Sebastian Castillo Chavarria
CRC · FIDE ID 6519890 · 24 tournament games since 2024
Standard
1716
#139 in CRC (active)
Rapid
1526
#366 in CRC (active)
Blitz
1784
#131 in CRC (active)
Score
38%
8 W · 2 D · 14 L
Opp. avg
1805
Last 24 games
Last game
2026-01-22
JDN Costa Rica 2026 Clásico | U20AbsEquip
Prep summary
- As White: 1.Nf3 in 43% of games (scores 25%), otherwise 1.b3 (29%).
- Against 1.e4: 1...c5 in 5 of 5 games (Sicilian Defense), scoring 60%.
- Weak spot: Nimzo-Larsen Attack: Classical Variation as White, only 0% in 3 games.
- By opponent strength: 33% against higher-rated players, 50% against lower-rated.
- By colour: 29% with White, 50% with Black.
Based on 24 over-the-board games (8 blitz · 4 classical). 14 with White (29%), 10 with Black (50%).
Openings as White
First move
| 1.Nf3 | 6 | 25% |
| 1.b3 | 4 | 25% |
| 1.f4 | 3 | 50% |
| 1.e4 | 1 | 0% |
Most played
| Opening | Games | Score |
|---|---|---|
| Nimzo-Larsen Attack: Classical Variation | 3 | 0% |
| Nimzo-Larsen Attack: Modern Variation | 3 | 33% |
| Bird Opening: Dutch Variation | 3 | 50% |
| Zukertort Opening: Quiet System | 2 | 50% |
| Nimzo-Larsen Attack: Indian Variation | 1 | 0% |
Openings as Black
Against 1.e4 (5 games)
| 1...c5 Sicilian Defense | 5 | 60% |
Against 1.d4 (1 game)
| 1...Nf6 Indian Defense | 1 | 100% |
Most played
| Opening | Games | Score |
|---|---|---|
| King's Indian Attack | 1 | 0% |
| Sicilian Defense: Closed | 1 | 100% |
| Sicilian Defense: Chekhover Variation | 1 | 100% |
| King's Indian Defense: Orthodox Variation | 1 | 0% |
| Sicilian Defense: Najdorf Variation, Zagreb Variation | 1 | 0% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-01-22 | Caleb Vargas Arguedas (2098) JDN Costa Rica 2026 Clásico | U20AbsEquip | L |
| 2026-01-20 | Esteban Quesada Fallas (1824) JDN Costa Rica 2026 Blitz | U20AbsEquip | L |
| 2026-01-20 | Esteban Quesada Fallas (1824) JDN Costa Rica 2026 Blitz | U20AbsEquip | L |
| 2026-01-20 | Josymar Redondo Washington (1758) JDN Costa Rica 2026 Blitz | U20AbsEquip | W |
| 2026-01-20 | Emmanuel de Jesus Rojas Vindas (1948) JDN Costa Rica 2026 Blitz | U20AbsEquip | L |
| 2026-01-08 | Martin Eduardo Barboza Viquez (1727) JDN Costa Rica 2026 Rapido | U20AbsEquip | L |
| 2026-01-07 | Martin Eduardo Barboza Viquez (1727) JDN Costa Rica 2026 Rapido | U20AbsEquip | W |
| 2025-12-31 | David Gabriel Orna Chaves (1602) XLVI Metropolitano Torneo Internacional|Metropolitano Blitz · blitz | L |
| 2025-12-30 | Emmanuel de Jesus Rojas Vindas (1948) XLVI Metropolitano Torneo Internacional|Metropolitano Blitz · blitz | L |
| 2025-12-30 | Juan Diego Coto Calderon (1809) XLVI Metropolitano Torneo Internacional|Metropolitano B · classical | L |
Data: FIDE rating list (October 2026 list; national ranks count active players) and tournament games broadcast on Lichess since 2020 (open data, CC0). Results are matched to FIDE players by name or FIDE ID and may be incomplete. This page shows public chess results only. Is this you and you want the page removed? Email chessmoose1@gmail.com and we remove it.