Campeonato Amapaense de Xadrez Absoluto CAXA 2025 Etapa 3

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23 players participated in this 6-round tournament, held from 03 Jul 2025 to 06 Jul 2025 in Macapa AP, Brazil. Top 10 Elo average was 1875, and top seed was Hualason Jose Soares Machado (🇧🇷 BRA, 2007).

Pedro Gortz De Melo (🇧🇷 BRA, 1846) won with 4.5/6, ahead of Hualason Jose Soares Machado (4.5) and Argemiro Braga Guara Neto (4.5). De Melo shared the lead from round 2, winning on tie-break.

The biggest upset came in round 4: Pedro Gortz De Melo (1846) beat Hualason Jose Soares Machado (2007), a +161-point gap.

Location

🇧🇷Macapa AP, Brazil

Dates

03 Jul 2025 → 06 Jul 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 6 rounds

Top seed

🇧🇷Hualason Jose Soares Machado2007

Avg top 10

1,875

Participants

Federations · 1 represented

🇧🇷Brazil×23

Top 3

🥇
Pedro Gortz De Melo
🇧🇷BRA·1846
4.5pts·2205perf+78.0
🥈
Hualason Jose Soares Machado
🇧🇷BRA·2007
4.5pts·2004perf+0.6
🥉
Argemiro Braga Guara Neto
🇧🇷BRA·1970
4.5pts·1972perf+0.6

How it unfolded

Top 6 · 6 rounds

Tight race until R6; 3 players tied at 4.5/6, decided on Buchholz.

Co-leaders

Guara Neto4.5De Melo4.5Machado4.5Pires4Assuncao4D Almeida3.5

R6 · TIEBREAK CLUSTER

3 players finish on 4.5/6. De Melo takes the title on Buchholz Cut1 (19.5).

R6 · HEAD-TO-HEAD · WINNER VS 2ND

Argemiro Braga Guara Neto drew with Pedro Gortz De Melo (Black).

WIN STREAKS · 2 top finishers

Pedro Gortz De Melo 4 wins (R1–R4)Hualason Jose Soares Machado 3 wins (R1–R3)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Argemiro Braga Guara Neto	*	½	—	½
2Pedro Gortz De Melo	½	*	1	—
3Hualason Jose Soares Machado	—	0	*	—
4Enzo Luis Albuquerque Pires	½	—	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	De Melo, Pedro Gortz	1846	BRA	+11N	+16B	+6N	+2N	F	=3B	4.5	19.5	21.5	15.25	2205	+78.0
2	Machado, Hualason Jose Soares	2007	BRA	+9N	+10B	+13N	−1B	+7N	=5B	4.5	18.5	21.0	14.50	2004	+0.6
3	Guara Neto, Argemiro Braga	1970	BRA	=8B	+23N	=4B	+13N	+6B	=1N	4.5	18.0	18.0	12.00	1972	+0.6
4	Pires, Enzo Luis Albuquerque	1801	BRA	+19N	+7B	=3N	=5B	F	+16N	4.0	18.5	19.5	10.75	2044	+25.0
5	Assuncao, Danilo H Mendonca	1692	BRA	F	+17B	+18N	=4N	+15B	=2N	4.0	14.0	14.0	9.75	1937	+36.8
6	Neris, Aldrin Oliveira Diniz	1790	BRA	+20B	+8N	−1B	+10B	−3N	=7B	3.5	19.0	20.0	9.25	1867	+21.2
7	D Almeida, Pedro Gabriel Ferreira	1945	BRA	+23B	−4N	+9B	+16N	−2B	=6N	3.5	17.5	17.5	7.25	1863	-23.2
8	De Lima, Lucas Ribeiro	1730	BRA	=3N	−6B	+17N	−14B	+18N	+13B	3.5	14.5	16.0	7.75	1784	+13.6
9	Souza, Luiz Andre Silva De	1738	BRA	−2B	+21N	−7N	=19B	+17N	+14B	3.5	13.0	14.0	5.50	1769	+3.6
10	Carvalho, Cleber Del Castillo	1845	BRA	+21B	−2N	+11B	−6N	−16B	+20N	3.0	14.0	15.0	5.00	1613	-24.4
11	Ribeiro, Renan Rego	1628	BRA	−1B	+20N	−10N	−17B	+21N	+19B	3.0	11.0	12.0	3.00	1046	-17.6
12	De Magalhaes, Gustavo A Linhares	1713	BRA	F	−18B	=14N	+20B	=19N	+15N	3.0	8.5	8.5	5.25	1486	-12.0
13	De Sousa, Estevao Angelo	1800	BRA	+15B	+22N	−2B	−3B	=14N	−8N	2.5	17.5	18.5	4.75	1727	-20.8
14	Santos, Renan Correa	1729	BRA	−22B	=15N	=12B	+8N	=13B	−9N	2.5	15.0	16.0	7.50	1713	-5.2
15	Silva, Carlos Sashiel Dos Santos	0	BRA	−13N	=14B	+21N	+18B	−5N	−12B	2.5	13.5	14.5	3.75	1564	0.0
16	Quaresma, Givanildo Ribeiro	1797	BRA	F	−1N	+19B	−7B	+10N	−4B	2.0	16.0	16.0	4.00	1666	-13.0
17	Alencar, Victor Tupac Lima	0	BRA	F	−5N	−8B	+11N	−9B	=18B	1.5	15.5	15.5	3.75	1535	0.0
18	De Jesus, Debora Jamilly Goes	1629	BRA	F	+12N	−5B	−15N	−8B	=17N	1.5	14.5	14.5	3.75	1587	-6.0
19	Silva, Guilherme Melo Da	0	BRA	−4B	F	−16N	=9N	=12B	−11N	1.0	15.5	15.5	3.25	1496	0.0
20	Alves, Vinicius De Oliveira	0	BRA	−6N	−11B	+23B	−12N	F	−10B	1.0	12.5	12.5	0.00	1496	0.0
21	Santos, Bryan Warley Guedes Dos	0	BRA	−10N	−9B	−15B	+23N	−11B	F	1.0	12.0	12.0	0.00	1536	0.0
22	Del Aguila, Victor Montero	1945	BRA	+14N	−13B	F	F	F	F	1.0	5.0	5.0	2.50	1765	-9.4
23	Gomes, Willington Luis	1704	BRA	−7N	−3B	−20N	−21B	F	F	0.0	10.0	10.0	0.00	1158	-15.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1De Melo, Pedro GortzBRA
+78.0
4.5 pts · #2
2Assuncao, Danilo H MendoncaBRA
+36.8
4.0 pts · #8
3Pires, Enzo Luis AlbuquerqueBRA
+25.0
4.0 pts · #5

Top rating losers

1Carvalho, Cleber Del CastilloBRA
-24.4
3.0 pts · #19
2D Almeida, Pedro Gabriel FerreiraBRA
-23.2
3.5 pts · #4
3De Sousa, Estevao AngeloBRA
-20.8
2.5 pts · #10

Biggest upsets

R4+161 Elo gap
De Melo, Pedro Gortz1846 beat Machado, Hualason Jose Soares2007
R2+145 Elo gap
De Sousa, Estevao Angelo1800 beat Del Aguila, Victor Montero1945
R2+144 Elo gap
Pires, Enzo Luis Albuquerque1801 beat D Almeida, Pedro Gabriel Ferreira1945