie 03-02-2026 t/m 24-03… · Tuesday 17 March 2026
VERHOEF, K. (KEES) 1211
12836 Schaak Combinatie Leeuwarden interne competitie 02-12-2025 t/m 20-01… · Tuesday 13 January 2026
AARTSMA, D. (DOETA) 1200
12836 Schaak Combinatie Leeuwarden interne competitie 02-12-2025 t/m 20-01… · Tuesday 20 January 2026
Worst losses
LAAN VAN DER, F. (FEDDE) 1469
12836 Schaak Combinatie Leeuwarden interne competitie 02-12-2025 t/m 20-01… · Tuesday 9 December 2025
BOSMA, L. (LEO) 1505
13471 Schaak Combinatie Leeuwarden interne competitie 03-02-2026 t/m 24-03… · Tuesday 3 March 2026
WIERSMA, A. (ATTE) 1627
12836 Schaak Combinatie Leeuwarden interne competitie 02-12-2025 t/m 20-01… · Tuesday 2 December 2025
No FIDE-rated tournaments found.
Schaak Combinatie Leeuwarden interne competitie 03-02-2026 t/m 24-03… Monday 1 September 2025 +2–3=0 +17.5
Schaak Combinatie Leeuwarden interne competitie 02-12-2025 t/m 20-01… Monday 1 September 2025 +2–2=0 +4.0

Rating History

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Peak Ratings

Classic 1381 March 1, 2024
Rapid 1360 April 1, 2026
Blitz 1360 April 1, 2026

Games

Wins 4
Losses 5
Draws 0
Win Rate 44%

Performance by Color

Color Wins Draws Losses Win Rate
White 3 0 2 60%
Black 1 0 3 25%

Recent Matches

Mulken van, O.J.A. (Onno) (1243) Tuesday 17 March 2026 WIN +9.1
Bosma, L. (Leo) (1505) Tuesday 3 March 2026 LOSS -7.1
Weeks, G.J.F. (James) Tuesday 17 February 2026 LOSS
Dijks, J. (Jasper) Tuesday 10 February 2026 LOSS
Hiemstra, D. (Dylan) (1431) Tuesday 3 February 2026 WIN +15.5
Aartsma, D. (Doeta) (1200) Tuesday 20 January 2026 WIN +7.8
Verhoef, K. (Kees) (1211) Tuesday 13 January 2026 WIN +8.2
Laan van der, F. (Fedde) (1469) Tuesday 9 December 2025 LOSS -8.1
Wiersma, A. (Atte) (1627) Tuesday 2 December 2025 LOSS -3.9