Leonardo Costa vs Marius Deuer
Leonardo Costa (18, GM, GER) and Marius Deuer (18, GM, GER) have met 9 times in classical OTB. Costa leads the classical series 7–2 (0 draws). With current classical ratings of 2540 and 2490, the Elo model gives Costa a 50% chance of winning a classical game with white.
Head-to-Head Score
If they played today · Classical
Based on current Elo: 2540 vs 2490 (Δ +50)
With Leonardo Costa as white
50% Leonardo24% draw26% Marius
With Marius Deuer as white
38% Leonardo29% draw33% Marius
Estimate from Elo only · doesn't account for recent form, opening prep, or context.
Career Compare
| Leonardo Costa | Marius Deuer | |
|---|---|---|
| Current rating (STD) | 2540-16 | 2490 |
| Peak rating | 2556 · Apr 2026 | 2507 · Dec 2024 |
| Peak age | 18 | 16 |
| World rank now | #364 | #663 |
| World rank peak | #284 | #562 |
| Federation rank now | #17 | #33 |
| Games (career, STD) | 899 | 835 |
| Months active | 126 | 110 |
| % white wins | 46% | 50% |
| % black wins | 41% | 43% |
| TPR last 12m (STD) | 2520 | 2465 |
| Activity 12m (games) | 90 | 137 |
Best Win
Leonardo Costa
Marius Deuer
Highest-rated opponent ever beaten · STD primary, rapid/blitz for context
All Meetings (9)
Common Opponents
Tournaments Both Played
Cohort Position
Each player compared to active peers (same federation, ±75 Elo, played in last 12 months).
Leonardo Costa
Marius Deuer