CChessStats

Torneo North American Junior Chess Championship U20 Fem

Open SwissStandard

17 players participated in this 9-round tournament, held from 01 Dec 2025 to 06 Dec 2025 in MOR, Oaxtepec, Mexico. 8 titled players from 3 federations. Top 10 Elo average was 1956, and top seed was Guadalupe Montano Vicente (🇲🇽 MEX, 2086).

Laurie Qiu (🇺🇸 USA, WIM, 2016) won with 7.0/9, ahead of Lily Jeanette Duarte Cramer (5.5) and Lucy Gao (5.5). Qiu won solo starting round 3.

The biggest upset came in round 1: Alondra Sarahi Zamora Marquez (1532) beat Carolina Hernandez Ortega (WCM, 1857), a +325-point gap.

Location
🇲🇽MOR, Oaxtepec, Mexico
Dates
01 Dec 2025 → 06 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Top seed
🇲🇽Guadalupe Montano Vicente2086
Avg top 10
1,956
Participants
17
Titled players · 8
CM×1
WIM×1
WFM×3
WCM×3
Federations · 3 represented
🇲🇽Mexico×12
🇺🇸United States of America×4
🇨🇦Canada×1
Top 3

How it unfolded

Top 6 · 9 rounds

WIM Laurie Qiu led from R3; +1.5-point edge over the runner-up.

Co-leaders
8
2
1
1
1
1
1
1
1
2.54.579R1R2R3R4R5R6R7R8R9
Qiu7Gao5.5Duarte Cramer5.5Fei5Barrera Garcia5Montano Vicente5
R3–R9 · LEAD HELD

WIM Laurie Qiu never relinquished the lead after R3; final gap +1.5 over the runner-up.

R2 · HEAD-TO-HEAD · WINNER VS 2ND

WIM Laurie Qiu beat WFM Lucy Gao (White).

R1–R4 · WIN STREAK

WIM Laurie Qiu won 4 in a row (R1–R4).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1WIMLaurie Qiu*
1
1
1
2WFMLucy Gao
0
*
½
½
3WFMLily Jeanette Duarte Cramer
0
½
*
½
4CMIrene Jiao Fei
0
½
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Qiu, LaurieWIM2016USA+8N+3B+5N+9B=4N=6B+2N=7B=11N7.040.544.535.002163+66.0
2Duarte Cramer, Lily JeanetteWFM1938MEX+12N=6B−9N+7B=5N+13B−1B+4N=3N5.540.544.024.751985+21.2
3Gao, LucyWFM1890CANF−1N+12B+10B=6N+4B+9N=5N=2B5.539.539.524.752064+76.8
4Montano Vicente, Guadalupe2086MEX+10N=9B=6N+5B=1B−3N+8B−2B=7N5.042.546.524.751974-49.2
5Fei, Irene JiaoCM1981USA+13N+7B−1B−4N=2B+14N+6N=3B−10N5.040.543.522.001956-9.6
6Danduprolu, Ridhi VarmaWCM2000USA+16B=2N=4B+14N=3B=1N−5B=8N=12B5.039.541.520.751907-38.4
7Hernandez Diaz, Paula SofiaWFM2024MEX+14B−5N=8B−2N+12B=11N+10B=1N=4B5.039.042.021.001918-22.2
8Barrera Garcia, Fernanda Guadalupe1744MEX−1B+15N=7N=13B+10N=9B−4N=6B+17N5.036.538.517.501898+67.2
9Castellanos Hernandez, Lhia ItzayanaWCM1950MEX+15B=4N+2B−1N=14B=8N−3B−11N+16N4.537.539.516.501854-21.6
10Yan, Isabella1815USA−4B+16N+17B−3N−8B+15N−7NF+5B4.032.032.011.501825+2.8
11Hernandez Ortega, CarolinaWCM1857MEX−17N−13BFF+16N=7B+14N+9B=1B4.027.027.015.501858+2.2
12Dotor Martinez, Zoe1570MEX−2BF−3N+15B−7N=16N=13B+17B=6N3.531.031.09.751744+57.2
13Duarte Cramer, Evelynn Renata1636MEX−5B+11N−14B=8N+17B−2N=12N=16B−15B3.530.532.511.251674+13.6
14Castillo Vallejo, Kimberly1792MEX−7N+17B+13N−6B=9N−5B−11B=15NF3.031.531.59.001740-12.8
15Medina Lozada, Zyanya Ainara1633MEX−9N−8B+16B−12NF−10B−17N=14B+13N2.527.527.57.001577-27.6
16Macedo Salcedo, Sofia1710MEX−6N−10B−15N+17N−11B=12BF=13N−9B2.029.029.05.501556-65.2
17Zamora Marquez, Alondra Sarahi1532MEX+11B−14N−10N−16B−13NF+15B−12N−8B2.027.527.56.501527-6.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets