KNSB FIDE
LG

Lucas Gortemaker

Rated since January 2023

2023 Classic
2084 Rapid
1947 Blitz

RIVALRY

Nemesis
Lubben van der, A. (Arno)
Games: 3 · Win rate: 33%
Kryptonite
Bakija, A. (Alan)
Games: 3 · Win rate: 33%
Easy Target
Heijer den, C.A. (Rolinde)
Games: 3 · Win rate: 100%

The good & the bad

Best wins
RAGNARSSON, DAGUR (IM) 2337
Reykjavik Open 2024 · Monday 18 March 2024
BAKIJA, A. (ALAN) 2266
11107 RSB Competitie 2024-2025 8-tallen april · Monday 14 April 2025
ARNOLD, R.N.R. (RHYS) 2219
8250 16e BPB Limburg Open 2024 Groep A · Saturday 18 May 2024
TERLOUW, W. (WOUTER) (CM) 2216
10353 Open Dordrecht Rapidtoernooi Groep A · Saturday 1 March 2025
SCHILSTRA, L. (LAURENS) 2203
8281 Tata Steel Chess Tournament 2025 Tienkampen · Sunday 26 January 2025
Worst losses
PRAGNYA H G (WFM) 1612
PRAGUE OPEN 2023 A - IM open · Saturday 7 January 2023
HYLARIDES, C.R. (CHARLIE RONALD) 1750
14145 Open NK Schaken 2026 Snelschaken · Friday 24 July 2026
VEEN VAN, W. (WOUT) 1823
13528 KNSB competitie 2025-2026 Klasse 4 ronde 9 · Saturday 11 April 2026
BERG VAN DEN, J. (JAAP) 1891
12593 KNSB competitie 2025-2026 Klasse 4 ronde 5 · Saturday 13 December 2025
FRIESEN, P.R. (PHILIPPE) 1904
7489 Chessable Open NK 2023 Reserve A · Tuesday 25 July 2023
18de BPB Limburg Open 2026 Groep B Friday 22 May 2026 +4–0=2 +56.6
Tata Steel Chess Tournament 2026 Tienkampen Friday 16 January 2026 +1–6=2 -38.6
Chessfestival Groningen Compact Groep A Friday 26 December 2025 +0–1=2 -25.3
Hoogeveen Schaaktoernooi Ochtend Saturday 18 October 2025 +4–1=2 +15.6
HSG Open 2025 Groep A Friday 20 June 2025 +1–4=1 -43.4
17e BPB Limburg Open 2025 Groep B Friday 6 June 2025 +4–1=2 +12.1
50e Open Kampioenschap van Utrecht Groep A Friday 30 May 2025 +2–1=2 -7.3
Open Dordrecht Rapidtoernooi Groep A Saturday 1 March 2025 +4–3=0 +9.7
Tata Steel Chess Tournament 2025 Tienkampen Friday 17 January 2025 +3–3=3 +23.5
Hoogeveen Schaaktoernooi Open Groep Saturday 26 October 2024 +1–7=0 -77.2
16e BPB Limburg Open 2024 Groep A Friday 17 May 2024 +2–2=2 +31.7
Tata Steel Chess Tournament 2024 Tienkampen Friday 12 January 2024 +1–2=3 -8.0
Chess Festival Groningen Compact A Thursday 21 December 2023 +1–2=1 -15.5
Hoogeveen 2023 Ochtendgroep Groep A Saturday 21 October 2023 +4–1=1 +5.3
Chessable Open NK 2023 Reserve A Monday 24 July 2023 +4–1=4 -3.7
HSG Open 2023 Groep A Friday 23 June 2023 +3–2=1 -5.5
15e BPB Limburg Open 2023 Groep B Friday 26 May 2023 +3–1=3 +1.6
Tata Steel Chess Tournament 2023 Dagvierkampen Friday 13 January 2023 +1–2=0 -15.1
Open NK Schaken 2026 Snelschaken Tuesday 21 July 2026 +5–7=1 -57.6
Open NK Schaken 2026 Snelschaken Tuesday 21 July 2026 +5–7=1 -57.6
KNSB competitie 2025-2026 Klasse 4 ronde 9 Saturday 20 September 2025 +0–1=0 -17.5
KNSB competitie 2025-2026 Klasse 3 ronde 6 Saturday 20 September 2025 +0–0=1 +1.4
KNSB competitie 2025-2026 Klasse 4 ronde 8 Saturday 20 September 2025 +0–1=0 -13.9
KNSB competitie 2025-2026 Klasse 4 ronde 7 Saturday 20 September 2025 +0–1=0 -11.6
KNSB competitie 2025-2026 Klasse 4 ronde 5 Saturday 20 September 2025 +0–1=0 -18.3
KNSB competitie 2025-2026 Klasse 4 Ronde 4 Saturday 20 September 2025 +0–1=0 -11.6
KNSB competitie 2025-2026 Klasse 3 ronde 3 Saturday 20 September 2025 +1–0=0 +8.2
KNSB competitie 2025-2026 KNSB Beker ronde 1 voor november rating Saturday 20 September 2025 +0–0=1 +1.8
KNSB competitie 2025-2026 Klasse 4 ronde 2 Saturday 20 September 2025 +0–1=0 -8.3
RSB Competitie 2025-2026 Achttallen juni Monday 1 September 2025 +1–0=0 +12.6
RSB Competitie 2025-2026 Achttallen april Monday 1 September 2025 +0–0=1 -2.4
RSB Competitie 2025-2026 Achttallen maart Monday 1 September 2025 +0–0=1 +1.5
RSB Competitie 2025-2026 Beker ronde 3 Monday 1 September 2025 +1–0=0 +8.7
RSB Competitie 2025-2026 Beker ronde 2 Monday 1 September 2025 +0–0=1 -4.9
RSB Competitie 2025-2026 Achtallen december Monday 1 September 2025 +1–0=0 +7.8
RSB Competitie 2025-2026 Achtallen november Monday 1 September 2025 +1–0=0 +10.5
RSB Competitie 2025-2026 Beker ronde 1 Monday 1 September 2025 +1–0=0 +9.1
Erasmus Watertorentoernooi Groep A Ronde 7 Monday 7 April 2025 +1–0=0 +13.6
Erasmus Watertorentoernooi Groep A Ronde 3 t/m 6 Monday 7 April 2025 +3–0=1 +10.4
Erasmus Watertorentoernooi Groep A Monday 7 April 2025 +0–0=1 -8.8
84e Noteboomtoernooi Groep A Friday 21 February 2025 +1–3=2 -14.0
KNSB competitie 2024-2025 Klasse 2 ronde 9 Saturday 21 September 2024 +0–1=0 -10.1
KNSB competitie 2024-2025 Klasse 2 ronde 7 Saturday 21 September 2024 +1–0=0 +15.3
KNSB competitie 2024-2025 Klasse 2 ronde 6 Saturday 21 September 2024 +0–1=0 -12.7
KNSB competitie 2024-2025 KNSB Beker ronde 3 voor februarilijst Saturday 21 September 2024 +0–0=1 -0.2
KNSB competitie 2024-2025 Klasse 2 ronde 4 Saturday 21 September 2024 +1–0=0 +14.2
KNSB competitie 2024-2025 Klasse 2 ronde 3 Saturday 21 September 2024 +0–0=1 -2.2
KNSB competitie 2024-2025 Klasse 2 ronde 2 Saturday 21 September 2024 +0–0=1 +6.1
KNSB competitie 2024-2025 Klasse 2 ronde 1 Saturday 21 September 2024 +1–0=0 +10.6
RSB Competitie 2024-2025 8-tallen mei Sunday 1 September 2024 +0–1=0 -7.3
RSB Competitie 2024-2025 8-tallen april Sunday 1 September 2024 +1–0=0 +19.0
RSB Competitie 2024-2025 8-tallen maart Sunday 1 September 2024 +0–0=1 +1.4
RSB Competitie 2024-2025 8-tallen februari Sunday 1 September 2024 +0–0=1 -0.2
RSB Competitie 2024-2025 8-tallen december Sunday 1 September 2024 +1–0=0 +8.5
RSB Competitie 2024-2025 8-tallen oktober Sunday 1 September 2024 +0–1=1 -3.6
Open NK Schaken 2024 Open NK Schaken 2024 Monday 22 July 2024 +2–5=2 -36.1
Reykjavik Open 2024 Friday 15 March 2024 +4–3=1 +38.5
Graz Open 2024 - A Saturday 17 February 2024 +2–3=4 -1.9
Open Leuven 2023 Thursday 9 November 2023 +3–1=2 +23.0
KNSB competitie 2023-2024 Klasse 3 ronde 9 Saturday 16 September 2023 +0–0=1 +0.3
KNSB competitie 2023-2024 Klasse 3 ronde 8 Saturday 16 September 2023 +1–0=0 +6.4
KNSB competitie 2023-2024 Klasse 3 ronde 7 Saturday 16 September 2023 +0–0=1 -3.6
KNSB competitie 2023-2024 Klasse 3 ronde 6 Saturday 16 September 2023 +0–0=1 +0.2
KNSB competitie 2023-2024 Klasse 3 ronde 5 Saturday 16 September 2023 +1–0=0 +8.4
KNSB competitie 2023-2024 Klasse 3 ronde 4 Saturday 16 September 2023 +1–0=0 +8.5
KNSB competitie 2023-2024 Klasse 3 ronde 3 Saturday 16 September 2023 +1–0=0 +1.3
KNSB competitie 2023-2024 Klasse 3 ronde 2 Saturday 16 September 2023 +0–0=1 -9.2
KNSB competitie 2023-2024 Klasse 3 ronde 1 Saturday 16 September 2023 +1–0=0 +2.6
RSB Competitie 2023-2024 8-tallen april Friday 1 September 2023 +1–0=0 +14.8
38ste Internationaal Open van Geraardsbergen 2023 Sunday 6 August 2023 +4–1=2 +9.5
Wachtebeke Winter Round Robin 2023 Group C Saturday 18 February 2023 +5–2=2 +26.4
PRAGUE OPEN 2023 A - IM open Friday 6 January 2023 +5–4=0 -14.7
Chess Festival Groningen Open B Wednesday 21 December 2022 +5–0=2 +53.6
Open Leuven 2022 Thursday 10 November 2022 +3–2=0 +6.6
KNSB competitie 2022-2023 Klasse 3 ronde 8 Saturday 17 September 2022 +0–0=1 -1.9
RSB Competitie 2022-2023 8-tallen mei Thursday 1 September 2022 +1–0=0 +11.6

Team Competition

Current teams
RSR Ivoren Toren 1
Hoofdklasse · 2025-2026 · 5 games
RSR Ivoren Toren 1
Klasse 3E · 2025-2026 · 2 games
RSR Ivoren Toren 2
Klasse 4F · 2025-2026 · 6 games
Past teams
RSR Ivoren Toren 1
Hoofdklasse · 2024-2025
RSR Ivoren Toren 1
Klasse 2C · 2024-2025
RSR Ivoren Toren 1
Klasse 3F · 2023-2024
RSR Ivoren Toren 1
Hoofdklasse · 2023-2024
RSR Ivoren Toren 1
Hoofdklasse · 2022-2023
RSR Ivoren Toren 1
Klasse 3F · 2022-2023

Rating History

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Peak Ratings

Classic 2130 June 1, 2024
Rapid 2084 June 1, 2025
Blitz 2042 March 1, 2026

Games

Wins 109
Losses 88
Draws 68
Win Rate 41%

Performance by Color

Color Wins Draws Losses Win Rate
White 57 33 42 43%
Black 52 35 46 39%

Recent Matches

See, H. (Huidji) (1950) Friday 24 July 2026 LOSS -15.0
CM Drugmand, Benoit (2052) Friday 24 July 2026 LOSS -11.5
Greuthier, Alois (1741) Friday 24 July 2026 WIN +4.1
Wilgenhof, O. (Otto) (2069) Friday 24 July 2026 LOSS -10.9
Alssema, E. (Etien) (2093) Friday 24 July 2026 DRAW +2.4
FM Dessyn, Timothee (2072) Friday 24 July 2026 LOSS -10.8
Hylarides, C.R. (Charlie Ronald) (1750) Friday 24 July 2026 LOSS -20.8
Kruimer, M.H. (Matthias) (1959) Friday 24 July 2026 LOSS -14.7
Omar, Mawloud (1989) Friday 24 July 2026 LOSS -13.7
Snuverink, M. (Marc) (1968) Friday 24 July 2026 WIN +10.6
Yahiaoui, Sihem (1555) Friday 24 July 2026 WIN +1.3
Heijer den, C.A. (Rolinde) (2147) Friday 24 July 2026 WIN +16.7
Ok, Miro (1770) Friday 24 July 2026 WIN +4.7
Wilgenhof, O. (Otto) (2069) Friday 24 July 2026 LOSS -10.9
Alssema, E. (Etien) (2093) Friday 24 July 2026 DRAW +2.4
FM Dessyn, Timothee (2072) Friday 24 July 2026 LOSS -10.8
Hylarides, C.R. (Charlie Ronald) (1750) Friday 24 July 2026 LOSS -20.8
Kruimer, M.H. (Matthias) (1959) Friday 24 July 2026 LOSS -14.7
Omar, Mawloud (1989) Friday 24 July 2026 LOSS -13.7
Snuverink, M. (Marc) (1968) Friday 24 July 2026 WIN +10.6