Prepare against Michael Mortensen
CM · Norway · World #12,714 classical · FIDE ID 1580515
When preparing against Michael Mortensen, expect 1.Nf3 in 84% of White games. Against 1.e4 the reply is 1...c5 (83% of games); against 1.d4, 1...Nf6 (100%). Lowest win rate among frequent openings: Réti Opening as White, 39.1% over 23 games.
Our database contains 100 games by Michael Mortensen, covering Sep 2023 to Aug 2026. Below you'll find Michael Mortensen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Michael Mortensen 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 | 2,132 | 2,198 | May 2026 |
| Rapid | 1,955 | 2,064 | Jan 2026 |
| Blitz | 2,079 | 2,083 | Feb 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 100 | 38 | 10 | 52 | 38.0% |
| As White | 48 | 21 | 5 | 22 | 43.8% |
| As Black | 52 | 17 | 5 | 30 | 32.7% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Michael Mortensen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Michael Mortensen's side.
First moves as White (44 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf3 | 37 | 84.1% | 47.3% |
| d4 | 7 | 15.9% | 50.0% |
Main lines as White
- 1.Nf3 — 84% of White games, 47.3% score
- …Nf6 (38% of these games) — Mortensen usually continues e3 (35.7% score)
- …d5 (30% of these games) — Mortensen usually continues e3 (45.5% score)
- …c5 (16% of these games) — Mortensen usually continues e3 (66.7% score)
- 1.d4 — 16% of White games, 50.0% score
- …d5 (57% of these games) — Mortensen usually continues c4 (62.5% score)
- …Nf6 (43% of these games) — Mortensen usually continues c4 (33.3% score)
As Black against 1.e4 (24 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 20 | 83.3% | 27.5% |
| e5 | 3 | 12.5% | 33.3% |
As Black against 1.d4 (15 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 15 | 100.0% | 50.0% |
Michael Mortensen's chess games
All 100 games by Michael Mortensen in the Chess.ceo database (Sep 2023 - Aug 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: 38 wins, 10 draws, 52 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A05 | Réti Opening | 23 | 9/2/12 | 39.1% |
| A04 | Colle System | 7 | 4/0/3 | 57.1% |
| A04 | English Opening: Slav Setup | 2 | 1/1/0 | 50.0% |
| A04 | Modern Defense | 2 | 2/0/0 | 100.0% |
| A05 | Indian Defense | 2 | 0/1/1 | 0.0% |
| D43 | Semi-Slav Defense | 2 | 1/0/1 | 50.0% |
| E10 | Indian Defense: Anti-Nimzo-Indian | 1 | 0/0/1 | 0.0% |
| A04 | Dutch Defense | 1 | 0/0/1 | 0.0% |
| D41 | English Opening | 1 | 0/0/1 | 0.0% |
| A61 | Benoni Defense | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A50 | Indian Defense | 10 | 4/1/5 | 40.0% |
| B54 | Sicilian | 5 | 3/0/2 | 60.0% |
| B70 | Sicilian: Dragon | 4 | 0/0/4 | 0.0% |
| B52 | Sicilian: Moscow Variation | 3 | 0/0/3 | 0.0% |
| B47 | Sicilian: Taimanov | 3 | 0/1/2 | 0.0% |
| C78 | Ruy Lopez: Morphy Defense | 3 | 0/2/1 | 0.0% |
| E15 | Queen's Indian Defense | 2 | 0/0/2 | 0.0% |
| A04 | Réti Opening | 2 | 0/0/2 | 0.0% |
| A45 | Queen's Pawn Game | 2 | 2/0/0 | 100.0% |
| B23 | Sicilian: Closed | 2 | 0/0/2 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| May 2026 | Samdanov,S | 2,294 | Titled Tue 19th May 2026 | A06 |
| Jul 2026 | Balaji,Aaravamudhan | 2,285 | Titled Tue 7th Jul 2026 | A04 |
| Jul 2026 | Lazaro Azcutia,Miguel | 2,260 | Titled Tue 21st Jul 2026 | A06 |
| Jun 2026 | Terryn,Ezra | 2,246 | Norway Chess Open June | D43 |
| May 2026 | Kopczynski,M | 2,225 | Titled Tue 19th May 2026 | — |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2026 | 55 | 23 | 2,124 |
| 1st 3-0 Thu 9th Jul 2026 | 2026 | 11 | 4 | 1,969 |
| Det åpne NM i hurtigsjakk | 2026 | 10 | 5.5 | 1,967 |
| 1st 3-0 Thu 21st May 2026 | 2026 | 9 | 4 | 2,078 |
| NM Fischersjakk (Freestyle) 2026 | 2026 | 8 | 4.5 | 2,002 |
| Norway Chess Open June | 2026 | 4 | 1.5 | 2,182 |
| Karlstad Open | 2024 | 1 | 0 | 1,871 |
| Landsturneringen 2026 | Junior A | 2026 | 1 | 0 | 1,734 |
Interactive opening tree from all 100 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Michael Mortensen's chess games?
100 games by Michael Mortensen, from Sep 2023 to Aug 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 Michael Mortensen has played.
What does Michael Mortensen play on the first move as White?
Across 44 games with White in our database, Michael Mortensen opens with 1.Nf3 (84% of games), 1.d4 (16% of games). Against 1.e4 as Black, Michael Mortensen answers 1...c5 (83% of games), 1...e5 (13% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Michael Mortensen play as White?
As White, Michael Mortensen's most-played openings in our database are: Réti Opening (23 games, 39.1% win rate); Colle System (7 games, 57.1% win rate); English Opening: Slav Setup (2 games, 50.0% win rate). The full breakdown of 48 games with White is in the table above.
What openings does Michael Mortensen play as Black?
As Black, Michael Mortensen most often plays: Indian Defense (10 games, 40.0% win rate); Sicilian (5 games, 60.0% win rate); Sicilian: Dragon (4 games, 0.0% win rate). See the table above for the top ten Black openings across 52 games.
What is Michael Mortensen's FIDE rating?
Michael Mortensen is currently rated 2,132 in classical chess, 1,955 in rapid and 2,079 in blitz. Peak classical rating: 2,198 (May 2026).
How many games has Michael Mortensen played?
Our database contains 100 games by Michael Mortensen, covering Sep 2023 to Aug 2026. Overall record: 38 wins, 10 draws, 52 losses (38.0% win rate).
How do I prepare against Michael Mortensen?
100 games by Michael Mortensen 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.