KNSB FIDE

Frits Gieltjes

Rated since January 2023

1774 Classic

1764 Rapid

1764 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins

WAL VAN DE, G.J. (GEURT) 1730

10471 Tata Steel Chess Tournament 2026 Weekendvierkampem · Saturday 17 January 2026

HERTOG DEN, A. (ADRIAAN) 1699

12776 SOS competitie 2025/2026 Lijst 1 apr · Wednesday 11 March 2026

BAKKER, J. (JAN) 1691

12777 SOS competitie 2025/2026 Lijst 1 mei · Tuesday 14 April 2026

HOOGERDUIJN, H. (HANS) 1626

5711 SOS Competitie 2022/2023 December 2022 · Wednesday 30 November 2022

DEENIK, K. (KEVIN) 1588

12051 SOS competitie 2025/2026 Lijst 1 Nov · Friday 26 September 2025

Worst losses

BEERDSEN, M.H. (MARCO) 1648

5713 SOS Competitie 2022/2023 Februari 2023 · Wednesday 8 February 2023

MOSTERD, J. (JOHAN) 1692

12992 KNSB competitie 2025-2026 Klasse 5 ronde 6 · Saturday 7 February 2026

KRUSE, C. (CHRIS) 1707

12774 SOS competitie 2025/2026 Lijst 1 feb · Wednesday 14 January 2026

HENSBERGEN VAN, M. (MITCH) 1791

13315 KNSB competitie 2025-2026 Klasse 5 ronde 5 · Saturday 28 March 2026

GROEN, E.C. (EDWIN) 1822

12594 KNSB competitie 2025-2026 Klasse 5 ronde 4 · Saturday 13 December 2025

Tata Steel Chess Tournament 2026 Weekendvierkampem Friday 16 January 2026 +1–0=2 +9.8

KNSB competitie 2025-2026 Klasse 5 ronde 5 Saturday 20 September 2025 +0–2=0 -23.2

KNSB competitie 2025-2026 Klasse 5 ronde 6 Saturday 20 September 2025 +0–1=0 -15.6

KNSB competitie 2025-2026 Klasse 5 ronde 4 Saturday 20 September 2025 +0–1=0 -11.7

KNSB competitie 2025-2026 Klasse 5 Ronde 3 Saturday 20 September 2025 +0–1=0 -10.4

KNSB competitie 2025-2026 Klasse 5 ronde 2 Saturday 20 September 2025 +0–0=1 -0.7

KNSB competitie 2025-2026 Klasse 5 ronde 1 Saturday 20 September 2025 +0–1=0 -11.7

SOS competitie 2025/2026 Lijst 1 mei Monday 1 September 2025 +1–0=0 +10.0

SOS competitie 2025/2026 Lijst 1 apr Monday 1 September 2025 +2–0=0 +20.4

SOS competitie 2025/2026 Lijst 1 feb Monday 1 September 2025 +0–1=0 -15.2

SOS competitie 2025/2026 Lijst 1 Dec Monday 1 September 2025 +0–1=0 -9.0

SOS competitie 2025/2026 Lijst 1 Nov Monday 1 September 2025 +1–0=0 +5.1

KNSB competitie 2024-2025 Klasse 5 ronde 7 Saturday 21 September 2024 +0–0=1 -3.2

KNSB competitie 2024-2025 Klasse 5 ronde 5 Saturday 21 September 2024 +0–1=0 -9.7

KNSB competitie 2023-2024 Klasse 5 ronde 4 Saturday 16 September 2023 +0–0=1 -6.0

SOS Competitie 2022/2023 Februari 2023 Monday 12 September 2022 +0–1=0 -16.1

SOS Competitie 2022/2023 December 2022 Monday 12 September 2022 +1–0=0 +8.5

Rating History

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Peak Ratings

Classic 1838 March 1, 2024

Rapid 1765 March 1, 2026

Blitz 1765 March 1, 2026

Games

Wins 6

Losses 10

Draws 5

Win Rate 29%

Performance by Color

Color	Wins	Draws	Losses	Win Rate
White	2	3	6	18%
Black	4	2	4	40%

Recent Matches

Bakker, J. (Jan) (1691) Tuesday 14 April 2026 WIN +10.0

Hensbergen van, M. (Mitch) (1791) Saturday 28 March 2026 LOSS -11.6

Hertog den, A. (Adriaan) (1699) Wednesday 11 March 2026 WIN +10.2

Mosterd, J. (Johan) (1692) Saturday 7 February 2026 LOSS -15.6

Roebers, B.M. (Bregje) (1775) Sunday 18 January 2026 DRAW -0.4

Wal van de, G.J. (Geurt) (1730) Saturday 17 January 2026 WIN +10.6

Reurs, F.N. (Frank) (1775) Friday 16 January 2026 DRAW -0.4

Kruse, C. (Chris) (1707) Wednesday 14 January 2026 LOSS -15.2

Groen, E.C. (Edwin) (1822) Saturday 13 December 2025 LOSS -11.7

Weersel van, D. (Dustin) (1879) Saturday 22 November 2025 LOSS -10.4

Keijzer de, C.A. (Corstiaan) (1920) Wednesday 19 November 2025 LOSS -9.0

Koeleman, G.M. (Gerard) (1798) Saturday 1 November 2025 DRAW -0.7

Paus de, P.L. (Pieter) (1847) Saturday 4 October 2025 LOSS -11.7

Deenik, K. (Kevin) (1588) Friday 26 September 2025 WIN +5.1

Nuland van, T.H.A.M. (Dirk) (1736) Saturday 5 April 2025 DRAW -3.2

Leeftink, G. (Gerbert) (1918) Saturday 8 February 2025 LOSS -9.7

Borggreve, M.H.M. (Martin) (1551) Saturday 16 December 2023 DRAW -6.0

Beerdsen, M.H. (Marco) (1648) Wednesday 8 February 2023 LOSS -16.1