Player profile
Costa Sergio
Cercle d’échecs Philidor Dommeldange-Beggen asbl · LUX · SEN · ETR
- FLDE
- DOB039
- FIDE
- 4009681
- National
- 1681
- Standard
- Unrated
Rating history
Current rating snapshots
Activity
Current and previous Luxembourg season speed breakdown.
Recent classical games
10 games
| Event | Round | Opponent | Rating | Result |
|---|---|---|---|---|
| National Team Chess Championship 2025-20262026-03-01 | 8 | Alexander Golec | 1448 | 1 |
| National Team Chess Championship 2025-20262026-02-01 | 7 | Emmannuel Rault | 1526 | 1 |
| National Team Chess Championship 2025-20262026-01-11 | 6 | Sam Mersch | 1515 | 1 |
| National Team Chess Championship 2025-20262025-11-09 | 3 | Christos Christidis | 1526 | 1 |
| National Team Chess Championship 2024-20252024-11-24 | 4 | Anand Muralidharan | 1411 | 1 |
| National Team Chess Championship 2024-20252024-11-10 | 3 | Nikolaos Komninos | 2222 | 0 |
| National Team Chess Championship 2024-20252024-10-13 | 2 | Ben Warde-Jones | 1686 | 0 |
| National Team Chess Championship 2024-20252024-09-29 | 1 | Eric Adami | 1678 | 0 |
| National Team Chess Championship 2023-20242024-03-24 | 10 | Horia Maftei | 1258 | 1 |
| National Team Chess Championship 2023-20242024-02-25 | 8 | Lucas Téqui | 1459 | 0.5 |
Recent classical events
4 events
| Event | Date | Score | Games | Perf |
|---|---|---|---|---|
| National Team Chess Championship 2025-2026Luxembourg · LU | 2025-09-28 | 4/4 | 4 | 2304 |
| National Team Chess Championship 2024-2025Luxembourg · LU | 2024-09-29 | 1/4 | 4 | 1558 |
| National Team Chess Championship 2023-2024Luxembourg · LU | 2023-09-24 | 3.5/5 | 5 | 1427 |
| National Team Chess Championship 2022-2023Luxembourg · LU | 2022-09-25 | 1 |
Recent rapid and blitz events
0 events
| Event | Date | Score | Games | Perf |
|---|
Best performances
3 events
| Event | Date | Score | Games | Perf |
|---|---|---|---|---|
| National Team Chess Championship 2025-2026Luxembourg · LU | 2025-09-28 | 4/4 | 4 | 2304 |
| National Team Chess Championship 2024-2025Luxembourg · LU | 2024-09-29 | 1/4 | 4 | 1558 |
| National Team Chess Championship 2023-2024Luxembourg · LU | 2023-09-24 | 3.5/5 | 5 | 1427 |