CChessStats

XX CAMPEONATO SUDAMERICANO DE AJEDREZ SUB-20 FEMENINO GUAYAQUIL-ECUADOR

Open SwissStandard

16 players participated in this 9-round tournament, held from 20 Oct 2025 to 26 Oct 2025 in Guayaquil, Ecuador. 8 titled players from 6 federations. Top 10 Elo average was 1936, and top seed was Fiorella Contreras Huaman (🇵🇪 PER, FM, 2217).

Nicolle Julieth Mogollon Tobar (🇨🇴 COL, WIM, 2060) won with 8.5/9, ahead of Fiorella Contreras Huaman (7.0) and Gloria Luz Yepez Montenegro (6.0). Mogollon Tobar took the lead from round 4.

The biggest upset came in round 5: Salome Chamba Guerrero (1646) beat Fiorella Contreras Huaman (FM, 2217), a +571-point gap.

Location
🇪🇨Guayaquil, Ecuador
Dates
20 Oct 2025 → 26 Oct 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Top seed
🇵🇪FMFiorella Contreras Huaman2217
Avg top 10
1,936
Participants
16
Titled players · 8
FM×1
WIM×2
WFM×4
WCM×1
Federations · 6 represented
🇪🇨Ecuador×8
🇧🇴Bolivia×3
🇵🇪Peru×2
🇵🇾Paraguay×1
🇨🇴Colombia×1
🇦🇷Argentina×1
Top 3

How it unfolded

Top 6 · 9 rounds

WIM Nicolle Julieth Mogollon Tobar led from R4; +1.5-point edge over the runner-up.

Co-leaders
7
3
1
1
1
1
1
1
1
2.54.579R1R2R3R4R5R6R7R8R9Mogollon Tobar takes lead
Mogollon Tobar8.5Contreras Huaman7Yepez Montenegro6Maravi Ceron5.5Oviedo Acosta5.5Chamba Guerrero5
R4 · LEADER CHANGE22 Oct

WIM Nicolle Julieth Mogollon Tobar takes the sole lead (3.5/4).

R4 · HEAD-TO-HEAD · WINNER VS 2ND

WIM Nicolle Julieth Mogollon Tobar beat FM Fiorella Contreras Huaman (White).

WIN STREAKS · 2 top finishers

WIM Nicolle Julieth Mogollon Tobar 8 wins (R2–R9)FM Fiorella Contreras Huaman 3+4 wins (R1–R3, R6–R9)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1WIMNicolle Julieth Mogollon Tobar*
1
1
1
2FMFiorella Contreras Huaman
0
*
1
1
3WFMGloria Luz Yepez Montenegro
0
0
*
½
4WFMAyme Maravi Ceron
0
0
½
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7R8R9PtsBu C1BuSBPerfΔ
1Mogollon Tobar, Nicolle JuliethWIM2060COL=6N+10B+3N+2B+4N+5B+11N+8B+9N8.542.547.044.502343+44.8
2Contreras Huaman, FiorellaFM2217PER+13B+9N+5B−1N−7B+3B+4N+10B+8N7.044.047.033.502129-13.8
3Yepez Montenegro, Gloria LuzWFM1919BOL+15B+8N−1B+9N=5B−2N+7B+6N=4B6.045.547.526.502008+21.6
4Maravi Ceron, AymeWFM1927PER+7B−5N+14B+8N−1B+9N−2B+16N=3N5.543.044.020.001937+6.3
5Oviedo Acosta, PaulaWFM1884PAR+16N+4B−2N+12B=3N−1N−8B+11B+14N5.541.542.519.501890+1.4
6Chamba Guerrero, Maria PazWCM1770ECU=1B+14N−8B=7N=9B=10B+15N−3B+13N5.038.040.018.251854+27.4
7Chamba Guerrero, Salome1646ECU−4N+16B=12N=6B+2N=11B−3N+15B=10N5.038.039.018.751797+49.3
8Mollo Figueroa, NicoleWIM1919BOL+11N−3B+6N−4B=10N+13B+5N−1N−2B4.546.549.520.251906-7.2
9Guerrero Caicedo, ArletteWFM1908ECU+12N−2B+11N−3B=6N−4B+16N+13B−1B4.543.044.014.501824-17.8
10Miranda Vargas,Analia Karen1899ECU−14B−1N+15B+13N=8B=6N+12B−2N=7B4.538.540.515.751875-2.8
11Echeverria Bravo, Maria Cristina1638ECU−8B+15N−9B+14N+12B=7N−1B−5N+16B4.535.536.511.001695+12.0
12Zhunio Guaman, Sofia Morelia1563ECU−9B+13N=7B−5N−11N+16B−10N−14B+15N3.531.032.08.501677+31.6
13Ramallo Aguilar, Ariadne Ricela1853BOL−2N−12B+16N−10B+15N−8N+14B−9N−6B3.033.034.05.001534-52.4
14Romero Lino, Fiorella Luana1429ECU+10N−6B−4N−11B−16N−15B−13N+12N−5B2.033.534.58.0015750.0
15Amarilla, Abril Antonella1622ARG−3N−11B−10N+16B−13B+14N−6B−7N−12B2.033.534.53.00956-94.0
16Bullon Cajo, Jennifer Mercedes0ECU−5B−7N−13B−15N+14B−12N−9B−4B−11N1.033.535.52.009540.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets