KNSB FIDE
SJ

Stefan Jorritsma

Rated since January 2023

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
BIK, W. (WOUTER) 2037
10703 KNSB competitie 2024-2025 Klasse 3 ronde 7 · Saturday 8 March 2025
BAKKER, R. (ROEL) 2011
12991 KNSB competitie 2025-2026 Klasse 4 ronde 7 · Saturday 7 February 2026
TUPET, GUILLAUME 2003
46ste Open Internationaal Toernooi Gent · Tuesday 22 July 2025
DARIE, A.C. (ADEN) 1969
10070 KNSB competitie 2024-2025 Klasse 3 ronde 5 · Saturday 14 December 2024
KAT, R. (RUDOLF) 1966
11891 NHSB-competitie 2025-2026 Klasse 1B t/m 26-09-2025 · Thursday 25 September 2025
Worst losses
DELENS, YOREN 1431
44ste Open Internationaal toernooi Gent 2023 · Sunday 16 July 2023
VYAS, ALISHA 1643
44ste Open Internationaal toernooi Gent 2023 · Monday 17 July 2023
ATTINGER, R.R. (ROMAN) 1735
6418 Tata Steel Chess Tournament 2023 Tienkampen · Monday 23 January 2023
BURER, A.R.M. (AUDRY) 1751
7620 Tata Steel Chess Tournament 2024 Tienkampen · Tuesday 23 January 2024
VERKOOIJEN, P. (PAUL) 1753
6641 NHSB-competitie 2022-2023 Klasse 1B t/m februari · Monday 30 January 2023
Tata Steel Chess Tournament 2026 Tienkampen Friday 16 January 2026 +2–2=5 -11.0
Tata Steel Chess Tournament 2025 Tienkampen Friday 17 January 2025 +4–3=1 +14.2
Tata Steel Chess Tournament 2024 Tienkampen Friday 12 January 2024 +3–4=2 +9.0
Tata Steel Chess Tournament 2023 Tienkampen Friday 13 January 2023 +7–1=0 +58.4
KNSB competitie 2025-2026 Klasse 4 ronde 9 Saturday 20 September 2025 +0–1=0 -15.0
KNSB competitie 2025-2026 Klasse 4 ronde 6 Saturday 20 September 2025 +0–1=0 -7.7
KNSB competitie 2025-2026 Klasse 4 ronde 8 Saturday 20 September 2025 +0–0=1 -0.3
KNSB competitie 2025-2026 Klasse 4 ronde 7 Saturday 20 September 2025 +1–0=0 +15.5
KNSB competitie 2025-2026 Klasse 4 ronde 5 Saturday 20 September 2025 +0–1=0 -13.1
KNSB competitie 2025-2026 Klasse 4 Ronde 4 Saturday 20 September 2025 +1–0=0 +9.2
KNSB competitie 2025-2026 Klasse 4 ronde 3 Saturday 20 September 2025 +1–0=0 +11.3
KNSB competitie 2025-2026 Klasse 4 ronde 2 Saturday 20 September 2025 +0–0=1 +3.1
KNSB competitie 2025-2026 Klasse 4 ronde 1 Saturday 20 September 2025 +1–0=0 +11.7
NHSB-competitie 2025-2026 Topklasse t/m 19-04-2026 Monday 1 September 2025 +0–1=0 -12.1
NHSB-competitie 2025-2026 Klasse 1B t/m 05-04-2026 Monday 1 September 2025 +1–0=0 +12.1
NHSB-competitie 2025-2026 Klasse 1B t/m 15-03-2026 Monday 1 September 2025 +0–0=1 +3.6
NHSB-competitie 2025-2026 Zilver t/m 08-03-2026 Monday 1 September 2025 +0–0=1 +1.5
NHSB-competitie 2025-2026 Goud t/m 01-03-2026 Monday 1 September 2025 +0–0=1 +2.4
NHSB-competitie 2025-2026 Klasse 1B t/m 22-02-2026 Monday 1 September 2025 +0–1=0 -10.7
NHSB-competitie 2025-2026 Zilver t/m 18-01-2026 Monday 1 September 2025 +0–0=1 -2.8
NHSB-competitie 2025-2026 Klasse 1B t/m 07-12-2025 Monday 1 September 2025 +0–1=0 -10.5
NHSB-competitie 2025-2026 Klasse 1B t/m 16-11-2025 Monday 1 September 2025 +0–1=0 -12.8
NHSB-competitie 2025-2026 Zilver t/m 09-11-2025 Monday 1 September 2025 +0–0=1 -3.3
NHSB-competitie 2025-2026 Topklasse t/m 19-10-2025 Monday 1 September 2025 +0–1=0 -11.1
NHSB-competitie 2025-2026 Klasse 1B t/m 12-10-2025 Monday 1 September 2025 +1–0=0 +10.8
NHSB-competitie 2025-2026 Klasse 1B t/m 26-09-2025 Monday 1 September 2025 +1–0=0 +13.8
NHSB-competitie 2025-2026 Topklasse t/m 26-09-2025 Monday 1 September 2025 +0–1=0 -8.6
46ste Open Internationaal Toernooi Gent Saturday 19 July 2025 +3–2=2 +11.4
KNSB competitie 2024-2025 Klasse 3 ronde 9 Saturday 21 September 2024 +0–1=0 -5.2
KNSB competitie 2024-2025 Klasse 3 ronde 8 Saturday 21 September 2024 +0–1=0 -11.5
KNSB competitie 2024-2025 Klasse 3 ronde 7 Saturday 21 September 2024 +1–0=0 +17.4
KNSB competitie 2024-2025 Klasse 3 ronde 6 Saturday 21 September 2024 +0–1=0 -13.9
KNSB competitie 2024-2025 Klasse 3 ronde 5 Saturday 21 September 2024 +1–0=0 +17.0
KNSB competitie 2024-2025 Klasse 3 ronde 4 Saturday 21 September 2024 +0–1=0 -4.7
KNSB competitie 2024-2025 Klasse 3 ronde 3 + inhaalwedstrijd ronde 1 Saturday 21 September 2024 +0–0=1 +9.6
KNSB competitie 2024-2025 Klasse 3 ronde 2 Saturday 21 September 2024 +0–1=0 -11.4
KNSB competitie 2024-2025 Klasse 3 ronde 1 Saturday 21 September 2024 +0–1=0 -6.5
NHSB-competitie 2024-2025 Zilver t/m 18-05-2025 Sunday 1 September 2024 +0–1=0 -9.5
NHSB-competitie 2024-2025 Zilver t/m 27-04-2025 Sunday 1 September 2024 +1–0=0 +8.2
NHSB-competitie 2024-2025 Topklasse t/m 27-04-2025 Sunday 1 September 2024 +0–0=1 +8.4
NHSB-competitie 2024-2025 Klasse 2D t/m 06-04-2025 Sunday 1 September 2024 +1–0=0 +8.4
NHSB-competitie 2024-2025 Zilver t/m 09-03-2025 Sunday 1 September 2024 +1–0=0 +8.5
NHSB-competitie 2024-2025 Klasse 2D t/m 26-02-2025 Sunday 1 September 2024 +1–0=0 +11.4
NHSB-competitie 2024-2025 Topklasse t/m 12-01-2025 Sunday 1 September 2024 +1–0=0 +14.6
NHSB-competitie 2024-2025 Klasse 2D t/m 15-12-2024 Sunday 1 September 2024 +1–0=0 +13.9
NHSB-competitie 2024-2025 Klasse 2D t/m 28-11-2024 Sunday 1 September 2024 +0–0=1 -1.8
NHSB-competitie 2024-2025 Klasse 2D t/m 26-10-2024 Sunday 1 September 2024 +0–1=0 -13.7
NHSB-competitie 2024-2025 Topklasse t/m 26-10-2024 Sunday 1 September 2024 +0–1=0 -1.5
45ste Open Internationaal Toernooi Gent Saturday 20 July 2024 +3–3=2 -1.8
KNSB competitie 2023-2024 Klasse 3 ronde 8 Saturday 16 September 2023 +1–0=0 +5.0
KNSB competitie 2023-2024 Klasse 3 ronde 7 Saturday 16 September 2023 +0–1=0 -5.6
KNSB competitie 2023-2024 Klasse 3 ronde 6 Saturday 16 September 2023 +0–1=0 -2.5
KNSB competitie 2023-2024 Klasse 3 ronde 5 Saturday 16 September 2023 +1–0=0 +18.7
KNSB competitie 2023-2024 Klasse 3 ronde 4 Saturday 16 September 2023 +0–1=0 -6.7
KNSB competitie 2023-2024 Klasse 3 ronde 2 Saturday 16 September 2023 +0–1=0 -8.9
KNSB competitie 2023-2024 Klasse 2 ronde 1 Saturday 16 September 2023 +0–1=0 -2.4
NHSB-competitie 2023-2024 Klasse 1B t/m 26-05-2024 Friday 1 September 2023 +1–0=0 +7.5
NHSB-competitie 2023-2024 Klasse 1B t/m 26-03-2024 Friday 1 September 2023 +1–0=0 +12.0
NHSB-competitie 2023-2024 Klasse 1B t/m 23-02-2024 Friday 1 September 2023 +0–1=0 -11.9
NHSB-competitie 2023-2024 Topklasse t/m 26-01-2024 Friday 1 September 2023 +0–0=1 +10.5
NHSB-competitie 2023-2024 Klasse 1B t/m 26-01-2024 Friday 1 September 2023 +0–1=0 -7.2
NHSB-competitie 2023-2024 Klasse 1B t/m 26-12-2023 Friday 1 September 2023 +1–0=0 +13.2
NHSB-competitie 2023-2024 Klasse 1B t/m oktober Friday 1 September 2023 +0–1=0 -7.3
NHSB-competitie 2023-2024 Topklasse t/m oktober Friday 1 September 2023 +0–1=0 -9.1
44ste Open Internationaal toernooi Gent 2023 Saturday 15 July 2023 +4–3=1 -43.0
KNSB competitie 2022-2023 Klasse 3 ronde 9 Saturday 17 September 2022 +0–1=0 -12.4
KNSB competitie 2022-2023 Klasse 3 ronde 8 Saturday 17 September 2022 +0–0=1 +1.5
KNSB competitie 2022-2023 Klasse 3 ronde 7 Saturday 17 September 2022 +0–1=0 -4.5
KNSB competitie 2022-2023 Klasse 3 ronde 6 Saturday 17 September 2022 +0–1=0 -11.4
KNSB competitie 2022-2023 Klasse 3 ronde 5 Saturday 17 September 2022 +0–0=1 +2.7
KNSB competitie 2022-2023 Klasse 3 ronde 4 Saturday 17 September 2022 +0–1=0 -9.0
NHSB-competitie 2022-2023 Topklasse t/m april Thursday 1 September 2022 +0–1=0 -6.8
NHSB-competitie 2022-2023 Klasse 1B t/m maart Thursday 1 September 2022 +1–0=0 +7.3
NHSB-competitie 2022-2023 Beker t/m maart Thursday 1 September 2022 +0–0=1 +1.5
NHSB-competitie 2022-2023 Klasse 1B t/m februari Thursday 1 September 2022 +0–2=0 -25.5
NHSB-competitie 2022-2023 Klasse 1B t/m december Thursday 1 September 2022 +0–1=0 -9.6

Team Competition

Current team
De Wijker Toren 2
Klasse 4D · 2025-2026 · 9 games
Past teams
De Wijker Toren 2
Klasse 3C · 2024-2025
De Wijker Toren 1
Klasse 2C · 2023-2024
De Wijker Toren 2
Klasse 3C · 2023-2024
De Wijker Toren 2
Klasse 3D · 2022-2023
De Wijker Toren 2
Klasse 3D · 2021-2022

Rating History

Loading rating history...

Peak Ratings

Classic 1952 Dec. 1, 2025
Rapid 1919 March 1, 2026
Blitz 1919 March 1, 2026

Games

Wins 47
Losses 53
Draws 27
Win Rate 37%

Performance by Color

Color Wins Draws Losses Win Rate
White 18 11 8 49%
Black 29 16 45 32%

Recent Matches

Pilon, J. (Jeffrey) (1932) Friday 17 April 2026 LOSS -12.1
Bolhuis, R. (Ridens) (1846) Saturday 11 April 2026 LOSS -15.0
Jong de, B.L. (Ben) (1906) Tuesday 31 March 2026 WIN +12.1
Otten, C.J. (Colleen) (2063) Saturday 28 March 2026 LOSS -7.7
Hensbergen, W. (Willem) (2025) Thursday 12 March 2026 DRAW +3.6
Seelemeijer, J. (Jasper) (1910) Saturday 7 March 2026 DRAW -0.3
Mulder, M. (Mick) (1962) Tuesday 3 March 2026 DRAW +1.5
Visser, S.J.J. (Sem-Joshua) (1995) Friday 27 February 2026 DRAW +2.4
Duijvesteijn, A. (André) (1976) Monday 16 February 2026 LOSS -10.7
Bakker, R. (Roel) (2011) Saturday 7 February 2026 WIN +15.5
Desportes, Gerard (1861) Sunday 1 February 2026 DRAW -2.3
Groen, C. (Cor) (1841) Saturday 31 January 2026 WIN +9.5
Buitink, A.J. (Bert) (1921) Friday 30 January 2026 DRAW -0.2
Berg van den, J. (Jaap) (1909) Wednesday 28 January 2026 WIN +11.8
Ebels, T.F. (Theo) (1934) Tuesday 27 January 2026 DRAW +0.2
Griend van de, J. (Johan) (1883) Monday 26 January 2026 DRAW -1.6
Spoden, K. (Kurt) (1895) Sunday 25 January 2026 LOSS -13.7
Dijkhuizen van, R. (Robbert) (1901) Saturday 24 January 2026 LOSS -13.4
Xu, N. (Nicholas M) (1888) Friday 23 January 2026 DRAW -1.4
Cliteur, O.P. (Olaf) (1848) Thursday 15 January 2026 DRAW -2.8