CChessStats

IRT NACIONAL SELECTIVO U20 FEMENINO

Open SwissStandard

14 players participated in this 8-round tournament, held from 26 Feb 2026 to 01 Mar 2026 in Portoviejo, Ecuador. Top 10 Elo average was 1573, and top seed was Alexa Oblitas Calle (🇪🇨 ECU, 1798).

Heidy Jurado Grefa (🇪🇨 ECU, 1748) won with 7.5/8, ahead of Alexa Oblitas Calle (6.0) and Jomaira Fernanda Naekat Mashianda (5.5). Jurado Grefa won solo starting round 4.

The biggest upset came in round 2: Allison Michelle Villamar Mera (1602) beat Alexa Oblitas Calle (1798), a +196-point gap.

Location
🇪🇨Portoviejo, Ecuador
Dates
26 Feb 2026 → 01 Mar 2026
Time control
Standard: 45 minutes with 30 seconds increment from move 1
System
Swiss · 8 rounds
Top seed
🇪🇨Alexa Oblitas Calle1798
Avg top 10
1,573
Participants
14
Federations · 1 represented
🇪🇨Ecuador×11
Top 3

How it unfolded

Top 6 · 8 rounds

Heidy Jurado Grefa led from R4; +1.5-point edge over the runner-up.

Co-leaders
6
2
2
1
1
1
1
1
2468R1R2R3R4R5R6R7R8
Jurado Grefa7.5Oblitas Calle6Naekat Mashianda5.5Villamar Mera4.5Molina Alvarado4.5Vera Toro4.5
R4–R8 · LEAD HELD

Heidy Jurado Grefa never relinquished the lead after R4; final gap +1.5 over the runner-up.

R6 · HEAD-TO-HEAD · WINNER VS 2ND

Heidy Jurado Grefa drew with Alexa Oblitas Calle (White).

WIN STREAKS · 3 top finishers

Heidy Jurado Grefa 5 wins (R1–R5)Alexa Oblitas Calle 3 wins (R3–R5)Jomaira Fernanda Naekat Mashianda 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Heidy Jurado Grefa*
½
1
1
2Alexa Oblitas Calle
½
*
1
0
3Jomaira Fernanda Naekat Mashianda
0
0
*
1
4Allison Michelle Villamar Mera
0
1
0
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8PtsBu C1BuSBPerfΔ
1Jurado Grefa, Heidy1748ECU+6B+5N+7B+3N+4N=2B+9N+10B7.533.537.034.002019+34.8
2Oblitas Calle, Alexa1798ECU+10N−4B+8N+9B+3N=1N+5B=6B6.035.038.528.001752-11.2
3Naekat Mashianda, Jomaira Fernanda1657ECU+8N+9B+4N−1B−2B=5N+12B+11N5.534.035.519.751662+3.6
4Villamar Mera, Allison Michelle1602ECUF+2N−3B+5N−1B+7N+8B=9B4.536.537.521.501703+19.4
5Vera Toro, Kelsy Johana1534ECU+14N−1B+12N−4B+6N=3B−2N+13B4.530.531.010.251504-9.2
6Molina Alvarado, Lady Diana1452ECU−1N+14B−9N+10B−5B+12N+11B=2N4.530.030.511.501472-1.2
7Zurita Olivares, Ana Rafaella1520ECU+12N=10B−1N=8B=9N−4B+13N+14B4.526.527.09.001416-29.2
8Carrillo Rosemberg, Rafaella1421ECU−3B+11N−2B=7N+13B+14N−4N+12B4.526.026.58.251323-21.2
9Toala Choez, Ashley Elizabeth1529ECU+11B−3N+6B−2N=7B+10N−1B=4N4.036.039.015.501566+20.4
10Zambrano Prado, Mariangel1467ECU−2B=7N+13B−6N+11B−9B+14N−1N3.530.531.06.751240-60.4
11Mendoza Candela, Marisa Fernanda0ECU−9N−8B+14N+12B−10N+13B−6N−3B3.024.525.03.007180.0
12FIDE 36601410—−7B+13N−5B−11N=14B−6B−3N−8N1.527.528.01.257230.0
13FIDE 36316720—F−12B−10N+14B−8N−11N−7B−5N1.026.026.50.507060.0
14FIDE 36696960—−5B−6N−11B−13N=12N−8B−10B−7N0.526.027.00.756960.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets