CChessStats

IRT sub-1800 Club de Ajedrez Chillan Viejo

Open SwissStandard

26 players participated in this 5-round tournament, held on 21 Dec 2025 in Chillan Viejo, Chile. Top 10 Elo average was 1698, and top seed was Agustin Saez Fernandez (🇨🇱 CHI, 1795).

Daniel Ivan De La Maza Munoz (🇨🇱 CHI, 1782) won with 4.0/5, ahead of Marlin Villegas Villegas (4.0) and Sebastian Emilio Olea Contreras (4.0). De La Maza Munoz won on tie-break after catching the field in the final round.

The biggest upset came in round 2: Ignacia Belen Cid Aguilera (1558) beat Jose Palma Rodriguez (1792), a +234-point gap.

Location
🇨🇱Chillan Viejo, Chile
Dates
21 Dec 2025
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 5 rounds
Top seed
🇨🇱Agustin Saez Fernandez1795
Avg top 10
1,698
Participants
26
Federations · 1 represented
🇨🇱Chile×26
Top 3

How it unfolded

Top 6 · 5 rounds

Tight race until R5; 4 players tied at 4.0/5, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 4 at the finish.

Co-leaders
12
6
3
2
4
1.52.545R1R2R3R4R5
Villegas Villegas4De La Maza Munoz4Olea Contreras4Villa Doyharcabal4Saez Fernandez3.5Rivas Araneda3.5
R5 · TIEBREAK CLUSTER

4 players finish on 4.0/5. De La Maza Munoz takes the title on Buchholz Cut1 (14.5).

R2 · HEAD-TO-HEAD · WINNER VS 2ND

Marlin Villegas Villegas lost to Daniel Ivan De La Maza Munoz (White).

WIN STREAKS · 2 top finishers

Marlin Villegas Villegas 3 wins (R3–R5)Daniel Ivan De La Maza Munoz 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Marlin Villegas Villegas*
0
——
2Daniel Ivan De La Maza Munoz
1
*
1
—
3Sebastian Emilio Olea Contreras—
0
*—
4Jose Villa Doyharcabal———*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1De La Maza Munoz, Daniel Ivan1782CHI+9B+2N+3B−8N+5B4.014.517.514.501887+25.6
2Villegas Villegas, Marlin1596CHI+12B−1B+23N+9N+8B4.013.014.010.001814+53.2
3Olea Contreras, Sebastian Emilio1675CHI+23N+16B−1N+10B+6N4.012.513.59.501860+46.4
4Villa Doyharcabal, Jose1662CHI+26B+15N−5B+11N+12B4.011.511.58.001743+17.2
5Rivas Araneda, Francisco1767CHI+24N+13B+4N=6B−1N3.514.515.59.751811+6.8
6Saez Fernandez, Agustin1795CHI+14B+17N+8B=5N−3B3.513.015.09.251811+5.2
7Palma Rodriguez, Jose1792CHI=10N−11B+15B+14N+17B3.510.512.58.001651-27.2
8Conejeros Fredes, Tomas1714CHI+18B+21N−6N+1B−2N3.013.515.07.501714+0.8
9Acevedo Gonzalez, Juan Pablo1499CHI−1N+19B+13N−2B+16N3.013.015.07.001658+23.6
10Saa Manriquez, Gaspar Facundo1513CHI=7B=14N+17B−3N+22B3.012.013.56.501656+29.2
11Cid Aguilera, Ignacia Belen1558CHI−15N+7N+18B−4B+20N3.011.513.57.501776+44.8
12Ortiz Hidalgo, Martin Fernaando1419CHI−2N+24B+16N+21B−4N3.011.512.54.501648+57.6
13Munoz Bobadilla, Max1566CHI+25B−5N−9B+22N+18B3.010.011.04.501445-10.0
14Beltran Daza Francisco Ricardo1526CHI−6N=10B+24N−7B+21N2.511.512.54.001635+26.4
15Pradenas Sandoval Gabriel Andres0CHI+11B−4B−7N−18N+23B2.012.513.54.0015150.0
16Espinoza Moraga, Daniela Trinidad1547CHI+22B−3N−12B+19N−9B2.012.013.53.501314-49.2
17Carrasco Soto, Manuel Jesus1627CHI+19N−6B−10N+23B−7N2.012.013.03.001528-27.6
18Bucarey Seguel, Gonzalo1463CHI−8N+20B−11N+15B−13N2.011.013.04.001370-19.6
19Saa Manriquez, Federico Tomas1437CHI−17B−9N+25B−16B+24N2.08.09.02.001346-18.0
20Silva Carrasco, Camila Helena1412CHI−21B−18N+26B+25N−11B2.07.57.51.001315-19.6
21Cid Aguilera, Maria Jesus1569CHI+20N−8B=22N−12N−14B1.510.512.02.751329-50.4
22San Martin Duran, Tomas Marco Ale0CHI−16N+26N=21B−13B−10N1.59.59.50.7513780.0
23Baeza Avello, Pedro Efrain1458CHI−3B+25N−2B−17N−15N1.012.013.01.00834-16.2
24Saavedra Saavedra, Francisco1490CHI−5B−12N−14B+26N−19B1.011.011.00.001281-57.2
25Duran Moyano, Catalina Beatriz0CHI−13N−23B−19N−20B+26B1.08.08.00.0012230.0
26Yevenes Bascunan, Juan1439CHI−4N−22B−20N−24B−25N0.08.59.50.00726-46.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets