SJ

Stefan Joostensz

Rated since January 2023

964 Classic
1420 Rapid

RIVALRY

Nemesis
Kwan, E. (Ethan)
Games: 5 · Win rate: 40%
Kryptonite
Leal van Helden, B. (Breixo)
Games: 4 · Win rate: 25%
Easy Target
Reddy, R. (Rushab)
Games: 3 · Win rate: 67%

The good & the bad

Best wins
RAGESH, R.J. (RITHANYA) 1179
9449 HSB GP 3 Promotie Middag · Saturday 7 December 2024
CHI, J. (JAYDEN) 1147
9449 HSB GP 3 Promotie Middag · Saturday 7 December 2024
NARASIMHAN, L. (LAKSHAY) 1131
9448 HSB GP 2 Botwinnik Middag · Sunday 17 November 2024
REDDY, R. (RUSHAB) 1113
9448 HSB GP 2 Botwinnik Middag · Sunday 17 November 2024
ABAFAR, A. (ARIANA) 1084
9449 HSB GP 3 Promotie Middag · Saturday 7 December 2024
Worst losses
KAZI, Z. (ZIDAN) 191
6172 PJK E en Voorronde PJK C en D PJK E · Sunday 4 December 2022
STEEN VAN DER, A.A. (JOJO) 265
6713 Jeugdclubkampioenschappen RSB/HSB 2023 Cat E · Saturday 25 February 2023
LEAL VAN HELDEN, B. (BREIXO) 271
7098 HSB GP 7 DSC Middag groep · Sunday 7 May 2023
BERIÈRE, P. (PIM) 272
6185 HSB GP 8 SG Rijswijk Ochtend groep · Sunday 4 June 2023
VELSEN VAN, P.J. (PEPIJN) 302
6185 HSB GP 8 SG Rijswijk Ochtend groep · Sunday 4 June 2023
No FIDE-rated tournaments found.
HSB GP 3 Promotie Middag Saturday 7 December 2024 +4–1=0 +40.0
HSB GP 2 Botwinnik Middag Sunday 17 November 2024 +4–1=0 +58.8
HSB GP 1 SHTV Ochtend sessie Saturday 19 October 2024 +4–2=2 +41.6
Jeugdclubkampioenschap RSB/HSB 2024 cat AB en D Cat D Saturday 16 March 2024 +2–3=0 +11.3
PJK E en voorronde PJK CD D Sunday 3 December 2023 +2–4=0 -34.8
HSB GP 2 Botwinnik Groep A Sunday 12 November 2023 +6–4=0 +43.3
HSB GP 1 SHTV Ochtend groep Saturday 14 October 2023 +4–3=1 +19.1
HSB GP 8 SG Rijswijk Ochtend groep Sunday 4 June 2023 +6–4=0 +37.2
HSB GP 7 DSC Middag groep Sunday 7 May 2023 +2–8=0 -74.0
Jeugdclubkampioenschappen RSB/HSB 2023 Cat E Saturday 25 February 2023 +2–7=0 -72.2
HSB GP 5 Schaakmat Westland Groep A Saturday 18 February 2023 +3–5=2 -85.8
HSB GP 4 Voorburg DD3 Sunday 11 December 2022 +4–0=1 -5.7
PJK E en Voorronde PJK C en D PJK E Sunday 4 December 2022 +4–3=0 -36.6

Rating History

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Peak Ratings

Classic 964 April 1, 2024
Rapid 1420 May 1, 2026

Games

Wins 47
Losses 45
Draws 6
Win Rate 48%

Performance by Color

Color Wins Draws Losses Win Rate
White 26 4 21 51%
Black 21 2 24 45%

Recent Matches

Gupta, K. (Krshnavi) (937) Saturday 7 December 2024 WIN +7.7
Chi, J. (Jayden) (1147) Saturday 7 December 2024 WIN +17.9
Abafar, A. (Ariana) (1084) Saturday 7 December 2024 WIN +14.5
Kwan, E. (Ethan) (1190) Saturday 7 December 2024 LOSS -19.7
Ragesh, R.J. (Rithanya) (1179) Saturday 7 December 2024 WIN +19.7
Chi, J. (Jayden) (1115) Sunday 17 November 2024 WIN +20.2
Kwan, E. (Ethan) (1119) Sunday 17 November 2024 LOSS -19.6
Ooms, T. (Tobias) (1055) Sunday 17 November 2024 WIN +16.9
Narasimhan, L. (Lakshay) (1131) Sunday 17 November 2024 WIN +21.1
Reddy, R. (Rushab) (1113) Sunday 17 November 2024 WIN +20.1
Zhang, O. (Ouchen) (1053) Saturday 19 October 2024 DRAW -0.1
Bos, W. (Wester) (1056) Saturday 19 October 2024 WIN +20.1
Reddy, R. (Rushab) (1059) Saturday 19 October 2024 LOSS -19.7
Brockhuis, L. (Laurens) (1062) Saturday 19 October 2024 WIN +20.5
Zhang, O. (Ouchen) (1053) Saturday 19 October 2024 LOSS -20.1
Bos, W. (Wester) (1056) Saturday 19 October 2024 WIN +20.1
Reddy, R. (Rushab) (1059) Saturday 19 October 2024 WIN +20.3
Brockhuis, L. (Laurens) (1062) Saturday 19 October 2024 DRAW +0.5
Isa, M. (Maya) (1338) Saturday 16 March 2024 LOSS -3.2
Broek van den, D. (D'Angelo) (1190) Saturday 16 March 2024 LOSS -4.8