CChessStats

II Torneo Abierto Memorial Luis Araya Araya Infantil 2026

Open SwissStandard

33 players participated in this 7-round tournament, held from 18 Apr 2026 to 19 Apr 2026 in San Jose, Costa Rica. Top 10 Elo average was 1218, and top seed was David Gabriel Orna Chaves (🇨🇷 CRC, 1650).

David Gabriel Orna Chaves (🇨🇷 CRC, 1650) won with 6.5/7, ahead of Luca Sato (6.0) and Alejandro Jesus Orna Chaves (5.5). Orna Chaves won solo starting round 5.

The biggest upset came in round 3: Nicolas Ramirez Quiros (1484) beat Alejandro Jesus Orna Chaves (1640), a +156-point gap.

Location
🇨🇷San Jose, Costa Rica
Dates
18 Apr 2026 → 19 Apr 2026
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 7 rounds
Top seed
🇨🇷David Gabriel Orna Chaves1650
Avg top 10
1,218
Participants
33
Federations · 1 represented
🇨🇷Costa Rica×14
Top 3

How it unfolded

Top 6 · 7 rounds

David Gabriel Orna Chaves led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders
16
8
4
2
1
1
1
23.55.57R1R2R3R4R5R6R7
Orna Chaves6.5Sato6Orna Chaves5.5Larionov5Vargas Vargas5Villalta Pizarro5
R5–R7 · LEAD HELD

David Gabriel Orna Chaves held the sole lead from R5 through R7 without losing it.

WIN STREAKS · 3 top finishers

David Gabriel Orna Chaves 6 wins (R1–R6)Luca Sato 5 wins (R3–R7)Alejandro Jesus Orna Chaves 3 wins (R4–R6)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1David Gabriel Orna Chaves*—
½
1
2Luca Sato—*
0
—
3Alejandro Jesus Orna Chaves
½
1
*
1
4Lev Larionov
0
—
0
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Orna Chaves, David Gabriel1650CRC+32B+11N+5B+10N+4B+14N=3B6.527.528.525.751876+36.8
2Sato, Luca1421CRC+28B−3N+12B+19N+10B+4N+7B6.026.028.022.501723+63.6
3Orna Chaves, Alejandro Jesus1640CRC+22N+2B−7N+18B+6N+5B=1N5.530.533.525.751615-5.6
4Vargas Vargas, Yeison David1506CRC+30N+17B+6N+7B−1N−2B+16N5.030.032.019.501393-18.4
5Larionov, Lev1524CRC+33N+25B−1N+13B+17N−3N+15B5.027.028.016.001458-10.4
6Villalta Pizarro, Emanuel Isaac0CRC+26N+29B−4B+15N−3B+11N+14B5.025.027.016.507730.0
7Ramirez Quiros, Nicolas1484CRC+20B+23N+3B−4N=11B+10N−2N4.527.530.517.501515+6.4
8FIDE 65805480—=13N−18B+9B=12N+29B+17N=11B4.524.026.016.5014600.0
9Navarro Torres, Juan David0CRCF=13B−8N+31N+19B+21B+23N4.519.520.512.0014600.0
10Fauaz Bringas, Monica1491CRC+31B+14N+15B−1B−2N−7B+21N4.028.029.012.00718-56.0
11Duran Araya, Keilym Francinnie0CRC+27N−1B+26N+?B=7N−6B=8N4.025.525.59.5013740.0
12FIDE 65801220—=18N+24B−2N=8B+13N−16B+22N4.025.028.014.0014410.0
13Mesen Diaz, Emma1460CRC=8B=9N+20B−5N−12B+26N+19B4.024.026.513.00724-16.4
14Corrales Corrales, Fidel0CRC+?N−10B+24N+28B+18N−1B−6N4.024.024.08.507710.0
15FIDE 65636600—+?N+16B−10N−6B+28N+23B−5N4.023.023.09.007080.0
16FIDE 65642750—+21B−15N−18N+33B+20B+12N−4B4.022.523.511.007060.0
17FIDE 65783140—+?B−4N+21B+?N−5B−8B+20N4.020.520.56.0013690.0
18Marin Guevara, Jose0CRC=12B+8N+16B−3N−14B−?N+30B3.524.024.012.507460.0
19FIDE 65731930—−23B+31N+29N−2B−9N+25B−13N3.022.523.56.006410.0
20FIDE 65730960—−7N+?B−13N+25B−16N+27B−17B3.022.022.05.506720.0
21FIDE 65282790—−16N+22B−17N+30B+?B−9N−10B3.021.521.55.0014720.0
22FIDE 65750480—−3B−21N+31B−?N+24B+28N−12B3.018.518.56.008400.0
23FIDE 65793020—+19N−7B−?N+26B+?B−15N−9B3.018.518.55.506840.0
24FIDE 65730880—+?B−12N−14B−29N−22N+?B+28B3.015.015.02.0014720.0
25FIDE 65646400—+?B−5N−28B−20N+30B−19N+?B3.015.015.02.007240.0
26FIDE 65637670—−6B+?N−11B−23N+32N−13B=27N2.519.519.52.256600.0
27FIDE 65717600—−11B−?N−32B+?N+31B−20N=26B2.511.511.52.256520.0
28FIDE 65701000—−2N+30B+25N−14N−15B−22B−24N2.023.025.05.006210.0
29FIDE 65731850—F−6N−19B+24B−8N+?N−?B2.020.020.03.006520.0
30FIDE 65656380—−4B−28N+?B−21N−25N+32B−18N2.017.517.51.007060.0
31FIDE 65800170—−10N−19B−22N−9B−27NF+?B1.017.017.00.006910.0
32Murillo Mathiew, Thomas0CRC−1N−?B+27NF−26B−30NF1.013.513.52.508500.0
33FIDE 65733630—−5B+?N−?B−16NFFF1.09.09.00.006880.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets