Prepare against Theodoros Matthaiou
GRC · World #63,183 classical · FIDE ID 42137438
When preparing against Theodoros Matthaiou, expect 1.e4 in 100% of White games. Against 1.e4 the reply is 1...e5 (80% of games); against 1.d4, 1...Nf6 (100%).
Our database contains 30 games by Theodoros Matthaiou, covering Jan 2024 to Oct 2026. Below you'll find Theodoros Matthaiou's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Theodoros Matthaiou before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 1,857 | 1,857 | Oct 2026 |
| Rapid | 1,818 | 1,818 | Oct 2026 |
| Blitz | 1,864 | 1,864 | Oct 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 30 | 12 | 4 | 14 | 40.0% |
| As White | 14 | 6 | 3 | 5 | 42.9% |
| As Black | 16 | 6 | 1 | 9 | 37.5% |
FIDE rated record
From FIDE's official rated-game ledger (2019-2026): 479 rated games against 343 different opponents, across 77 events in 1 countries. These counts cover FIDE-rated play only, so they differ from the database totals above.
By time control
| Format | Games | W | D | L | Win rate | Avg opp | Perf | Unbeaten |
|---|---|---|---|---|---|---|---|---|
| Classical | 193 | 88 | 32 | 73 | 45.6% | 1,661 | 1,646 | 9 |
| Rapid | 140 | 60 | 16 | 64 | 42.9% | 1,724 | 1,675 | 5 |
| Blitz | 122 | 52 | 14 | 56 | 42.6% | 1,764 | 1,720 | 8 |
Against the field
| Opposition | Games | W | D | L | Win rate |
|---|---|---|---|---|---|
| Against higher-rated | 274 | 77 | 33 | 164 | 28.1% |
| Against lower-rated | 116 | 73 | 24 | 19 | 62.9% |
Tournament wins
1 tournament win from 66 events.
Year by year
| Year | Games | W | D | L | Avg opp | Perf |
|---|---|---|---|---|---|---|
| 2026 | 172 | 75 | 28 | 69 | 1,792 | 1,784 |
| 2025 | 170 | 74 | 24 | 72 | 1,693 | 1,654 |
| 2024 | 110 | 51 | 9 | 50 | 1,640 | 1,563 |
| 2023 | 23 | 7 | 1 | 15 | 1,269 | 1,023 |
| 2019 | 4 | 1 | 2 | 1 | 1,307 | 1,107 |
Move-by-move preparation stats
Straight from the preparation tree built over all of Theodoros Matthaiou's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Theodoros Matthaiou's side.
First moves as White (11 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 11 | 100.0% | 40.9% |
Main lines as White
- 1.e4 — 100% of White games, 40.9% score
- …e5 (27% of these games) — Matthaiou usually continues Nf3 (50.0% score)
- …c5 (27% of these games) — Matthaiou usually continues Nf3 (50.0% score)
- …g6 (9% of these games) — Matthaiou usually continues d4 (0.0% score)
As Black against 1.e4 (10 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 8 | 80.0% | 37.5% |
| c5 | 2 | 20.0% | 25.0% |
As Black against 1.d4 (1 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 1 | 100.0% | 0.0% |
Theodoros Matthaiou's chess games
All 30 games by Theodoros Matthaiou in the Chess.ceo database (Jan 2024 - Oct 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 12 wins, 4 draws, 14 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B13 | Caro-Kann: Exchange Variation | 1 | 1/0/0 | 100.0% |
| C47 | Four Knights Game: Scotch Variation | 1 | 0/0/1 | 0.0% |
| C01 | French: Exchange Variation | 1 | 0/0/1 | 0.0% |
| B06 | Modern Defense | 1 | 0/0/1 | 0.0% |
| C60 | Ruy Lopez | 1 | 1/0/0 | 100.0% |
| C99 | Ruy Lopez: Closed | 1 | 0/1/0 | 0.0% |
| B01 | Scandinavian Defense: Main Line | 1 | 0/0/1 | 0.0% |
| B28 | Sicilian | 1 | 0/0/1 | 0.0% |
| B27 | Sicilian: Hyperaccelerated Dragon | 1 | 0/1/0 | 0.0% |
| B52 | Sicilian: Moscow Variation | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C54 | Italian Game: Classical Variation | 3 | 1/0/2 | 33.3% |
| A05 | Réti Opening: Symmetrical Defense | 2 | 2/0/0 | 100.0% |
| C54 | Italian Game: Giuoco Pianissimo | 1 | 0/0/1 | 0.0% |
| E61 | King's Indian Defense | 1 | 0/0/1 | 0.0% |
| E92 | King's Indian Defense: Orthodox Variation | 1 | 1/0/0 | 100.0% |
| C88 | Ruy Lopez: Closed | 1 | 0/0/1 | 0.0% |
| C77 | Ruy Lopez: Morphy Defense | 1 | 0/0/1 | 0.0% |
| B28 | Sicilian | 1 | 0/0/1 | 0.0% |
| C47 | Four Knights Game: Scotch Variation | 1 | 1/0/0 | 100.0% |
| B90 | Sicilian: Najdorf | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Aug 2026 | Nikolaos Paouris | 1,902 | 16th 'Papanastasio' Open Tournament 2026 | A Group | E92 |
| Sep 2026 | Vasileios Chompas | 1,860 | Other events in 33rd Open Tournament of Nikaia 2026 | 1st Fischer Random Blitz | ? |
| Mar 2026 | Iakov Bahar-Mosse | 1,828 | 3rd International Open Chess Tournament of Katerini GROUP B | A05 |
| Jul 2026 | Eleni Psarianou | 1,753 | Other events in Greek Youth U20 Individual Championships 2026 | Team Blitz 3x3 | E62 |
| Jul 2026 | Rafailia Efientzi | 1,727 | Other events in Greek Youth U20 Individual Championships 2026 | Blitz | C47 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Greek Youth U16 Individual Championship Finals 2026 | Open U16 | 2026 | 6 | 2 | 1,506 |
| Other events in Greek Youth U20 Individual Championships 2026 | Blitz | 2026 | 6 | 3 | 1,646 |
| Other events in 33rd Open Tournament of Nikaia 2026 | 1st Fischer Random Blitz | 2026 | 5 | 3 | 1,813 |
| Other events in Greek Youth U20 Individual Championships 2026 | Team Blitz 3x3 | 2026 | 5 | 2.5 | 1,800 |
| 16th 'Papanastasio' Open Tournament 2026 | A Group | 2026 | 4 | 1.5 | 1,858 |
| ch-GRE U14 | 2024 | 1 | 0 | 1,316 |
| 2nd July Rapid Chess Square 2026 | 2026 | 1 | 1 | 1,959 |
| 33rd Open Tournament of Nikaia 2026 | Group A | 2026 | 1 | 0 | 1,895 |
Interactive opening tree from all 30 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Theodoros Matthaiou's chess games?
30 games by Theodoros Matthaiou, from Jan 2024 to Oct 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Theodoros Matthaiou has played.
What does Theodoros Matthaiou play on the first move as White?
Across 11 games with White in our database, Theodoros Matthaiou opens with 1.e4 (100% of games). Against 1.e4 as Black, Theodoros Matthaiou answers 1...e5 (80% of games), 1...c5 (20% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Theodoros Matthaiou play as White?
As White, Theodoros Matthaiou's most-played openings in our database are: Caro-Kann: Exchange Variation (1 games, 100.0% win rate); Four Knights Game: Scotch Variation (1 games, 0.0% win rate); French: Exchange Variation (1 games, 0.0% win rate). The full breakdown of 14 games with White is in the table above.
What openings does Theodoros Matthaiou play as Black?
As Black, Theodoros Matthaiou most often plays: Italian Game: Classical Variation (3 games, 33.3% win rate); Réti Opening: Symmetrical Defense (2 games, 100.0% win rate); Italian Game: Giuoco Pianissimo (1 games, 0.0% win rate). See the table above for the top ten Black openings across 16 games.
What is Theodoros Matthaiou's FIDE rating?
Theodoros Matthaiou is currently rated 1,857 in classical chess, 1,818 in rapid and 1,864 in blitz. Peak classical rating: 1,857 (Oct 2026).
How many games has Theodoros Matthaiou played?
Our database contains 30 games by Theodoros Matthaiou, covering Jan 2024 to Oct 2026. Overall record: 12 wins, 4 draws, 14 losses (40.0% win rate).
How do I prepare against Theodoros Matthaiou?
30 games by Theodoros Matthaiou reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.