II IRT DEL CENTENARIO CDP 2025 U12
Open SwissStandard
35 players participated in this 7-round tournament, held from 02 Oct 2025 to 05 Oct 2025 in Quito, Ecuador. Top 10 Elo average was 1495, and top seed was David Perez Cruz (🇪🇨 ECU, 1580).
William Mateo Guayasamin Yanez (🇪🇨 ECU, 1491) won with 6.0/7, ahead of Isaac Jeremias Ona Morales (6.0) and Alisson Jordana Garay Huillca (5.5). Guayasamin Yanez shared the lead from round 3, winning on tie-break.
Location
🇪🇨Quito, Ecuador
Dates
02 Oct 2025 → 05 Oct 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 7 rounds
Federations · 1 represented
🇪🇨Ecuador×24
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsTight race until R7; 2 players tied at 6.0/7, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.
Co-leaders
20
10
4
2
1
1
2
R7 · TIEBREAK CLUSTER
2 players finish on 6.0/7. Guayasamin Yanez takes the title on Buchholz Cut1 (29.5).
R5 · HEAD-TO-HEAD · WINNER VS 2ND
Isaac Jeremias Ona Morales lost to William Mateo Guayasamin Yanez (Black).
WIN STREAKS · 2 top finishers
Isaac Jeremias Ona Morales 4 wins (R1–R4)William Mateo Guayasamin Yanez 6 wins (R1–R6)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Isaac Jeremias Ona Morales | * | 0 | — | — |
| 2William Mateo Guayasamin Yanez | 1 | * | 0 | — |
| 3Alisson Jordana Garay Huillca | — | 1 | * | 1 |
| 4Diego Antonio Moromenacho Cadena | — | — | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Guayasamin Yanez, William Mateo | 1491 | ECU | +20B | +15N | +12B | +6N | +2B | +5N | −3B | 6.0 | 29.5 | 33.0 | 27.50 | 1607 | +18.4 |
| 2 | Ona Morales, Isaac Jeremias | 1514 | ECU | +35N | +25B | +13N | +5B | −1N | +14B | +19N | 6.0 | 25.5 | 26.5 | 20.50 | 1661 | +30.0 |
| 3 | Garay Huillca, Alisson Jordana | 1466 | ECU | +4B | +22N | =10B | +7N | −9B | +11N | +1N | 5.5 | 30.0 | 33.0 | 26.25 | 1653 | +52.0 |
| 4 | Moromenacho Cadena, Diego Antonio | 0 | ECU | −3N | =30B | +22B | +27N | +?B | +10N | +9B | 5.5 | 23.0 | 23.0 | 16.25 | 1537 | 0.0 |
| 5 | Peralvo Cabrera, Mia Isabella | 1469 | ECU | +17N | +24B | +8N | −2N | +23B | −1B | +14N | 5.0 | 27.5 | 30.5 | 18.50 | 1502 | +7.2 |
| 6 | Revilla Zambrano, Santiago Daniel | 1459 | ECU | +28N | +?B | +9N | −1B | −19N | +8B | +15N | 5.0 | 25.5 | 25.5 | 16.00 | 1530 | 0.0 |
| 7 | Mendoza Choez, Paul Alexander | 1501 | ECU | +18N | −12B | +17N | −3B | +24N | +26B | +13N | 5.0 | 24.5 | 27.5 | 18.00 | 1446 | -6.4 |
| 8 | Ruiz Armas, Kirpal Gabriel | 1527 | ECU | +16B | +14N | −5B | +10N | =11B | −6N | +20B | 4.5 | 27.0 | 30.5 | 18.25 | 1586 | +11.6 |
| 9 | Guaman Chamik, Juan Patricio | 1512 | ECU | +27B | +31N | −6B | +12N | +3N | =19B | −4N | 4.5 | 26.5 | 29.0 | 16.75 | 2260 | +17.2 |
| 10 | Perez Cruz, David | 1580 | ECU | +34N | +11B | =3N | −8B | +30N | −4B | +23B | 4.5 | 25.5 | 27.5 | 14.75 | 1474 | -16.8 |
| 11 | Aucay Cabrera, Javier Sebastian | 1412 | ECU | +33B | −10N | +32B | +15N | =8N | −3B | +21B | 4.5 | 24.0 | 26.0 | 13.75 | 1249 | -26.0 |
| 12 | Gonzalez Astudillo, Edgar Rafael | 0 | ECU | +19B | +7N | −1N | −9B | +17N | −13B | +24N | 4.0 | 27.0 | 30.0 | 15.50 | 1292 | 0.0 |
| 13 | Trujillo Crespo, Deivid Caleb | 1433 | ECU | +32B | +23N | −2B | +16N | −14B | +12N | −7B | 4.0 | 26.0 | 28.0 | 13.00 | 699 | -49.2 |
| 14 | Morocho Defaz, Yanick Alejandro | 1426 | ECU | +29N | −8B | +28N | +24B | +13N | −2N | −5B | 4.0 | 25.5 | 28.5 | 13.00 | 1293 | -38.0 |
| 15 | Santillan Castillo, Alejandra Est | 0 | ECU | +26N | −1B | +25N | −11B | +16B | +30N | −6B | 4.0 | 25.5 | 28.0 | 12.50 | 663 | 0.0 |
| 16 | FIDE 3673120 | 0 | — | −8N | +29B | +21N | −13B | −15N | +28B | +26N | 4.0 | 22.0 | 25.0 | 12.50 | 680 | 0.0 |
| 17 | FIDE 3673162 | 0 | — | −5B | +?N | −7B | +?N | −12B | +22N | +?B | 4.0 | 17.0 | 17.0 | 3.00 | 689 | 0.0 |
| 18 | FIDE 3656322 | 0 | — | −7B | +?N | −23B | −22N | +?B | +?N | +25N | 4.0 | 14.0 | 14.0 | 3.00 | 705 | 0.0 |
| 19 | Zamora Moncayo, Emilio Sebastian | 0 | ECU | −12N | F | +27B | +?N | +6B | =9N | −2B | 3.5 | 22.5 | 22.5 | 10.25 | 1320 | 0.0 |
| 20 | FIDE 3673154 | 0 | — | −1N | −26B | +34N | +?B | =21N | +?B | −8N | 3.5 | 19.0 | 19.0 | 3.75 | 709 | 0.0 |
| 21 | Velecela Urresta, Aaron | 0 | ECU | +?B | −?N | −16B | +32N | =20B | +29B | −11N | 3.5 | 17.0 | 17.0 | 6.75 | 635 | 0.0 |
| 22 | Torres Chimbo, Daniela Estefania | 0 | ECU | +30N | −3B | −4N | +18B | −25N | −17B | +?N | 3.0 | 24.5 | 24.5 | 6.50 | 660 | 0.0 |
| 23 | FIDE 3645088 | 0 | — | F | −13B | +18N | +26B | −5N | +25B | −10N | 3.0 | 23.5 | 23.5 | 10.00 | 695 | 0.0 |
| 24 | FIDE 3661474 | 0 | — | +?B | −5N | +31B | −14N | −7B | +27N | −12B | 3.0 | 23.5 | 23.5 | 5.50 | 685 | 0.0 |
| 25 | Cobo Yanguicela, Kevin Alexander | 0 | ECU | +?B | −2N | −15B | +33N | +22B | −23N | −18B | 3.0 | 22.0 | 22.0 | 5.00 | 713 | 0.0 |
| 26 | Aucay Tenecota, Juan Fernando | 0 | ECU | −15B | +20N | +33B | −23N | +?B | −7N | −16B | 3.0 | 21.5 | 21.5 | 5.50 | 705 | 0.0 |
| 27 | Jimenez Zhunio, Erick Santiago | 0 | ECU | −9N | +?B | −19N | −4B | +?N | −24B | +34N | 3.0 | 18.5 | 18.5 | 2.00 | 712 | 0.0 |
| 28 | Ona Morales, Amaia Valentina | 0 | ECU | −6B | +?N | −14B | −?N | +31B | −16N | +33B | 3.0 | 17.5 | 17.5 | 4.50 | 678 | 0.0 |
| 29 | FIDE 3672727 | 0 | — | −14B | −16N | =?B | +?N | +32B | −21N | =31B | 3.0 | 16.0 | 16.0 | 3.25 | 678 | 0.0 |
| 30 | FIDE 3673073 | 0 | — | −22B | =4N | +?B | +31N | −10B | −15B | −?N | 2.5 | 19.5 | 19.5 | 5.25 | 780 | 0.0 |
| 31 | FIDE 3673090 | 0 | — | +?N | −9B | −24N | −30B | −28N | +35B | =29N | 2.5 | 17.0 | 17.0 | 2.50 | 712 | 0.0 |
| 32 | Ortiz Vinueza, Adrian Eduardo | 0 | ECU | −13N | +34B | −11N | −21B | −29N | F | +?B | 2.0 | 17.0 | 17.0 | 2.00 | 634 | 0.0 |
| 33 | Paucar Pilataxi, Carlos Andres | 0 | ECU | −11N | +35B | −26N | −25B | −34N | +?B | −28N | 2.0 | 16.5 | 16.5 | 1.00 | 635 | 0.0 |
| 34 | FIDE 3664155 | 0 | — | −10B | −32N | −20B | −?N | +33B | +?N | −27B | 2.0 | 15.0 | 15.0 | 2.00 | 780 | 0.0 |
| 35 | FIDE 3673138 | 0 | — | −2B | −33N | −?B | F | −?N | −31N | +?B | 1.0 | 10.5 | 10.5 | 0.00 | 713 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Garay Huillca, Alisson JordanaECU+52.05.5 pts · #1
- 2Ona Morales, Isaac JeremiasECU+30.06.0 pts · #2
- 3Guayasamin Yanez, William MateoECU+18.46.0 pts · #6
Top rating losers
- 1Trujillo Crespo, Deivid CalebECU-49.24.0 pts · #29
- 2Morocho Defaz, Yanick AlejandroECU-38.04.0 pts · #10
- 3Aucay Cabrera, Javier SebastianECU-26.04.5 pts · #13