I Campeonato Nacional e Internacional de Ajedrez Monterrey 2025 - Segunda

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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

Top seed

🇲🇽CMAngel Ivan Quiroga Jaquez2174

Avg top 10

2,116

Participants

Titled players · 8

IM×1

FM×4

CM×3

Federations · 3 represented

🇲🇽Mexico×47

FIDE (no federation)×2

🇨🇴Colombia×1

Top 3

🥇
David Avila Miguel
🇲🇽MEX·2138
6.5pts·2251perf+22.2
🥈
Efren Abarca Guzman
🇲🇽MEX·1975
6.0pts·2236perf+55.0
🥉
Irving A Miranda Talavera
🇲🇽MEX·2071
6.0pts·2139perf+15.0

How it unfolded

Top 6 · 8 rounds

David Avila Miguel led from R4; +0.5-point edge over the runner-up.

Co-leaders

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
+62.4
4.5 pts · #15
2Abarca Guzman, EfrenMEX
+55.0
6.0 pts · #2
3Aguilar Huang, Julio AlbertoMEX
+51.2
3.5 pts · #30

Top rating losers

1Cruz Plazola, DemetrioMEX
-116.4
1.5 pts · #46
2Becerra Lopez, Rodrigo FranciscoMEX
-103.2
1.0 pts · #50
3Salazar Reyes, DiegoMEX
-86.6
2.5 pts · #40

Biggest upsets

R2+278 Elo gap
Hernandez Santos, Hugo Israel1833 beat CMHernandez Luna, Jose Angel2111
R6+261 Elo gap
Gonzalez Rodriguez, Luis Reyes1858 beat FMVega Garcia, Jorge Arturo2119
R1+259 Elo gap
Hernandez Santos, Hugo Israel1833 beat Lozano Garay, David Rey2092