CChessStats

II FESTIVAL DE AJEDREZ ENROQUE OSORNINO IV FUTUROS MAESTROS SUB 1800

Open SwissStandard

30 players participated in this 5-round tournament, held on 09 Nov 2025 in Osorno, Chile. Top 10 Elo average was 1715, and top seed was Valeria Melin Contreras (🇨🇱 CHI, 1785).

Jose Sebastian Meza Alarcon (🇨🇱 CHI, 1727) won with 4.5/5, ahead of Freddy Bohm Alarcon (4.5) and Alexis Antonio Gonzalez Asenjo (4.0). Meza Alarcon shared the lead from round 4, winning on tie-break.

The biggest upset came in round 1: Martin Gabriel Sotomayor Sotomayor (1572) beat Valeria Melin Contreras (1785), a +213-point gap.

Location
🇨🇱Osorno, Chile
Dates
09 Nov 2025
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 5 rounds
Top seed
🇨🇱Valeria Melin Contreras1785
Avg top 10
1,715
Participants
30
Federations · 1 represented
🇨🇱Chile×25
Top 3

How it unfolded

Top 6 · 5 rounds

Tight race until R5; 2 players tied at 4.5/5, decided on Buchholz. Title race narrowed from 3 co-leaders at R4 to 2 at the finish.

Co-leaders
13
3
2
3
2
1.52.545R1R2R3R4R5
Meza Alarcon4.5Bohm Alarcon4.5Gonzalez Asenjo4Vernier3.5Ruiz Aguilar3.5Gonzalez Vargas3.5
R5 · TIEBREAK CLUSTER

2 players finish on 4.5/5. Meza Alarcon takes the title on Buchholz Cut1 (12.5).

WIN STREAKS · 3 top finishers

Jose Sebastian Meza Alarcon 4 wins (R2–R5)Freddy Bohm Alarcon 3 wins (R1–R3)Alexis Antonio Gonzalez Asenjo 3 wins (R3–R5)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Jose Sebastian Meza Alarcon*——
1
2Freddy Bohm Alarcon—*
1
½
3Alexis Antonio Gonzalez Asenjo—
0
*—
4Matthieu Pierre Vernier
0
½
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Meza Alarcon, Jose Sebastian1727CHI=11N+9B+16N+10B+4N4.512.515.013.501995+27.4
2Bohm Alarcon, Freddy1681CHI+23B+3N+26N=4B+8B4.512.013.011.251965+21.0
3Gonzalez Asenjo, Alexis Antonio1619CHI+17N−2B+21N+22B+12N4.012.013.59.001812+40.4
4Vernier, Matthieu Pierre1719CHI+29B+6N+12B=2N−1B3.515.516.59.751768+5.0
5Ruiz Aguilar, Felipe Gabriel1667CHI+14N=10B+22N=6B=7N3.513.014.59.501789+24.4
6Gonzalez Vargas, Leonardo Enrique1625CHI+19B−4B+15N=5N+18B3.512.014.08.751727+22.0
7San Martin Rojas, Jorge1653CHI+28N=22B=9N+26B=5B3.59.010.06.001662+1.2
8Angulo Delgado, Aaron Ignacio1729CHI+20N−12B+11N+14B−2N3.013.515.58.001583-31.6
9Sotomayor Sotomayor, Martin Gabriel1572CHI+13B−1N=7B=18N+21B3.013.015.07.751724+38.4
10Diaz Brebi, Martin1767CHI+24B=5N+18B−1N=13B3.013.014.56.751747-3.6
11Diaz Rosas, David Alonso1495CHI=1B=13N−8B+23N+19B3.012.514.07.251625+17.6
12Coronado, Nelson1659CHI+25B+8N−4N+20B−3B3.012.514.06.501643-1.4
13Melin Contreras, Valeria1785CHI−9N=11B+24N+16B=10N3.011.513.07.001658-14.8
14Solis Ramirez, Andre Exequiel Emilio0CHI−5B+24N+27B−8N+20N3.010.011.04.5016070.0
15Schulz Rodriguez, Pedro Enrique1448CHIF+19N−6B+28B+26N3.07.57.54.00826-5.4
16Vera Olguin, Jaime1580CHI+30B=18N−1B−13N+27B2.510.510.52.001594+0.8
17FIDE 34888020—−3B−23N=25B+30N+22N2.58.58.52.2516740.0
18Bohm Roman, Martina Eloisa1683CHI+21N=16B−10N=9B−6N2.012.014.04.751521-43.2
19Arredondo Rubilar, Alonso Joaquin0CHI−6N−15B+29B+25N−11N2.011.012.02.507230.0
20Acevedo Gonzalez, Juan Pablo1521CHI−8B+25N+23B−12N−14B2.010.512.03.00898-9.8
21Caceres Monroy, Josefa Hanan1409CHI−18B+30N−3B+27N−9N2.010.010.01.001410-0.4
22Ojeda Soto, Marco1728CHI+27B=7N−5B−3N−17B1.513.514.52.751531-21.8
23FIDE 34887720—−2N+17B−20N−11B=24N1.512.013.53.2512230.0
24Veliz Nunez, Vicente Alberto1532CHI−10N−14B−13B+29N=23B1.510.511.51.75977-13.6
25Mena Salazar, Josefa Victoria0CHI−12N−20B=17N−19B+28N1.59.510.52.257790.0
26FIDE 34888100—F+29N−2B−7N−15B1.012.012.01.007940.0
27Schafer Cordova, Daniel Alejandro1520CHI−22N+28B−14N−21B−16N1.09.010.01.00772-52.8
28FIDE 34835500—−7B−27N+30B−15N−25B1.09.09.00.007420.0
29Perez Cardenas, Martin Eluney1435CHI−4N−26B−19N−24B+30N1.08.08.00.008120.0
30FIDE 34860950—−16N−21B−28N−17B−29B0.08.09.00.006940.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets