Format
SF
Serrano Fonseca, Rachel Nicole
🇨🇷FIDE 6556221· Female· Costa Rica· Born in 2015
Follow Rachel Nicole Serrano FonsecaTrack her monthly FIDE ratings, games, tournaments and more.
Rachel Nicole Serrano Fonseca, a 11-year-old player, is rated 1430. She has slipped back 47 Elo over the past 12 months. 15 rated games in the past year (≈16/year long-term). Recent standard appearances include XV Campeonato Panamericano U7 - U17 de Ajedrez 2026 U11 Femenino, Campeonato Nacional Categorias Menores Pares 2026 U12 Femenino, and Juegos Deportivos Nacionales 2026 Standard U12 Equipo Femenino. Also played 1 rapid and 2 blitz events (including XLVI Metropolitano Torneo Internacional 2025 Blitz) recently. Her peak of 1576 was reached at age 10 (Feb 2025).
At junior level, she reached #17 and #1 nationally in U12 and U10.
Current rating
1430
Standard
Rpd—·Blz1454
All-time high
1576
−146 pts below
Feb 2025 · age 10
Feb 2025 · age 10
Activity
15
games / yr avg. · ≈1/mo
15 past 12 mo · ≈1/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#210,337
#210,337 · players worldwide · of 218,279
Career timeline
7 entries2026
17th U12 player nationally
at age 11 · rated 1488
Feb 2026
2025
1st U10 player nationally
at age 10 · rated 1576
Feb 2025
Crossed 1500
at age 10
Feb 2025
Crossed 1400
at age 10
Feb 2025
Crossed 1200
at age 10
Feb 2025
All-time peak 1576
at age 10 · −146 from today
Feb 2025
Standard rating history
Peak
FIDE title
Threshold
First rated
Activity & highlights
Best result
XV Campeonato Panamericano U7 - U17 de Ajedrez 2026 U11 Femeninoperf 1668 (+238) · 4/6 · #17
Top opponent
Evolution
+30
1400 → 1430
Tournaments
5
52 games
Score
19/ 5236.5%
23W11D18L
Top 3 wins
2.[W]vsSalome Gallego Rodriguez1,509·XV Campeonato Panamericano U7 - U17 de Ajedrez 2026 U11 Femenino·R2·+24.5
Top 3 losses
1.[L]vsElena Fernandez MayorgaWCM1,414·Campeonato Nacional Categorias Menores Pares 2026 U12 Femenino·R3·-20.5
2.[L]vsJarely Katty Rojas Raraz1,452·XV Campeonato Panamericano U7 - U17 de Ajedrez 2026 U11 Femenino·R3·-18.7
3.[L]vsLuis Guillermo Solano Monge1,512·IV Festival de Divisiones ADAS Cuarta Division 2025·R3·-18.0
Last 12 months — tournaments
5 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | May 2026 | 4/6 | #17 | 1668 | -6.0 |
Open Swiss | Feb 2026 | 4/1 | #5 | 2298 | -11.2 |
Team | Jan 2026 | 3.5/1 | #7 | — | +31.6 |
Swiss | Nov 2025 | 3/3 | #96 | 2336 | -52.0 |
Open Swiss | Jun 2025 | 4.5/3 | #3 | 2299 | +30.0 |
Rankings
/
Costa Rica
#525
out of 682 players
Americas
#24,768
in continent
World
#210,030
out of 400,000+
National ranking
Europe & World
Europe
World
Costa Rica
| 1 | 🇨🇷Follow Bernal Gonzalez AcostaTrack their monthly FIDE ratings, games, tournaments and more. | 2,453 |
| 2 | 🇨🇷Follow Sebastian MihajlovTrack their monthly FIDE ratings, games, tournaments and more. | 2,372 |
| 3 | 🇨🇷Follow Emmanuel Jimenez GarciaTrack their monthly FIDE ratings, games, tournaments and more. | 2,349 |
| 4 | 🇨🇷Follow Sergio Minero PinedaTrack their monthly FIDE ratings, games, tournaments and more. | 2,330 |
| 5 | 🇨🇷Follow Leonardo Valdes RomeroTrack their monthly FIDE ratings, games, tournaments and more. | 2,326 |
| 6 | 🇨🇷Follow Alfonso Jose Alfaro RojasTrack their monthly FIDE ratings, games, tournaments and more. | 2,316 |
| 7 | 🇨🇷Follow Sergio Duran VegaTrack their monthly FIDE ratings, games, tournaments and more. | 2,268 |
| 8 | 🇨🇷Follow Alexis Murillo TsijliTrack their monthly FIDE ratings, games, tournaments and more. | 2,263 |
| 9 | 🇨🇷Follow David Alejandro Cabezas SolanoTrack their monthly FIDE ratings, games, tournaments and more. | 2,252 |
| 10 | 🇨🇷Follow Sebastian Angulo PerezTrack their monthly FIDE ratings, games, tournaments and more. | 2,182 |
| ... | ||
| 525 | 1,430 | |
Americas
| 1 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 1 | 🇺🇸Follow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 3 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| 4 | 🇺🇸Follow Hans Moke NiemannTrack their monthly FIDE ratings, games, tournaments and more. | 2,742 |
| 5 | 🇺🇸Follow Leinier Dominguez PerezTrack their monthly FIDE ratings, games, tournaments and more. | 2,732 |
| 6 | 🇺🇸Follow Levon AronianTrack their monthly FIDE ratings, games, tournaments and more. | 2,724 |
| 7 | 🇺🇸Follow Awonder LiangTrack their monthly FIDE ratings, games, tournaments and more. | 2,696 |
| 7 | 🇺🇸Follow Samuel SevianTrack their monthly FIDE ratings, games, tournaments and more. | 2,696 |
| 9 | 🇺🇸Follow Jeffery XiongTrack their monthly FIDE ratings, games, tournaments and more. | 2,656 |
| 10 | 🇺🇸Follow Ray RobsonTrack their monthly FIDE ratings, games, tournaments and more. | 2,653 |
| ... | ||
| 24768 | 1,430 | |
World
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,841 |
| 2 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 2 | 🇺🇸Follow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 4 | 🇺🇿Follow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more. | 2,777 |
| 4 | 🇺🇿Follow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more. | 2,777 |
| 6 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 7 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,764 |
| 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 |
| 9 | 🇨🇳Follow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| ... | ||
| 210030 | 1,430 | |