Magistral B Club de Ajedrez Concepcion 2025
8 players participated in this 7-round tournament, held from 11 Jul 2025 to 13 Jul 2025 in Concepcion, Chile. Top 10 Elo average was 1924, and top seed was Javier Alonso Arias Diaz (🇨🇱 CHI, 2005).
Javier Alonso Arias Diaz (🇨🇱 CHI, 2005) won with 5.5/7, ahead of Daniel Alonso Allende Munoz (4.5) and Diabb Luis Zegpi Delgado (4.5). Arias Diaz led wire-to-wire.
The biggest upset came in round 3: Daniel Alonso Allende Munoz (1857) beat Heraldo Salgado Moscoso (1977), a +120-point gap.
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How it unfolded
Top 8 · 7 roundsJavier Alonso Arias Diaz led from R1 onwards, the runner-up race stayed tight.
Javier Alonso Arias Diaz never relinquished the lead after R1; final gap +1.0 over the runner-up.
Javier Alonso Arias Diaz beat Diabb Luis Zegpi Delgado (Black).
Javier Alonso Arias Diaz went unbeaten across 7 games (R1–R7).
Cross-table
| # | Player | Elo | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | Pts | SB | Bh | Δ Elo | Perf |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 🇨🇱Arias Diaz, Javier Alonso | 2005 | * | ½ | 1 | ½ | ½ | 1 | 1 | 1 | 5.5 | 16.00 | 21.5 | +33.3 | 2142 |
| 3 | 🇨🇱Allende Munoz, Daniel Alonso | 1857 | ½ | * | ½ | ½ | ½ | ½ | 1 | 1 | 4.5 | 12.75 | 22.5 | +60.6 | 2035 |
| 2 | 🇨🇱Zegpi Delgado, Diabb Luis | 1943 | 0 | ½ | * | 1 | ½ | ½ | 1 | 1 | 4.5 | 11.75 | 22.5 | +15.8 | 2023 |
| 4 | 🇨🇱Rodriguez Alarcon, Vicente Benjamin | 1855 | ½ | ½ | 0 | * | 1 | 0 | ½ | 1 | 3.5 | 10.00 | 23.5 | +29.6 | 1933 |
| 6 | 🇨🇱Cartes Esquivel, Oscar | 1912 | ½ | ½ | ½ | 0 | * | ½ | ½ | ½ | 3.0 | 10.25 | 24.0 | -7.6 | 1875 |
| 5 | 🇨🇱Sanhueza Ortiz, Gonzalo | 1960 | 0 | ½ | ½ | 1 | ½ | * | 0 | ½ | 3.0 | 10.00 | 24.0 | -17.8 | 1868 |
| 7 | 🇨🇱Salgado Moscoso, Heraldo | 1977 | 0 | 0 | 0 | ½ | ½ | 1 | * | — | 2.0 | 6.25 | 25.0 | -29.2 | 1797 |
| 8 | 🇨🇱Salgado San Martin, Heraldo | 1879 | 0 | 0 | 0 | 0 | ½ | ½ | — | * | 1.0 | 3.00 | 26.0 | -32.8 | 1649 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Allende Munoz, Daniel AlonsoCHI+60.64.5 pts · #3
- 2Arias Diaz, Javier AlonsoCHI+33.35.5 pts · #1
- 3Rodriguez Alarcon, Vicente BenjaminCHI+29.63.5 pts · #4
- 1Salgado San Martin, HeraldoCHI-32.81.0 pts · #8
- 2Salgado Moscoso, HeraldoCHI-29.22.0 pts · #7
- 3Sanhueza Ortiz, GonzaloCHI-17.83.0 pts · #5
- R3+120 Elo gap