Prepare against John E Duggan
United Kingdom · World #24,090 classical · FIDE ID 423726
Our database contains 66 games by John E Duggan, covering Sep 2011 to Jul 2026. Below you'll find John E Duggan's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout John E Duggan 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 | 2,024 | 2,174 | Dec 2012 |
| Rapid | 2,128 | 2,160 | Feb 2024 |
| Blitz | 2,131 | 2,135 | May 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 66 | 21 | 24 | 21 | 31.8% |
| As White | 31 | 10 | 13 | 8 | 32.3% |
| As Black | 35 | 11 | 11 | 13 | 31.4% |
Move-by-move preparation stats
Straight from the preparation tree built over all of John E Duggan's games — the same tree the interactive prep board lets you walk to any depth. Scores are from John E Duggan's side.
First moves as White (31 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 31 | 100.0% | 53.2% |
Main lines as White
- 1.d4 — 100% of White games, 53.2% score
- …Nf6 (45% of these games) — Duggan usually continues Nf3 (45.8% score)
- …d5 (35% of these games) — Duggan usually continues Nf3 (57.1% score)
- …f5 (16% of these games) — Duggan usually continues g3 (66.7% score)
As Black against 1.e4 (14 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 11 | 78.6% | 59.1% |
| c6 | 2 | 14.3% | 0.0% |
| d5 | 1 | 7.1% | 0.0% |
As Black against 1.d4 (10 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 6 | 60.0% | 33.3% |
| e6 | 4 | 40.0% | 50.0% |
John E Duggan's chess games
All 66 games by John E Duggan in the Chess.ceo database (Sep 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: 21 wins, 24 draws, 21 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D36 | Indian Defense | 8 | 4/4/0 | 50.0% |
| D11 | Slav Defense | 6 | 1/4/1 | 16.7% |
| A81 | Dutch Defense | 5 | 3/0/2 | 60.0% |
| A45 | Queen's Pawn Game | 3 | 2/0/1 | 66.7% |
| D04 | Colle System | 2 | 0/1/1 | 0.0% |
| E62 | King's Indian Defense: Fianchetto Variation | 2 | 0/0/2 | 0.0% |
| E10 | Indian Defense: Anti-Nimzo-Indian | 1 | 0/1/0 | 0.0% |
| D20 | Queen's Gambit Accepted | 1 | 0/1/0 | 0.0% |
| D34 | Queen's Gambit Declined | 1 | 0/1/0 | 0.0% |
| D76 | Indian Defense: Tartakower Attack | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A09 | English Opening | 4 | 1/1/2 | 25.0% |
| C03 | French: Tarrasch Variation | 4 | 2/1/1 | 50.0% |
| A85 | Horwitz Defense | 3 | 0/2/1 | 0.0% |
| B00 | French Defense | 3 | 1/2/0 | 33.3% |
| E26 | Nimzo-Indian: Sämisch Variation | 2 | 2/0/0 | 100.0% |
| C01 | French: Exchange Variation | 2 | 0/2/0 | 0.0% |
| A25 | English Opening: Reverse Sicilian | 2 | 1/0/1 | 50.0% |
| E12 | Queen's Indian Defense | 2 | 0/0/2 | 0.0% |
| C11 | French: Classical Variation | 1 | 0/1/0 | 0.0% |
| C02 | French: Advance Variation | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Nov 2018 | Graham J Moore | 2,240 | chT2a-BCF 1819 (4NCL) | A46 |
| Aug 2011 | Dereque Kelley | 2,203 | 112th US Open | A45 |
| Jan 2020 | Paul Talsma | 2,163 | chT2a-BCF 1920 (4NCL) | E26 |
| Mar 2020 | James L Hanley | 2,161 | chT2a-BCF 1920 (4NCL) | C03 |
| Mar 2023 | Thomas Villiers | 2,160 | chT2-BCF 2223 (4NCL) | D05 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| chT-BCF 2122 (4NCL) | 2022 | 9 | 5 | 2,139 |
| chT2-BCF 2223 (4NCL) | 2023 | 9 | 4.5 | 2,152 |
| 4NCL Div 2 2024-25 | 2025 | 9 | 5.5 | 2,107 |
| chT2-BCF 2324 (4NCL) | 2024 | 8 | 3 | 1,885 |
| 115th US Open | 2014 | 8 | 4.5 | 2,203 |
| 4NCL Div 2 2025-26 | 2026 | 5 | 2.5 | 1,998 |
| chT2a-BCF 1819 (4NCL) | 2019 | 5 | 2 | 2,067 |
| BCF-chT2 1819 (4NCL) Demotion | 2019 | 4 | 1.5 | 2,028 |
Interactive opening tree from all 66 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find John E Duggan's chess games?
66 games by John E Duggan, from Sep 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 John E Duggan has played.
What does John E Duggan play on the first move as White?
Across 31 games with White in our database, John E Duggan opens with 1.d4 (100% of games). Against 1.e4 as Black, John E Duggan answers 1...e6 (79% of games), 1...c6 (14% of games), 1...d5 (7% of games). Against 1.d4: 1...Nf6 (60% of games), 1...e6 (40% of games).
What openings does John E Duggan play as White?
As White, John E Duggan's most-played openings in our database are: Indian Defense (8 games, 50.0% win rate); Slav Defense (6 games, 16.7% win rate); Dutch Defense (5 games, 60.0% win rate). The full breakdown of 31 games with White is in the table above.
What openings does John E Duggan play as Black?
As Black, John E Duggan most often plays: English Opening (4 games, 25.0% win rate); French: Tarrasch Variation (4 games, 50.0% win rate); Horwitz Defense (3 games, 0.0% win rate). See the table above for the top ten Black openings across 35 games.
What is John E Duggan's FIDE rating?
John E Duggan is currently rated 2,024 in classical chess, 2,128 in rapid and 2,131 in blitz. Peak classical rating: 2,174 (Dec 2012).
How many games has John E Duggan played?
Our database contains 66 games by John E Duggan, covering Sep 2011 to Jul 2026. Overall record: 21 wins, 24 draws, 21 losses (31.8% win rate).
How do I prepare against John E Duggan?
66 games by John E Duggan 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.