I torneo IRT sub 2400 club AJEZA, Antofagasta 2026
35 players participated in this 5-round tournament, held from 18 Apr 2026 to 19 Apr 2026 in Antofagasta, Chile. 3 federations represented. Top 10 Elo average was 1735, and top seed was Cristian Egana Arriagada (🇨🇱 CHI, 1855).
Cristian Egana Arriagada (🇨🇱 CHI, 1855) won with 4.5/5, ahead of Cristian Toloza Humeres (4.5) and Maria Belen Carvajal Mendoza (4.0). Egana Arriagada shared the lead from round 1, winning on tie-break.
The biggest upset came in round 5: Ricardo Elias Irribarra Mendoza (1565) beat Victor Enriquez Godoy (1838), a +273-point gap.
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How it unfolded
Top 6 · 5 roundsTight race until R5; 2 players tied at 4.5/5, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 2 at the finish.
2 players finish on 4.5/5. Egana Arriagada takes the title on Buchholz Cut1 (16.5).
Cristian Egana Arriagada drew with Cristian Toloza Humeres (White).
Cristian Egana Arriagada 4 wins (R1–R4)Cristian Toloza Humeres 4 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Cristian Egana Arriagada | * | ½ | — | 1 |
| 2Cristian Toloza Humeres | ½ | * | — | — |
| 3Felipe Ignacio Ortiz Diaz | — | — | * | — |
| 4Maria Belen Carvajal Mendoza | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Egana Arriagada, Cristian | 1855 | CHI | +35B | +4N | +5B | +3N | =2B | 4.5 | 16.5 | 16.5 | 14.25 | 2048 | +15.6 |
| 2 | Toloza Humeres, Cristian | 1716 | CHI | +34B | +8N | +27B | +7N | =1N | 4.5 | 12.0 | 12.0 | 9.75 | 2040 | +29.4 |
| 3 | Carvajal Mendoza, Maria Belen | 1816 | CHI | +25B | +9N | +17B | −1B | +12N | 4.0 | 13.0 | 15.0 | 10.50 | 1771 | -2.8 |
| 4 | Irribarra Mendoza, Ricardo Elias | 1565 | CHI | +19N | −1B | +11N | +22B | +7B | 4.0 | 13.0 | 15.0 | 10.50 | 1847 | +42.0 |
| 5 | Zenteno Quinteros, Ignacio Andres | 1749 | CHI | +31N | +26B | −1N | +9B | +10N | 4.0 | 12.5 | 13.0 | 8.50 | 1711 | -2.4 |
| 6 | Ortiz Diaz, Felipe Ignacio | 1782 | CHI | +23B | +22N | −7B | +18N | +8B | 4.0 | 10.5 | 12.5 | 9.50 | 1840 | +15.6 |
| 7 | Enriquez Godoy, Victor | 1838 | CHI | +14N | +12B | +6N | −2B | −4N | 3.0 | 15.5 | 18.5 | 10.00 | 1652 | -37.2 |
| 8 | Ajata Ordonez, Nicolas Rayco | 1472 | BOL | +29N | −2B | +24N | +13B | −6N | 3.0 | 13.5 | 14.5 | 6.00 | 1564 | +11.6 |
| 9 | Huanca Vargas, Luis Faviano | 1488 | CHI | +33N | −3B | +14N | −5N | +23B | 3.0 | 13.0 | 13.5 | 5.50 | 983 | -12.4 |
| 10 | Nava Torrez, Adiel Bernabe | 0 | CHI | −13N | +15B | +26N | +20B | −5B | 3.0 | 12.5 | 14.5 | 7.50 | 1548 | 0.0 |
| 11 | FIDE 3485250 | 0 | — | =18B | +21N | −4B | +27N | =16B | 3.0 | 12.0 | 13.5 | 6.75 | 1673 | 0.0 |
| 12 | Valencia Gomez, Javier Ignacio | 1546 | CHI | +30B | −7N | +23B | +17N | −3B | 3.0 | 11.5 | 12.0 | 5.00 | 1567 | +0.4 |
| 13 | Lopez Vivanco, Gregorio | 1570 | CHI | +10B | −17N | +25B | −8N | +18B | 3.0 | 11.0 | 13.0 | 7.50 | 1442 | -21.6 |
| 14 | FIDE 3462382 | 0 | — | −7B | +30N | −9B | +34N | +24B | 3.0 | 8.5 | 8.5 | 2.50 | 863 | 0.0 |
| 15 | FIDE 3482715 | 0 | — | −17B | −10N | +30B | +32N | +22N | 3.0 | 8.0 | 8.5 | 3.00 | 1449 | 0.0 |
| 16 | Marquez Quispe, Matias Josue | 0 | CHI | =27B | +?N | −18B | +31N | =11N | 3.0 | 7.5 | 7.5 | 2.75 | 1535 | 0.0 |
| 17 | Cartajena Nef, Daniel Andres | 1423 | CHI | +15N | +13B | −3N | −12B | =19N | 2.5 | 13.0 | 15.5 | 7.25 | 1519 | +11.6 |
| 18 | Valencia Oyarzun, Mario Jose | 1805 | CHI | =11N | +24B | +16N | −6B | −13N | 2.5 | 13.0 | 15.0 | 6.50 | 876 | -52.8 |
| 19 | FIDE 3491420 | 0 | — | −4B | +35N | −22B | +?N | =17B | 2.5 | 8.5 | 8.5 | 1.25 | 1214 | 0.0 |
| 20 | Castillo Ahumada, Yessica | 1457 | CHI | =21B | −27N | +32B | −10N | +31B | 2.5 | 7.5 | 8.0 | 2.25 | 850 | -5.0 |
| 21 | Rodriguez, Bastian | 0 | ARG | =20N | −11B | F | +30N | +27B | 2.5 | 7.5 | 7.5 | 3.25 | 1574 | 0.0 |
| 22 | Campe Sanchez, Diego | 1474 | CHI | +28B | −6B | +19N | −4N | −15B | 2.0 | 13.5 | 14.5 | 3.50 | 874 | -20.8 |
| 23 | FIDE 3479471 | 0 | — | −6N | +28B | −12N | +26B | −9N | 2.0 | 12.0 | 13.0 | 3.00 | 1365 | 0.0 |
| 24 | Ugarte Silva, Rodolfo | 0 | CHI | +?B | −18N | −8B | +25N | −14N | 2.0 | 10.5 | 10.5 | 2.00 | 839 | 0.0 |
| 25 | FIDE 3490297 | 0 | — | −3N | +33B | −13N | −24B | +32N | 2.0 | 9.5 | 10.0 | 1.00 | 893 | 0.0 |
| 26 | Ballesteros Guevara, Anna Christina | 1415 | CHI | +32B | −5N | −10B | −23N | +34B | 2.0 | 9.5 | 9.5 | 0.50 | 949 | -4.8 |
| 27 | Osnayo Calle, Nelson Gustavo | 1650 | CHI | =16N | +20B | −2N | −11B | −21N | 1.5 | 13.0 | 15.5 | 4.00 | 1587 | -6.4 |
| 28 | Rada Suazo, Analia | 0 | CHI | −22N | −23N | F | +33B | −?B | 1.0 | 4.5 | 4.5 | 0.50 | 674 | 0.0 |
| 29 | FIDE 3474135 | 0 | — | −8B | +34N | F | F | F | 1.0 | 3.5 | 3.5 | 0.00 | 672 | 0.0 |
| 30 | FIDE 81481659 | 0 | — | −12N | −14B | −15N | −21B | =33N | 0.5 | 11.5 | 12.0 | 0.25 | 746 | 0.0 |
| 31 | FIDE 3479080 | 0 | — | −5B | =32N | F | −16B | −20N | 0.5 | 10.5 | 11.0 | 0.25 | 803 | 0.0 |
| 32 | FIDE 3488217 | 0 | — | −26N | =31B | −20N | −15B | −25B | 0.5 | 9.5 | 10.0 | 0.25 | 636 | 0.0 |
| 33 | FIDE 3489809 | 0 | — | −9B | −25N | −?B | −28N | =30B | 0.5 | 6.5 | 6.5 | 0.25 | 688 | 0.0 |
| 34 | FIDE 3474100 | 0 | — | −2N | −29B | F | −14B | −26N | 0.0 | 10.5 | 11.5 | 0.00 | 766 | 0.0 |
| 35 | FIDE 3475379 | 0 | — | −1N | −19B | F | F | F | 0.0 | 7.0 | 7.0 | 0.00 | 1055 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Irribarra Mendoza, Ricardo EliasCHI+42.04.0 pts · #6
- 2Toloza Humeres, CristianCHI+29.44.5 pts · #2
- 3Ortiz Diaz, Felipe IgnacioCHI+15.64.0 pts · #3
- 1Valencia Oyarzun, Mario JoseCHI-52.82.5 pts · #26
- 2Enriquez Godoy, VictorCHI-37.23.0 pts · #8
- 3Lopez Vivanco, GregorioCHI-21.63.0 pts · #17
- R5+273 Elo gap
- R5+235 Elo gap
- R2+147 Elo gap