Goiania Chess Open 2025

SwissStandard

93 players participated in this 7-round tournament, held from 23 Oct 2025 to 26 Oct 2025 in Goiania GO, Brazil. 6 titled players from 4 federations. Top 10 Elo average was 2245, and top seed was Diego Flores (🇦🇷 ARG, GM, 2558).

Diego Flores (🇦🇷 ARG, GM, 2558) won with 6.5/7, ahead of Neuris Delgado Ramirez (5.5) and Gabriel Gonzaga Garcia (5.5). Flores won solo starting round 6.

The biggest upset came in round 3: Vinicius Augusto Ribeiro (1843) beat Eduardo da Costa Marra (FM, 2203), a +360-point gap.

Location

🇧🇷Goiania GO, Brazil

Dates

23 Oct 2025 → 26 Oct 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 7 rounds

Top seed

🇦🇷GMDiego Flores2558

Avg top 10

2,245

Participants

Titled players · 6

GM×3

FM×2

CM×1

Federations · 4 represented

🇧🇷Brazil×59

🇵🇾Paraguay×1

🇦🇷Argentina×1

FIDE (no federation)×1

Top 3

🥇
GMDiego Flores
🇦🇷ARG·2558
6.5pts·2649perf+4.7
🥈
GMNeuris Delgado Ramirez
🇵🇾PAR·2488
5.5pts·2436perf-1.1
🥉
Gabriel Gonzaga Garcia
🇧🇷BRA·2139
5.5pts·2277perf+21.2

How it unfolded

Top 6 · 7 rounds

GM Diego Flores led from R6; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R6.

Co-leaders

Flores6.5Delgado Ramirez5.5Marra5.5Matsuura5.5Garcia5.5De Souza Sa5.5

R6–R7 · LEAD HELD

GM Diego Flores never relinquished the lead after R6; final gap +1.0 over the runner-up.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

GM Diego Flores drew with GM Neuris Delgado Ramirez (Black).

WIN STREAKS · 3 top finishers

GM Diego Flores 4 wins (R1–R4)GM Neuris Delgado Ramirez 4 wins (R1–R4)FM Eduardo da Costa Marra 3 wins (R4–R6)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1GMDiego Flores	*	½	—	—
2GMNeuris Delgado Ramirez	½	*	½	½
3FMEduardo da Costa Marra	—	½	*	—
4GMEveraldo Matsuura	—	½	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	Pts	Bu C1	Bu	SB	Perf	Δ
1	Flores, DiegoGM	2558	ARG	+45N	+27B	+9N	+3B	=2N	+13B	+7N	6.5	29.5	32.5	29.75	2649	+4.7
2	Delgado Ramirez, NeurisGM	2488	PAR	+63B	+14N	+10B	+23N	=1B	=5N	=4B	5.5	31.0	33.5	24.75	2436	-1.1
3	Garcia, Gabriel Gonzaga	2139	BRA	+86B	+8N	+17B	−1N	+16B	+10N	=5B	5.5	31.0	32.0	22.75	2277	+21.2
4	Marra, Eduardo da CostaFM	2203	BRA	+67N	+28B	−24N	+34B	+11N	+25B	=2N	5.5	26.5	28.5	21.75	2157	-1.4
5	Matsuura, EveraldoGM	2384	BRA	+53N	+78B	+58N	=7B	+15N	=2B	=3N	5.5	26.0	27.5	19.50	2317	-2.3
6	De Souza Sa, Apolo	2030	FID	+62B	+57N	+22B	=13N	=7N	+32B	=23N	5.5	24.5	27.0	20.25	2182	+21.2
7	Oliveira, Tiago Batista	2091	BRA	+71B	+44N	+19B	=5N	=6B	+8N	−1B	5.0	30.0	32.0	20.00	2165	+12.6
8	Melo, Pedro Igor Goncalves	1742	BRA	+35N	−3B	+77N	+9B	+58N	−7B	+32N	5.0	26.0	27.5	17.00	2097	+85.6
9	Ferraz, Michel Liah	1988	BRA	+49B	+50N	−1B	−8N	+69N	+57B	+24N	5.0	24.0	26.0	14.50	1915	-6.6
10	Japiassu, Ricardo De Villa Nova	1993	BRA	+91N	+72B	−2N	+44B	+27N	−3B	+26N	5.0	24.0	24.0	13.00	2030	+7.6
11	Almeida, Douglas De Castro	1886	BRA	+47B	+82N	−13B	+65N	−4B	+38N	+28B	5.0	23.0	24.0	14.00	1937	+0.8
12	Felix, Raimundo Nascimento	1941	BRA	+79N	+51B	−23N	+45B	F	+36N	+33B	5.0	19.0	19.0	15.00	1961	+3.6
13	De Siqueira, Luigy LiraFM	2366	BRA	F	+18B	+11N	=6B	+24N	−1N	+19B	4.5	30.0	30.0	20.75	2268	-6.2
14	Campagnolo, Fabiola	1765	BRA	+20N	−2B	+46N	+31B	=17B	+39N	−15N	4.5	26.5	29.5	17.25	1924	+12.8
15	De Oliveira, Aquiles Machado	2055	BRA	+61N	F	=16B	+36N	−5B	+29N	+14B	4.5	24.5	24.5	16.75	2023	-0.2
16	Santos, Abel Cardoso Dos	1876	BRA	+74N	+31B	=15N	=24B	−3N	+67B	=25N	4.5	24.0	26.0	14.25	1913	+2.4
17	Santos, Luciano Da Silva	1970	BRA	+46N	+37B	−3N	+57B	=14N	=24B	=48N	4.5	23.5	26.0	14.75	1824	-17.4
18	Lopes, Fabiano Moura	1747	BRA	+90B	−13N	+62B	+22N	−25B	=20N	+40B	4.5	23.5	23.5	12.75	1255	-12.4
19	Rosa, Paulo Estevao	1901	BRA	+65N	+60B	−7N	+67B	+21N	=23B	−13N	4.5	23.0	25.0	13.50	1904	-0.6
20	Hennemann, Bento Vaz	0	BRA	−14B	+63N	=76B	=?N	+51N	=18B	+37N	4.5	19.5	19.5	12.00	1647	0.0
21	Reges, Hilton Rodrigues	0	BRA	+?N	=39B	+?B	=25N	−19B	+44N	=29B	4.5	19.0	19.0	8.75	1831	0.0
22	Coelho, Marco Tulio Ferreira	0	BRA	+?N	+?B	−6N	−18B	=59N	+60B	+77B	4.5	16.5	16.5	5.25	1844	0.0
23	Azevedo Junior, Jose Ferreira	2139	BRA	F	+29N	+12B	−2B	+26N	=19N	=6B	4.0	28.5	31.0	18.00	2116	-1.8
24	Ribeiro, Vinicius Augusto	1843	BRA	+54B	+88N	+4B	=16N	−13B	=17N	−9B	4.0	27.0	27.0	13.00	1984	+14.6
25	Mariano, Marceley MartinsCM	1962	BRA	F	+69B	+26N	=21B	+18N	−4N	=16B	4.0	25.0	25.0	15.00	1996	+6.6
26	Kanzler, Karina Daniela Ferreira	1845	BRA	+41N	+70B	−25B	+47N	−23B	+30N	−10B	4.0	23.5	25.5	12.50	1231	-15.8
27	De Moura, Valderi Nascimento	1817	BRA	+30B	−1N	+71B	+42N	−10B	+81N	F	4.0	22.0	22.0	10.50	1305	-7.0
28	De Morais, Pedro Castro	1696	BRA	+89B	−4N	+49B	F	+41N	+35B	−11N	4.0	21.0	21.0	10.50	1192	-13.2
29	Queiroz, Anna Luiza	1688	BRA	+68N	−23B	+83N	=58B	+64N	−15B	=21N	4.0	20.0	21.0	9.00	1764	+6.4
30	De Carvalho, Raphael Modesto	0	BRA	−27N	+53B	=?N	+60B	=48N	−26B	+51N	4.0	19.5	19.5	10.00	1530	0.0
31	Dos Santos, Joao Vitor Pereira	0	BRA	+76B	−16N	+82B	−14N	−67N	+50B	+46N	4.0	18.5	19.5	8.50	1703	0.0
32	De Paiva Filho, Luiz Americo	1938	BRA	+83B	F	+59N	+38N	+81B	−6N	−8B	4.0	18.5	18.5	8.00	1087	-22.4
33	Arruda Filho, Ivo Pereira de	1818	BRA	=40N	+85B	F	+73N	=36B	+46B	−12N	4.0	18.0	18.0	9.50	1553	-13.2
34	Brandalise, Ricardo	1713	BRA	F	+73N	=80B	−4N	=77B	+43B	+64N	4.0	16.5	16.5	9.50	1875	+10.6
35	Lopes, Alvaro Faleiro	0	BRA	−8B	+86N	−38B	+82N	+?B	−28N	+72B	4.0	16.5	16.5	4.00	1630	0.0
36	Xavier, Lana Evellyn Santos	1549	BRA	F	+66B	+39N	−15B	=33N	−12B	+54N	3.5	22.5	22.5	11.00	1804	+40.8
37	Silva, Maria Vitoria de Sousa	1539	BRA	+84B	−17N	−47B	+52N	=40B	+59N	−20B	3.5	21.0	22.0	8.25	1139	-3.2
38	Capistano, Aoi Maria	0	BRA	+?N	−58B	+35N	−32B	+68N	−11B	=43N	3.5	21.0	21.0	7.75	1531	0.0
39	Oliveira, Douglas Carvalho	1854	BRA	+64B	=21N	−36B	+61N	+76N	−14B	F	3.5	19.0	19.0	8.75	1532	-24.8
40	Cardoso, Luiz Henrique Francisco	0	BRA	=33B	=48N	−57B	+?N	=37N	+76B	−18N	3.5	19.0	19.0	6.75	1617	0.0
41	Marquez, Theo Hermano Jayme	0	BRA	−26B	+?N	−44B	+50N	−28B	=?N	+60N	3.5	16.5	16.5	5.50	1498	0.0
42	Angosto Pierre, Tomas Benfica	0	BRA	F	=?B	+51N	−27B	+45N	−48B	+67N	3.5	15.0	15.0	8.00	1410	0.0
43	Gomes, Lucas Hilario	1616	BRA	F	F	+89B	+49N	+71B	−34N	=38B	3.5	12.5	12.5	6.75	913	-14.8
44	Braga, Marcelo Melem	1644	BRA	F	−7B	+41N	−10N	+65B	−21B	+47N	3.0	24.0	26.5	9.00	1219	-3.8
45	FIDE 538018063	0	—	−1B	+54N	+?B	−12N	−42B	−55N	+74B	3.0	23.0	23.0	5.00	1450	0.0
46	FIDE 538067714	0	—	−17B	+84N	−14B	+55N	+?B	−33N	−31B	3.0	21.0	21.0	4.00	1051	0.0
47	Capistano, Sakura Thereza	0	BRA	−11N	+?B	+37N	−26B	−57N	+70B	−44B	3.0	20.0	20.0	5.50	1459	0.0
48	Hitiro Matsunaga, Pedro	1699	BRA	F	=40B	=79N	F	=30B	+42N	=17B	3.0	19.5	19.5	10.25	1970	+6.6
49	FIDE 538067528	0	—	−9N	+?B	−28N	−43B	+88N	+56B	−52N	3.0	18.5	18.5	3.00	968	0.0
50	De Oliveira, Jessica Mota	1496	BRA	+92N	−9B	−81N	−41B	+74B	−31N	+68B	3.0	17.5	17.5	4.00	1117	-3.2
51	FIDE 538067420	0	—	+?B	−12N	−42B	+?N	−20B	+?N	−30B	3.0	17.0	17.0	0.00	1141	0.0
52	FIDE 538067609	0	—	F	−62N	+63B	−37B	+85N	F	+49B	3.0	15.5	15.5	6.50	739	0.0
53	Ferreira, Felipe Servian	0	BRA	−5B	−30N	+84B	F	+?N	F	+81B	3.0	13.5	13.5	2.00	1584	0.0
54	FIDE 538067684	0	—	−24N	−45B	+?N	F	+?B	+63N	−36B	3.0	13.0	13.0	2.50	897	0.0
55	FIDE 538067480	0	—	F	F	F	−46B	+83N	+45B	+69N	3.0	9.0	9.0	6.00	1453	0.0
56	FIDE 538067234	0	—	−?N	−61B	F	+?N	+82B	−49N	+?B	3.0	6.5	6.5	1.00	884	0.0
57	Palo,Gary Hufanda	1582	BRA	F	−6B	+40N	−17N	+47B	−9N	=65B	2.5	24.0	24.5	7.75	1178	-10.0
58	Pimenta, Heitor Castelar Britto	1966	BRA	+77B	+38N	−5B	=29N	−8B	F	F	2.5	19.5	19.5	7.00	1660	-48.0
59	FIDE 538018144	0	—	F	+89N	−32B	+70N	=22B	−37B	F	2.5	19.5	19.5	4.25	939	0.0
60	FIDE 538067188	0	—	+?B	−19N	=87B	−30N	+73B	−22N	−41B	2.5	19.0	19.0	2.25	1101	0.0
61	Rodrigues, Lucas Cruvinel	0	BRA	−15B	+56N	=78N	−39B	+66B	−72N	−?B	2.5	17.0	17.0	6.25	1388	0.0
62	FIDE 538067625	0	—	−6N	+52B	−18N	−68B	−70N	+88B	=?B	2.5	17.0	17.0	3.00	1089	0.0
63	FIDE 538067633	0	—	−2N	−20B	−52N	+?B	+84N	−54B	=?N	2.5	17.0	17.0	1.00	1688	0.0
64	Camargo, Samuel Resende De	0	BRA	−39N	=?B	+85N	F	−29B	+75N	−34B	2.5	16.0	16.0	3.00	952	0.0
65	Abreu, Ronaldo Goncalves	0	BRA	−19B	+?N	F	−11B	−44N	+?B	=57N	2.5	15.0	15.0	1.25	1431	0.0
66	Pereira, Rafael Goncalves	0	BRA	=?B	−36N	+?B	F	−61N	F	+?B	2.5	9.5	9.5	0.00	1490	0.0
67	FIDE 538067579	0	—	−4B	+90N	F	−19N	+31B	−16N	−42B	2.0	22.0	22.0	4.00	1193	0.0
68	FIDE 538067641	0	—	−29B	−71N	+?B	+62N	−38B	F	−50N	2.0	18.0	18.0	2.50	803	0.0
69	Da Silva, Fabio De Moraes Vaz	1430	BRA	F	−25N	+70B	+87N	−9B	−77N	−55B	2.0	16.0	16.0	2.50	1033	-3.2
70	FIDE 538067552	0	—	+?B	−26N	−69N	−59B	+62B	−47N	−83B	2.0	15.0	15.0	2.50	839	0.0
71	FIDE 538018098	0	—	−7N	+68B	−27N	+88B	−43N	F	F	2.0	14.5	14.5	2.00	1043	0.0
72	Carvalho, Abraao	1547	BRA	F	−10N	F	+83B	F	+61B	−35N	2.0	12.5	12.5	3.50	1147	-3.2
73	FIDE 538067706	0	—	F	−34B	+75N	−33B	−60N	−?N	+?B	2.0	12.5	12.5	2.00	982	0.0
74	FIDE 538067650	0	—	−16B	−76N	+?B	F	−50N	+?B	−45N	2.0	12.0	12.0	0.00	883	0.0
75	FIDE 538067447	0	—	F	−80N	−73B	+93N	F	−64B	+87N	2.0	8.0	8.0	0.50	1093	0.0
76	Bastos Rocha, Italo	0	BRA	−31N	+74B	=20N	F	−39B	−40N	F	1.5	20.0	21.5	4.25	1054	-9.6
77	Sales, Pedro Lucas Souza	0	BRA	−58N	F	−8B	F	=34N	+69B	−22N	1.5	18.0	18.0	4.00	1627	0.0
78	Oliveira Nascimento, Lucas George	1781	BRA	+81B	−5N	=61B	F	F	F	F	1.5	11.5	11.5	2.25	1381	-3.2
79	FIDE 538067269	0	—	−12B	+?N	=48B	F	F	F	F	1.5	11.5	11.5	1.50	1628	0.0
80	Saad, Davi Pedro	1893	BRA	F	+75B	=34N	F	F	F	F	1.5	7.0	7.0	4.00	1713	-9.6
81	Marra, Ulisses Espindola	0	BRA	−78N	F	+50B	F	−32N	−27B	−53N	1.0	17.0	17.0	3.00	1570	0.0
82	FIDE 538067374	0	—	+?N	−11B	−31N	−35B	−56N	F	F	1.0	16.0	16.0	0.00	1086	0.0
83	FIDE 538067587	0	—	−32N	F	−29B	−72N	−55B	F	+70N	1.0	15.0	15.0	2.00	924	0.0
84	FIDE 538067153	0	—	−37N	−46B	−53N	F	−63B	−?N	+93B	1.0	12.0	12.0	0.00	739	0.0
85	FIDE 538018160	0	—	F	−33N	−64B	=?N	−52B	=?N	−?B	1.0	9.5	9.5	0.00	1781	0.0
86	FIDE 538018195	0	—	−3N	−35B	F	+?N	F	F	F	1.0	9.5	9.5	0.00	1339	0.0
87	FIDE 538067455	0	—	F	F	=60N	−69B	−?N	F	−75B	0.5	11.5	11.5	1.25	759	0.0
88	FIDE 538067161	0	—	F	−24B	F	−71N	−49B	−62N	F	0.0	13.5	13.5	0.00	1043	0.0
89	FIDE 538067200	0	—	−28N	−59B	−43N	F	F	F	F	0.0	10.0	10.0	0.00	859	0.0
90	Nunes, Miguel Porto De Carvalho	0	BRA	−18N	−67B	F	F	F	F	F	0.0	9.5	9.5	0.00	947	0.0
91	FIDE 538018152	0	—	−10B	F	F	F	F	F	F	0.0	5.5	5.5	0.00	1193	0.0
92	FIDE 538067510	0	—	−50B	F	F	F	F	F	F	0.0	4.5	4.5	0.00	717	0.0
93	FIDE 538018179	0	—	F	−?N	−?B	−75B	−?N	−?B	−84N	0.0	3.0	3.0	0.00	1162	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Melo, Pedro Igor GoncalvesBRA
+85.6
5.0 pts · #16
2Xavier, Lana Evellyn SantosBRA
+40.8
3.5 pts · #23
3Garcia, Gabriel GonzagaBRA
+21.2
5.5 pts · #6

Top rating losers

1Pimenta, Heitor Castelar BrittoBRA
-48.0
2.5 pts · #44
2Oliveira, Douglas CarvalhoBRA
-24.8
3.5 pts · #31
3De Paiva Filho, Luiz AmericoBRA
-22.4
4.0 pts · #83

Biggest upsets

R3+360 Elo gap
Ribeiro, Vinicius Augusto1843 beat FMMarra, Eduardo da Costa2203
R3+305 Elo gap
Xavier, Lana Evellyn Santos1549 beat Oliveira, Douglas Carvalho1854
R4+246 Elo gap
Melo, Pedro Igor Goncalves1742 beat Ferraz, Michel Liah1988