Format
CC
Castillo Chavarria, Sebastian
🇨🇷FIDE 6519890· Male· Costa Rica· Born in 2007
Follow Sebastian Castillo ChavarriaTrack his monthly FIDE ratings, games, tournaments and more.
Sebastian Castillo Chavarria, a 19-year-old player, is rated 1716. He has slipped back 32 Elo over the past 12 months. 33 rated games in the past year. Recent standard appearances include I Abierto Guanacasteco Santa Cruz 2026, II Torneo Abierto Memorial Luis Araya Araya 2026, and Juegos Deportivos Nacionales 2026 Standard U20 Equipo Absoluto. Also played 1 rapid and 4 blitz events (including XLVI Metropolitano Torneo Internacional 2025 Blitz) recently. His peak of 1769 was reached at age 18 (Feb 2025); he also reached #93 nationally in Jul 2025.
At junior level, he reached #10, #7 and #16 nationally in U20, U18 and U16.
Current rating
1716
Standard
Rpd1509·Blz1770
All-time high
1769
−53 pts below
Feb 2025 · age 18
Feb 2025 · age 18
Activity
37
games / yr avg. · ≈3/mo
26 past 12 mo · ≈2/mo
classical only
Active
classical only
Active
Signature stat
#104,163
#104,163 · players worldwide · of 218,279
Career timeline
13 entries2026
100 career games
at age 19
Mar 2026
10th U20 player nationally
at age 19 · rated 1722
Feb 2026
K-factor lowered to 20
at age 19
Jan 2026
2025
Peak national rank: #93
at age 18 · rated 1748
Jul 2025
7th U18 player nationally
at age 18 · rated 1769
Feb 2025
All-time peak 1769
at age 18 · −53 from today
Feb 2025
Standard rating history
Peak
FIDE title
Threshold
First rated
FIDE recal.
Activity & highlights
Top opponent
Evolution
-32
1748 → 1716
Tournaments
5
32 games
Score
17.5/ 3254.7%
15W5D12L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
5 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Open Swiss | May 2026 | 6/4 | #3 | 2445 | +15.4 |
Open Swiss | Apr 2026 | 3/5 | #49 | 1785 | -10.4 |
Team | Jan 2026 | 0/4 | #15 | — | -10.4 |
Open Swiss | Dec 2025 | 5/9 | #32 | 1703 | -4.0 |
Team | Sep 2025 | 3.5/4 | #14 | 2050 | -23.2 |
Worst Elo result: Juegos Deportivos Nacionales Eliminatorias 2025 U20 Equipos Absoluto (-23.2 Elo, finished #14).
Most-Played Opponents
vsEmmanuel de Jesus Rojas Vindas
🇨🇷CRC·1819
+0 −7 =2
9 games·last met Jan 2026
View head-to-head →
vsEsteban Quesada Fallas
🇨🇷CRC·2072
+1 −6 =0
7 games·last met Apr 2026
View head-to-head →
vsMartin Eduardo Barboza ViquezCM
🇨🇷CRC·2011
+1 −4 =2
7 games·last met Jan 2026
View head-to-head →
vsCaleb Vargas Arguedas
🇨🇷CRC·2035
+1 −4 =0
5 games·last met Jan 2026
View head-to-head →
vsSantiago Ulloa Jimenez
🇨🇷CRC·1833
+0 −4 =1
5 games·last met Jan 2026
View head-to-head →
Rankings
/
Costa Rica
#130
out of 682 players
Americas
#12,424
in continent
World
#104,160
out of 400,000+
National ranking
Europe & World
Europe
World
Costa Rica
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| ... | ||
| 130 | 1,716 | |
Americas
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| 1 | 🇺🇸Follow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
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| 5 | 🇺🇸Follow Leinier Dominguez PerezTrack their monthly FIDE ratings, games, tournaments and more. | 2,732 |
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| ... | ||
| 12424 | 1,716 | |
World
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| 2 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
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| 8 | 🇮🇳Follow Erigaisi ArjunTrack their monthly FIDE ratings, games, tournaments and more. | 2,761 |
| 9 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
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| ... | ||
| 104160 | 1,716 | |