CChessStats

IRT Sub 1800 Aniversario Paillaco

Open SwissStandard

23 players participated in this 5-round tournament, held on 18 Oct 2025 in Paillaco, Chile. Top 10 Elo average was 1672, and top seed was Cristian Antonio Navarrete Zambrano (🇨🇱 CHI, 1747).

Matthieu Pierre Vernier (🇨🇱 CHI, 1694) won with 4.0/5, ahead of Alison Herrera Catrilef (4.0) and Aaron Ignacio Angulo Delgado (4.0). Vernier took the lead from round 4, winning on tie-break.

Location
🇨🇱Paillaco, Chile
Dates
18 Oct 2025
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 5 rounds
Avg top 10
1,672
Participants
23
Federations · 1 represented
🇨🇱Chile×21
Top 3

How it unfolded

Top 6 · 5 rounds

Tight race until R4; 3 players tied at 4.0/5, decided on Buchholz.

Co-leaders
10
4
1
1
3
1.52.545R1R2R3R4R5Vernier takes lead
Vernier4Herrera Catrilef4Angulo Delgado4Bravo Nail3.5Toro Medina3.5Araneda Alcaino3
R4 · LEADER CHANGE18 Oct

Matthieu Pierre Vernier takes the sole lead (3.5/4).

R5 · TIEBREAK CLUSTER

3 players finish on 4.0/5. Vernier takes the title on Buchholz Cut1 (13.5).

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Matthieu Pierre Vernier drew with Alison Herrera Catrilef (Black).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Matthieu Pierre Vernier*
½
—
½
2Alison Herrera Catrilef
½
*—
½
3Aaron Ignacio Angulo Delgado——*—
4Tomas Osvaldo Alejand Bravo Nail
½
½
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Vernier, Matthieu Pierre1694CHI+11N+13B=2N+6B=4N4.013.516.012.251896+24.8
2Herrera Catrilef, Alison1668CHI+21B+9N=1B=4B+6N4.013.513.59.751877+51.6
3Angulo Delgado, Aaron Ignacio1673CHI+17N+19B−6N+8B+12N4.011.012.09.001838+39.2
4Bravo Nail, Tomas Osvaldo Alejand1710CHI=14B+15N+7B=2N=1B3.513.515.510.251758+9.6
5Toro Medina, Mathias Alexander1627CHI+23N−6B+11N+15B=7N3.511.011.06.501657+2.6
6Hernandez Olave, Angelo1689CHI+16B+5N+3B−1N−2B3.015.517.59.501714+6.8
7Alvarado Lillo, Sebastian Eduardo1718CHI+12N=10B−4N+9N=5B3.013.016.09.251709-2.4
8Araneda Alcaino, Arturo Nicolas1626CHI−15B+14N+16B−3N+13B3.011.013.07.001803+35.6
9Araneda Wolnitzky, Andres Nestor1608CHI+22N−2B+17N−7B+18B3.011.011.04.001582-5.6
10Barria Otey, Oscar Bairon1660CHI+18N=7N=13B−12B+15N3.010.512.56.751596-6.6
11Contreras Gonzalez, Cristobal Tomas1559CHI−1B+18N−5B+22N+19B3.010.510.53.001584+4.8
12Calderon Cayun, Cesar Edmundo1580CHI−7B+21N+22B+10N−3B3.010.010.03.001634+11.6
13Paredes Santana, Jeremias Andres1652CHI+20B−1N=10N+14B−8N2.512.513.55.001551-22.8
14Lara Martinez, Gabriel Nehemias1569CHI=4N−8B+21N−13N+16B2.511.011.03.751603+8.8
15Rezzio Aravena, Javier Sebastian0CHI+8N−4B+19N−5N−10B2.013.014.04.0015700.0
16Salazar Torres, Gabriel1531CHI−6N+23B−8N+20B−14N2.09.59.51.00829-45.6
17Neguiman Osses, Agustina Ignacia1506CHI−3B+20N−9B−19N+23B2.09.09.01.00821-41.6
18Vasquez Navarrete, Franco Daniel1430CHI−10B−11B+23N+21B−9N2.09.09.00.001384-9.2
19Guerrero Obando, Antu Martin1582CHIF−3N−15B+17B−11N1.011.011.02.001456-20.0
20Solis Ramirez, Andre Exequiel Emilio0CHI−13N−17BF−16N+22B1.06.56.50.007680.0
21Vera Quijon, Pedro Anibal1481CHI−2N−12B−14B−18NF0.011.511.50.00762-62.4
22FIDE 34884110—−9BF−12N−11B−20N0.010.010.00.007830.0
23FIDE 34755300—−5B−16N−18BF−17N0.09.59.50.007280.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers