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Campeonato Nacional de Ajedrez por Categorias Pares 2026 - U12 ABS

Open SwissStandard

19 players participated in this 7-round tournament, held from 11 Jun 2026 to 14 Jun 2026 in Herrera, Panama. Top 10 Elo average was 1240, and top seed was Dominick Yong Heng Jarrin Zhang (🇵🇦 PAN, 1666).

Giuseppe Umberto Antinori Rodriguez (🇵🇦 PAN, 1651) won with 6.0/7, ahead of Dominick Yong Heng Jarrin Zhang (5.5) and Enmanuel de Jesus Roa Lugo (5.0). Antinori Rodriguez shared the lead from round 6 and broke clear in the final round.

The biggest upset came in round 2: Jeremy Alexander Cho Hau (1542) beat Giuseppe Umberto Antinori Rodriguez (1651), a +109-point gap.

Location
🇵🇦Herrera, Panama
Dates
11 Jun 2026 → 14 Jun 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 7 rounds
Top seed
🇵🇦Dominick Yong Heng Jarrin Zhang1666
Avg top 10
1,240
Participants
19
Federations · 1 represented
🇵🇦Panama×12
Top 3

How it unfolded

Top 6 · 7 rounds

Giuseppe Umberto Antinori Rodriguez led from R7; +0.5-point edge over the runner-up.

Co-leaders
8
4
1
1
1
2
1
23.55.57R1R2R3R4R5R6R7Antinori Rodriguez takes lead
Antinori Rodriguez6Jarrin Zhang5.5De Leon Aparicio5Roa Lugo5Cho Hau4.5Wensveen4
R7 · LEADER CHANGE14 Jun

Giuseppe Umberto Antinori Rodriguez takes the sole lead (6.0/7).

R6 · HEAD-TO-HEAD · WINNER VS 2ND

Giuseppe Umberto Antinori Rodriguez beat Dominick Yong Heng Jarrin Zhang (Black).

WIN STREAKS · 3 top finishers

Giuseppe Umberto Antinori Rodriguez 5 wins (R3–R7)Dominick Yong Heng Jarrin Zhang 4 wins (R1–R4)Keydan Harim De Leon Aparicio 4 wins (R2–R5)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Giuseppe Umberto Antinori Rodriguez*
1
1
1
2Dominick Yong Heng Jarrin Zhang
0
*—
½
3Keydan Harim De Leon Aparicio
0
—*
0
4Enmanuel de Jesus Roa Lugo
0
½
1
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Antinori Rodriguez, Giuseppe Umberto1651PAN+4B−5N+12B+6N+7B+2N+3B6.028.030.526.001757+21.6
2Jarrin Zhang, Dominick Yong Heng1666PAN+18N+9B+8N+5B=3N−1B+7N5.527.528.520.001720+14.4
3Roa Lugo, Enmanuel de Jesus1602PAN+14N+15B=5N+8B=2B+4N−1N5.027.029.018.001605+0.8
4De Leon Aparicio, Keydan Harim0PAN−1N+17B+15N+9B+10N−3B+5N5.025.526.515.5015660.0
5Cho Hau, Jeremy Alexander1542PAN+17N+1B=3B−2N+12B+6N−4B4.528.029.016.001686+30.8
6Wensveen, Juan-Maarten1446PAN+11N−8B+10N−1B+15N−5B+9N4.025.527.513.001466+4.4
7Correa Sandoval, Marcos Adrian0PAN+16N−10B+14N+11B−1N+8B−2B4.024.526.511.0013860.0
8Pineda Aguirre, Jenner Antonio1561PAN+13B+6N−2B−3N+11B−7N+14B4.024.026.011.501446-18.4
9Liu Qiu, Kenneth Ryan1498PAN+19B−2N+16B−4N+13B+12N−6B4.021.522.58.00756-34.0
10Martinez Chong, Isaac Manuel1438PAN=12B+7N−6B+17N−4B=13N+11B4.021.022.010.50646-19.6
11FIDE 66299700—−6B+13N+19B−7N−8N+17B−10N3.019.520.54.506820.0
12Ramos Chung, Ian Andres0PAN=10N+18B−1N+14B−5N−9BF2.521.521.55.0012100.0
13FIDE 66309870—−8N−11B+18N+19B−9N=10B−16N2.518.019.04.0012260.0
14Garcia Marroquin, Aldo Mateo0PAN−3B+19N−7B−12N+16BF−8N2.018.518.53.007820.0
15FIDE 66350910—F−3N−4B+16N−6B−18N+17B2.018.018.03.007240.0
16FIDE 66220380—−7BF−9N−15B−14N+19N+13B2.015.515.53.506980.0
17FIDE 66382100—−5B−4NF−10B+18B−11N−15N1.019.519.51.006900.0
18FIDE 66403620—−2B−12N−13BF−17N+15B−19N1.014.514.52.008660.0
19FIDE 66350080—−9N−14B−11N−13NF−16B+18B1.014.514.51.006980.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets
Campeonato Nacional de Ajedrez por Categorias Pares 2026 - U12 ABS — Herrera, Panama | Chess Tournament Results | ChessStats