CChessStats

XXVI IRT Hibrido de Las Americas Sub-1800 2025 U13

Open SwissStandard

15 players participated in this 7-round tournament, held from 21 Mar 2026 to 22 Mar 2026 in Guarenas-Porlamar-Barcelona-Puerto Espana, Venezuela. Top 10 Elo average was 886, and top seed was Samuel Chaumer Lopez (🇻🇪 VEN, 1544).

Francisco Javier Gonzalez Siso (🇻🇪 VEN, 0) won with 6.5/7, ahead of Israel Andres Marin Alvarez (6.0) and Xavier Alejandro Calderon Fernandes (5.0). Gonzalez Siso won solo starting round 4.

Location
🇻🇪Guarenas-Porlamar-Barcelona-Puerto Espana, Venezuela
Dates
21 Mar 2026 → 22 Mar 2026
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 7 rounds
Top seed
🇻🇪Samuel Chaumer Lopez1544
Avg top 10
886
Participants
15
Federations · 1 represented
🇻🇪Venezuela×13
Top 3

How it unfolded

Top 6 · 7 rounds

Francisco Javier Gonzalez Siso led from R4; +0.5-point edge over the runner-up.

Co-leaders
8
4
2
1
1
1
1
23.55.57R1R2R3R4R5R6R7
Gonzalez Siso6.5Marin Alvarez6Calderon Fernandes5Reyes Hernandez4.5Martinez Rodriguez4Font Franco3.5
R4–R7 · LEAD HELD

Francisco Javier Gonzalez Siso held the sole lead from R4 through R7 without losing it.

R3 · HEAD-TO-HEAD · WINNER VS 2ND

Francisco Javier Gonzalez Siso beat Israel Andres Marin Alvarez (Black).

WIN STREAKS · 3 top finishers

Francisco Javier Gonzalez Siso 4 wins (R1–R4)Israel Andres Marin Alvarez 4 wins (R4–R7)Xavier Alejandro Calderon Fernandes 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Francisco Javier Gonzalez Siso*
1
1
½
2Israel Andres Marin Alvarez
0
*
1
1
3Xavier Alejandro Calderon Fernandes
0
0
*—
4Ronni Jose Reyes Hernandez
½
0
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Gonzalez Siso, Francisco Javier0VEN+?B+10N+2N+3B=4N+5B+6N6.525.525.523.2515760.0
2Marin Alvarez, Israel Andres1469VEN+6B+8N−1B+5N+9B+3N+4B6.027.030.023.502280+62.0
3Calderon Fernandes, Xavier Alejandro1441VEN+12B+14N+5B−1N+6B−2B+7N5.025.527.515.001599+26.0
4Reyes Hernandez, Ronni Jose0VEN+7B−5N+?B+10N=1B+9N−2N4.525.525.512.2515270.0
5Martinez Rodriguez, Carla Daniela1492VEN+13N+4B−3N−2B+12N−1N+14B4.026.028.010.50652-44.0
6Giron Mata, Noah Matias0VEN−2N+15B=11N+8B−3N+10N−1B3.526.026.07.2513510.0
7Font Franco, Maia Isabella1404VEN−4N+13B+12N−9B=10B+11N−3B3.519.521.57.751218-36.0
8Font Franco, Arianna De Los Angeles0VEN+9N−2B−10B−6N=?B+15N+11B3.517.517.55.5014040.0
9Diaz Araujo, Rodrigo Fabian1510VEN−8BF+14B+7N−2N−4B+12N3.021.521.57.501466-4.8
10Chaumer Lopez, Samuel1544VEN+11N−1B+8N−4B=7N−6BF2.524.026.07.751465-3.2
11Cova Solorzano, Eduardo Alexander0VEN−10B−?N=6B+15N+13B−7B−8N2.515.015.03.756840.0
12Marin Alvarez, Isabella Andrea0VEN−3NF−7B+?N−5B+13N−9B2.017.517.52.0012330.0
13FIDE 239012500—−5B−7N+15N+14B−11N−12BF2.016.516.52.006780.0
14Ruiz Guzman, Marianyelis Susej0VENF−3B−9N−13N+15B+?N−5N2.014.014.00.0012830.0
15FIDE 239256550—−?B−6N−13B−11B−14N−8B−?N0.013.513.50.006630.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers