6 Open IRT Clasico Sub 1800 Circulo Peruano de Ajedrez
20 players participated in this 7-round tournament, held from 14 Nov 2025 to 16 Nov 2025 in Lima, Peru. 1 titled players. Top 10 Elo average was 1691, and top seed was Sergio Gabriel Reyes Zavaleta (🇵🇪 PER, 1797).
Sergio Gabriel Reyes Zavaleta (🇵🇪 PER, 1797) won with 6.0/7, ahead of Miguel Angel Huamani Davila (5.0) and Rihanna Irina Rojas Salas (5.0). Reyes Zavaleta broke clear in the final round.
The biggest upset came in round 7: Saul Valentin Flores Mallqui (1514) beat Miguel Angel Huamani Davila (1703), a +189-point gap.
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How it unfolded
Top 6 · 7 roundsSergio Gabriel Reyes Zavaleta led from R7; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R7.
Sergio Gabriel Reyes Zavaleta never relinquished the lead after R7; final gap +1.0 over the runner-up.
Sergio Gabriel Reyes Zavaleta beat Rihanna Irina Rojas Salas (Black).
Sergio Gabriel Reyes Zavaleta 3 wins (R3–R5)Miguel Angel Huamani Davila 3 wins (R3–R5)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Sergio Gabriel Reyes Zavaleta | * | 1 | ½ | — |
| 2Rihanna Irina Rojas Salas | 0 | * | — | 1 |
| 3Miguel Angel Huamani Davila | ½ | — | * | 0 |
| 4Saul Valentin Flores Mallqui | — | 0 | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Reyes Zavaleta, Sergio Gabriel | 1797 | PER | +15N | =2B | +8N | +13B | +3N | =5B | +6N | 6.0 | 24.0 | 25.5 | 20.75 | 1986 | +44.6 |
| 2 | Huamani Davila, Miguel Angel | 1703 | PER | +18B | =1N | +9B | +5N | +6B | =8N | −4B | 5.0 | 26.0 | 27.0 | 17.25 | 1776 | +12.0 |
| 3 | Rojas Salas, Rihanna Irina | 1779 | PER | +4B | −5N | +12B | +9N | −1B | +10N | +11N | 5.0 | 24.5 | 26.5 | 16.00 | 1733 | -7.8 |
| 4 | Flores Mallqui, Saul Valentin | 1514 | PER | −3N | +17B | −13N | +14B | +7N | +16B | +2N | 5.0 | 19.0 | 20.0 | 13.00 | 1722 | +27.0 |
| 5 | Gutarra Minaya, Percy Eduardo | 1721 | PER | F | +3B | +6N | −2B | +16N | =1N | +8B | 4.5 | 24.5 | 25.5 | 16.50 | 1860 | +34.3 |
| 6 | Salinas Gonzales, Eliseo Mequias | 1768 | PER | +12N | +7B | −5B | +10N | −2N | +19B | −1B | 4.0 | 24.5 | 25.5 | 10.00 | 1679 | -13.8 |
| 7 | Sardon Aragon Alejandro Ulysses | 1539 | PER | +20B | −6N | −10B | +12N | −4B | +9N | +16B | 4.0 | 18.0 | 18.5 | 6.50 | 1488 | -11.0 |
| 8 | Oropeza Ortega, Jacob Tiziano | 1475 | PER | F | +11N | −1B | +15N | +9B | =2B | −5N | 3.5 | 23.0 | 23.0 | 10.00 | 1694 | +61.2 |
| 9 | Jauregui Casas, Lhuanna Khalezzy | 1621 | PER | +14N | +13B | −2N | −3B | −8N | −7B | +18B | 3.0 | 21.5 | 22.5 | 5.00 | 1413 | -47.6 |
| 10 | Carbajal Sotomayor, Cesar Stefano | 1463 | PER | −13N | +14B | +7N | −6B | +15N | −3B | F | 3.0 | 18.5 | 19.5 | 7.50 | 1599 | +33.6 |
| 11 | Infantas Arevalo, Thiago Edu | 1472 | PER | F | −8B | +17N | −16B | +20N | +12N | −3B | 3.0 | 13.0 | 13.0 | 3.50 | 1559 | +16.4 |
| 12 | Sumoso Tejada, Marcelino | 1464 | PER | −6B | +18N | −3N | −7B | +14N | −11B | F | 2.0 | 19.0 | 19.0 | 3.00 | 842 | -47.2 |
| 13 | Esteban Castro, Esther RaquelWCM | 1738 | PER | +10B | −9N | +4B | −1N | F | F | F | 2.0 | 18.0 | 18.0 | 8.00 | 1591 | -29.2 |
| 14 | Garcia Moncada, Maria Estefany Sofia | 0 | PER | −9B | −10N | +18B | −4N | −12B | F | +20N | 2.0 | 14.5 | 14.5 | 1.50 | 709 | -100.4 |
| 15 | Callupe Matias, Rebeca Victoria | 1516 | PER | −1B | +16N | =20N | −8B | −10B | F | F | 1.5 | 14.0 | 14.0 | 1.25 | 780 | -52.4 |
| 16 | Pena Martin, Paolo Cesar | 0 | PER | F | −15B | F | +11N | −5B | −4N | −7N | 1.0 | 19.0 | 19.0 | 3.00 | 1313 | 0.0 |
| 17 | Quispe Villar, Harim Gabriel | 1442 | PER | F | −4N | −11B | +18N | F | F | F | 1.0 | 13.5 | 13.5 | 1.00 | 693 | -38.8 |
| 18 | Choque Meza, Axel Leonel | 0 | PER | −2N | −12B | −14N | −17B | F | +20B | −9N | 1.0 | 13.5 | 13.5 | 0.50 | 766 | 0.0 |
| 19 | Rios Clavijo, Cristian | 1728 | PER | F | F | F | +20B | F | −6N | F | 1.0 | 10.5 | 10.5 | 0.50 | 968 | -8.8 |
| 20 | Yanapa Almanza, Daniela Geraldine | 0 | PER | −7N | F | =15B | −19N | −11B | −18N | −14B | 0.5 | 12.5 | 12.5 | 0.75 | 1244 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Oropeza Ortega, Jacob TizianoPER+61.23.5 pts · #5
- 2Reyes Zavaleta, Sergio GabrielPER+44.66.0 pts · #1
- 3Gutarra Minaya, Percy EduardoPER+34.34.5 pts · #6
- 1Garcia Moncada, Maria Estefany SofiaPER-100.42.0 pts · #19
- 2Callupe Matias, Rebeca VictoriaPER-52.41.5 pts · #18
- 3Jauregui Casas, Lhuanna KhalezzyPER-47.63.0 pts · #13
- R7+189 Elo gap
- R5+146 Elo gap
- R2+117 Elo gap