KNSB FIDE
SR

Symon Riedstra

Rated since January 2023

1781 Classic
1781 Rapid
1781 Blitz

RIVALRY

Nemesis
Andrade, Ricardo Sarmento
Games: 4 · Win rate: 50%
Kryptonite
Sismeiro, Miguel
Games: 3 · Win rate: 0%
Easy Target
Mendes, Rui Oscar
Games: 3 · Win rate: 100%

The good & the bad

Best wins
PINTOR, SIMAO 2046
Circuito GXP Campeoes Mundiais - Anand · Friday 13 February 2026
NETO, DINIS FONSECA 2005
Circuito GXP Campeoes Mundiais - Fischer · Friday 12 December 2025
FONSECA, PEDRO MIGUEL RAMOS 1955
Circuito GXP Campeoes Mundiais - Karpov · Friday 9 January 2026
FERREIRA, PAULO (CM) 1885
Circuito GXP Campeoes Mundiais - Fischer · Friday 12 December 2025
SOUSA, PEDRO SIMAO 1875
Circuito GXP Campeoes Mundiais - Anand · Friday 13 February 2026
Worst losses
KOLMER, DIOGO 1125
XL Torneio Aberto de Cucujaes 'Memorial Antonio Pinho' · Sunday 4 December 2022
JULLIAN, HERVE 1505
CD Porto Semirrapidas 2025-26 · Sunday 26 October 2025
PAIVA, MANUEL MARIA FONSECA 1525
CN 2. divisao 2022-23 r.3-4 · Saturday 25 March 2023
TEIXEIRA, MATEUS GOMES 1582
Torneio de Sao Martinho do Paredes GC 2025 · Sunday 9 November 2025
HOOGEVEEN, L. (LUUK) 1584
6252 Chess Festival Groningen Compact C · Wednesday 28 December 2022
CD Porto Veteranos Rapidas 2025-26 - S50 Sunday 22 February 2026 +3–1=1 +20.0
Circuito GXP Campeoes Mundiais - Anand Friday 13 February 2026 +3–3=0 +39.6
CN 3. divisao 2025-26 r. 4 Saturday 7 February 2026 +0–1=0 -9.9
Circuito GXP Campeoes Mundiais - Kramnik Friday 6 February 2026 +2–4=0 -20.1
CN 3. divisao 2025-26 r. 3 Saturday 31 January 2026 +0–0=1 -0.6
Circuito GXP Campeoes Mundiais - Kasparov Friday 30 January 2026 +4–2=1 +28.5
Taca de Portugal r. 2 Sunday 11 January 2026 +0–0=1 +5.6
CD Porto Semirrapidas Equipas 2025-26 Saturday 10 January 2026 +4–1=1 +11.7
Circuito GXP Campeoes Mundiais - Karpov Friday 9 January 2026 +2–2=2 +35.2
Circuito GXP Campeoes Mundiais - Fischer Friday 12 December 2025 +3–3=0 +24.3
Circuito GXP Campeoes Mundiais - Spassky Friday 28 November 2025 +2–4=0 -12.7
Circuito GXP Campeoes Mundiais - Petrosian Friday 14 November 2025 +3–3=0 -0.3
Torneio de Sao Martinho do Paredes GC 2025 Sunday 9 November 2025 +2–1=1 -15.6
CD Porto Semirrapidas 2025-26 Sunday 26 October 2025 +3–1=0 -7.8
Circuito GXP Campeoes Mundiais - Tal Friday 24 October 2025 +2–3=0 -21.6
Circuito GXP Campeoes Mundiais - Smyslov Friday 10 October 2025 +3–3=0 +8.8
CN 3. divisao 2024-25 r. 6-7 Friday 16 May 2025 +1–0=1 -0.7
Taca de Portugal 2024-25 3. elim. Sunday 23 March 2025 +0–1=0 -4.4
CN 3. divisao 2024-25 r.4 Saturday 15 March 2025 +1–0=0 +13.0
CD Porto Veteranos 2024-25 - S50 Saturday 1 March 2025 +4–0=0 +27.9
Taca AXP 2024-25 r.2 Saturday 15 February 2025 +0–0=1 -3.1
Taca de Portugal 2024-25 2. elim Sunday 9 February 2025 +1–0=0 +15.6
CN 3. divisao 2024-25 r. 2-3 Saturday 1 February 2025 +0–1=1 -12.5
Taca de Portugal 2024-25 1. elim Sunday 19 January 2025 +0–0=1 -6.5
Taca AXP 2024-25 r.1 Saturday 11 January 2025 +1–0=0 +6.7
CN 3. divisao 2023-24 r.7 Saturday 22 June 2024 +0–1=0 -10.2
CN 3. divisao 2023-24 r.6 Saturday 11 May 2024 +0–1=0 -10.3
CN 3. divisao 2023-24 r.3-4 Saturday 2 March 2024 +0–0=1 -1.4
Taca AXP 2023-24 r.3 Saturday 24 February 2024 +1–0=0 +7.7
CN 3. divisao 2023-24 r.2 Saturday 3 February 2024 +1–0=0 +4.7
Taca AXP 2023-24 r.2 Saturday 20 January 2024 +1–0=0 +1.2
CN 3. divisao 2023-24 r.1 Saturday 6 January 2024 +1–0=0 +17.6
CN 2. divisao 2022-23 r.8-9 Saturday 3 June 2023 +0–2=0 -5.1
CN 2. divisao 2022-23 r.6-7 Saturday 20 May 2023 +0–1=0 -1.2
CN 2. divisao 2022-23 r.5 Saturday 15 April 2023 +1–0=0 +19.7
CN 2. divisao 2022-23 r.3-4 Saturday 4 March 2023 +0–1=0 -14.1
Taca AXP 2022-23 sf, final Monday 13 February 2023 +0–1=1 +0.6
CN 2. divisao 2022-23 r.2 Saturday 4 February 2023 +0–1=0 -0.2
Taca AXP 2022-23 qf Sunday 22 January 2023 +0–1=0 -5.8
Taca de Portugal 2022-23 r.2 Saturday 14 January 2023 +0–1=0 -1.8
CN 2. divisao 2022-23 r.1 Saturday 7 January 2023 +0–1=0 -7.0
Chess Festival Groningen Compact C Wednesday 21 December 2022 +2–1=1 +6.8
XL Torneio Aberto de Cucujaes 'Memorial Antonio Pinho' Saturday 3 December 2022 +0–2=2 -54.5
Taca AXP 2022-23 r.1 Sunday 27 November 2022 +0–0=1 -8.2

Rating History

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Peak Ratings

Classic 1782 May 1, 2025
Rapid 1785 April 1, 2026
Blitz 1860 April 1, 2026

Games

Wins 51
Losses 48
Draws 18
Win Rate 44%

Performance by Color

Color Wins Draws Losses Win Rate
White 33 6 21 55%
Black 18 12 27 32%

Recent Matches

Sousa, Nuno (1852) Sunday 22 February 2026 LOSS -9.5
Andrade, Ricardo Sarmento (1804) Sunday 22 February 2026 WIN +13.9
Cruz, Jose Silva (1694) Sunday 22 February 2026 WIN +10.1
Teles, Paulo Sergio (1724) Sunday 22 February 2026 DRAW -1.4
Marques, Paulo Miguel (1594) Sunday 22 February 2026 WIN +6.9
Neto, Dinis Fonseca (1876) Friday 13 February 2026 LOSS -8.7
Silva, Jose Lucas Ferreira (2106) Friday 13 February 2026 LOSS -2.9
Sousa, Pedro Simao (1875) Friday 13 February 2026 WIN +16.3
FM Sismeiro, Miguel (2213) Friday 13 February 2026 LOSS -1.5
Pintor, Simao (2046) Friday 13 February 2026 WIN +21.0
Silva, Gabriel Joao (1849) Friday 13 February 2026 WIN +15.4
Freitas, Daniel Leonardo M (1857) Saturday 7 February 2026 LOSS -9.9
Andrade, Ricardo Sarmento (1804) Friday 6 February 2026 LOSS -11.1
Tenreiro, Manuel (1856) Friday 6 February 2026 LOSS -9.3
Mendes, Bruno Daniel (1747) Friday 6 February 2026 WIN +11.9
Mendes, Rui Oscar (1650) Friday 6 February 2026 WIN +8.6
Costa, Tomas Pereira (1907) Friday 6 February 2026 LOSS -7.7
Montenegro, Matias (1766) Friday 6 February 2026 LOSS -12.4
Lopes, Diogo Alberto Rocha (1765) Saturday 31 January 2026 DRAW -0.6
Costa, Nuno Pereira (1740) Friday 30 January 2026 WIN +12.5