CChessStats

IV Grand Prix Categoria A Chanco 2025

Round-RobinStandard

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.

Location
🇨🇱Chanco, Chile
Dates
06 Dec 2025 → 08 Dec 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Round-robin · 7 rounds
Top seed
🇨🇱FMWalter Cuevas Araya2056
Avg top 10
2,005
Participants
7
Titled players · 2
FM×2
Federations · 1 represented
🇨🇱Chile×7
Top 3

How it unfolded

Top 7 · 7 rounds

Bastian Chavez Dinamarca led from R5 onwards, the runner-up race stayed tight.

Co-leaders
3
1
1
1
1
3
1
#1#2#4#7R1R2R3R4R5R6R7Chavez Dinamarca takes lead
R5 · LEADER CHANGE07 Dec

Bastian Chavez Dinamarca takes the sole lead (3.0/5).

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Bastian Chavez Dinamarca beat Andres Lagos Inostroza (Black).

R2–R7 · UNBEATEN

Bastian Chavez Dinamarca went unbeaten across 5 games (R2–R7).

Cross-table

#PlayerElo1234567PtsSBBhΔ EloPerf
1🇨🇱Chavez Dinamarca, Bastian2056*101½½14.011.5017.0+10.22122
2🇨🇱Lagos Inostroza, Andres20040*0111½3.59.2517.5+10.22062
4🇨🇱FMCuevas Araya, Walter205611*½00½3.010.2518.0-10.01996
3🇨🇱Sanhueza Ortiz, Gonzalo195800½*11½3.07.7518.0+9.02013
6🇨🇱Rebolledo Arias, Julio Cesar1952½010*012.57.5018.5+0.21957
7🇨🇱FMCaceres Vasquez, Sergio2008½0101*02.57.5018.5-10.61948
5🇨🇱Constanzo Vivanco, Mario Felipe20000½½½01*2.57.2518.5-9.01949

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
IV Grand Prix Categoria A Chanco 2025 — Chanco, Chile | Chess Tournament Results | ChessStats