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Olimpiada Nacional 2026. Region IV. Sub 12 Fem

Open SwissStandard

9 players participated in this 5-round tournament, held from 18 Mar 2026 to 20 Mar 2026 in MOR, Cuernavaca, Mexico. Top 10 Elo average was 519, and top seed was Alondra Bagatella Avalos (πŸ‡²πŸ‡½ MEX, 1654).

Alondra Bagatella Avalos (πŸ‡²πŸ‡½ MEX, 1654) won with 5.0/5, ahead of Andrea Jatziry Peralta Isidro (3.5) and Estefania Gaona Garrido (3.0). Bagatella Avalos won solo starting round 3.

The biggest upset came in round 1: Estefania Gaona Garrido (1443) beat Michelle Castillo Gonzalez (1570), a +127-point gap.

Location
πŸ‡²πŸ‡½MOR, Cuernavaca, Mexico
Dates
18 Mar 2026 β†’ 20 Mar 2026
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss Β· 5 rounds
Top seed
πŸ‡²πŸ‡½Alondra Bagatella Avalos1654
Avg top 10
519
Participants
9
Federations Β· 1 represented
πŸ‡²πŸ‡½MexicoΓ—6
Top 3

How it unfolded

Top 6 Β· 5 rounds

Alondra Bagatella Avalos led from R3; +1.5-point edge over the runner-up.

Co-leaders
5
2
1
1
1
1.52.545R1R2R3R4R5
Bagatella Avalos5Peralta Isidro3.5Gaona Garrido3Lopez Arevalo3Pedraza Rodriguez32.5
R3–R5 Β· LEAD HELD

Alondra Bagatella Avalos never relinquished the lead after R3; final gap +1.5 over the runner-up.

R1–R5 Β· WIN STREAK

Alondra Bagatella Avalos won 5 in a row (R1–R5).

Key matchups Β· top 4

Head-to-head between the four finishers
Player1234
1Alondra Bagatella Avalos*β€”
1
1
2Andrea Jatziry Peralta Isidroβ€”*
1
β€”
3Estefania Gaona Garrido
0
0
*
1
4Luna Estephania Lopez Arevalo
0
β€”
0
*

Grille amΓ©ricaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΞ”
1Bagatella Avalos, Alondra1654MEX+5N+8B+3N+6B+4N5.011.512.012.002242+9.2
2Peralta Isidro, Andrea Jatziry0MEX+7N=6Bβˆ’4N+8B+3N3.59.510.05.7514620.0
3Gaona Garrido, Estefania1443MEX+9N+4Bβˆ’1B+5Nβˆ’2B3.014.515.06.501615+18.0
4Pedraza Rodriguez, Valeri Itzayan0MEX+?Bβˆ’3N+2B+?Nβˆ’1B3.011.511.53.507480.0
5Lopez Arevalo, Luna Estephania0MEXβˆ’1B+?N+9Bβˆ’3B+6N3.011.011.03.0014320.0
6FIDE 5500227170β€”+?N=2N+7Bβˆ’1Nβˆ’5B2.512.512.52.758540.0
7FIDE 296233830β€”βˆ’2B+9Bβˆ’6Nβˆ’?NF1.06.56.50.5015960.0
8FIDE 5500227090β€”Fβˆ’1Nβˆ’?Bβˆ’2N=9N0.59.09.00.2514220.0
9Castillo Gonzalez, Michelle1570MEXβˆ’3Bβˆ’7Nβˆ’5NF=8B0.57.57.50.25642-27.2

Key insights

Biggest movers and upsets β€” the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
Olimpiada Nacional 2026. Region IV. Sub 12 Fem β€” MOR, Cuernavaca, Mexico | Chess Tournament Results | ChessStats