IRT de Invierno, Valdivia 2025
Open SwissStandard
30 players participated in this 5-round tournament, held from 02 Aug 2025 to 03 Aug 2025 in Valdivia, Chile. Top 10 Elo average was 1843, and top seed was Hans Richter Becerra (🇨🇱 CHI, 2053).
Andres Lagos Inostroza (🇨🇱 CHI, 1942) won with 5.0/5, ahead of Alfredo Mondaca Gonzalez (4.0) and Alison Herrera Catrilef (4.0). Lagos Inostroza won solo starting round 4.
The biggest upset came in round 2: Sebastian Andres Contreras Herrera (1692) beat Alfredo Mondaca Gonzalez (1897), a +205-point gap.
Location
🇨🇱Valdivia, Chile
Dates
02 Aug 2025 → 03 Aug 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Federations · 1 represented
🇨🇱Chile×29
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 5 roundsAndres Lagos Inostroza led from R4; +1.0-point edge over the runner-up.
Co-leaders
14
7
3
1
1
Lagos Inostroza5Mondaca Gonzalez4Herrera Catrilef4Richter Becerra3.5Ponce Perez3.5Carcamo Calderon3.5
R4–R5 · LEAD HELD
Andres Lagos Inostroza never relinquished the lead after R4; final gap +1.0 over the runner-up.
WIN STREAKS · 3 top finishers
Andres Lagos Inostroza 5 wins (R1–R5)Alfredo Mondaca Gonzalez 3 wins (R3–R5)Alison Herrera Catrilef 3 wins (R3–R5)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Andres Lagos Inostroza | * | — | — | 1 |
| 2Alfredo Mondaca Gonzalez | — | * | — | — |
| 3Alison Herrera Catrilef | — | — | * | — |
| 4Hans Richter Becerra | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Lagos Inostroza, Andres | 1942 | CHI | +21B | +9N | +4B | +6B | +5N | 5.0 | 13.5 | 15.5 | 15.50 | 2620 | +35.8 |
| 2 | Mondaca Gonzalez, Alfredo | 1897 | CHI | +24N | −11B | +14N | +18B | +8N | 4.0 | 11.0 | 13.0 | 10.00 | 1910 | +2.6 |
| 3 | Herrera Catrilef, Alison | 1651 | CHI | +30N | −4B | +20N | +15B | +10N | 4.0 | 11.0 | 11.0 | 7.50 | 1914 | +41.6 |
| 4 | Ponce Perez, Martin Roy | 1823 | CHI | +19B | +3N | −1N | +13B | =6N | 3.5 | 15.5 | 18.0 | 11.25 | 1901 | +24.0 |
| 5 | Carcamo Calderon, Jose Ignacio | 1946 | CHI | =14N | +17B | +7N | +10B | −1B | 3.5 | 14.0 | 16.5 | 10.25 | 1886 | -5.0 |
| 6 | Richter Becerra, Hans | 2053 | CHI | +17B | +15N | +8B | −1N | =4B | 3.5 | 14.0 | 16.5 | 9.75 | 1940 | -10.6 |
| 7 | Moreira Roldan, Leonardo | 1651 | CHI | +29B | +12N | −5B | =9N | +16B | 3.5 | 12.0 | 12.0 | 7.00 | 1809 | +31.6 |
| 8 | Melipichun Torres, Katerine | 1824 | CHI | +22N | +13B | −6N | +11N | −2B | 3.0 | 13.5 | 15.5 | 8.00 | 1829 | +2.2 |
| 9 | Vernier, Matthieu Pierre | 1695 | CHI | +28N | −1B | +23N | =7B | =12B | 3.0 | 13.5 | 14.5 | 6.25 | 1684 | -1.0 |
| 10 | Branes Castillo, Martin Hati | 1830 | CHI | +16B | +18N | +11B | −5N | −3B | 3.0 | 13.0 | 15.5 | 8.00 | 1764 | -14.0 |
| 11 | Contreras Herrera, Sebastian Andres | 1692 | CHI | +25B | +2N | −10N | −8B | +22N | 3.0 | 12.0 | 13.0 | 7.00 | 1761 | +14.8 |
| 12 | Retamal San Martin Maximiliano Ignacio | 1712 | CHI | +23N | −7B | =16N | +14B | =9N | 3.0 | 11.5 | 13.5 | 7.25 | 1653 | -13.2 |
| 13 | Alvarez Zambrano, Rodolfo | 1654 | CHI | +26B | −8N | +25B | −4N | +20B | 3.0 | 9.5 | 10.5 | 4.00 | 1024 | -11.2 |
| 14 | Pizarro Rozas, Aaron | 1619 | CHI | =5B | +21N | −2B | −12N | +25B | 2.5 | 12.5 | 13.5 | 4.75 | 1697 | +10.4 |
| 15 | Hernandez Olave, Angelo | 1711 | CHI | +27B | −6B | +22N | −3N | =17B | 2.5 | 12.0 | 13.0 | 4.25 | 1622 | -23.2 |
| 16 | Torres Lagos, Matias Alberto | 1503 | CHI | −10N | +28B | =12B | +24N | −7N | 2.5 | 11.5 | 12.5 | 4.50 | 1598 | +16.0 |
| 17 | Toro Medina, Mathias Alexander | 1640 | CHI | −6N | −5N | +26B | +23B | =15N | 2.5 | 11.5 | 12.5 | 4.25 | 1696 | +2.2 |
| 18 | Araneda Alcaino, Arturo Nicolas | 1664 | CHI | +20N | −10B | +27N | −2N | =19B | 2.5 | 11.5 | 12.5 | 4.25 | 1455 | -30.4 |
| 19 | Iturra Gutierrez, Maria Ignacia | 1456 | CHI | −4N | −20B | +30N | +27B | =18N | 2.5 | 9.0 | 9.0 | 2.25 | 1551 | +6.8 |
| 20 | Neguiman Osses, Agustina Ignacia | 0 | CHI | −18B | +19N | −3B | +21N | −13N | 2.0 | 12.0 | 14.0 | 4.50 | 1530 | 0.0 |
| 21 | Salazar Torres, Gabriel | 1581 | CHI | −1N | −14B | +28N | −20B | +29N | 2.0 | 10.5 | 10.5 | 1.00 | 982 | -21.6 |
| 22 | Tobar Sala, Juan Carlos | 1490 | CHI | −8B | +26N | −15B | +25N | −11B | 2.0 | 9.5 | 10.5 | 2.00 | 943 | -11.6 |
| 23 | Rademacher Alvarez, Celeste Belen | 1430 | CHI | −12B | +29N | −9B | −17N | +26B | 2.0 | 9.5 | 9.5 | 1.00 | 883 | -22.8 |
| 24 | Morales Herrera, Cristian Ricardo | 1547 | CHI | −2B | −25N | +29B | −16B | +27N | 2.0 | 8.5 | 8.5 | 1.00 | 901 | -26.8 |
| 25 | Gongora Rauch, Agustin Maximiliano | 0 | CHI | −11N | +24B | −13N | −22B | −14N | 1.0 | 10.5 | 12.5 | 2.00 | 1361 | 0.0 |
| 26 | Nunez Arriagada Carolina Ignacia | 0 | CHI | −13N | −22B | −17N | +30B | −23N | 1.0 | 9.5 | 9.5 | 0.00 | 754 | 0.0 |
| 27 | Chodiman Nahuelpan, Benjamin Cristobal | 0 | CHI | −15N | +30B | −18B | −19N | −24B | 1.0 | 9.5 | 9.5 | 0.00 | 795 | 0.0 |
| 28 | Colther Montecinos, Eva | 0 | CHI | −9B | −16N | −21B | F | +30N | 1.0 | 7.5 | 7.5 | 0.00 | 793 | 0.0 |
| 29 | Rademacher Otero, Annelizze | 0 | CHI | −7N | −23B | −24N | F | −21B | 0.0 | 9.5 | 10.5 | 0.00 | 753 | 0.0 |
| 30 | FIDE 3478980 | 0 | — | −3B | −27N | −19B | −26N | −28B | 0.0 | 8.5 | 9.5 | 0.00 | 755 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Herrera Catrilef, AlisonCHI+41.64.0 pts · #11
- 2Lagos Inostroza, AndresCHI+35.85.0 pts · #1
- 3Moreira Roldan, LeonardoCHI+31.63.5 pts · #9
Top rating losers
- 1Araneda Alcaino, Arturo NicolasCHI-30.42.5 pts · #19
- 2Morales Herrera, Cristian RicardoCHI-26.82.0 pts · #23
- 3Hernandez Olave, AngeloCHI-23.22.5 pts · #17
Biggest upsets
- R2+205 Elo gap
- R5+179 Elo gap
- R4+111 Elo gap