Format
Mareco, Sandro
GM🇦🇷FIDE 112275· Male· Argentina· Born in 1987
Follow Sandro MarecoTrack his monthly FIDE ratings, games, tournaments and more.
Sandro Mareco, a 39-year-old Argentine Grandmaster, is rated 2546 and ranked 4th among Argentine players, and 334th worldwide. He has slipped back 39 Elo over the past 12 months. 52 rated games in the past year (≈75/year long-term). Recent standard appearances include Magistral Szmetan Giardelli 2025, Abierto Internacional del Valle Medio - Rio Negro, and ITT Fortuna Investimento Xadrez Total. Also played 2 rapid (including 9o Torneio Internacional de Xadrez SESC Caioba Rapido) and 5 blitz events (including Blitz IRT Szmetan - Giardelli) recently. He took a 17-month break between Apr 2004 and Oct 2005. His peak of 2666 was reached at age 32 (Mar 2019, World #78 at the time); he spent 16 months in the world top 100.
Awarded GM in 2010 (age 23) and IM in 2008 (age 21). At junior level, he reached World #68 in U20 and #5 and #3 nationally in U18 and U16.
Current rating
2546
Standard
Rpd2566·Blz2547
All-time high
2666
−120 pts below
Mar 2019 · age 32
Mar 2019 · age 32
Activity
57
games / yr avg. · ≈5/mo
52 past 12 mo · ≈4/mo
classical only
Active
classical only
Active
Signature stat
#4
#4 · Argentine players · of 2,437
16 months in World top 100 (2017–2022)
16 months in World top 100 (2017–2022)
Career timeline
24 entries2022
16 months in world top 100
since Mar 2017
Sep 2022
Re-crossed 2650
at age 35
Mar 2022
2019
Peak World rank: #78
at age 32 · rated 2666
Mar 2019
All-time peak 2666
at age 32 · −120 from today
Mar 2019
2018
Re-crossed 2650
at age 31
Oct 2018
2017
Re-crossed 2650
at age 30
Jun 2017
Standard rating history
Activity & highlights
Evolution
-39
2585 → 2546
Tournaments
5
41 games
Score
27/ 4165.9%
17W20D4L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
5 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Round-Robin | Dec 2025 | 4/9 | #7 | 2483 | -8.5 |
Open Swiss | Nov 2025 | 6/7 | #1 | 2410 | -0.4 |
Round-Robin | Oct 2025 | 5.5/9 | #2 | 2445 | -12.9 |
Round-Robin | Aug 2025 | 4.5/7 | #9 | 2574 | +1.2 |
Open Swiss | Jun 2025 | 7/9 | #7 | 2430 | -5.3 |
Most-Played Opponents
vsDiego FloresGM
🇦🇷ARG·2582
+9 −13 =21
43 games·last met Dec 2025
View head-to-head →
vsFederico Perez PonsaGM
🇦🇷ARG·2542
+12 −10 =16
38 games·last met Mar 2025
View head-to-head →
vsAndres Rodriguez VilaGM
🇺🇾URU·2422
+15 −8 =10
33 games·last met Jun 2025
View head-to-head →
vsAlan PichotGM
🇪🇸ESP·2581
+11 −3 =15
29 games·last met Oct 2023
View head-to-head →
vsSergio SlipakGM
🇦🇷ARG·2389
+12 −1 =10
23 games·last met Dec 2025
View head-to-head →
Rankings
/
Argentina
#4
out of 3,279 players
Americas
#43
in continent
World
#334
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 | 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 |
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 |
| ... | ||
| 43 | 2,546 | |
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 |
| ... | ||
| 334 | 2,546 | |