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II FESTIVAL DE AJEDREZ ENROQUE OSORNINO GRAND PRIX SUB 2400-1801

Open SwissStandard

24 players participated in this 6-round tournament, held from 08 Nov 2025 to 09 Nov 2025 in Osorno, Chile. 4 titled players from 2 federations. Top 10 Elo average was 2127, and top seed was Hugo Lopez Silva (🇨🇱 CHI, IM, 2383).

Marlies Macia Velazquez (🇨🇺 CUB, 2024) won with 5.0/6, ahead of Benjamin Bahamondes Ortiz (4.0) and Martin Diaz Vasquez (4.0). Macia Velazquez shared the lead from round 4 and won solo starting round 5.

The biggest upset came in round 2: Benjamin Ignacio Medina Castillo (1810) beat Ricardo Cortes Olivares (2181), a +371-point gap.

Location
🇨🇱Osorno, Chile
Dates
08 Nov 2025 → 09 Nov 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 6 rounds
Top seed
🇨🇱IMHugo Lopez Silva2383
Avg top 10
2,127
Participants
24
Titled players · 4
IM×1
FM×1
CM×2
Federations · 2 represented
🇨🇱Chile×23
🇨🇺Cuba×1
Top 3

How it unfolded

Top 6 · 6 rounds

Marlies Macia Velazquez 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
9
3
4
2
1
1
1.534.56R1R2R3R4R5R6
Macia Velazquez5Bahamondes Ortiz4Sanhueza Ortiz4Lopez Silva4Lagos Inostroza4Carrasco Miranda4
R5–R6 · LEAD HELD

Marlies Macia Velazquez never relinquished the lead after R5; final gap +1.0 over the runner-up.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Marlies Macia Velazquez beat FM Benjamin Bahamondes Ortiz (White).

R2–R5 · WIN STREAK

Marlies Macia Velazquez won 4 in a row (R2–R5).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Marlies Macia Velazquez*
1
—
1
2FMBenjamin Bahamondes Ortiz
0
*—
½
3Gonzalo Sanhueza Ortiz——*—
4IMHugo Lopez Silva
0
½
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Macia Velazquez, Marlies2024CUB=22N+19B+11N+4B+2B=3N5.017.018.015.502340+45.0
2Bahamondes Ortiz, BenjaminFM2308CHI+10N+8B=4N+3B−1N=7B4.020.524.015.002209-10.2
3Diaz Vasquez, MartinCM2261CHI+21B=6N+5B−2N+18B=1B4.019.521.513.002162-10.2
4Lopez Silva, HugoIM2383CHI+12B+16N=2B−1N+13B=5N4.019.021.512.502211-9.7
5Carrasco Miranda, AndresCM2213CHI+20N+17B−3N=8B+16N=4B4.016.518.510.752167-2.6
6Sanhueza Ortiz, Gonzalo1931CHI+23N=3B=9N=16B=12N+13N4.016.017.010.502108+27.2
7Lagos Inostroza, Andres1987CHI−17N+22B=19N+14B+8N=2N4.015.016.010.502105+17.4
8Tapia Loncon, Andres Saul1932CHI+15B−2N+21B=5N−7B+18N3.517.519.59.502064+19.6
9Zegpi Delgado, Diabb Luis1959CHI=11B+18N=6B−13N+21B=14N3.515.517.59.501991+5.4
10Tapia Loncon, Leonardo Elias1915CHI−2B−15N+24N=11B+19N+17B3.514.514.56.001953+4.6
11Medina Castillo, Benjamin Ignacio1810CHI=9N+14B−1B=10N=17N=12B3.018.020.59.251969+47.2
12Gonzalez Orellana, Andres1923CHI−4N+24B−16B+15N=6B=11N3.016.516.56.501951+2.0
13Carcamo Calderon, Jose Ignacio1952CHI−19N+20B+17N+9B−4N−6B3.016.018.08.001953-2.2
14Cortes Olivares, Ricardo2181CHI=18B−11N+15B−7N+20B=9B3.016.018.08.001877-83.6
15Araneda Flores, Javier Armando1806CHI−8N+10B−14N−12B+23N+16B3.015.516.57.001959+45.6
16Troncoso Carrasco, Jose2004CHI+24B−4B+12N=6N−5B−15N2.518.018.05.001958-10.2
17Vargas Alarcon, Marcelo1812CHI+7B−5N−13B+22N=11B−10N2.517.518.56.501895+10.0
18Huichicoy Gonzalez, Pablo1842CHI=14N−9B+22N+19B−3N−8B2.516.017.04.501936+20.8
19Toledo Ramirez, Guillermo1807CHI+13B−1N=7B−18N−10B=20N2.018.020.06.001805-0.4
20Almonacid Nunez, Juan Carlos1858CHI−5B−13N+23B=21N−14N=19B2.014.015.03.001848-4.4
21Santana Gonzalez, Lenin1888CHI−3N+23B−8N=20B−9N=22B2.014.015.02.501816-13.2
22Melipichun Torres, Katerine1836CHI=1B−7N−18B−17BF=21N1.016.016.03.501671-20.2
23Baez Millan, Alexis1800CHI−6B−21N−20N+24B−15BF1.011.011.00.001623-21.2
24Olave Parra, Hugo1835CHI−16N−12N−10B−23NFF0.010.010.00.001110-32.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
II FESTIVAL DE AJEDREZ ENROQUE OSORNINO GRAND PRIX SUB 2400-1801 — Osorno, Chile | Chess Tournament Results | ChessStats