IV Grand Prix Categoria A Chanco 2025
7 players participated in this 7-round tournament, held from 06 Dec 2025 to 08 Dec 2025 in Chanco, Chile. 2 titled players. Top 10 Elo average was 2005, and top seed was Walter Cuevas Araya (🇨🇱 CHI, FM, 2056).
Bastian Chavez Dinamarca (🇨🇱 CHI, 2056) won with 4.0/7, ahead of Andres Lagos Inostroza (3.5) and Walter Cuevas Araya (3.0). Chavez Dinamarca took the lead from round 5.
The biggest upset came in round 2: Julio Cesar Rebolledo Arias (1952) beat Walter Cuevas Araya (FM, 2056), a +104-point gap.
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How it unfolded
Top 7 · 7 roundsBastian Chavez Dinamarca led from R5 onwards, the runner-up race stayed tight.
Bastian Chavez Dinamarca takes the sole lead (3.0/5).
Bastian Chavez Dinamarca beat Andres Lagos Inostroza (Black).
Bastian Chavez Dinamarca went unbeaten across 5 games (R2–R7).
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇨🇱Chavez Dinamarca, Bastian | 2056 | * | 1 | 0 | 1 | ½ | ½ | 1 | 4.0 | 11.50 | 17.0 | +10.2 | 2122 |
| 2 | 🇨🇱Lagos Inostroza, Andres | 2004 | 0 | * | 0 | 1 | 1 | 1 | ½ | 3.5 | 9.25 | 17.5 | +10.2 | 2062 |
| 4 | 🇨🇱FMCuevas Araya, Walter | 2056 | 1 | 1 | * | ½ | 0 | 0 | ½ | 3.0 | 10.25 | 18.0 | -10.0 | 1996 |
| 3 | 🇨🇱Sanhueza Ortiz, Gonzalo | 1958 | 0 | 0 | ½ | * | 1 | 1 | ½ | 3.0 | 7.75 | 18.0 | +9.0 | 2013 |
| 6 | 🇨🇱Rebolledo Arias, Julio Cesar | 1952 | ½ | 0 | 1 | 0 | * | 0 | 1 | 2.5 | 7.50 | 18.5 | +0.2 | 1957 |
| 7 | 🇨🇱FMCaceres Vasquez, Sergio | 2008 | ½ | 0 | 1 | 0 | 1 | * | 0 | 2.5 | 7.50 | 18.5 | -10.6 | 1948 |
| 5 | 🇨🇱Constanzo Vivanco, Mario Felipe | 2000 | 0 | ½ | ½ | ½ | 0 | 1 | * | 2.5 | 7.25 | 18.5 | -9.0 | 1949 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Lagos Inostroza, AndresCHI+10.23.5 pts · #2
- 2Chavez Dinamarca, BastianCHI+10.24.0 pts · #1
- 3Sanhueza Ortiz, GonzaloCHI+9.03.0 pts · #3
- 1Caceres Vasquez, SergioFMCHI-10.62.5 pts · #7
- 2Cuevas Araya, WalterFMCHI-10.03.0 pts · #4
- 3Constanzo Vivanco, Mario FelipeCHI-9.02.5 pts · #5
- R2+104 Elo gap