Clasificatorio de Divisiones ADEA cuarta division 2026

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68 players participated in this 7-round tournament, held from 02 May 2026 to 03 May 2026 in Centro Civico Escazuceno, Costa Rica. 2 federations represented. Top 10 Elo average was 1586, and top seed was Victor Sebastian Ortiz Portuguez (🇨🇷 CRC, 1665).

Aidan Malik Mena Alvarez (🇨🇷 CRC, 1549) won with 6.5/7, ahead of Jackson Robert Cosman (6.0) and Victor Sebastian Ortiz Portuguez (5.5). Mena Alvarez shared the lead from round 4 and won solo starting round 5.

The biggest upset came in round 5: Aidan Malik Mena Alvarez (1549) beat Victor Sebastian Ortiz Portuguez (1665), a +116-point gap.

Location

🇨🇷Centro Civico Escazuceno, Costa Rica

Dates

02 May 2026 → 03 May 2026

Time control

Standard: 30 minutes for game with 30 seconds increment from move 1

System

Swiss · 7 rounds

Top seed

🇨🇷Victor Sebastian Ortiz Portuguez1665

Avg top 10

1,586

Participants

Federations · 2 represented

🇨🇷Costa Rica×39

🇵🇦Panama×1

Top 3

🥇
Aidan Malik Mena Alvarez
🇨🇷CRC·1549
6.5pts·1915perf+79.2
🥈
Jackson Robert Cosman
🇨🇷CRC·1611
6.0pts·1779perf+41.6
🥉
Victor Sebastian Ortiz Portuguez
🇨🇷CRC·1665
5.5pts·1652perf-4.4

How it unfolded

Top 6 · 7 rounds

Aidan Malik Mena Alvarez 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

Mena Alvarez6.5Cosman6Peraza Cedrez5.5Arrieta Lopez5.5Ortiz Portuguez5.5Briceno Little5

R5–R7 · LEAD HELD

Aidan Malik Mena Alvarez held the sole lead from R5 through R7 without losing it.

WIN STREAKS · 3 top finishers

Aidan Malik Mena Alvarez 5 wins (R1–R5)Jackson Robert Cosman 3+3 wins (R1–R3, R5–R7)Daniel Peraza Cedrez 3 wins (R2–R4)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Aidan Malik Mena Alvarez	*	—	—	½
2Jackson Robert Cosman	—	*	—	—
3Daniel Peraza Cedrez	—	—	*	0
4Mikel Gael Arrieta Lopez	½	—	1	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	Pts	Bu C1	Bu	SB	Perf	Δ
1	Mena Alvarez, Aidan Malik	1549	CRC	+54N	+33B	+42N	+21B	+3N	=4B	+6N	6.5	26.5	29.0	26.25	1915	+79.2
2	Cosman, Jackson Robert	1611	CRC	+37N	+44B	+6N	−3B	+42N	+13B	+7N	6.0	26.5	29.5	24.00	1779	+41.6
3	Ortiz Portuguez, Victor Sebastian	1665	CRC	+48N	+28B	+7N	+2N	−1B	+23N	=4B	5.5	31.0	34.0	24.75	1652	-4.4
4	Arrieta Lopez, Mikel Gael	1492	CRC	+26B	+55N	+10B	=14N	+5B	=1N	=3N	5.5	31.0	33.5	25.25	1674	+49.2
5	Peraza Cedrez, Daniel	1481	CRC	=35B	+34N	+19B	+22N	−4N	+31B	+13N	5.5	25.5	29.0	21.75	1744	+40.4
6	Chaves Rivera, Dominic Gael	1607	CRC	+32B	+25N	−2B	+29N	+8B	+24N	−1B	5.0	29.5	33.0	20.50	1606	+3.6
7	Saldana Estribi, Ailianis Mixian	0	PAN	+47B	+8N	−3B	+32N	+15N	+10B	−2B	5.0	29.5	32.5	21.00	1584	+11.8
8	Solano Bonilla,Julian	1533	CRC	+31N	−7B	+18N	+33B	−6N	+42B	+16N	5.0	26.0	29.0	19.00	1493	-11.6
9	Fuentes Cabrera, Andy	0	CRC	+15N	+?B	−22N	+17N	−24B	+21B	+33N	5.0	24.5	24.5	16.50	1525	0.0
10	Perez Amador, Sebastian Alberto	0	CRC	+60N	+59B	−4N	+54B	+11N	−7N	+24B	5.0	24.0	26.0	15.50	1485	0.0
11	Azofeifa Retana, Cesar Augusto	1486	CRC	+46B	−20N	+37B	+43N	−10B	+45N	+23B	5.0	22.5	25.5	16.50	1560	+13.6
12	Briceno Little, Diego	1463	CRC	=39B	−35N	+67B	+34N	=22B	+43N	+20B	5.0	21.5	22.0	14.75	1786	+34.8
13	Sandoval Blanco, Gustavo	1564	CRC	+65B	=19N	+35B	+20N	+14B	−2N	−5B	4.5	28.0	29.0	15.25	1502	-8.4
14	Morris Portilla, Yisha Love	1586	CRC	+53N	+18B	+36N	=4B	−13N	−16B	+31N	4.5	26.0	29.0	17.25	1577	-2.4
15	Arrieta Lopez, Iker Gorka	1633	CRC	−9B	+52N	+26B	+45N	−7B	=20N	+40B	4.5	24.5	27.5	15.50	1266	-25.6
16	Villegas Villalobos, Oscar	0	CRC	F	+53B	=31N	+19N	+27B	+14N	−8B	4.5	24.5	24.5	17.75	1520	0.0
17	FIDE 6566081	0	—	+56N	+64B	−21N	−9B	=18B	+29N	+32B	4.5	23.5	24.5	13.25	1313	0.0
18	Molina Fernandez, Fabian Enrique	1478	CRC	+27B	−14N	−8B	+61B	=17N	+55N	+43B	4.5	23.5	24.5	12.75	1544	+25.6
19	Zhou Fernandez, Isabella	1436	CRC	+63N	=13B	−5N	−16B	+53N	+54B	+36N	4.5	23.5	24.5	12.25	1308	-9.2
20	Mesen Diaz, Emma	1477	CRC	+49N	+11B	=30N	−13B	+36N	=15B	−12N	4.0	26.5	29.5	15.75	1449	+1.2
21	Villalobos Garcia, Fabricio	1556	CRC	+67B	+40N	+17B	−1N	−23B	−9N	+45B	4.0	26.5	27.0	11.50	672	-50.0
22	Corrales Arias, Cristopher	1527	CRC	F	=23N	+9B	−5B	=12N	+46N	+25B	4.0	26.5	26.5	16.50	1502	-5.6
23	Serrano Brenes, Danny Sebastian	1451	CRC	+58N	=22B	+38N	=30B	+21N	−3B	−11N	4.0	26.0	28.5	14.00	1480	+6.4
24	Pozo Miranda, Camila	1551	CRC	+29N	−42B	+48N	+46B	+9N	−6B	−10N	4.0	25.0	28.0	15.00	793	-15.2
25	Chacon Rubi, Alejandro	1520	CRC	+41N	−6B	+28N	−42B	+57N	+44B	−22N	4.0	22.5	25.0	13.00	1519	-0.4
26	FIDE 6576532	0	—	−4N	+?B	−15N	+51B	−44N	+50B	+42N	4.0	22.0	22.0	9.00	674	0.0
27	Santhosh, Mithila Lakshmi	0	CRC	−18N	−38B	+49N	+60B	−16N	+47B	+48N	4.0	21.5	23.5	11.00	652	-18.0
28	FIDE 6580548	0	—	+62B	−3N	−25B	+64N	−29B	+34N	+52B	4.0	21.0	22.0	8.50	1412	0.0
29	Aguilar Brenes, Steven Rolando	0	CRC	−24B	+68N	+?N	−6B	+28N	−17B	+44N	4.0	20.5	20.5	7.00	1381	0.0
30	Charpentier Mendez, Joshua Alberto	1531	CRC	+66B	+43N	=20B	=23N	F	F	+46B	4.0	15.0	15.0	11.00	1560	+5.2
31	Briceno Little, Jenifer	1499	CRC	−8B	+47N	=16B	+57N	+39B	−5N	−14B	3.5	26.0	28.5	11.25	733	-46.8
32	Blanco Chacin, Santiago Alejandro	0	CRC	−6N	+41B	+44N	−7B	=33N	+38B	−17N	3.5	25.0	28.0	11.75	1505	0.0
33	FIDE 6578667	0	—	+?B	−1N	+63B	−8N	=32B	+39N	−9B	3.5	24.5	24.5	6.25	718	0.0
34	Sandi Sanchez, Jose Gerardo	1454	CRC	=38N	−5B	+41N	−12B	+56N	−28B	+57N	3.5	24.0	26.5	10.25	1397	-3.2
35	FIDE 6576052	0	—	=5N	+12B	−13N	−?B	−38N	+58B	+56N	3.5	23.5	23.5	12.75	1523	0.0
36	Vindas Rapson, Abigail	0	CRC	+45B	+39N	−14B	+55N	−20B	=40N	−19B	3.5	23.0	25.5	10.75	1266	0.0
37	Mora Diaz, Matteo	0	CRC	−2B	+61N	−11N	−47B	+49N	+60B	=41N	3.5	22.5	23.5	7.75	1265	0.0
38	Brenes Quiros, Daniel Eduardo	0	CRC	=34B	+27N	−23B	−39N	+35B	−32N	+55B	3.5	22.0	24.5	11.75	1444	0.0
39	FIDE 6574297	0	—	=12N	−36B	+56N	+38B	−31N	−33B	+54N	3.5	21.5	24.0	11.00	1317	0.0
40	FIDE 6562086	0	—	+?N	−21B	−54N	+59B	+48N	=36B	−15N	3.5	19.5	19.5	6.75	734	0.0
41	Rodriguez Navarro, Aaron	0	CRC	−25B	−32N	−34B	+68N	+59B	+62N	=37B	3.5	17.5	17.5	4.75	670	-46.4
42	Perez Franco, Andrew De Dojshua	0	CRC	+68B	+24N	−1B	+25N	−2B	−8N	−26B	3.0	29.5	29.5	8.00	1462	0.0
43	Chaves Solano, Alonso	1414	CRC	+50N	−30B	+59N	−11B	+47N	−12B	−18N	3.0	24.5	26.5	8.00	704	-59.2
44	Herrera Cajina, Jose Alberto	0	CRC	+61B	−2N	−32B	+52N	+26B	−25N	−29B	3.0	24.5	25.5	8.00	765	-25.2
45	FIDE 6549250	0	—	−36N	+60B	+51N	−15B	+50N	−11B	−21N	3.0	23.0	25.0	8.00	714	0.0
46	Fernandez Rovira, Carolina	0	CRC	−11N	+49B	+50N	−24N	+?B	−22B	−30N	3.0	23.0	23.0	6.00	707	0.0
47	FIDE 6580653	0	—	−7N	−31B	+66B	+37N	−43B	−27N	+?B	3.0	20.0	20.0	4.50	638	0.0
48	FIDE 6573193	0	—	−3B	+62N	−24B	+63N	−40B	+?N	−27B	3.0	19.0	19.0	2.00	730	0.0
49	FIDE 6570534	0	—	−20B	−46N	−27B	+66N	−37B	+68N	+62B	3.0	16.5	16.5	2.00	630	0.0
50	FIDE 6549632	0	—	−43B	+65N	−46B	+67N	−45B	−26N	+59B	3.0	16.0	16.5	3.50	608	0.0
51	FIDE 6573185	0	—	−55B	+66N	−45B	−26N	+65B	−52N	+60N	3.0	15.5	16.5	4.00	607	0.0
52	FIDE 6563767	0	—	−?N	−15B	+?N	−44B	+61N	+51B	−28N	3.0	15.5	15.5	4.00	666	0.0
53	FIDE 6573045	0	—	−14B	−16N	+68B	−?N	−19B	+63N	+?B	3.0	14.5	14.5	1.00	693	0.0
54	Castro Solano, Ahren Gabriel	0	CRC	−1B	+?N	+40B	−10N	=55B	−19N	−39B	2.5	25.5	25.5	4.75	1160	0.0
55	Salazar Espinoza, Mauricio	0	CRC	+51N	−4B	+64N	−36B	=54N	−18B	−38N	2.5	22.5	23.5	5.25	671	-33.2
56	FIDE 6575633	0	—	−17B	=57N	−39B	+58N	−34B	+64N	−35B	2.5	20.0	21.0	4.75	619	0.0
57	FIDE 6572367	0	—	−59N	=56B	+58N	−31B	−25B	+65N	−34B	2.5	18.0	19.0	4.75	664	0.0
58	FIDE 6573088	0	—	−23B	=67N	−57B	−56B	+?N	−35N	+68B	2.5	13.0	13.0	0.25	653	0.0
59	FIDE 6580599	0	—	+57B	−10N	−43B	−40N	−41N	+61B	−50N	2.0	20.5	21.5	3.50	669	0.0
60	FIDE 6550746	0	—	−10B	−45N	+62B	−27N	+63B	−37N	−51B	2.0	19.5	20.5	2.00	615	0.0
61	FIDE 6565638	0	—	−44N	−37B	+65B	−18N	−52B	−59N	−64B	1.0	17.0	18.0	1.00	638	0.0
62	FIDE 6580521	0	—	−28N	−48B	−60N	F	+64B	−41B	−49N	1.0	16.5	16.5	1.00	730	0.0
63	FIDE 6571816	0	—	−19B	F	−33N	−48B	−60N	−53B	+?B	1.0	16.0	16.0	0.00	602	0.0
64	FIDE 6569757	0	—	F	−17N	−55B	−28B	−62N	−56B	+61N	1.0	15.5	15.5	1.00	607	0.0
65	FIDE 6573096	0	—	−13N	−50B	−61N	+?B	−51N	−57B	−66N	1.0	15.0	15.0	0.00	732	0.0
66	FIDE 6528279	0	—	−30N	−51B	−47N	−49B	−?N	F	+65B	1.0	14.0	14.0	1.00	722	0.0
67	FIDE 6551149	0	—	−21N	=58B	−12N	−50B	F	F	F	0.5	14.5	14.5	1.25	763	0.0
68	FIDE 6558720	0	—	−42N	−29B	−53N	−41B	F	−49B	−58N	0.0	19.0	19.0	0.00	730	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Mena Alvarez, Aidan MalikCRC
+79.2
6.5 pts · #4
2Arrieta Lopez, Mikel GaelCRC
+49.2
5.5 pts · #5
3Cosman, Jackson RobertCRC
+41.6
6.0 pts · #2

Top rating losers

1Chaves Solano, AlonsoCRC
-59.2
3.0 pts · #50
2Villalobos Garcia, FabricioCRC
-50.0
4.0 pts · #44
3Briceno Little, JeniferCRC
-46.8
3.5 pts · #63

Biggest upsets

R5+116 Elo gap
Mena Alvarez, Aidan Malik1549 beat Ortiz Portuguez, Victor Sebastian1665
R5+105 Elo gap
Serrano Brenes, Danny Sebastian1451 beat Villalobos Garcia, Fabricio1556