SF

Senn Jonah Frederiks

Rated since January 2023

1210 Classic
1074 Rapid

RIVALRY

Nemesis
Kruyt, J. (Jayden)
Games: 3 · Win rate: 33%

The good & the bad

Best wins
PROKOPENKO, T.D. (TYMUR) 1027
5807 Tinnen Soldaat Groep A · Saturday 7 January 2023
WEMPE, T.J. (TIJN) 1004
9348 ONJK 2024 Groep E · Saturday 3 August 2024
METHLOUTHI, A. (ALY) 933
9348 ONJK 2024 Groep E · Wednesday 7 August 2024
HUBER, RICARDA 657
9348 ONJK 2024 Groep E · Tuesday 6 August 2024
KERCKHAERT, R. (ROEF) 507
6531 PJK OSBO FGH · Saturday 11 February 2023
Worst losses
LANGBROEK, J. (JESPER) 269
5807 Tinnen Soldaat Groep A · Saturday 7 January 2023
WIJK VAN, C. (COBIJN) 355
6531 PJK OSBO FGH · Saturday 11 February 2023
STEEDS, S. (SAMGAR) 372
5258 Nationale Pupillendag (F t/m H) Groep F Jeugd · Saturday 17 June 2023
ZUIJDWEG, E. (EZRA) 619
5807 Tinnen Soldaat Groep A · Saturday 7 January 2023
CHUA, T.Y. (TENG YI) 638
5258 Nationale Pupillendag (F t/m H) Groep F Jeugd · Saturday 17 June 2023
No FIDE-rated tournaments found.
ONJK 2026 ONJK 2026 DE Thursday 30 July 2026 +2–9=1
Grand-Prix ASA Arnhem Groep F Saturday 20 September 2025 +0–7=0 -156.7
Open Nederlandse Jeugdschaakkampioenschappen (ONJK) 2025 Groep D Thursday 31 July 2025 +0–11=1
ONJK 2024 Groep E Friday 2 August 2024 +3–9=0 -61.5
Grand Prix Zutphen Groep I Saturday 11 November 2023 +5–0=0 +5.3
Nationale Pupillendag (F t/m H) Groep F Jeugd Saturday 17 June 2023 +0–7=0 -37.6
11e Martien Roodtoernooi Groep A Saturday 18 February 2023 +3–5=0
PJK OSBO FGH Saturday 11 February 2023 +7–1=1 +49.2
Tinnen Soldaat Groep A Saturday 7 January 2023 +1–5=1 -1.2

Rating History

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Peak Ratings

Classic 1210 Oct. 1, 2026
Rapid 1111 Oct. 1, 2025

Games

Wins 21
Losses 54
Draws 4
Win Rate 27%

Performance by Color

Color Wins Draws Losses Win Rate
White 10 1 28 26%
Black 11 3 26 28%

Recent Matches

Alagöz, R. (Roni) Wednesday 5 August 2026 LOSS
Shiralkar, R. (Rudra) Wednesday 5 August 2026 LOSS
Boomhouwer, P. (Pieter) Tuesday 4 August 2026 LOSS
Lee, S. (Shion) Tuesday 4 August 2026 DRAW
Bolte, S. (Seth) Monday 3 August 2026 LOSS
Sonumkar, A. (Arni) Saturday 1 August 2026 LOSS
Rooij de, R. (Rein) Saturday 1 August 2026 WIN
Duijn van, N.A. (Niels) Saturday 1 August 2026 LOSS
Schotsman, A. (Art) Friday 31 July 2026 LOSS
Zantingh, S. (Syd) (1329) Friday 31 July 2026 LOSS
Kruyt, J. (Jayden) Friday 31 July 2026 WIN
Sung, Y.X. (Yong Xin) Thursday 30 July 2026 LOSS
Ünlü, A. (Ahmet Mete) (1208) Saturday 20 September 2025 LOSS -14.2
Yu, J.B. (James) (1018) Saturday 20 September 2025 LOSS -24.6
Paltoe, A. (Aidan) (1069) Saturday 20 September 2025 LOSS -21.8
Molenaar, S. (Samuel) (1071) Saturday 20 September 2025 LOSS -21.7
Ududenko, M. (Michael) (1074) Saturday 20 September 2025 LOSS -21.5
Mierlo van, G. (Guus) (1093) Saturday 20 September 2025 LOSS -20.5
Alagöz, R. (Roni) (846) Saturday 20 September 2025 LOSS -32.6
Brouns, N. (Niels Jamie) Wednesday 6 August 2025 LOSS