CChessStats

IRT NACIONAL DE AJEDREZ CLASIFICATORIO CATEGORIA U15 2026

Open SwissStandard

25 players participated in this 7-round tournament, held from 22 Mar 2026 to 26 Mar 2026 in Portoviejo, Ecuador. Top 10 Elo average was 1691, and top seed was Lucas Mathias Ruiz Guanga (🇪🇨 ECU, 1947).

Lucas Mathias Ruiz Guanga (🇪🇨 ECU, 1947) won with 6.5/7, ahead of Josue Alejandro Mendoza Montesdeoca (5.5) and Andres Linan Lezama (5.0). Ruiz Guanga won solo starting round 4.

The biggest upset came in round 7: Andres Linan Lezama (1489) beat Kyle Bustos Chaveewong (1727), a +238-point gap.

Location
🇪🇨Portoviejo, Ecuador
Dates
22 Mar 2026 → 26 Mar 2026
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 7 rounds
Top seed
🇪🇨Lucas Mathias Ruiz Guanga1947
Avg top 10
1,691
Participants
25
Federations · 1 represented
🇪🇨Ecuador×22
Top 3

How it unfolded

Top 6 · 7 rounds

Lucas Mathias Ruiz Guanga led from R4; +1.0-point edge over the runner-up.

Co-leaders
11
6
2
1
1
1
1
23.55.57R1R2R3R4R5R6R7
Ruiz Guanga6.5Mendoza Montesdeoca5.5Linan Lezama5Sanchez Velez4.5Atiencia Merino4.5Sozoranga Barahona4
R4–R7 · LEAD HELD

Lucas Mathias Ruiz Guanga never relinquished the lead after R4; final gap +1.0 over the runner-up.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Lucas Mathias Ruiz Guanga beat Josue Alejandro Mendoza Montesdeoca (White).

R1–R6 · WIN STREAK

Lucas Mathias Ruiz Guanga won 6 in a row (R1–R6).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Lucas Mathias Ruiz Guanga*
1
—
1
2Josue Alejandro Mendoza Montesdeoca
0
*—
½
3Andres Linan Lezama——*—
4Alex Leonardo Sanchez Velez
0
½
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Ruiz Guanga, Lucas Mathias1947ECU+12B+7N+8B+6N+2B+4B=5N6.526.530.027.752117+38.0
2Mendoza Montesdeoca, Josue Alejandro1851ECU+10N+14B=4N+8B−1N+7B+6N5.527.030.521.751908+24.0
3Linan Lezama, Andres1489ECU+22N+5B−6N+9B−7N+23B+8N5.022.524.016.001721+58.8
4Sanchez Velez, Alex Leonardo1676ECU+25N+9B=2B+16N+6B−1N−7N4.527.027.013.751749+24.0
5Atiencia Merino, Jose Luis1678ECU+20B−3N=12B+17N=14B+13N=1B4.525.027.015.251535-31.6
6Sozoranga Barahona,Jordy Alexander1846ECU+23B+16N+3B−1B−4N+11N−2B4.028.530.013.501664-49.2
7Correa Mateo, Edward Mathias1518ECUF−1B+10N+20N+3B−2N+4B4.027.527.515.501740+52.8
8Bustos Chaveewong, Kyle1727ECU+19N+11B−1N−2N+20B+16N−3B4.026.528.511.501589-36.0
9Delgado Quijije, Arturo Joseba1487ECU+15B−4N+21B−3N−13B+14N+16B4.023.025.012.001566+18.8
10Siguenza Dutan, Victor Andre1425ECU−2B+18N−7B+15N−16B+21N+12B4.022.524.512.001500+20.4
11Minchala Rivera, Iker Matias1503ECU+21B−8N−13B+22N+12N−6B+17N4.020.022.010.501556+4.4
12Basantes Urina, Maickel Steven1468ECU−1N+17B=5N+13N−11B+19B−10N3.525.528.011.251292-34.4
13Mero Pesantes, Carlos Ramon0ECU−14N+22B+11N−12B+9N−5B=18N3.522.524.511.5014880.0
14Padilla Puruncajas, Arturo1603ECU+13B−2N−20B+21N=5N−9B+19N3.522.024.010.251395-28.4
15FIDE 36548260—−9N+25B−17N−10B+24N=18B+23N3.516.516.54.0012060.0
16Ng Parra, Gabriel Elias1513ECU+24N−6B+23N−4B+10N−8B−9N3.022.023.06.501387-33.6
17Mora Navarrete, Leonel Fabricio0ECU=18B−12N+15B−5B=23N+20N−11B3.020.522.07.7512290.0
18Jaya Abarca, Samuel Alejandro1555ECU=17N−10B=19N−23B+22B=15N=13B3.018.520.08.25606-28.0
19Loor Realpe, Eddy Andres0ECU−8B−21N=18B+24N+25B−12N−14B2.517.017.02.5012620.0
20Luspa Ramirez, Jeremy Ariel0ECU−5N+24B+14N−7B−8N−17BF2.020.020.04.5014330.0
21Sanchez Eras, Maikel Yazed0ECU−11N+19B−9N−14BF−10B+25N2.018.018.02.506940.0
22Toapanta Lara, Lian Andahir0ECU−3B−13NF−11B−18N+25N+24B2.016.516.51.007160.0
23Delgado Bazurto, Eicker Steven0ECU−6NF−16B+18N=17B−3N−15B1.521.521.54.5014080.0
24FIDE 36610910—−16B−20N+25N−19B−15BF−22N1.013.013.00.007140.0
25FIDE 36767900—−4B−15N−24BF−19N−22B−21B0.015.515.50.008760.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets