Format
AS
Alonso, Sergio
🇦🇷FIDE 172448· Male· Argentina· Born in 1967
Follow Sergio AlonsoTrack his monthly FIDE ratings, games, tournaments and more.
Sergio Alonso, a 59-year-old Argentine player, is rated 1837 — his current career high. He is on a breakout run, having gained +83 Elo over the past 12 months. 51 rated games in the past year (≈30/year long-term). Recent standard appearances include IRT Memorial Benito Villegas 2026, IRT ABIERTO CON LOS MAESTROS 2026 "CON EL GM ALAN PICHOT", and 75 Aniversario Torneo de Verano de Villa Ballester 2026. Also played 1 rapid (including IV TORNEO IRT RAPIDO HUMBERTO URIBE ADAMAS 2025) and 1 blitz events (including I TORNEO IRT BLITZ HUMBERTO URIBE ADAMAS 2025) recently. He had 2 career breaks: 25 months (2009–2011) and 14 months (2011–2012).
Current rating
1837
Standard
Rpd1835·Blz1789
All-time high
1837
at best
Mar 2026 · age 59
Mar 2026 · age 59
Activity
50
games / yr avg. · ≈4/mo
51 past 12 mo · ≈4/mo
classical only
Active
classical only
Active
Signature stat
#65,133
#65,133 · players worldwide · of 216,808
Career timeline
15 entries2026
49th Argentine 55-60 player
at age 59 · rated 1837
May 2026
Crossed 1800
at age 59
Mar 2026
All-time peak 1837
at age 59
Mar 2026
500 career games
at age 59
Mar 2026
2025
Best 12-month gain (+118 Elo)
1636 → 1754
Feb 2025
2020
42nd Argentine 50-55 player
at age 53 · rated 1734
Oct 2020
Standard rating history
Last 12 months — activity & highlights
Top opponent
Evolution
+83
1754 → 1837
Tournaments
10
63 games
Score
37.5/ 6359.5%
32W11D20L
Top 3 wins
2.[W]vsAlejandro Hernan Airoli1,951·75 Aniversario Torneo de Verano de Villa Ballester 2026·R7·+14.1
3.[W]vsMisael Alvarez Planxart1,924·IRT ABIERTO CON LOS MAESTROS 2026 "CON EL GM ALAN PICHOT"·R2·+12.5
Top 3 losses
Last 12 months — tournaments
10 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | Feb 2026 | 4/6 | #6 | 1873 | +12.8 |
Swiss | Feb 2026 | 3.5/4 | #14 | 2297 | +26.6 |
Open Swiss | Jan 2026 | 4.5/8 | #43 | 1989 | +47.4 |
Swiss | Jan 2026 | 4/5 | #11 | 2010 | +12.8 |
Open Swiss | Jan 2026 | 2.5/4 | #65 | 2021 | -11.6 |
Rankings
/
Argentina
#820
out of 3,279 players
Americas
#7,372
in continent
World
#65,133
out of 400,000+
National ranking
Europe & World
Europe
World
Argentina
| 1 | 🇦🇷Follow Diego FloresTrack their monthly FIDE ratings, games, tournaments and more. | 2,582 |
| 2 | 🇦🇷Follow Ruben FelgaerTrack their monthly FIDE ratings, games, tournaments and more. | 2,556 |
| 3 | 🇦🇷Follow Fernando PeraltaTrack their monthly FIDE ratings, games, tournaments and more. | 2,552 |
| 4 | 🇦🇷Follow Sandro MarecoTrack their monthly FIDE ratings, games, tournaments and more. | 2,546 |
| 4 | 🇦🇷Follow Tomas SosaTrack their monthly FIDE ratings, games, tournaments and more. | 2,546 |
| 6 | 🇦🇷Follow Federico Perez PonsaTrack their monthly FIDE ratings, games, tournaments and more. | 2,542 |
| 7 | 🇦🇷Follow Faustino OroTrack their monthly FIDE ratings, games, tournaments and more. | 2,528 |
| 8 | 🇦🇷Follow Pablo ZarnickiTrack their monthly FIDE ratings, games, tournaments and more. | 2,508 |
| 9 | 🇦🇷Follow Vitalii KiselevTrack their monthly FIDE ratings, games, tournaments and more. | 2,507 |
| 10 | 🇦🇷Follow Leonardo TristanTrack their monthly FIDE ratings, games, tournaments and more. | 2,490 |
| ... | ||
| 820 | 1,837 | |
Americas
| 1 | 🇺🇸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. | 2,788 |
| 3 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,754 |
| 4 | 🇺🇸Follow Leinier Dominguez PerezTrack their monthly FIDE ratings, games, tournaments and more. | 2,732 |
| 5 | 🇺🇸Follow Hans Moke NiemannTrack their monthly FIDE ratings, games, tournaments and more. | 2,728 |
| 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. | 2,718 |
| 8 | 🇺🇸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 |
| ... | ||
| 7372 | 1,837 | |
World
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,840 |
| 2 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 3 | 🇺🇸Follow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more. | 2,788 |
| 4 | 🇺🇿Follow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more. | 2,780 |
| 5 | 🇺🇿Follow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more. | 2,776 |
| 6 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 7 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 7 | 🇫🇷Follow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 9 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,754 |
| 10 | 🇨🇳Follow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| ... | ||
| 65133 | 1,837 | |