XIV Torneo Internacional y Nacional Abierto de Ajedrez de la Ciudad de Mexico. Sub 11
Open SwissStandard
44 players participated in this 7-round tournament, held from 13 Sept 2025 to 16 Sept 2025 in CDM, Ciudad de Mexico, Mexico. Top 10 Elo average was 1546, and top seed was Amaury Shamed Juarez Gordillo (🇲🇽 MEX, 1597).
Diego Martinez Guzman (🇲🇽 MEX, 1453) won with 6.0/7, ahead of Liliana Reyes Populus (5.5) and Amaury Shamed Juarez Gordillo (5.5). Martinez Guzman shared the lead from round 6 and broke clear in the final round.
The biggest upset came in round 3: Natalia Nunez Laredo (1440) beat Daniel Sarue Perez (1595), a +155-point gap.
Location
🇲🇽CDM, Ciudad de Mexico, Mexico
Dates
13 Sept 2025 → 16 Sept 2025
Time control
Standard: 65 minutes for game
System
Swiss · 7 rounds
Federations · 1 represented
🇲🇽Mexico×37
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 7 roundsDiego Martinez Guzman led from R7; +0.5-point edge over the runner-up.
Co-leaders
21
10
3
1
2
4
1
R7 · LEADER CHANGE16 Sept
Diego Martinez Guzman takes the sole lead (6.0/7).
R4 · HEAD-TO-HEAD · WINNER VS 2ND
Diego Martinez Guzman lost to Liliana Reyes Populus (Black).
WIN STREAKS · 3 top finishers
Diego Martinez Guzman 3+3 wins (R1–R3, R5–R7)Liliana Reyes Populus 4 wins (R1–R4)Dante Vladimir Flores Ojeda 3 wins (R5–R7)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Diego Martinez Guzman | * | 0 | 1 | — |
| 2Liliana Reyes Populus | 1 | * | — | ½ |
| 3Dante Vladimir Flores Ojeda | 0 | — | * | — |
| 4Amaury Shamed Juarez Gordillo | — | ½ | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Martinez Guzman, Diego | 1453 | MEX | +?N | +4B | +5B | −2N | +40B | +15N | +6B | 6.0 | 26.5 | 26.5 | 21.00 | 1572 | 0.0 |
| 2 | Reyes Populus, Liliana | 0 | MEX | +33B | +34N | +8B | +1B | −6N | +5N | =3B | 5.5 | 29.0 | 32.0 | 24.25 | 1525 | 0.0 |
| 3 | Juarez Gordillo, Amaury Shamed | 1597 | MEX | +36B | +20N | =22B | +16N | +10B | =6N | =2N | 5.5 | 26.5 | 29.0 | 22.00 | 1591 | -0.8 |
| 4 | Flores Ojeda, Dante Vladimir | 1551 | MEX | +29B | −1N | +17B | =8N | +35B | +22N | +9N | 5.5 | 25.5 | 28.0 | 19.75 | 2327 | +37.6 |
| 5 | Oi, Natsume | 1529 | MEX | +30N | +23B | −1N | +24B | +7N | −2B | +15N | 5.0 | 27.5 | 30.5 | 19.00 | 2239 | +15.2 |
| 6 | Diaz Rios, Raul Santiago | 1448 | MEX | +44B | +35N | =10B | +22N | +2B | =3B | −1N | 5.0 | 27.5 | 27.5 | 16.50 | 1762 | +33.2 |
| 7 | Rojano Valle, Abraham | 0 | MEX | +9B | +37B | +21N | −10N | −5B | +27N | +16B | 5.0 | 25.0 | 27.5 | 18.00 | 1579 | 0.0 |
| 8 | Mendoza Gonzalez, Ximena Sarahi | 0 | MEX | +43N | +19B | −2N | =4B | =11N | +18B | =12N | 4.5 | 28.0 | 28.5 | 15.75 | 1563 | 0.0 |
| 9 | Lopez Vargas, Juan Pablo | 1498 | MEX | −7N | +32B | +14N | +26B | =12N | +10N | −4B | 4.5 | 27.0 | 30.0 | 17.25 | 1518 | +1.2 |
| 10 | Morales Leija, Leonardo Nicolas | 0 | MEX | +?N | +24B | =6N | +7B | −3N | −9B | +23N | 4.5 | 27.0 | 27.0 | 14.50 | 1246 | 0.0 |
| 11 | Salazar Amaro, Julio Francisco | 1503 | MEX | =17B | =15N | =16B | +36N | =8B | +28N | =13B | 4.5 | 24.0 | 26.5 | 16.00 | 1439 | -3.6 |
| 12 | Hernandez Montoya, Leonardo | 1524 | MEX | =15B | =17N | =36B | +29N | =9B | +40N | =8B | 4.5 | 22.5 | 24.0 | 14.25 | 1476 | -5.6 |
| 13 | Quiroz Ventura, Marco Said | 1501 | MEX | −26N | +38B | +30N | −18B | +42N | +17B | =11N | 4.5 | 20.5 | 21.5 | 12.25 | 1299 | 0.0 |
| 14 | Galindo Martinez, Liam David | 0 | MEX | +?B | =16N | −9B | −35N | +31B | +36N | +22B | 4.5 | 20.0 | 20.0 | 11.00 | 1527 | 0.0 |
| 15 | Nunez Laredo, Natalia | 1440 | MEX | =12N | =11B | +19N | +37B | +18N | −1B | −5B | 4.0 | 28.0 | 30.5 | 15.00 | 1616 | +48.8 |
| 16 | Jimenez Mendoza, Jose Leonardo | 0 | MEX | +25N | =14B | =11N | −3B | +26N | +24B | −7N | 4.0 | 26.5 | 29.5 | 14.50 | 1527 | 0.0 |
| 17 | Oropeza Duenas, Joshua Iker | 0 | MEX | =11N | =12B | −4N | +38B | +19N | −13N | +27B | 4.0 | 26.0 | 28.0 | 13.50 | 1564 | 0.0 |
| 18 | Perez Sabas, Amelia | 0 | MEX | +27B | −22N | +20B | +13N | −15B | −8N | +36B | 4.0 | 23.5 | 26.0 | 14.00 | 1484 | 0.0 |
| 19 | Sarue Perez, Daniel | 1595 | MEX | +28B | −8N | −15B | +33N | −17B | +26N | +35B | 4.0 | 21.5 | 24.0 | 11.50 | 1460 | -14.8 |
| 20 | Ibanez Calva, Ana Karina | 1409 | MEX | +31B | −3B | −18N | −32N | +43B | +42N | +28B | 4.0 | 19.5 | 20.0 | 7.50 | 797 | -10.4 |
| 21 | Freyssinier Romero, Hector Samuel | 0 | MEX | +38N | +26B | −7B | −40N | −28B | +33N | +30N | 4.0 | 19.0 | 20.5 | 11.00 | 1500 | 0.0 |
| 22 | Garcia Solis, Miguel Angel | 1542 | MEX | +41N | +18B | =3N | −6B | +23N | −4B | −14N | 3.5 | 28.0 | 29.5 | 11.75 | 1259 | -41.6 |
| 23 | Medellin Gutierrez, Iker Gabriel | 0 | MEX | +40B | −5N | =35B | +31N | −22B | +25N | −10B | 3.5 | 22.0 | 23.5 | 9.25 | 735 | 0.0 |
| 24 | Cruz Leyva, Axel Raul | 0 | MEX | +42B | −10N | +28B | −5N | +32B | −16N | =40B | 3.5 | 21.0 | 22.0 | 7.75 | 729 | 0.0 |
| 25 | Serrano Vaquero, Juan Gilberto | 0 | MEX | −16B | =31N | +?B | −27N | +29B | −23B | +37N | 3.5 | 19.0 | 19.0 | 7.00 | 1558 | 0.0 |
| 26 | Martinez Hernandez, Ian Mauricio | 1480 | MEX | +13B | −21N | +27B | −9N | −16B | −19B | +39N | 3.0 | 24.0 | 26.0 | 9.50 | 1426 | -8.4 |
| 27 | Ramirez Rivera, Paris Gael | 1546 | MEX | −18N | +44B | −26N | +25B | +30N | −7B | −17N | 3.0 | 22.5 | 22.5 | 6.50 | 680 | -23.6 |
| 28 | Salgado Arce, Ariadne | 0 | MEX | −19N | +43B | −24N | +39B | +21N | −11B | −20N | 3.0 | 22.0 | 22.5 | 6.50 | 702 | 0.0 |
| 29 | Vazquez Jimenez, Diego | 0 | MEX | −4N | +?B | =37N | −12B | −25N | +39B | =31N | 3.0 | 21.0 | 21.0 | 4.75 | 1275 | 0.0 |
| 30 | FIDE 5188032 | 0 | — | −5B | +42N | −13B | +43N | −27B | +32N | −21B | 3.0 | 20.5 | 21.0 | 4.50 | 738 | 0.0 |
| 31 | Carrillo Leyva, Frida Solansh | 0 | MEX | −20N | =25B | +39N | −23B | −14N | +?B | =29B | 3.0 | 20.5 | 20.5 | 5.25 | 609 | 0.0 |
| 32 | Zatarain Castro, Iktan Kenai | 0 | MEX | −37N | −9N | +41B | +20B | −24N | −30B | +44N | 3.0 | 19.0 | 19.0 | 5.50 | 1372 | 0.0 |
| 33 | Jimenez Medrano, Arturo | 0 | MEX | −2N | −39B | +?N | −19B | +38N | −21B | +?N | 3.0 | 17.5 | 17.5 | 2.00 | 794 | 0.0 |
| 34 | Hernandez Macias, Emilio Leon | 1444 | MEX | +39N | −2B | F | F | −37N | +44B | +38N | 3.0 | 13.5 | 13.5 | 4.00 | 769 | -13.2 |
| 35 | Ramirez Morales, Saul | 0 | MEX | F | −6B | =23N | +14B | −4N | +37B | −19N | 2.5 | 25.0 | 25.0 | 8.75 | 1348 | 0.0 |
| 36 | Lazo Maguey, Dylan | 0 | MEX | −3N | +41B | =12N | −11B | +?N | −14B | −18N | 2.5 | 24.5 | 24.5 | 3.75 | 1268 | 0.0 |
| 37 | Suarez Orozco, Santiago Eduardo | 1569 | MEX | +32B | −7N | =29B | −15N | +34B | −35N | −25B | 2.5 | 21.5 | 24.0 | 7.50 | 1442 | -14.0 |
| 38 | Garcia Lopez, Franco | 0 | MEX | −21B | −13N | +?B | −17N | −33B | +41N | −34B | 2.0 | 20.0 | 20.0 | 1.50 | 644 | 0.0 |
| 39 | FIDE 550011944 | 0 | — | −34B | +33N | −31B | −28N | +?B | −29N | −26B | 2.0 | 18.0 | 18.0 | 3.00 | 662 | 0.0 |
| 40 | FIDE 550011952 | 0 | — | −23N | F | F | +21B | −1N | −12B | =24N | 1.5 | 24.5 | 24.5 | 5.75 | 723 | 0.0 |
| 41 | FIDE 29616760 | 0 | — | −22B | −36N | −32N | −?B | +44N | −38B | =43N | 1.5 | 11.5 | 11.5 | 0.25 | 741 | 0.0 |
| 42 | FIDE 550011936 | 0 | — | −24N | −30B | +44N | F | −13B | −20B | −?N | 1.0 | 15.0 | 15.0 | 0.00 | 609 | 0.0 |
| 43 | FIDE 29656729 | 0 | — | −8B | −28N | F | −30B | −20N | −?N | =41B | 0.5 | 16.0 | 16.0 | 0.75 | 609 | 0.0 |
| 44 | FIDE 29676517 | 0 | — | −6N | −27N | −42B | −?N | −41B | −34N | −32B | 0.0 | 16.5 | 16.5 | 0.00 | 679 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Nunez Laredo, NataliaMEX+48.84.0 pts · #3
- 2Flores Ojeda, Dante VladimirMEX+37.65.5 pts · #8
- 3Diaz Rios, Raul SantiagoMEX+33.25.0 pts · #12
Top rating losers
- 1Garcia Solis, Miguel AngelMEX-41.63.5 pts · #26
- 2Ramirez Rivera, Paris GaelMEX-23.63.0 pts · #36
- 3Sarue Perez, DanielMEX-14.84.0 pts · #20
Biggest upsets
- R3+155 Elo gap
- R4+129 Elo gap