Players
Thomas Beerdsen
Photo: Dominik Töpfer
GM

Thomas Beerdsen

NetherlandsBorn 1998 (age 28)FIDE ID 1030108

Luft classical

24002500260027002023202420252026
Monthly Luft ratings, now 2506
FIDE

FIDE classical

220024002600201620182020202220242026
Monthly FIDE ratings, now 2514
Luft

Flair

Thomas Beerdsen's classical flairs

0 of 19 earned over the last 12 months

  • TitanLuft classical rating averaging 2800+ over the last 4 years
  • Serial WinnerWon 2+ elite events in the last 12 months
  • UnderdogRegularly beats players rated 50+ higher
  • Fortress25+ games in a row without a loss
  • Black BeltDoes better with black than with white
  • IronmanPlayed 50+ games over the last 12 months
  • RisingAged 18 or under, Luft rating up 40+ over the last 12 months
  • Endgame SpecialistEndgame 90+: converting, saving and not throwing endgames
  • TacticianTactics 90+: sharp, tactical games they made sharp
  • LightningTop 20 at speed chess (mostly blitz, some rapid)
  • Hot StreakAt least 6 points from 7 straight games against strong opposition
  • SignatureSticks to one defence with black far more than most
  • ChameleonPlays a wide range of defences with black
  • WildcardBrilliant one event, off the next: hard to predict
  • ReliableConsistent across all top events
  • FighterRarely draws, and wins far more than they lose
  • AdaptableTactics and Positional both 90+
  • PositionalPositional 90+: slow, quiet games they steered
  • PodiumTop 3 in at least half of their elite events

No classical flair in the last year yet.

Trophy cabinet

No classical titles on record yet.

Attributes

Tactics 77Positional 73Endgame 74Openings 72Composure 76Defence 79Speed 70Consistency 75

Luft classical rating

2506No. 266

From 11 classical games in top events over the last year, playing at a 2499 level.

ResultsPlayed at a 2499 level, blended with their FIDE rating−2
Tournament winsNone in the last year0
FormThe last 3 months against the whole year0
ConsistencyHow steady they are from event to event0
Activity11 classical games in top events−6

Openings

Their most-played, from 49 classical games in top events over the last 4 years

OpeningGamesScore
Sicilian Defense1050%
French Defense367%
Italian Game317%
Petrov's Defense275%
Caro-Kann Defense250%

Sicilian Defense

With White: 10 games, won 3, drew 4, lost 3 · 50%

VariationGamesScore
Najdorf Variation317%
Nyezhmetdinov-Rossolimo Attack275%
French Variation275%
Richter-Rauzer Variation1100%
Dragon Variation150%
Four Knights Variation10%

French Defense

With White: 3 games, won 2, drew 0, lost 1 · 67%

VariationGamesScore
Classical Variation1100%
Rubinstein Variation1100%
Wing Gambit10%

Italian Game

With White: 3 games, won 0, drew 1, lost 2 · 17%

VariationGamesScore
Classical Variation225%
Scotch Invitation Declined10%

Petrov's Defense

With White: 2 games, won 1, drew 1, lost 0 · 75%

VariationGamesScore
Nimzowitsch Attack275%

Caro-Kann Defense

With White: 2 games, won 1, drew 0, lost 1 · 50%

VariationGamesScore
Maróczy Variation1100%
Advance Variation10%

Slav Defense

With Black: 5 games, won 0, drew 1, lost 4 · 10%

VariationGamesScore
Quiet Variation413%
Breyer Variation10%

Sicilian Defense

With Black: 4 games, won 1, drew 1, lost 2 · 38%

VariationGamesScore
Moscow Variation1100%
Scheveningen Variation150%
Taimanov Variation10%
Four Knights Variation10%

Queen's Pawn Game

With Black: 2 games, won 1, drew 1, lost 0 · 75%

VariationGamesScore
Accelerated London System1100%
Symmetrical Variation150%

Ruy Lopez

With Black: 2 games, won 1, drew 1, lost 0 · 75%

VariationGamesScore
Berlin Defense275%

Italian Game

With Black: 2 games, won 0, drew 0, lost 2 · 0%

VariationGamesScore
Classical Variation10%
Giuoco Pianissimo10%

Recent events

See all
EventPlace+/−+/−
Prague International Chess Festival 20266 Mar 20264/9−1−2
Isle of Wight Chess Tournament 202620 Feb 2026½/2−5−5
Dutch Championships 20258 Jul 20251/2+5+5
German Bundesliga 2024/2523 Mar 20254/9+5+9
Prague International Chess Festival 20257 Mar 20253½/5+8+11

Best wins

OpponentRating
GMM. Bluebaum21 Oct 2023 · Bundesliga 2023/242658
GMB. Gledura26 Feb 2026 · Prague International Chess Festival 20262652
GMV. Ivic27 Jan 2023 · Tata Steel Challengers 20232585
GMS. Ganguly25 Feb 2026 · Prague International Chess Festival 20262568
GMS. Zilka23 Mar 2025 · German Bundesliga 2024/252525

Most played

OpponentGamesWDL
GME. L'AmiLast 23 Feb 2024 · Bundesliga 2023/242002
GMA. KorobovLast 22 Mar 2025 · German Bundesliga 2024/252011
GMP. MichalikLast 14 Jan 2024 · Bundesliga 2023/242002
GMJ. van ForeestLast 8 Jul 2025 · Dutch Championships 20252020
GMV. IvicLast 27 Jan 2023 · Tata Steel Challengers 20231100

Compare Luft

GMThomas BeerdsenNetherlands

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How attributes are calculated

From their games in top events over the last 12 months, each judged against the opponent's rating

  • TacticsHow well they score in sharp games they chose to make sharp.
  • PositionalHow well they score in quiet, manoeuvring games they steered.
  • EndgameHow they do in endgames against what the position promised when it began: converting a winning one earns a little, saving a losing one earns a lot, and throwing a winning one costs a lot.
  • OpeningsThe engine's verdict on their position around moves 15 to 20, against what's normal for that colour, as the score it points to. Over the last 4 years, with older games counting less.
  • ComposureHow well they score under pressure: the game straight after a loss, and the last 3 games of an event while they can still win it. Over the last 4 years.
  • DefenceHow they do in games where they were 0.8 pawns or more worse after move 18, against what that position usually scores: holding the draw earns, turning it around earns more, and losing costs a little.
  • SpeedTheir Luft rapid and blitz ratings. With neither, an estimate a little below their classical level.
  • ConsistencyTheir Luft rating, less their off days: tournaments (5+ games each) over the last 4 years where they played 50+ below it. Anything better never counts against them.

  • "How well they score" is a performance rating: the opponent's rating, plus 400 for a win and minus 400 for a loss, averaged. So it's always judged against who they played.

    The score out of 100: 80 is a 2600 level, and each 13 rating points adds one, so 2860 and up is 100.

    Fair to everyone: with only a few games of a kind, the result leans towards their overall Luft rating. Strengths and weaknesses are measured against their overall level and compared with the top 100, so a specialist's best side stands out. A little recent form is added to all but Speed.