Olimpiada Nacional 2025. Sub 20 Femenil. Estandar

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32 players participated in this 6-round tournament, held from 11 Jul 2025 to 13 Jul 2025 in PUE, Puebla, Mexico. 7 titled players. Top 10 Elo average was 1888, and top seed was Paula Sofia Hernandez Diaz (🇲🇽 MEX, WFM, 2007).

Paula Sofia Hernandez Diaz (🇲🇽 MEX, WFM, 2007) won with 5.0/6, ahead of Lhia Itzayana Castellanos Hernandez (5.0) and Erin Huerta Osorno (4.5). Hernandez Diaz took the lead from round 5, winning on tie-break.

The biggest upset came in round 4: Astrid Paredes Caballero (1678) beat Elizabeth Schahrazad Diaz Bartolo (WFM, 1979), a +301-point gap.

Location

🇲🇽PUE, Puebla, Mexico

Dates

11 Jul 2025 → 13 Jul 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 6 rounds

Top seed

🇲🇽WFMPaula Sofia Hernandez Diaz2007

Avg top 10

1,888

Participants

Titled players · 7

WFM×2

WCM×5

Federations · 1 represented

🇲🇽Mexico×32

Top 3

🥇
WFMPaula Sofia Hernandez Diaz
🇲🇽MEX·2007
5.0pts·2060perf+7.2
🥈
WCMLhia Itzayana Castellanos Hernandez
🇲🇽MEX·1918
5.0pts·2006perf+11.8
🥉
Erin Huerta Osorno
🇲🇽MEX·1812
4.5pts·1986perf+54.0

How it unfolded

Top 6 · 6 rounds

Tight race until R5; 2 players tied at 5.0/6, decided on Buchholz.

Co-leaders

Hernandez Diaz5Castellanos Hernandez5Huerta Osorno4.5Hernandez Ortega4.5Guillen Moreno4Olea Valle4— ex-leaders:Conde Maresled R4, #7

R5 · LEADER CHANGE13 Jul

WFM Paula Sofia Hernandez Diaz takes the sole lead (4.5/5).

R6 · TIEBREAK CLUSTER

2 players finish on 5.0/6. Hernandez Diaz takes the title on Buchholz Cut1 (19.5).

WIN STREAKS · 3 top finishers

WFM Paula Sofia Hernandez Diaz 3 wins (R3–R5)WCM Lhia Itzayana Castellanos Hernandez 4 wins (R3–R6)Erin Huerta Osorno 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1WFMPaula Sofia Hernandez Diaz	*	—	½	1
2WCMLhia Itzayana Castellanos Hernandez	—	*	—	—
3Erin Huerta Osorno	½	—	*	—
4WCMCarolina Hernandez Ortega	0	—	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Hernandez Diaz, Paula SofiaWFM	2007	MEX	+24B	=14N	+4B	+9N	+5N	=3B	5.0	19.5	22.0	18.25	2060	+7.2
2	Castellanos Hernandez, Lhia ItzayanaWCM	1918	MEX	+25N	−18B	+22N	+10B	+12N	+5B	5.0	15.5	18.0	15.50	2006	+11.8
3	Huerta Osorno, Erin	1812	MEX	+30B	+12N	+18N	−5B	+6N	=1N	4.5	18.5	20.0	13.50	1986	+54.0
4	Hernandez Ortega, CarolinaWCM	1851	MEX	=15N	+11B	−1N	+13B	+19N	+10B	4.5	18.0	20.5	14.00	1960	+18.0
5	Conde Mares, Vanya BriseydaWCM	1839	MEX	+29N	+28B	+13N	+3N	−1B	−2N	4.0	19.5	21.5	11.50	1970	+41.6
6	Olea Valle, Scarlett Daniela	1921	MEX	−12B	+21N	+16B	+18N	−3B	+13N	4.0	16.0	18.5	11.00	1854	-18.4
7	Guillen Moreno, Karina Guadalupe	1842	MEX	=21B	+19N	−9B	=20N	+11B	+12B	4.0	15.0	17.5	11.50	1788	-15.6
8	Diaz Bartolo, Elizabeth SchahrazadWFM	1979	MEX	+23N	−13B	+20B	−12N	+18B	+14N	4.0	14.0	16.5	10.50	1874	-28.0
9	Cruz Martinez, Adriana Jasmin	1707	MEX	=11N	+15B	+7N	−1B	−10N	+19B	3.5	19.0	21.5	11.25	1822	+36.8
10	Tec Rodas, Sofia IsavelinaWCM	1849	MEX	+16B	=20N	+14B	−2N	+9B	−4N	3.5	19.0	21.5	10.75	1829	-4.0
11	Cruz Lopez, Ariana Itzel	1661	MEX	=9B	−4N	+21B	+17B	−7N	+23B	3.5	17.5	20.0	9.75	1818	+52.4
12	Paredes Caballero, Astrid	1678	MEX	+6N	−3B	+28N	+8B	−2B	−7N	3.0	21.5	23.5	10.00	1877	+60.0
13	Garcia Ortega, Natalia BelenWCM	1850	MEX	+32B	+8N	−5B	−4N	+20B	−6B	3.0	19.0	19.5	7.00	1816	-10.4
14	Velarde Hernandez, Paulina Yunuen	1827	MEX	+22N	=1B	−10N	=23B	+28N	−8B	3.0	17.5	19.5	8.25	1826	-0.4
15	Jarillo Gonzalez, Andrea Paulina	1704	MEX	=4B	−9N	+27B	−19N	+31B	=17B	3.0	16.0	17.5	7.75	1613	-13.0
16	Morales Vasquez, Miguelina Malinalli	1615	MEX	−10N	+26B	−6N	=22B	=25N	+28B	3.0	15.0	17.0	7.00	1725	+32.0
17	Garza Cantu, Sheryl Paulina	1760	MEX	−19B	+30N	=31B	−11N	+27B	=15N	3.0	13.0	14.5	6.25	1542	-58.0
18	Sotelo Anguiano, Daniela	1719	MEX	+31N	+2N	−3B	−6B	−8N	=26B	2.5	20.0	21.5	7.75	1725	-0.4
19	Bahena Tello, Tania Quetzalli	1525	MEX	+17N	−7B	=23N	+15B	−4B	−9N	2.5	18.0	20.5	7.25	1706	+50.0
20	Gonzalez Romo, Greshya Jocelyn	1711	MEX	+26N	=10B	−8N	=7B	−13N	=25B	2.5	17.0	19.5	7.50	1725	+1.4
21	Tecuautzin Nonoal, Mariel Yared	1694	MEX	=7N	−6B	−11N	=26B	+22N	=24N	2.5	16.5	19.0	7.00	1645	-18.0
22	Pantaleon Salmoran, Atzin Yaretzi	1625	MEX	−14B	+24N	−2B	=16N	−21B	+30N	2.5	16.0	17.5	5.50	1666	+4.8
23	Leal Ruiz, Rayda Elisa	1708	MEX	−8B	+32N	=19B	=14N	=24B	−11N	2.5	15.5	16.0	4.50	1654	-20.4
24	Ginez Serrano, Vania	1685	MEX	−1N	−22B	=26N	+29B	=23N	=21B	2.5	15.0	17.0	5.75	1643	-17.2
25	Diaz Gonzalez Jardon, Shirel	1685	MEX	−2B	−31N	+30B	=27N	=16B	=20N	2.5	14.5	16.0	5.50	1612	-22.4
26	Aroche Ramos, Danae Guadalupe	1477	MEX	−20B	−16N	=24B	=21N	+32B	=18N	2.5	13.0	13.5	4.25	1612	+39.2
27	Rosas Rodriguez, Evelin Guadalupe	0	MEX	−28N	+29B	−15N	=25B	−17N	+32B	2.5	12.5	13.0	3.75	1647	0.0
28	Castillo Vallejo, Kimberly	1788	MEX	+27B	−5N	−12B	+31N	−14B	−16N	2.0	15.5	17.0	4.00	1468	-40.2
29	Sarabia Arguello, Wendy	1690	MEX	−5B	−27N	=32B	−24N	=30N	+31B	2.0	12.0	12.5	2.50	1586	-14.6
30	Santos Reyes, Alba Miranda	1595	MEX	−3N	−17B	−25N	+32N	=29B	−22B	1.5	14.5	15.0	1.50	1502	-28.4
31	Ramirez Sarapura, Sara Johanna	1580	MEX	−18B	+25B	=17N	−28B	−15N	−29N	1.5	13.0	15.0	4.00	1532	-14.4
32	Alpizar Rios, Gabriela Alheli	1590	MEX	−13N	−23B	=29N	−30B	−26N	−27N	0.5	12.5	14.0	1.00	1299	-60.8

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Paredes Caballero, AstridMEX
+60.0
3.0 pts · #14
2Huerta Osorno, ErinMEX
+54.0
4.5 pts · #3
3Cruz Lopez, Ariana ItzelMEX
+52.4
3.5 pts · #11

Top rating losers

1Alpizar Rios, Gabriela AlheliMEX
-60.8
0.5 pts · #32
2Garza Cantu, Sheryl PaulinaMEX
-58.0
3.0 pts · #27
3Castillo Vallejo, KimberlyMEX
-40.2
2.0 pts · #31

Biggest upsets

R4+301 Elo gap
Paredes Caballero, Astrid1678 beat WFMDiaz Bartolo, Elizabeth Schahrazad1979
R1+243 Elo gap
Paredes Caballero, Astrid1678 beat Olea Valle, Scarlett Daniela1921
R1+235 Elo gap
Bahena Tello, Tania Quetzalli1525 beat Garza Cantu, Sheryl Paulina1760