IRT Sub 1800 Clasificatorio a la Final de Chile
18 players participated in this 5-round tournament, held on 19 Dec 2025 in Quillota, Region Valparaiso, Chile, Chile. Top 10 Elo average was 1625, and top seed was Wieland Siegfried Muller Koenig (🇨🇱 CHI, 1778).
Rafael Gonzalez Osorio (🇨🇱 CHI, 1593) won with 4.0/5, ahead of Francisco Tricot Wong (4.0) and Weiner Andrey Pulido Ramirez (4.0). Gonzalez Osorio took the lead from round 3, winning on tie-break.
The biggest upset came in round 2: Rafael Gonzalez Osorio (1593) beat Eduardo Enrique Coaguila Amesquita (1708), a +115-point gap.
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsTight race until R3; 3 players tied at 4.0/5, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 3 at the finish.
Rafael Gonzalez Osorio held the sole lead from R3 through R5 without losing it.
3 players finish on 4.0/5. Gonzalez Osorio takes the title on Buchholz Cut1 (14.5).
Rafael Gonzalez Osorio beat Francisco Tricot Wong (White).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Rafael Gonzalez Osorio | * | 1 | ½ | 1 |
| 2Francisco Tricot Wong | 0 | * | — | — |
| 3Weiner Andrey Pulido Ramirez | ½ | — | * | — |
| 4Francisco Contreras Vega | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Gonzalez Osorio, Rafael | 1593 | CHI | +4N | +13B | +2B | =5N | =3N | 4.0 | 14.5 | 16.5 | 13.00 | 1900 | +78.4 |
| 2 | Tricot Wong, Francisco | 1692 | CHI | +11N | +6B | −1N | +9B | +5B | 4.0 | 12.5 | 15.0 | 11.00 | 1821 | +15.6 |
| 3 | Pulido Ramirez, Weiner Andrey | 1620 | CHI | +14B | +7N | =5B | +12N | =1B | 4.0 | 12.5 | 14.5 | 11.00 | 1802 | +37.6 |
| 4 | Contreras Vega, Francisco | 1504 | CHI | −1B | +17N | +8N | +11B | =6N | 3.5 | 12.5 | 12.5 | 7.00 | 1647 | +30.0 |
| 5 | Muller Koenig, Wieland Siegfried | 1778 | CHI | +9N | +8B | =3N | =1B | −2N | 3.0 | 15.0 | 17.5 | 9.50 | 1675 | -12.6 |
| 6 | Guerra Navarrete, Ximena Trinidad De Lourdes | 1563 | CHI | +18B | −2N | =10B | +14N | =4B | 3.0 | 12.0 | 12.0 | 5.00 | 1534 | -6.4 |
| 7 | Perez Rojas, Alonso | 0 | CHI | +15B | −3B | =9N | =10N | +13B | 3.0 | 11.0 | 12.0 | 5.50 | 1602 | 0.0 |
| 8 | Prado Villalobos, Diego Esteban | 1594 | CHI | +17B | −5N | −4B | +16N | +12B | 3.0 | 9.5 | 9.5 | 3.00 | 1505 | -14.4 |
| 9 | Vergara Arenas, Amapola Angely | 1516 | CHI | −5B | +14N | =7B | −2N | +15B | 2.5 | 12.0 | 13.0 | 4.50 | 1628 | +22.4 |
| 10 | Llanos Toro, Ian Andres | 1482 | CHI | −13N | +16B | =6N | =7B | =11N | 2.5 | 10.5 | 11.0 | 4.75 | 1451 | -5.6 |
| 11 | Araya Varela, Valentina Amanda Isidora | 1456 | CHI | −2B | +18N | +16B | −4N | =10B | 2.5 | 10.5 | 10.5 | 1.75 | 1286 | -23.6 |
| 12 | Zamora Zamora, Cristian | 1607 | CHI | =16N | +15B | +13N | −3B | −8N | 2.5 | 10.0 | 10.5 | 3.25 | 1626 | +2.2 |
| 13 | Coaguila Amesquita, Eduardo Enrique | 1708 | CHI | +10B | −1N | −12B | +15N | −7N | 2.0 | 12.0 | 13.0 | 3.50 | 1566 | -30.4 |
| 14 | Fernandez Tejada, Isabella Paz | 1447 | CHI | −3N | −9B | +18N | −6B | +17N | 2.0 | 9.5 | 9.5 | 0.00 | 767 | -42.8 |
| 15 | Canelo Herrera, Carlos | 1582 | CHI | −7N | −12N | +17B | −13B | −9N | 1.0 | 10.0 | 10.0 | 0.00 | 810 | -55.6 |
| 16 | FIDE 3489175 | 0 | — | =12B | −10N | −11N | −8B | F | 0.5 | 10.5 | 10.5 | 1.25 | 1213 | 0.0 |
| 17 | FIDE 3486150 | 0 | — | −8N | −4B | −15N | F | −14B | 0.0 | 9.5 | 9.5 | 0.00 | 735 | 0.0 |
| 18 | FIDE 3480836 | 0 | — | −6N | −11B | −14B | F | F | 0.0 | 7.5 | 7.5 | 0.00 | 693 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Gonzalez Osorio, RafaelCHI+78.44.0 pts · #1
- 2Pulido Ramirez, Weiner AndreyCHI+37.64.0 pts · #4
- 3Contreras Vega, FranciscoCHI+30.03.5 pts · #6
- 1Canelo Herrera, CarlosCHI-55.61.0 pts · #16
- 2Fernandez Tejada, Isabella PazCHI-42.82.0 pts · #18
- 3Coaguila Amesquita, Eduardo EnriqueCHI-30.42.0 pts · #7
- R2+115 Elo gap
- R3+101 Elo gap