Prepare against Conor O`Donnell
FM · Ireland · World #4,725 classical · FIDE ID 2504243
Our database contains 47 games by Conor O`Donnell, covering Nov 2011 to Jul 2026. Below you'll find Conor O`Donnell's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Conor O`Donnell 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 | 2,281 | 2,395 | Jun 2018 |
| Rapid | 2,182 | 2,233 | Oct 2014 |
| Blitz | 2,195 | 2,258 | Apr 2019 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 47 | 15 | 19 | 13 | 31.9% |
| As White | 23 | 9 | 8 | 6 | 39.1% |
| As Black | 24 | 6 | 11 | 7 | 25.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Conor O`Donnell's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Conor O`Donnell's side.
First moves as White (23 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 20 | 87.0% | 50.0% |
| e4 | 2 | 8.7% | 100.0% |
| Nf3 | 1 | 4.3% | 100.0% |
Main lines as White
- 1.d4 — 87% of White games, 50.0% score
- …Nf6 (45% of these games) — O`Donnell usually continues c4 (44.4% score)
- …d5 (35% of these games) — O`Donnell usually continues c4 (64.3% score)
- …e6 (10% of these games) — O`Donnell usually continues c4 (0.0% score)
- 1.e4 — 9% of White games, 100.0% score
- …e6 (50% of these games) — O`Donnell usually continues d4 (100.0% score)
- …c5 (50% of these games) — O`Donnell usually continues Nc3 (100.0% score)
As Black against 1.e4 (12 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c6 | 8 | 66.7% | 68.8% |
| c5 | 3 | 25.0% | 83.3% |
| e5 | 1 | 8.3% | 0.0% |
As Black against 1.d4 (9 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 6 | 66.7% | 25.0% |
| Nf6 | 3 | 33.3% | 33.3% |
Conor O`Donnell's chess games
All 47 games by Conor O`Donnell in the Chess.ceo database (Nov 2011 - Jul 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: 15 wins, 19 draws, 13 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D30 | Catalan | 4 | 0/3/1 | 0.0% |
| D11 | Slav Defense | 3 | 2/1/0 | 66.7% |
| E73 | King's Indian Defense: Averbakh System | 2 | 2/0/0 | 100.0% |
| D35 | Indian Defense | 2 | 0/1/1 | 0.0% |
| B06 | Modern Defense | 2 | 0/1/1 | 0.0% |
| A90 | Horwitz Defense | 2 | 1/0/1 | 50.0% |
| E21 | Nimzo-Indian Defense | 1 | 1/0/0 | 100.0% |
| D31 | Queen's Gambit Declined | 1 | 0/1/0 | 0.0% |
| B23 | Sicilian: Closed | 1 | 1/0/0 | 100.0% |
| C02 | French: Advance Variation | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D35 | Indian Defense | 6 | 0/2/4 | 0.0% |
| B12 | Caro-Kann: Advance Variation | 4 | 1/3/0 | 25.0% |
| B13 | Caro-Kann: Exchange Variation | 2 | 1/1/0 | 50.0% |
| E42 | Nimzo-Indian: Rubinstein System | 2 | 1/0/1 | 50.0% |
| C43 | Petrov's Defense | 1 | 0/0/1 | 0.0% |
| D50 | Queen's Gambit Declined | 1 | 0/1/0 | 0.0% |
| A06 | Réti Opening | 1 | 0/1/0 | 0.0% |
| B67 | Sicilian | 1 | 0/1/0 | 0.0% |
| B30 | Sicilian: Rossolimo | 1 | 1/0/0 | 100.0% |
| B21 | Sicilian: Smith-Morra Gambit | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Nov 2025 | Jon Viktor Gunnarsson | 2,434 | TCh-ISL Kvika 2025-26 | B11 |
| Jan 2025 | David Henry Maycock Bates | 2,286 | 4NCL 2024-25 | A13 |
| May 2025 | Harry Li | 2,247 | 4NCL 2024-25 | B12 |
| Aug 2025 | Shane Melaugh | 2,180 | 104th ch-IRL | C10 |
| Feb 2026 | Hayk Mesropyan | 2,146 | 4NCL 2025-26 | B30 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| TCh-ISL Kvika 2025-26 | 2026 | 10 | 2.5 | 2,240 |
| 104th ch-IRL | 2025 | 9 | 6.5 | 2,310 |
| 4NCL 2024-25 | 2025 | 9 | 6 | 2,396 |
| 4NCL 2025-26 | 2026 | 7 | 4.5 | 2,309 |
| FIDE World Rapid Team | 2025 | 5 | 2.5 | 2,157 |
| 104th ch-IRL TB RR | 2025 | 4 | 1.5 | 2,085 |
| London Classic Masters | 2024 | 3 | 1 | 2,073 |
Interactive opening tree from all 47 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Conor O`Donnell's chess games?
47 games by Conor O`Donnell, from Nov 2011 to Jul 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 Conor O`Donnell has played.
What does Conor O`Donnell play on the first move as White?
Across 23 games with White in our database, Conor O`Donnell opens with 1.d4 (87% of games), 1.e4 (9% of games), 1.Nf3 (4% of games). Against 1.e4 as Black, Conor O`Donnell answers 1...c6 (67% of games), 1...c5 (25% of games), 1...e5 (8% of games). Against 1.d4: 1...d5 (67% of games), 1...Nf6 (33% of games).
What openings does Conor O`Donnell play as White?
As White, Conor O`Donnell's most-played openings in our database are: Catalan (4 games, 0.0% win rate); Slav Defense (3 games, 66.7% win rate); King's Indian Defense: Averbakh System (2 games, 100.0% win rate). The full breakdown of 23 games with White is in the table above.
What openings does Conor O`Donnell play as Black?
As Black, Conor O`Donnell most often plays: Indian Defense (6 games, 0.0% win rate); Caro-Kann: Advance Variation (4 games, 25.0% win rate); Caro-Kann: Exchange Variation (2 games, 50.0% win rate). See the table above for the top ten Black openings across 24 games.
What is Conor O`Donnell's FIDE rating?
Conor O`Donnell is currently rated 2,281 in classical chess, 2,182 in rapid and 2,195 in blitz. Peak classical rating: 2,395 (Jun 2018).
How many games has Conor O`Donnell played?
Our database contains 47 games by Conor O`Donnell, covering Nov 2011 to Jul 2026. Overall record: 15 wins, 19 draws, 13 losses (31.9% win rate).
How do I prepare against Conor O`Donnell?
47 games by Conor O`Donnell 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.