Prepare against Fiona Mars
France · World #59,560 classical · FIDE ID 36023167
Our database contains 32 games by Fiona Mars, covering Aug 2013 to Jul 2026. Below you'll find Fiona Mars's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Fiona Mars 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 | 1,858 | 1,883 | Apr 2025 |
| Rapid | 1,852 | 1,852 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 32 | 11 | 8 | 13 | 34.4% |
| As White | 15 | 8 | 4 | 3 | 53.3% |
| As Black | 17 | 3 | 4 | 10 | 17.6% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Fiona Mars's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Fiona Mars's side.
First moves as White (15 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf3 | 12 | 80.0% | 66.7% |
| e4 | 2 | 13.3% | 50.0% |
| d4 | 1 | 6.7% | 100.0% |
Main lines as White
- 1.Nf3 — 80% of White games, 66.7% score
- …Nf6 (50% of these games) — Mars usually continues e3 (40.0% score)
- …d5 (33% of these games) — Mars usually continues e3 (87.5% score)
- …c5 (8% of these games) — Mars usually continues c4 (50.0% score)
- 1.e4 — 13% of White games, 50.0% score
- …c5 (100% of these games) — Mars usually continues d4 (50.0% score)
As Black against 1.e4 (7 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 3 | 42.9% | 50.0% |
| d5 | 2 | 28.6% | 25.0% |
| g6 | 2 | 28.6% | 50.0% |
As Black against 1.d4 (7 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 5 | 71.4% | 30.0% |
| d5 | 1 | 14.3% | 0.0% |
| c5 | 1 | 14.3% | 0.0% |
Fiona Mars's chess games
All 32 games by Fiona Mars in the Chess.ceo database (Aug 2013 - 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: 11 wins, 8 draws, 13 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A48 | Réti Opening | 5 | 2/1/2 | 40.0% |
| D05 | Indian Defense | 4 | 4/0/0 | 100.0% |
| D04 | Colle System | 2 | 0/2/0 | 0.0% |
| B13 | English Opening: Symmetrical | 1 | 0/1/0 | 0.0% |
| A13 | English Opening | 1 | 1/0/0 | 100.0% |
| B86 | Sicilian: Scheveningen | 1 | 0/0/1 | 0.0% |
| B22 | Sicilian: Smith-Morra Gambit | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B76 | Modern Defense | 2 | 1/0/1 | 50.0% |
| D85 | Grünfeld Defense | 2 | 0/0/2 | 0.0% |
| A55 | Indian Defense | 2 | 1/1/0 | 50.0% |
| A11 | English Opening: Slav Setup | 1 | 0/0/1 | 0.0% |
| C62 | Four Knights Game: Scotch Variation | 1 | 1/0/0 | 100.0% |
| B07 | Hungarian Opening | 1 | 0/0/1 | 0.0% |
| D40 | Queen's Gambit Declined | 1 | 0/0/1 | 0.0% |
| B07 | Queen's Pawn Game | 1 | 0/0/1 | 0.0% |
| B01 | Scandinavian Defense: Main Line | 1 | 0/1/0 | 0.0% |
| B01 | Scandinavian Defense: Modern Variation | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jun 2015 | Andreea Navrotescu | 2,370 | Saint Jacut Lallemand Memorial w | D35 |
| Jul 2017 | Romain Billotti | 1,828 | 8th Vaujany Open B | D05 |
| Jul 2016 | Sedrani Ammar | 1,818 | Salon de Provence Open 7th | B22 |
| Jul 2017 | Xavier De Muyser | 1,751 | 8th Vaujany Open B | C62 |
| Jul 2017 | Noah Sesia | 1,723 | 8th Vaujany Open B | D05 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Bremen Silvester Open | 2019 | 7 | 3 | 1,712 |
| 8th Vaujany Open B | 2017 | 7 | 5.5 | 1,979 |
| Salon de Provence Open 7th | 2016 | 6 | 2 | 1,736 |
| 6th Prague Summer Open B | 2019 | 6 | 3.5 | 1,836 |
| ch-FRA U18 Girls | 2017 | 4 | 0 | 1,566 |
| ch-FRA U16 Girls | 2015 | 1 | 0 | 1,485 |
| Saint Jacut Lallemand Memorial w | 2015 | 1 | 1 | 2,770 |
Interactive opening tree from all 32 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Fiona Mars's chess games?
32 games by Fiona Mars, from Aug 2013 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 Fiona Mars has played.
What does Fiona Mars play on the first move as White?
Across 15 games with White in our database, Fiona Mars opens with 1.Nf3 (80% of games), 1.e4 (13% of games), 1.d4 (7% of games). Against 1.e4 as Black, Fiona Mars answers 1...e5 (43% of games), 1...d5 (29% of games), 1...g6 (29% of games). Against 1.d4: 1...Nf6 (71% of games), 1...d5 (14% of games), 1...c5 (14% of games).
What openings does Fiona Mars play as White?
As White, Fiona Mars's most-played openings in our database are: Réti Opening (5 games, 40.0% win rate); Indian Defense (4 games, 100.0% win rate); Colle System (2 games, 0.0% win rate). The full breakdown of 15 games with White is in the table above.
What openings does Fiona Mars play as Black?
As Black, Fiona Mars most often plays: Modern Defense (2 games, 50.0% win rate); Grünfeld Defense (2 games, 0.0% win rate); Indian Defense (2 games, 50.0% win rate). See the table above for the top ten Black openings across 17 games.
What is Fiona Mars's FIDE rating?
Fiona Mars is currently rated 1,858 in classical chess, 1,852 in rapid. Peak classical rating: 1,883 (Apr 2025).
How many games has Fiona Mars played?
Our database contains 32 games by Fiona Mars, covering Aug 2013 to Jul 2026. Overall record: 11 wins, 8 draws, 13 losses (34.4% win rate).
How do I prepare against Fiona Mars?
32 games by Fiona Mars 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.