II Aberto do Brasil de Mossoro 2026

Open SwissStandard

34 players participated in this 6-round tournament, held from 06 Feb 2026 to 08 Feb 2026 in Mossoro RN, Brazil. 3 titled players. Top 10 Elo average was 2018, and top seed was Vitor Firmo de Souza Rocha (🇧🇷 BRA, 2165).

Pedro Lucas Araujo Dantas (🇧🇷 BRA, 2057) won with 5.0/6, ahead of Davi Alves Do Nascimento (4.5) and Edson Henrique Lima (4.5). Dantas won solo starting round 4.

The biggest upset came in round 1: Antonio Dutra Da Silva (1766) beat Vitor Firmo de Souza Rocha (2165), a +399-point gap.

Location

🇧🇷Mossoro RN, Brazil

Dates

06 Feb 2026 → 08 Feb 2026

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 6 rounds

Top seed

🇧🇷Vitor Firmo de Souza Rocha2165

Avg top 10

2,018

Participants

Titled players · 3

FM×1

CM×1

WCM×1

Federations · 1 represented

🇧🇷Brazil×32

Top 3

🥇
Pedro Lucas Araujo Dantas
🇧🇷BRA·2057
5.0pts·2192perf+38.8
🥈
CMDavi Alves Do Nascimento
🇧🇷BRA·2077
4.5pts·2163perf+14.0
🥉
Edson Henrique Lima
🇧🇷BRA·1999
4.5pts·2120perf+20.2

How it unfolded

Top 6 · 6 rounds

Pedro Lucas Araujo Dantas led from R4; +0.5-point edge over the runner-up.

Co-leaders

Dantas5Rocha4.5Do Nascimento4.5Lima4.5De Oliveira4.5Freitas4

R4–R6 · LEAD HELD

Pedro Lucas Araujo Dantas held the sole lead from R4 through R6 without losing it.

WIN STREAKS · 3 top finishers

Pedro Lucas Araujo Dantas 4 wins (R1–R4)Vitor Firmo de Souza Rocha 4 wins (R2–R5)CM Davi Alves Do Nascimento 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Pedro Lucas Araujo Dantas	*	—	½	½
2Vitor Firmo de Souza Rocha	—	*	½	—
3CMDavi Alves Do Nascimento	½	½	*	½
4Edson Henrique Lima	½	—	½	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Dantas, Pedro Lucas Araujo	2057	BRA	+20N	+6B	+7N	+4B	=2N	=3B	5.0	21.5	24.0	19.50	2192	+38.8
2	Do Nascimento, Davi AlvesCM	2077	BRA	+12B	+9N	+16B	=3N	=1B	=5N	4.5	21.5	24.5	17.50	2163	+14.0
3	Lima, Edson Henrique	1999	BRA	+21N	+19B	+11N	=2B	=10N	=1N	4.5	19.5	22.0	15.50	2120	+20.2
4	De Oliveira, Fellipe Prado Figueira	1868	BRA	+24N	+10B	+8N	−1N	=13B	+12N	4.5	19.5	21.5	14.75	2124	+33.8
5	Rocha, Vitor Firmo de Souza	2165	BRA	−23B	+22N	+25B	+14B	+7N	=2B	4.5	16.5	18.5	14.25	2063	-9.6
6	De Andrade E Silva, Carlos Eduardo	1899	BRA	+27B	−1N	+17B	−13N	+18B	+16N	4.0	17.5	19.5	11.00	1953	+16.8
7	Acioli,Luyse Victoria GomesWCM	1973	BRA	+26B	+25N	−1B	+19N	−5B	+15N	4.0	17.5	19.5	10.00	1978	+2.0
8	Freitas,Marcos Antonio da Costa	1936	BRA	+18N	=14B	−4B	=15N	+23B	+19N	4.0	17.0	19.0	11.25	1932	+0.6
9	Macedo, Maximo ValerioFM	1909	BRA	+15N	−2B	=30N	=11B	+17N	+25B	4.0	16.0	17.5	10.50	1889	-1.0
10	De Sousa, Daniel Aguiar	2038	BRA	+17B	−4N	+18B	+16N	=3B	−13N	3.5	18.5	21.5	11.25	1928	-12.8
11	Batista, Davi De Azevedo	1913	BRA	+22B	+13N	−3B	=9N	−12B	+23N	3.5	18.0	20.0	10.00	1896	+0.4
12	Silva, Carolina Alves	1756	BRA	−2N	=15B	+24N	+20B	+11N	−4B	3.5	18.0	20.0	9.50	1889	+13.0
13	Urquiza, Marcello de Albuquerque	2088	BRA	F	−11B	+21N	+6B	=4N	+10B	3.5	18.0	18.0	12.25	2030	-5.0
14	Oliveira, Carlos Henrique Lopes	1815	BRA	+34B	=8N	+23B	−5N	−16B	+22N	3.5	16.0	16.0	6.50	1856	+5.2
15	Da Costa, Cayr Jefferson R	0	BRA	−9B	=12N	+31N	=8B	+20N	−7B	3.0	18.0	19.5	7.75	1806	0.0
16	Martins, Alan Pedro Vasconcelos	1931	BRA	+31N	+30B	−2N	−10B	+14N	−6B	3.0	17.0	18.5	6.50	1826	-13.6
17	Vieira, Erico Vinicius Duarte	1699	BRA	−10N	+28B	−6N	+24B	−9B	+26N	3.0	15.5	17.5	6.00	1680	-3.4
18	Pereira, Francisco Neris	1630	BRA	−8B	+27N	−10N	+34B	−6N	+24B	3.0	15.5	15.5	4.00	1155	-7.8
19	Santos Lima, Carlos Roberto	1835	BRA	+33B	−3N	+34N	−7B	+21N	−8B	3.0	15.5	15.5	3.00	1695	-28.0
20	Gomes, Genildo de Souza	1699	BRA	−1B	=23N	+33B	−12N	−15B	+32N	2.5	15.0	15.5	3.00	1587	-8.6
21	Moreira, Mario Wedney de Lima	1645	BRA	−3B	+32N	−13B	+28N	−19B	=30N	2.5	14.5	16.0	4.25	1540	-10.8
22	Diogenes, Jarlene Meyre	1482	BRA	−11N	−5B	=32B	+33N	+31N	−14B	2.5	14.5	15.0	2.75	1592	+12.8
23	Da Silva, Antonio Dutra	1766	BRA	+5N	=20B	−14N	=30B	−8N	−11B	2.0	18.0	19.5	6.50	1725	-8.6
24	Macedo, Maximo Ian Farias De	0	BRA	−4B	+26N	−12B	−17N	+28B	−18N	2.0	16.0	18.0	4.00	1479	0.0
25	Macedo, Alexandre Soares de	1827	BRA	F	−7B	−5N	+29B	+30N	−9N	2.0	16.0	16.0	3.50	1712	-12.4
26	Teixeira, Alexandre Cesar Fernan	1644	BRA	−7N	−24B	−28N	+27B	+29N	−17B	2.0	13.0	15.0	4.00	1036	-10.8
27	Oliveira, Samuel Neithan Ferreira	0	BRA	−6N	−18B	−29N	−26N	+33B	+34B	2.0	11.5	11.5	0.50	924	0.0
28	Medeiros, Julia Lavinia Simao De	0	BRA	F	−17N	+26B	−21B	−24N	+31B	2.0	11.0	11.0	3.50	1637	0.0
29	Cordeiro, Andreas Felipe Holanda	0	BRA	F	F	+27B	−25N	−26B	+33N	2.0	6.5	6.5	2.50	936	0.0
30	De Lima, Deyvid Felipe Gomes	1570	BRA	F	−16N	=9B	=23N	−25B	=21B	1.5	13.5	13.5	4.25	1667	+18.0
31	Macedo, Elaine L Lacerda De F	1558	BRA	−16B	=33N	−15B	+32N	−22B	−28N	1.5	12.0	12.5	1.75	908	-28.0
32	FIDE 44780125	0	—	F	−21B	=22N	−31B	+34N	−20B	1.5	9.0	9.0	1.25	1274	0.0
33	De Macedo, Sofia Farias	0	BRA	−19N	=31B	−20N	−22B	−27N	−29B	0.5	12.0	13.5	0.75	1322	0.0
34	FIDE 538085240	0	—	−14N	F	−19B	−18N	−32B	−27N	0.0	13.0	13.0	0.00	960	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Dantas, Pedro Lucas AraujoBRA
+38.8
5.0 pts · #1
2De Oliveira, Fellipe Prado FigueiraBRA
+33.8
4.5 pts · #7
3Lima, Edson HenriqueBRA
+20.2
4.5 pts · #4

Top rating losers

1Santos Lima, Carlos RobertoBRA
-28.0
3.0 pts · #23
2Macedo, Elaine L Lacerda De FBRA
-28.0
1.5 pts · #30
3Martins, Alan Pedro VasconcelosBRA
-13.6
3.0 pts · #14

Biggest upsets

R1+399 Elo gap
Da Silva, Antonio Dutra1766 beat Rocha, Vitor Firmo de Souza2165
R2+175 Elo gap
Batista, Davi De Azevedo1913 beat Urquiza, Marcello de Albuquerque2088
R2+170 Elo gap
De Oliveira, Fellipe Prado Figueira1868 beat De Sousa, Daniel Aguiar2038