Torneo de primera categoria 2025 - El Mundo del Ajedrez
10 players participated in this 9-round tournament, held from 05 Dec 2025 to 14 Dec 2025 in Comodoro Rivadavia - Chubut, Argentina. 1 titled players. Top 10 Elo average was 1693, and top seed was Andres Aguilar (🇦🇷 ARG, FM, 2238).
Andres Aguilar (🇦🇷 ARG, FM, 2238) won with 8.0/9, ahead of Maximiliano Aguinaga (7.5) and German Harriet (6.0). Aguilar took the lead from round 5.
The biggest upset came in round 8: Marcelo Anacaya (1786) beat German Harriet (1908), a +122-point gap.
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How it unfolded
Top 10 · 9 roundsFM Andres Aguilar led from R5 onwards, the runner-up race stayed tight.
FM Andres Aguilar takes the sole lead (4.5/5).
FM Andres Aguilar drew with Maximiliano Aguinaga (Black).
FM Andres Aguilar 5 wins (R2–R6)Maximiliano Aguinaga 7 wins (R2–R9)Adrian Hernan Muruchi Machaca 4 wins (R1–R4)
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 🇦🇷FMAguilar, Andres | 2238 | * | ½ | 1 | 1 | ½ | 1 | 1 | 1 | 1 | 1 | 8.0 | 29.50 | 36.0 | +1.4 | 2235 |
| 1 | 🇦🇷Aguinaga, Maximiliano | 2186 | ½ | * | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | 7.5 | 32.50 | 36.5 | +16.8 | 2321 |
| 4 | 🇦🇷Harriet, German | 1908 | 0 | 0 | * | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 6.0 | 17.00 | 38.0 | +13.0 | 1977 |
| 3 | 🇦🇷Muruchi Machaca, Adrian Hernan | 1912 | 0 | 0 | 0 | * | 1 | 1 | 1 | 1 | 1 | 1 | 6.0 | 16.50 | 38.0 | +24.0 | 1976 |
| 5 | 🇦🇷Anacaya, Marcelo | 1786 | ½ | 0 | 1 | 0 | * | 0 | 1 | 1 | 1 | 1 | 5.5 | 16.50 | 38.5 | +27.8 | 1934 |
| 6 | 🇦🇷Alonso, Sergio | 1731 | 0 | 0 | 0 | 0 | 1 | * | ½ | 1 | 1 | 1 | 4.5 | 10.25 | 39.5 | +18.2 | 1841 |
| 7 | 🇦🇷Quinteros, Omar | 1816 | 0 | 0 | 0 | 0 | 0 | ½ | * | 1 | 1 | 1 | 3.5 | 5.25 | 40.5 | -18.2 | 1750 |
| 8 | 🇦🇷Musumeci, Ricardo | 1696 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | * | 1 | 1 | 2.0 | 1.00 | 42.0 | -19.2 | 1553 |
| 9 | 🇦🇷Pettinari, Ricardo | 1658 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | * | 1 | 1.0 | 0.00 | 43.0 | -103.6 | 1084 |
| 10 | FIDE 20067844 | 0 | 0 | — | 0 | 0 | 0 | 0 | 0 | 0 | 0 | * | 0.0 | 0.00 | 44.0 | 0.0 | 1047 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Anacaya, MarceloARG+27.85.5 pts · #5
- 2Muruchi Machaca, Adrian HernanARG+24.06.0 pts · #3
- 3Alonso, SergioARG+18.24.5 pts · #6
- 1Pettinari, RicardoARG-103.61.0 pts · #9
- 2Musumeci, RicardoARG-19.22.0 pts · #8
- 3Quinteros, OmarARG-18.23.5 pts · #7
- R8+122 Elo gap