I Campeonato Nacional e Internacional de Ajedrez Monterrey 2025 - Segunda
Open SwissStandard
50 players participated in this 8-round tournament, held from 15 Oct 2025 to 19 Oct 2025 in N L, Monterrey, Mexico. 8 titled players from 3 federations. Top 10 Elo average was 2116, and top seed was Angel Ivan Quiroga Jaquez (🇲🇽 MEX, CM, 2174).
David Avila Miguel (🇲🇽 MEX, 2138) won with 6.5/8, ahead of Efren Abarca Guzman (6.0) and Irving A Miranda Talavera (6.0). Avila Miguel shared the lead from round 6 and won solo starting round 7.
The biggest upset came in round 2: Hugo Israel Hernandez Santos (1833) beat Jose Angel Hernandez Luna (CM, 2111), a +278-point gap.
Location
🇲🇽N L, Monterrey, Mexico
Dates
15 Oct 2025 → 19 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 8 rounds
Titled players · 8
IM×1
FM×4
CM×3
Federations · 3 represented
🇲🇽Mexico×47
FIDE (no federation)×2
🇨🇴Colombia×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 8 roundsDavid Avila Miguel led from R4; +0.5-point edge over the runner-up.
Co-leaders
18
6
2
1
1
2
1
1
Avila Miguel6.5Abarca Guzman6Hernandez Luna6Miranda Talavera6Gutierrez Carmona5.5Gonzalez Amezquita5.5— ex-leaders:Quiroga Jaquezled R5, #7
R5 · LEADER CHANGE17 Oct
CM Angel Ivan Quiroga Jaquez takes the sole lead (4.5/5).
R8 · HEAD-TO-HEAD · WINNER VS 2ND
David Avila Miguel drew with Efren Abarca Guzman (White).
WIN STREAKS · 2 top finishers
David Avila Miguel 4 wins (R1–R4)CM Jose Angel Hernandez Luna 4 wins (R3–R6)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1David Avila Miguel | * | ½ | 1 | — |
| 2Efren Abarca Guzman | ½ | * | — | ½ |
| 3CMJose Angel Hernandez Luna | 0 | — | * | — |
| 4Irving A Miranda Talavera | — | ½ | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Avila Miguel, David | 2138 | MEX | +34N | +39B | +20N | +13B | −5N | +7B | +4N | =2B | 6.5 | 34.5 | 37.0 | 28.50 | 2251 | +22.2 |
| 2 | Abarca Guzman, Efren | 1975 | MEX | +32N | =7B | +18N | =3B | =9N | +16N | +35B | =1N | 6.0 | 35.5 | 38.5 | 27.00 | 2236 | +55.0 |
| 3 | Miranda Talavera, Irving A | 2071 | MEX | +31B | =22N | +42B | =2N | =6B | +30N | =5N | +19B | 6.0 | 32.5 | 35.0 | 24.50 | 2139 | +15.0 |
| 4 | Hernandez Luna, Jose AngelCM | 2111 | MEX | +41N | −20B | +44N | +23B | +21N | +5B | −1B | +8N | 6.0 | 31.5 | 33.5 | 23.00 | 2164 | +11.8 |
| 5 | Quiroga Jaquez, Angel IvanCM | 2174 | MEX | +40B | +14N | =8B | +30N | +1B | −4N | =3B | =6N | 5.5 | 37.0 | 39.5 | 25.25 | 2173 | 0.0 |
| 6 | Gutierrez Carmona, Juan AlejandroFM | 2041 | MEX | +37N | =17B | +38N | =8B | =3N | +10N | =7B | =5B | 5.5 | 34.5 | 37.0 | 23.75 | 2142 | +22.0 |
| 7 | Gonzalez Amezquita, Gustavo | 2118 | MEX | +46B | =2N | =22B | +24N | +35B | −1N | =6N | +11B | 5.5 | 34.0 | 35.5 | 21.25 | 2149 | +6.6 |
| 8 | Gutierrez Yanez, Carlos | 1943 | MEX | +47N | +12B | =5N | =6N | =10B | =9B | +24N | −4B | 5.0 | 35.5 | 37.0 | 20.50 | 2127 | +39.0 |
| 9 | Medina Calderon, Victor Manuel | 2033 | MEX | +28B | +48N | −13B | +22N | =2B | =8N | −19B | +23B | 5.0 | 32.0 | 33.0 | 18.50 | 2002 | -6.8 |
| 10 | Carlos Arriaga, Jesus Roberto | 2147 | MEX | =38N | +19B | =21N | +20B | =8N | −6B | =43N | +12B | 5.0 | 30.0 | 32.5 | 20.00 | 2028 | -22.0 |
| 11 | Rangel Hernandez, Carlos Alberto | 1915 | MEX | =18N | −38B | +45N | +17B | =12N | +15B | +21N | −7N | 5.0 | 30.0 | 32.0 | 19.50 | 2054 | +25.8 |
| 12 | Fogo Esquivel, Levi Kalani AlexanderFM | 2081 | MEX | +23B | −8N | +27B | =14N | =11B | =22N | +30B | −10N | 4.5 | 31.5 | 35.0 | 18.25 | 1994 | -32.4 |
| 13 | Rolandi Rodriguez, Dario | 1908 | MEX | +25N | +24B | +9N | −1N | −16B | −21B | +34N | =43B | 4.5 | 31.0 | 33.5 | 17.25 | 2051 | +62.4 |
| 14 | Riera Fregoso, Ferran | 1990 | MEX | +36N | −5B | +32N | =12B | −15N | +38B | =27N | =16B | 4.5 | 29.5 | 32.0 | 15.50 | 1975 | -2.4 |
| 15 | Lozano Garay, David Rey | 2092 | MEX | −20N | +28B | +39N | −21B | +14B | −11N | =26B | +30N | 4.5 | 29.0 | 31.5 | 16.50 | 1958 | -53.6 |
| 16 | Morlett Ovalle, Cris Sebastian | 2026 | MEX | −17N | +37B | =41N | +38B | +13N | −2B | =22B | =14N | 4.5 | 29.0 | 31.5 | 15.50 | 1953 | -14.8 |
| 17 | Angeles Vera, Mario Alberto | 1861 | MEX | +16B | =6N | −30B | −11N | =26B | =40N | +48B | +31N | 4.5 | 28.5 | 29.5 | 15.00 | 1966 | +47.2 |
| 18 | Vega Garcia, Jorge ArturoFM | 2119 | MEX | =11B | +26N | −2B | =42N | =31B | −19N | +38B | +40N | 4.5 | 28.0 | 30.5 | 14.50 | 1924 | -36.4 |
| 19 | Gonzalez Rodriguez, Luis Reyes | 1858 | MEX | F | −10N | =33B | +50N | +40B | +18B | +9N | −3N | 4.5 | 26.5 | 26.5 | 13.75 | 2033 | +34.2 |
| 20 | Hernandez Santos, Hugo Israel | 1833 | MEX | +15B | +4N | −1B | −10N | +25B | −35N | +29B | −26N | 4.0 | 34.0 | 37.0 | 18.50 | 2029 | +37.2 |
| 21 | Del Valle Uribe, David | 1890 | MEX | +33B | =27N | =10B | +15N | −4B | +13N | −11B | −35N | 4.0 | 32.5 | 35.5 | 17.00 | 1965 | +15.2 |
| 22 | Flores Irurso, Paul Josue | 1963 | MEX | F | =3B | =7N | −9B | +36N | =12B | =16N | +24B | 4.0 | 32.5 | 32.5 | 17.25 | 2055 | +19.0 |
| 23 | Briones Valdes, Alejandro | 1920 | MEX | −12N | +47B | +25B | −4N | −24B | +42N | +28B | −9N | 4.0 | 30.0 | 31.5 | 12.00 | 1959 | +8.6 |
| 24 | Navarro Segura, RobertoIM | 2000 | MEX | +49B | −13N | +48B | −7B | +23N | +29N | −8B | −22N | 4.0 | 28.0 | 29.0 | 10.00 | 1900 | -10.2 |
| 25 | Martinez, Jorge AlexanderFM | 2089 | COL | −13B | F | −23N | +37B | −20N | +41B | +36N | +27B | 4.0 | 25.0 | 25.0 | 12.50 | 1885 | -32.6 |
| 26 | Garcia Garcia, Josue | 1869 | MEX | F | −18B | +49N | −41B | =17N | +32B | =15N | +20B | 4.0 | 24.5 | 24.5 | 13.00 | 1966 | +17.8 |
| 27 | Solorio Valderrama, Noe | 1754 | FID | +50N | =21B | −12N | =34B | =43N | +44B | =14B | −25N | 4.0 | 24.5 | 24.5 | 9.00 | 1918 | +32.8 |
| 28 | Guzman Araiza, Javier | 1900 | MEX | −9N | −15N | −29B | +46N | +50B | +39B | −23N | +34B | 4.0 | 24.5 | 24.5 | 7.00 | 1883 | -2.0 |
| 29 | Juarez Garcia, Abelardo | 1701 | MEX | −39N | −41B | +28N | +45B | +34N | −24B | −20N | +36B | 4.0 | 23.0 | 25.0 | 12.00 | 1837 | +45.6 |
| 30 | Garcia Hernandez, Yazmany G | 1975 | MEX | =42N | +45B | +17N | −5B | +41N | −3B | −12N | −15B | 3.5 | 30.0 | 32.0 | 10.25 | 1893 | -16.4 |
| 31 | Vargas Saldana, Rafael | 1786 | MEX | −3N | +50B | −34N | +39B | =18N | −43B | +44N | −17B | 3.5 | 25.0 | 25.0 | 6.75 | 1868 | +32.0 |
| 32 | Camacho Rodriguez, Victor Abel | 1753 | MEX | −2B | +46N | −14B | −40N | +49B | −26N | =37B | +38N | 3.5 | 24.0 | 25.0 | 6.50 | 1872 | +47.2 |
| 33 | Aguilar Huang, Julio Alberto | 1709 | MEX | −21N | =34B | =19N | =44B | −38N | −36B | +49N | +39B | 3.5 | 21.5 | 22.5 | 8.25 | 1837 | +51.2 |
| 34 | Rodriguez Aguilar, Alan | 1935 | MEX | −1B | =33N | +31B | =27N | −29B | +47N | −13B | −28N | 3.0 | 30.0 | 31.5 | 8.75 | 1733 | -43.6 |
| 35 | Quiroga Garza, Juan ManuelCM | 2089 | MEX | F | F | +40B | F | −7N | +20B | −2N | +21B | 3.0 | 24.5 | 24.5 | 10.50 | 2032 | -6.6 |
| 36 | Gutierrez Rivera, Jared Esau | 1707 | MEX | −14B | −40N | +46B | +48N | −22B | +33N | −25B | −29N | 3.0 | 24.0 | 25.0 | 6.00 | 1808 | +31.6 |
| 37 | Velarde Hernandez, Paulina Yunuen | 1830 | MEX | −6B | −16N | +47B | −25N | −39N | +50B | =32N | =44B | 3.0 | 23.5 | 23.5 | 4.25 | 1778 | -20.8 |
| 38 | Huerta Osorno, Erin | 1866 | MEX | =10B | +11N | −6B | −16N | +33B | −14N | −18N | −32B | 2.5 | 32.5 | 36.0 | 11.00 | 1821 | -21.2 |
| 39 | Salazar Reyes, Diego | 1943 | MEX | +29B | −1N | −15B | −31N | +37B | −28N | =42B | −33N | 2.5 | 29.0 | 31.5 | 8.25 | 1727 | -86.6 |
| 40 | Encinas Varela, David | 1984 | MEX | −5N | +36B | −35N | +32B | −19N | =17B | F | −18B | 2.5 | 28.5 | 31.0 | 8.75 | 1835 | -27.8 |
| 41 | Lopez Torres, Abraham Ezequiel | 1894 | MEX | −4B | +29N | =16B | +26N | −30B | −25N | F | F | 2.5 | 28.5 | 28.5 | 10.25 | 1905 | +1.6 |
| 42 | Aguirre Alvarez, Andres | 1796 | MEX | =30B | F | −3N | =18B | −44N | −23B | =39N | +48B | 2.5 | 23.5 | 23.5 | 6.25 | 1868 | +21.6 |
| 43 | Chan Hernandez, Julio Francisco | 1954 | MEX | F | F | F | F | =27B | +31N | =10B | =13N | 2.5 | 20.0 | 20.0 | 10.25 | 1994 | +4.2 |
| 44 | Salazar Muro, Jose Antonio | 1977 | MEX | F | F | −4B | =33N | +42B | −27N | −31B | =37N | 2.0 | 22.5 | 22.5 | 5.75 | 1705 | -42.4 |
| 45 | Penner, Leonardo | 0 | FID | F | −30N | −11B | −29N | =46B | −48N | +50N | =47B | 2.0 | 16.5 | 16.5 | 1.50 | 1616 | 0.0 |
| 46 | Cruz Plazola, Demetrio | 1943 | MEX | −7N | −32B | −36N | −28B | =45N | −49B | F | +50N | 1.5 | 19.0 | 19.0 | 1.00 | 1541 | -116.4 |
| 47 | Hernandez Narvaez, Alberto | 1666 | MEX | −8B | −23N | −37N | F | +48B | −34B | F | =45N | 1.5 | 18.0 | 18.0 | 2.00 | 1642 | -6.4 |
| 48 | Becerra Lopez, Rodrigo Francisco | 1786 | MEX | F | −9B | −24N | −36B | −47N | +45B | −17N | −42N | 1.0 | 22.5 | 22.5 | 2.00 | 1044 | -103.2 |
| 49 | Romero Chapul, Josue David | 1862 | MEX | −24N | F | −26B | F | −32N | +46N | −33B | F | 1.0 | 16.5 | 16.5 | 1.50 | 1614 | -31.0 |
| 50 | Sepulveda Rodriguez, Juan Argel | 1428 | MEX | −27B | −31N | F | −19B | −28N | −37N | −45B | −46B | 0.0 | 22.5 | 22.5 | 0.00 | 1009 | -22.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Rolandi Rodriguez, DarioMEX+62.44.5 pts · #15
- 2Abarca Guzman, EfrenMEX+55.06.0 pts · #2
- 3Aguilar Huang, Julio AlbertoMEX+51.23.5 pts · #30
Top rating losers
- 1Cruz Plazola, DemetrioMEX-116.41.5 pts · #46
- 2Becerra Lopez, Rodrigo FranciscoMEX-103.21.0 pts · #50
- 3Salazar Reyes, DiegoMEX-86.62.5 pts · #40
Biggest upsets
- R2+278 Elo gap
- R6+261 Elo gap
- R1+259 Elo gap