CChessStats

IRT sub 1800, otono en Valdivia 2026

Open SwissStandard

23 players participated in this 5-round tournament, held on 21 Mar 2026 in Valdivia, Chile. 2 federations represented. Top 10 Elo average was 1658, and top seed was Alison Herrera Catrilef (🇨🇱 CHI, 1764).

Alex Flores Castro (🇨🇱 CHI, 1720) won with 4.5/5, ahead of Leonardo Moreira Roldan (4.0) and Martin Ignac Sepulveda Caniullan (4.0). Flores Castro clinched sole first place in the final round.

The biggest upset came in round 2: Mathias Alexander Toro Medina (1622) beat Alison Herrera Catrilef (1764), a +142-point gap.

Location
🇨🇱Valdivia, Chile
Dates
21 Mar 2026
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 5 rounds
Top seed
🇨🇱Alison Herrera Catrilef1764
Avg top 10
1,658
Participants
23
Federations · 2 represented
🇨🇱Chile×22
🇦🇷Argentina×1
Top 3

How it unfolded

Top 6 · 5 rounds

Alex Flores Castro led from R5; +0.5-point edge over the runner-up.

Co-leaders
11
3
1
1
1
1.52.545R1R2R3R4R5Flores Castro takes lead
Flores Castro4.5Sepulveda Caniullan4Moreira Roldan4Merino Barria3.5Vernier3.5Toro Medina3.5— ex-leaders:Moreira Roldanled R3–R4, #7
R5 · LEADER CHANGE21 Mar

Alex Flores Castro takes the sole lead (4.5/5).

WIN STREAKS · 2 top finishers

Alex Flores Castro 3 wins (R3–R5)Leonardo Moreira Roldan 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Alex Flores Castro*—
1
—
2Martin Ignac Sepulveda Caniullan—*
0
—
3Leonardo Moreira Roldan
0
1
*—
4Diego Tomas Merino Barria———*

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Flores Castro, Alex1720CHI+19B=12N+4B+7N+2N4.513.014.012.751956+23.2
2Moreira Roldan, Leonardo1682CHI+15B+17N+3B+5N−1B4.014.015.511.001840+32.8
3Sepulveda Caniullan, Martin Ignac1639CHI+9N+18B−2N+11B+8N4.013.014.010.001793+32.0
4Toro Medina, Mathias Alexander1622CHI+22N+8B−1N+10B=7B3.513.514.08.001747+13.0
5Vernier, Matthieu Pierre1748CHI+11N=7B+13N−2B+12N3.512.515.09.501727-1.8
6Merino Barria, Diego Tomas1695CHI+10N=13B−7N+9B+16N3.511.513.59.251682-1.2
7Paredes Santana, Jeremias Andres1623CHI+21B=5N+6B−1B=4N3.015.016.08.001718+26.8
8Herrera Catrilef, Alison1764CHI+14B−4N+12B+18N−3B3.012.013.05.501576-37.6
9Gongora Rauch, Agustin Maximiliano1457CHI−3B+14N+19B−6N+15B3.011.512.55.001635+48.0
10Caceres Monroy, Josefa Hanan1484CHI−6B+20N+17B−4N+14B3.010.511.54.501484-3.2
11Salazar Torres, Gabriel1509CHI−5B+21N+23B−3N+18B3.09.59.52.001486-4.0
12Pizarro Rozas, Aaron1541CHI+23N=1B−8N+13B−5B2.513.513.54.751607+12.8
13Lara Martinez, Gabriel Nehemias1548CHI+20B=6N−5B−12N+17B2.511.012.04.251385-22.4
14Acevedo Gonzalez, Juan Pablo1511CHI−8N−9B+22N+20B−10N2.010.010.51.50773-25.6
15Andrade Mayorga, Julian1482CHI−2N+16B−18N+23B−9N2.010.010.02.001432-8.0
16Torres Lagos, Matias Alberto1531CHI−17B−15N+21B+19N−6B2.08.09.02.001528-1.6
17Gajardo Hermosilla,Mathias Benjamin0CHI+16N−2B−10N=22B−13N1.511.512.02.2513740.0
18Vera Quijon, Pedro Anibal0CHIF−3N+15B−8B−11N1.012.012.02.0014030.0
19Tobar Sala, Juan Carlos1491CHI−1N+22B−9N−16B−20N1.010.511.00.50770-24.0
20Herrera Catrilef, Pia Agustina0CHI−13N−10BF−14N+19B1.08.58.51.0013210.0
21Mamani, Caleb1445ARG−7N−11B−16NF+23N1.08.08.00.00753-42.8
22Colther Montecinos, Eva0CHI−4B−19N−14B=17NF0.58.08.00.757410.0
23Herrera Catrilef, Camila Leonor0CHI−12BF−11N−15N−21B0.08.58.50.006910.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets