CChessStats

Sexto IRT SUB 1800 Club Cordillera 2025

Open SwissStandard

33 players participated in this 5-round tournament, held on 19 Oct 2025 in Santiago, Chile. Top 10 Elo average was 1726, and top seed was Matias Marc Bustamante Chavez (🇨🇱 CHI, 1791).

Alfonso Veloso Kustera (🇨🇱 CHI, 0) won with 5.0/5, ahead of Alonso Igna Valdebenito Barra (4.0) and Mateo Marxav Figueroa Estay (4.0). Veloso Kustera shared the lead from round 4 and broke clear in the final round.

The biggest upset came in round 3: Javier Alonso Mejia Mora (1470) beat Carlos Jose Manasevich Tolosa (1633), a +163-point gap.

Location
🇨🇱Santiago, Chile
Dates
19 Oct 2025
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 5 rounds
Top seed
Avg top 10
1,726
Participants
33
Federations · 1 represented
🇨🇱Chile×32
Top 3

How it unfolded

Top 6 · 5 rounds

Alfonso Veloso Kustera led from R5; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders
17
8
4
2
1
1.52.545R1R2R3R4R5
R5–R5 · LEAD HELD

Alfonso Veloso Kustera never relinquished the lead after R5; final gap +1.0 over the runner-up.

WIN STREAKS · 3 top finishers

Alfonso Veloso Kustera 5 wins (R1–R5)Mateo Marxav Figueroa Estay 3 wins (R1–R3)Alonso Igna Valdebenito Barra 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Veloso Kustera, Alfonso0CHI+23B+10N+9B+11N+2B5.013.015.015.0018160.0
2Valdebenito Barra, Alonso Igna1712CHI+30B+17N+12B+3B1N4.014.515.510.502399+21.4
3Figueroa Estay, Mateo Marxav1722CHI+21B+20N+4B2N+12B4.013.515.511.501868+35.6
4Seguel Caro, Andres1701CHI+29N+28B3N+6B+9B4.011.512.58.501836+29.2
5Valencia Oyarzun, Mario Jose0CHI10B+23N+28B+13N+11B4.011.012.09.0017270.0
6Tricot Wong, Francisco1666CHI+8B=7B+24N4N+19B3.513.515.59.751787+13.0
7Bustamante Chavez, Matias Marc1791CHI+31B=6N+10B9N+16B3.512.013.08.251814+3.6
8Coaguila Amesquita, Eduardo Enrique0CHI6N+31N+30B=16B+18N3.59.510.55.7516260.0
9Cuadros Betancur, Christian1758CHI+15N+14B1N+7B4N3.015.518.59.501849+9.6
10Araos Diaz, Constanza Paz1760CHI+5N1B7N+29B+22N3.014.515.57.001608-6.8
11Orrego Ahumada, Herman1714CHI+25N+16B+22N1B5N3.013.515.56.502319+20.4
12Pino Smythe, Maximiliano1635CHI+26N+24B2N+22B3N3.012.014.06.001606-4.0
13Albayay Albornoz, Benjamin1646CHI22N+29B+15N5B+26N3.011.012.06.002261+20.8
14Manasevich Tolosa, Carlos Jose1633CHI+32B9N21B+20N+23B3.09.59.54.501491-22.8
15Acevedo Gonzalez, Juan Pablo1496CHI9B+32N13B+28N+21B3.09.09.03.001500-0.4
16Nannig Buzeta, Cristobal1578CHI+27B11N+17B=8N7N2.512.514.56.25953-11.0
17Lincopi Bruch, Carlos Felipe0CHI+18N2B16N+24B=25N2.511.013.05.5016380.0
18Barra Otondo, Juan Jose1682CHI17B+30N=19B+21N8B2.510.511.54.251749+8.4
19Quezada Quijada, Sofia1517CHI24N+26B=18N+25B6N2.510.012.05.251554+5.6
20Acuna Rivera, Joaquin Emilio1620CHI+33N3B=25N14B+29N2.510.010.02.001472-32.0
21Mejia Mora, Javier Alonso1470CHI3N+33B+14N18B15N2.012.512.53.001441-6.4
22Rospigliossi Georger, Franco Alonso0CHI+13B+?N11B12N10B2.012.012.03.0016130.0
23Cadiz Vidal, Andres Felipe0CHI1N5B+33N+32B14N2.012.012.00.008330.0
24Balart Armendariz, Francisco1758CHI+19B12N6B17N+28B2.011.512.53.501481-44.0
25Zuniga Subiabre, Martin Ignacio1456CHI11B+27N=20B19N=17B2.010.512.54.501344-16.0
26Valdivieso Reyes, Juan Agustin0CHI12B19N+?B+31N13B2.09.59.51.0015340.0
27Marquez Belandria, Leonardo Jose0CHI16N25B29N+30N+31B2.06.57.52.0014200.0
28Gatica Cea, Carolina Ignacia0CHI+?B4N5N15B24N1.013.013.00.0014640.0
29Perez Rojas, Alonso1424CHI4B13N+27B10N20B1.012.514.52.00882-30.4
30Marchant Escobar, Leon1440CHI2N18B8N27B+32N1.012.012.00.00897-14.8
31Fernandez Caamano, Edison1561CHI7N8B+32N26B27N1.011.011.00.00992-8.4
32FIDE 3474895014N15B31B23N30B0.09.010.00.007330.0
33Bussenius Adolfssen, Sebastian0CHI20B21N23B?NF0.06.56.50.007870.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers