CChessStats

Campeonato Nacional Categoria U20 femenino 2026

Open SwissStandard

12 players participated in this 7-round tournament, held from 07 Mar 2026 to 15 Mar 2026 in San Jose, Costa Rica. 2 titled players. Top 10 Elo average was 1614, and top seed was Sofia Mayorga Araya (🇨🇷 CRC, WIM, 2099).

Sofia Mayorga Araya (🇨🇷 CRC, WIM, 2099) won with 7.0/7, ahead of Aylin Naomy Salazar Delgado (5.5) and Leticia Fiorella Guerrero Diaz (4.0). Mayorga Araya won solo starting round 3.

The biggest upset came in round 5: Mariana Leiton Rivas (1434) beat Ana Maria Corrales Corrales (1621), a +187-point gap.

Location
🇨🇷San Jose, Costa Rica
Dates
07 Mar 2026 → 15 Mar 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 7 rounds
Top seed
🇨🇷WIMSofia Mayorga Araya2099
Avg top 10
1,614
Participants
12
Titled players · 2
WIM×1
WCM×1
Federations · 1 represented
🇨🇷Costa Rica×12
Top 3

How it unfolded

Top 6 · 7 rounds

WIM Sofia Mayorga Araya led from R3; +1.5-point edge over the runner-up.

Co-leaders
5
2
1
1
1
1
1
23.55.57R1R2R3R4R5R6R7
Mayorga Araya7Salazar Delgado5.5Guerrero Diaz4Garcia Rojas4Loria Molina4Fernandez Mayorga3
R3–R7 · LEAD HELD

WIM Sofia Mayorga Araya never relinquished the lead after R3; final gap +1.5 over the runner-up.

R2 · HEAD-TO-HEAD · WINNER VS 2ND

WIM Sofia Mayorga Araya beat Aylin Naomy Salazar Delgado (White).

WIN STREAKS · 2 top finishers

WIM Sofia Mayorga Araya 7 wins (R1–R7)Aylin Naomy Salazar Delgado 4 wins (R4–R7)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1WIMSofia Mayorga Araya*
1
1
1
2Aylin Naomy Salazar Delgado
0
*
½
1
3Leticia Fiorella Guerrero Diaz
0
½
*
½
4Estefania Garcia Rojas
0
0
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Mayorga Araya, SofiaWIM2099CRC+7N+2B+4N+5B+3N+8B+10N7.023.024.524.502499+19.2
2Salazar Delgado, Aylin Naomy1545CRC+12B−1N=3B+11N+5N+4B+8N5.522.523.514.501809+78.4
3Guerrero Diaz, Leticia Fiorella1584CRC+10N=5B=2N=4B−1B=6N+9B4.026.027.512.251664+16.4
4Loria Molina, Sofia1578CRC+8N+6B−1B=3N+10B−2N=5N4.026.027.511.001653+18.4
5Garcia Rojas, Estefania1591CRC+11B=3N+10B−1N−2B+9N=4B4.024.525.59.001650+14.4
6Corrales Corrales, Ana Maria1621CRC=9B−4N+12B−7B−8N=3B+11N3.017.018.05.251460-39.2
7Fernandez Mayorga, ElenaWCM0CRC−1B+9N+11B+6NFFF3.013.513.56.5017200.0
8Leiton Rivas, Mariana1434CRC−4B−11N=9B+12N+6B−1N−2B2.523.024.05.251407-12.0
9Briceno Little, Jenifer1544CRC=6N−7B=8N=10N+11B−5B−3N2.518.019.04.501475-13.2
10Bermudez Hernandez, Amanda1526CRC−3B+12N−5N=9B−4NF−1B1.522.522.52.251264-15.6
11Zhou Fernandez, Isabella1618CRC−5N+8B−7N−2B−9N−12B−6B1.020.521.52.501299-51.2
12Rivas Zapata, Denisse0CRC−2N−10B−6N−8BF+11NF1.013.513.51.0012640.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets