I Campeonato Nacional e Internacional de Ajedrez Monterrey 2025 - Sub 15
30 players participated in this 6-round tournament, held from 16 Oct 2025 to 19 Oct 2025 in N L, Monterrey, Mexico. Top 10 Elo average was 1713, and top seed was Rodrigo Borjon Garza (🇲🇽 MEX, 1877).
Omar Orduno Gonzalez (🇲🇽 MEX, 1670) won with 5.0/6, ahead of Luis Mauricio Gomez Martinez (4.5) and Juan Eduardo Arredondo Pech (4.5). Orduno Gonzalez clinched sole first place in the final round.
The biggest upset came in round 6: Juan Daniel Dominguez Sanchez (1462) beat Eberth Emmanuel Obele Cerda (1620), a +158-point gap.
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsOmar Orduno Gonzalez led from R4; +0.5-point edge over the runner-up.
Omar Orduno Gonzalez held the sole lead from R4 through R6 without losing it.
Omar Orduno Gonzalez lost to Rodrigo Borjon Garza (Black).
Omar Orduno Gonzalez 4 wins (R1–R4)Rodrigo Borjon Garza 4 wins (R2–R5)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Omar Orduno Gonzalez | * | 0 | — | 1 |
| 2Rodrigo Borjon Garza | 1 | * | — | ½ |
| 3Luis Mauricio Gomez Martinez | — | — | * | — |
| 4Juan Eduardo Arredondo Pech | 0 | ½ | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Orduno Gonzalez, Omar | 1670 | MEX | +14B | +3N | +7N | +5B | −4N | +6B | 5.0 | 21.5 | 24.5 | 20.00 | 1983 | +93.2 |
| 2 | Gomez Martinez, Luis Mauricio | 1674 | MEX | +12N | =5B | +10N | +7B | −6N | +9B | 4.5 | 19.5 | 23.0 | 16.75 | 1818 | +38.4 |
| 3 | Arredondo Pech, Juan Eduardo | 1744 | MEX | +23N | −1B | +9N | +19B | +11N | =4B | 4.5 | 19.0 | 21.0 | 13.75 | 1739 | -0.8 |
| 4 | Borjon Garza, Rodrigo | 1877 | MEX | F | +22N | +13B | +6N | +1B | =3N | 4.5 | 18.5 | 18.5 | 16.25 | 2051 | +30.4 |
| 5 | Uvalle Morales, Daniel Isaac | 1745 | MEX | +27B | =2N | +26B | −1N | +18B | +13N | 4.5 | 16.5 | 18.0 | 10.75 | 1678 | -11.2 |
| 6 | Salazar Rodriguez, Benito | 1703 | MEX | +19N | +15B | +8N | −4B | +2B | −1N | 4.0 | 21.0 | 23.5 | 14.00 | 1722 | +3.6 |
| 7 | Gonzalez Cauich, Kevin Manuel | 1679 | MEX | +17B | +21N | −1B | −2N | +26B | +15N | 4.0 | 18.0 | 19.5 | 10.00 | 1648 | -6.0 |
| 8 | Aldape Aleman, Jaime Giancarlo | 0 | MEX | +20B | +16N | −6B | −13N | +22B | +18N | 4.0 | 15.0 | 17.0 | 10.00 | 1650 | 0.0 |
| 9 | Sanchez Dzib, Angel Eliazin | 1669 | MEX | =16B | +18N | −3B | +14N | +13B | −2N | 3.5 | 18.0 | 20.5 | 10.00 | 1618 | -13.2 |
| 10 | Horta Pacheco, Emiliano | 1552 | MEX | =18B | +20N | −2B | =26N | +14B | =11N | 3.5 | 16.0 | 17.5 | 9.25 | 1747 | +31.6 |
| 11 | Almazan Sequera, Gerardo | 0 | MEX | −13N | +23B | +27N | +21N | −3B | =10B | 3.5 | 15.5 | 17.0 | 7.75 | 1555 | 0.0 |
| 12 | FIDE 550012690 | 0 | — | −2B | =17N | +16B | −18N | +28N | +19B | 3.5 | 15.5 | 16.5 | 8.00 | 1568 | 0.0 |
| 13 | Guardiola Lopez, Luis Emilio | 1695 | MEX | +11B | +29N | −4N | +8B | −9N | −5B | 3.0 | 20.0 | 21.0 | 8.50 | 964 | -48.4 |
| 14 | Dimas Lozano, Diego Matias | 1510 | MEX | −1N | +30B | +15N | −9B | −10N | +23B | 3.0 | 17.0 | 17.0 | 5.00 | 1446 | -14.0 |
| 15 | Garza Garza, Francisco | 1666 | MEX | +25B | −6N | −14B | +17N | +21B | −7B | 3.0 | 16.5 | 18.5 | 7.50 | 1427 | -50.0 |
| 16 | Dominguez Sanchez, Juan Daniel | 1462 | MEX | =9N | −8B | −12N | +24B | =17B | +22N | 3.0 | 16.0 | 18.0 | 7.25 | 1838 | +39.2 |
| 17 | Gomez Lazo, Ricardo Antonio | 0 | MEX | −7N | =12B | +24N | −15B | =16N | +28B | 3.0 | 15.5 | 16.5 | 6.25 | 1328 | 0.0 |
| 18 | Montenegro Quiroz, Luis Eduardo | 0 | MEX | =10N | −9B | +23N | +12B | −5N | −8B | 2.5 | 19.0 | 21.0 | 7.25 | 1382 | 0.0 |
| 19 | Villanueva Segundo, Victor Isaac | 0 | MEX | −6B | +25N | +22B | −3N | =20B | −12N | 2.5 | 16.5 | 18.5 | 5.25 | 1598 | 0.0 |
| 20 | Gonzalez Echevarria, Fernando | 1674 | MEX | −8N | −10B | +30N | +25B | =19N | F | 2.5 | 13.5 | 13.5 | 3.25 | 752 | -26.8 |
| 21 | Hernandez Guerrero, Sergio Christ | 1581 | MEX | +30N | −7B | +28N | −11B | −15N | =24B | 2.5 | 13.5 | 13.5 | 2.00 | 871 | -30.4 |
| 22 | Obele Cerda, Eberth Emmanuel | 1620 | MEX | +24N | −4B | −19N | +27B | −8N | −16B | 2.0 | 16.0 | 17.5 | 3.50 | 870 | -35.6 |
| 23 | FIDE 29631149 | 0 | — | −3B | −11N | −18B | +30N | +29B | −14N | 2.0 | 14.5 | 14.5 | 1.00 | 831 | 0.0 |
| 24 | Cepeda Cardona, Ivan | 0 | MEX | −22B | =27N | −17B | −16N | +25B | =21N | 2.0 | 12.5 | 14.0 | 4.00 | 1282 | 0.0 |
| 25 | Lujan Salas, Diego | 0 | MEX | −15N | −19B | +29B | −20N | −24N | +30B | 2.0 | 11.0 | 11.0 | 1.00 | 870 | 0.0 |
| 26 | Margain Benavides, Miguel | 0 | MEX | +28B | F | −5N | =10B | −7N | F | 1.5 | 15.5 | 15.5 | 2.75 | 1385 | 0.0 |
| 27 | FIDE 29631106 | 0 | — | −5N | =24B | −11B | −22N | +30B | −29N | 1.5 | 13.0 | 13.0 | 1.00 | 883 | 0.0 |
| 28 | FIDE 550012738 | 0 | — | −26N | F | −21B | +29N | −12B | −17N | 1.0 | 11.5 | 11.5 | 1.00 | 783 | 0.0 |
| 29 | FIDE 550012720 | 0 | — | F | −13B | −25N | −28B | −23N | +27B | 1.0 | 9.5 | 9.5 | 1.50 | 891 | 0.0 |
| 30 | FIDE 550012703 | 0 | — | −21B | −14N | −20B | −23B | −27N | −25N | 0.0 | 12.0 | 13.5 | 0.00 | 792 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Orduno Gonzalez, OmarMEX+93.25.0 pts · #1
- 2Dominguez Sanchez, Juan DanielMEX+39.23.0 pts · #10
- 3Gomez Martinez, Luis MauricioMEX+38.44.5 pts · #3
- 1Garza Garza, FranciscoMEX-50.03.0 pts · #16
- 2Guardiola Lopez, Luis EmilioMEX-48.43.0 pts · #24
- 3Obele Cerda, Eberth EmmanuelMEX-35.62.0 pts · #30
- R6+158 Elo gap
- R3+156 Elo gap
- R2+122 Elo gap