CChessStats

IV Festival de Divisiones ADAS Cuarta Division 2025

Open SwissStandard

102 players participated in this 7-round tournament, held from 01 Nov 2025 to 02 Nov 2025 in San Jose, Costa Rica. Top 10 Elo average was 1596, and top seed was Andres Stawski Oliva (🇨🇷 CRC, 1768).

Andres Stawski Oliva (🇨🇷 CRC, 1768) won with 7.0/7, ahead of Gary Esteban Torres Angulo (6.0) and Gabriel Viquez Alfaro (6.0). Stawski Oliva won solo starting round 6.

The biggest upset came in round 6: Diego Briceno Little (1413) beat Julian Garcia Mendez (1548), a +135-point gap.

Location
🇨🇷San Jose, Costa Rica
Dates
01 Nov 2025 → 02 Nov 2025
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 7 rounds
Top seed
Avg top 10
1,596
Participants
102
Federations · 1 represented
🇨🇷Costa Rica×80
Top 3

How it unfolded

Top 6 · 7 rounds

Andres Stawski Oliva led from R6; +1.0-point edge over the runner-up. Title race converged from 5 co-leaders at R4 to 1 by R6.

Co-leaders
52
28
13
5
2
1
1
23.55.57R1R2R3R4R5R6R7
R6–R7 · LEAD HELD

Andres Stawski Oliva never relinquished the lead after R6; final gap +1.0 over the runner-up.

WIN STREAKS · 3 top finishers

Andres Stawski Oliva 7 wins (R1–R7)Gary Esteban Torres Angulo 3+3 wins (R1–R3, R5–R7)Gabriel Viquez Alfaro 3+3 wins (R1–R3, R5–R7)

Key matchups · top 4

Head-to-head between the four finishers

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Stawski Oliva, Andres1768CRC+35B+60N+27B+3N+5B+6B+7N7.031.034.034.002310+38.4
2Torres Angulo, Gary Esteban1524CRC+68N+16B+13N6B+41N+20B+11N6.029.032.026.502328+60.8
3Viquez Alfaro, Gabriel1550CRC+10N+63B+36N1B+34N+33B+19N6.029.032.025.001730+40.0
4Montes Lopez, Daniel Antonio1455CRC+33B+24N+31B5N+38B+29N+9B6.027.531.526.001636+29.2
5Garcia Molina, Carlos Andres1615CRC+40N+44B+75N+4B1N+25B=6N5.531.033.523.751783+42.0
6Murillo Picado, Ricardo0CRC+100B+79N+30B+2N+29B1N=5B5.529.029.019.2516330.0
7Navas Pereira, Eduardo Kane1491CRC+88N+99B+84N=19B+14N+8B1B5.526.026.517.251572+11.2
8Gomez Guerrero, Fabrizio Josue1509CRC+49B+43N+81B=32N+12B7N+50B5.525.527.520.001682+28.4
9Sandoval Blanco, Gustavo0CRC+83B=22N+74B+55N+21B+19B4N5.525.527.519.2514680.0
10Badilla Flores, Luciano1524CRC3B+85N+70B+81N=23B+32N+22N5.524.026.017.751546+3.6
11Quesada Rodriguez, Oscar Luis1582CRCF+65B+15N+37B+13N+12N2B5.028.531.522.001737+37.2
12Gutierrez Chavarria, Joseph1605CRC+82N+39B+61N+25B8N11B+21N5.026.528.518.001562-17.2
13Barboza Viquez, Angelica0CRC+101N+14B2B+63N11B+83N+45N5.025.025.014.00753-28.4
14Orna Chaves, Alejandro Jesus0CRC+66B13N+?B+35N7B+67N+39B5.024.524.514.0014990.0
15Castillo Aragon, Jeremy Joshua0CRC30B+86N11B+48N+69B+31N+29B5.024.026.017.007820.0
16Jimenez Rodriguez, Steven0CRC+97B2N33B+90N+88B+47N+30B5.022.023.513.507240.0
17Solano Bonilla,Julian1537CRC+86B30N+82B+40N20B+62N+34B5.021.523.515.002261+32.0
18Chan Chen, Johnny1509CRC31B+76N49B+82N+51N+61B+41N5.020.522.515.002283+37.2
19Leiva Calvo, Luis Fernando1440CRC+91B+38N+62B=7N+32B9N3B4.528.030.015.751500+4.8
20Brenes Vega, Gabriel Enrique0CRC+?B+64N32B+26B+17N2N=23B4.527.027.014.7515640.0
21Charpentier Mendez, Joshua Alberto1438CRC=52N+42B+56N+50B9N+24N12B4.526.029.517.251769+84.4
22Azofeifa Retana, Cesar Augusto1441CRC+34N=9B+52N29N+55B+53N10B4.526.029.517.25724-16.4
23Mena Alvarez, Aidan Malik1633CRC+76B31N+68B=49N=10N+42B=20N4.524.527.016.251695+4.4
24Chavarria Aragon, Nelson De Jesus1447CRC+87N4B+71N+67B+61N21B=25N4.524.026.013.251445-0.4
25Alvarado Machado, E. Daniela0CRC+77N+?B+78N12N+31B5N=24B4.524.024.011.2512900.0
26Baquero Graterol, Azael Augusto0CRC+48B55N+66B20N+35B=30N+53B4.523.526.516.5014840.0
27Charpentier Badilla, Ian Sebastian1451CRC+80N+72B1N34B=77N+51B+49N4.523.526.013.75966-5.6
28Leguizamon Santamaria, Daniel A1552CRC=42N52B+65N+84B+36N49B+54N4.521.523.514.501732+12.2
29Rodriguez Chaves, Juan Carlos0CRC+41N+37B+59N+22B6N4B15N4.029.032.516.0015070.0
30Espinoza Rosales, Marco Antonio0CRC+15N+17B6N=36B+?N=26B16N4.029.029.014.2515580.0
31Morris Portilla, Yisha Love0CRC+18N+23B4N+59B25N15B+61N4.028.531.516.0015570.0
32Murillo Mathiew, Aimar Maria0CRC+58N+51B+20N=8B19N10B=36N4.027.531.016.2512790.0
33Obando Areas, Jose Nemesio0CRC4N+87B+16NF+39B3N+37B4.027.529.515.0014810.0
34Briceno Little, Diego1413CRC22B+83N+60B+27N3B+44B17N4.027.029.013.5014230.0
35Velasquez Mora, Steven Daniel1458CRC1N+57B+47N14B26N+63B+85N4.027.029.012.50966-6.0
36Villegas Villalobos, Oscar1431CRC+54B+95N3B=30N28B+74N=32B4.024.526.011.50743-13.0
37Arrieta Lopez, Iker Gorka1402CRC+92B29N+69B11N+40B+38N33N4.024.026.013.001649+40.0
38La Touche Barrantes, Julian1476CRC+45N19B+99N+78B4N37B+65N4.024.024.510.001252-46.8
39Lara Moreno, Jose Adrian1512CRC+93N12N+90B+45B33N+59B14N4.023.525.511.50831-13.6
40Solano Monge, Luis Guillermo1512CRC5B+89N+64B17B37N+73N+60B4.023.525.511.001311-42.4
41Duran Araya, Aaron Mathias1560CRC29B+92N+79B+73N2B+64N18B4.023.525.510.501375-29.6
42Ramirez Acuna, Samuel Jesus0CRC=28B21N+85B+74N=62B23N+64B4.022.024.011.251440-10.4
43Castillo Mendez, Anthony Alberto0CRC+46N8B51N+89B+84N45B+82N4.021.023.010.0014580.0
44Garcia Mendez, Julian1548CRC+89B5N53B+95N+63B34N+66B4.021.022.59.50810-14.0
45Sandi Azofeifa, Erick Gerardo0CRC38B+91N+?B39N+81B+43N13B4.021.021.08.0012690.0
46Herrera Chinchilla, Matias0CRC43B49N+86B+?N+60B50N+62B4.019.019.08.0014810.0
47Vargas Hernandez, Anthony Matias0CRC+?B81N35B+66N+?B16B+71N4.017.017.06.0014380.0
48Howell Navarro, Richard0CRC26N+?B?N15B+72N+?N+67B4.015.515.56.0015430.0
49Salazar Hernandez, Allan Z.0CRC8N+46B+18N=23B50N+28N27B3.528.031.515.7514790.0
50Soto Molina, Marlon Mathias1549CRCF+53N=55B21N+49B+46B8N3.526.029.512.75673-48.4
51Fernandez Fernandez, Denis Alankai0CRC+70B32N+43B=62N18B27N+77B3.523.526.011.006810.0
52Sanchez Centeno, Lisandra Angeline0CRC=21B+28N22B56B54N+99N+74B3.523.023.59.7514100.0
53Briceno Little, Jenifer0CRC+65N50B+44N=?B+56N22B26N3.523.023.010.5015420.0
54Mora Diaz, Matteo0CRC36N59B=58N+57B+52B+75N28B3.522.525.011.2513580.0
55Gonzalez Barboza, Josue David0CRC+?N+26B=50N9B22N+56B?N3.521.521.59.7514510.0
56Jimenez Noguera, Matias1538CRC+98B=74N21B+52N53B55N+83B3.519.520.57.75638-25.6
57Carballo Hernandez, Rolando0CRC60B35N=?B54N+92B+76B+78N3.517.517.57.006640.0
58FIDE 6562108032B70N=54B+92N74B+?N+87B3.517.017.05.7514250.0
59Solis Barrantes, Samantha0CRC+95B+54N29B31N+?B39N=?B3.517.017.05.0012700.0
60Gonzalez Arguedas, Gabriel0CRC+57N1B34N+80B46N+78B40N3.025.027.58.508400.0
61Duran Araya, Keilym Francinnie0CRC+72N+80B12B+88N24B18N31B3.024.026.07.507290.0
62FIDE 65646660+?N+77B19N=51B=42N17B46N3.023.523.56.2512130.0
63Herrera Solano, Daniel Emilio0CRC+85B3N+?B13B44N35N+90B3.023.023.04.006850.0
64Serrano Fonseca, Rachel Nicole0CRC+69N20B40N+100B+71N41B42N3.022.522.56.00717-52.0
65Peraza Cedrez, Daniel1473CRC53B11N28B+96N+95B+68N38B3.021.523.06.00737-25.4
66FIDE 6570070014N+101B26N47B+94N+84B44N3.021.521.54.006980.0
67Espinoza Leal, Jowell Darnell1480CRC+79B+100N88B24N+73B14B48N3.021.021.05.50647-22.0
68FIDE 657380002B+97N23N83B+89N65B+94N3.019.521.05.507510.0
69FIDE 6575129064B+?N37N+87B15N70B+84N3.019.019.04.0012990.0
70FIDE 6564275051N+58B10N77BF+69N+?B3.018.018.06.507240.0
71Santhosh, Mithila Lakshmi0CRC74B+98N24B+99N64B+90N47B3.017.017.53.506580.0
72FIDE 6576583061B27N+98B?N48B+95N+91B3.016.016.04.506520.0
73FIDE 65626470+?N75B+?N41B67N40B+86N3.015.515.52.007080.0
74Ortiz Montenegro, Yoycel0CRC+71N=56B9N42B+58N36B52N2.524.027.08.2512050.0
75Pazmino Acosta, Magdalena1480CRC+96B+73N5BF=78N54BF2.520.020.05.75810-13.2
76Leiton Rivas, Mariana0CRC23N18B89N+79B=99B57N+96B2.519.019.54.257780.0
77Blanco Chacin, Santiago Alejandro0CRC25B62N+?B+70N=27B?B51N2.518.518.55.2513360.0
78Umana Gonzalez, Robinson Jeremy0CRC+?N+?B25B38N=75B60N57B2.517.517.51.2515210.0
79Melendez Marroquin, Carlos Fabian0CRC67N6B41N76N=?B+102B+?N2.515.015.00.007190.0
80Barrantes Garro, Matias0CRC27B61N+93B60N?B=96N+99B2.514.514.53.256320.0
81Garrido Colina, Gerardo Antonio0CRC+94N+47B8N10B45N82B88N2.023.025.06.006800.0
82Gonzalez Chacon, Mariana0CRC12B+93N17N18BF+81N43B2.023.023.04.00759-36.4
83Vargas Hernandez, Kendall Gustavo0CRC9N34BF+68N+?B13B56N2.021.021.03.006930.0
84FIDE 65770240+?B+?N7B28N43B66N69B2.020.020.00.007220.0
85Rodriguez Solano, Sofia0CRC63N10B42NF+98B+91N35B2.019.519.53.006890.0
86Hernandez Montero, Sara0CRC17N15B46N+93B+?B?N73B2.019.019.02.007360.0
87Fernandez Alvarado, Jared Saul1404CRC24B33N+96B69N90B+97N58N2.018.520.03.00647-17.6
88FIDE 657790307BF+67N61B16N?N+81B2.018.518.55.0013360.0
89FIDE 6571590044N40B+76B43N68B+98N?B2.018.518.53.507060.0
90Hernandez Montero, Samara0CRC?B+?N39N16B+87N71B63N2.017.017.02.0014590.0
91FIDE 6564658019N45B94N+101B+?N85B72N2.015.515.50.006430.0
92FIDE 6576362037N41B=?N58B57N=?B+100B2.015.015.00.006790.0
93FIDE 6577091039B82B80N86N96B+?N+98B2.013.013.01.006610.0
94FIDE 6572014081B?N+91B?N66B+100N68B2.010.010.02.006120.0
95FIDE 6573762059N36B+101N44B65N72B=97N1.519.019.00.756650.0
96FIDE 6573959075N?B87N65B+93N=80B76N1.514.514.53.256560.0
97FIDE 6578349016N68BFF+?N87B=95B1.511.511.50.756050.0
98FIDE 6577083056N71B72N+?B85N89B93N1.015.515.50.007390.0
99Sandi Sanchez, Jose Gerardo0CRCF7N38B71B=76N52B80N0.521.021.01.256840.0
100FIDE 656996006N67BF64NF94B92N0.018.520.00.006750.0
101FIDE 6576966013B66N95B91NFFF0.013.513.50.006460.0
102FIDE 65701510?N?BFFF79NF0.04.54.50.008050.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers