2da Categoria 1400 a 1600 Preparatorio Sudamericano Escolar 2025
10 players participated in this 9-round tournament, held from 20 Jun 2025 to 21 Jun 2025 in Valdivia, Chile. Top 10 Elo average was 1519, and top seed was Mateo Alexis Barrientos Alvarado (🇨🇱 CHI, 1577).
Sebastian Andres Contreras Herrera (🇨🇱 CHI, 1551) won with 7.5/9, ahead of Gabriel Salazar Torres (7.0) and Mateo Alexis Barrientos Alvarado (7.0). Contreras Herrera shared the lead from round 7 and broke clear in the final round.
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How it unfolded
Top 10 · 9 roundsSebastian Andres Contreras Herrera led from R9 onwards, the runner-up race stayed tight.
Mateo Alexis Barrientos Alvarado takes the sole lead (5.0/6).
Sebastian Andres Contreras Herrera drew with Gabriel Salazar Torres (Black).
Sebastian Andres Contreras Herrera 5 wins (R5–R9)Gabriel Salazar Torres 3 wins (R1–R3)Mateo Alexis Barrientos Alvarado 5 wins (R2–R6)
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇨🇱Contreras Herrera, Sebastian Andres | 1551 | * | ½ | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 7.5 | 28.50 | 37.5 | +102.0 | 1789 |
| 2 | 🇨🇱Salazar Torres, Gabriel | 1483 | ½ | * | 1 | 1 | 0 | ½ | 1 | 1 | 1 | 1 | 7.0 | 28.25 | 38.0 | +120.0 | 1744 |
| 3 | 🇨🇱Barrientos Alvarado, Mateo Alexis | 1577 | 0 | 0 | * | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 7.0 | 23.50 | 38.0 | +68.8 | 1733 |
| 4 | 🇨🇱Pizarro Rozas, Aaron | 1514 | 1 | 0 | 0 | * | 1 | 1 | 1 | ½ | 1 | 0 | 5.5 | 23.25 | 39.5 | +42.8 | 1600 |
| 6 | 🇨🇱Torres Lagos, Matias Alberto | 1552 | 0 | 1 | 0 | 0 | * | ½ | 1 | 0 | ½ | 1 | 4.0 | 15.25 | 41.0 | -38.4 | 1473 |
| 7 | 🇨🇱Iturra Gutierrez, Maria Ignacia | 1482 | 0 | ½ | 0 | 0 | ½ | * | 0 | 1 | 1 | 1 | 4.0 | 11.50 | 41.0 | +0.8 | 1481 |
| 5 | 🇨🇱Moraga Caceres, Krisna | 1560 | 0 | 0 | 0 | 0 | 0 | 1 | * | 1 | 1 | 1 | 4.0 | 10.00 | 41.0 | -42.0 | 1472 |
| 8 | 🇨🇱Alegria Rojas, Francisco Antonio | 1455 | 0 | 0 | 0 | ½ | 1 | 0 | 0 | * | 0 | 1 | 2.5 | 7.75 | 42.5 | -44.4 | 1361 |
| 9 | 🇨🇱Meza Campos, Krisli | 1517 | 0 | 0 | 0 | 0 | ½ | 0 | 0 | 1 | * | 1 | 2.5 | 5.50 | 42.5 | -78.8 | 1354 |
| 10 | 🇨🇱Rademacher Otero, Annelizze | 1503 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | * | 1.0 | 5.50 | 44.0 | -130.8 | 1171 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Salazar Torres, GabrielCHI+120.07.0 pts · #2
- 2Contreras Herrera, Sebastian AndresCHI+102.07.5 pts · #1
- 3Barrientos Alvarado, Mateo AlexisCHI+68.87.0 pts · #3
- 1Rademacher Otero, AnnelizzeCHI-130.81.0 pts · #10
- 2Meza Campos, KrisliCHI-78.82.5 pts · #9
- 3Alegria Rojas, Francisco AntonioCHI-44.42.5 pts · #8