CChessStats

Regional Centro Oeste Amador STD 2025 U2300

Open SwissStandard

19 players participated in this 5-round tournament, held from 13 Nov 2025 to 25 Nov 2025 in Goiania GO, Brazil. 1 titled players. Top 10 Elo average was 1917, and top seed was Marlos de Almeida Damasceno (🇧🇷 BRA, 2130).

Pedro Igor Goncalves Melo (🇧🇷 BRA, 1742) won with 4.0/5, ahead of Paulo Estevao Rosa (4.0) and Joaquim de Deus Filho (4.0). Melo won on tie-break after catching the field in the final round.

The biggest upset came in round 5: Pedro Igor Goncalves Melo (1742) beat Newton Pereira Pinto (1972), a +230-point gap.

Location
🇧🇷Goiania GO, Brazil
Dates
13 Nov 2025 → 25 Nov 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 5 rounds
Top seed
Avg top 10
1,917
Participants
19
Titled players · 1
CM×1
Federations · 1 represented
🇧🇷Brazil×18
Top 3

How it unfolded

Top 6 · 5 rounds

Tight race until R5; 3 players tied at 4.0/5, decided on Buchholz. Title race narrowed from 2 co-leaders at R4 to 3 at the finish.

Co-leaders
6
3
4
2
3
1.52.545R1R2R3R4R5
R5 · TIEBREAK CLUSTER

3 players finish on 4.0/5. Melo takes the title on Buchholz Cut1 (10.5).

WIN STREAKS · 2 top finishers

Pedro Igor Goncalves Melo 3 wins (R3–R5)Joaquim de Deus Filho 3 wins (R2–R4)

Key matchups · top 4

Head-to-head between the four finishers

Grille américaine

#PlayerEloFedR1R2R3R4R5PtsBu C1BuSBPerfΔ
1Melo, Pedro Igor Goncalves1742BRA+9B6N+11B+5N+7B4.010.512.510.002126+97.2
2Rosa, Paulo Estevao1901BRA+16B+18N=8B+6N=3B4.09.59.56.252017+11.8
3Deus Filho, Joaquim de1811BRA=17B+19N+13N+7B=2N4.09.09.06.752163+43.6
4De Paiva Filho, Luiz Americo1938BRA5B+12N+18B=8N+6B3.510.010.05.751841-7.8
5Lopes, Fabiano Moura1747BRA+4N13B+15N1B+16B3.010.511.05.001881+36.4
6Mariano, Marceley MartinsCM1962BRA+15N+1B=7N2B4N2.514.015.06.251863-12.8
7Pinto, Newton Pereira1972BRA+10B+11N=6B3N1N2.513.015.05.751830-18.4
8De Moura, Valderi Nascimento1814BRA=12BF=2N=4B+13N2.511.512.06.752036+18.0
9Da Silva Santos, Henry Franklin1926BRA1N15B+14N+18B=10N2.59.59.53.251623-30.8
10Sopko, Cassio Roberto1810BRA7N+14B=16N=12B=9B2.59.09.54.501780-2.4
11Costa, Paulo Sergio1825BRA+14N7B1N+15B12N2.010.511.53.001748-7.2
12Silvino, Eduardo Ribeiro0BRA=8N4BF=10N+11B2.010.510.54.5018470.0
13Saad, Davi Pedro1893BRAF+5N3B+16N8B2.010.010.03.501770-26.4
14Roeder, Guilherme H Oliveira1514BRA11B10N9B+19B+18N2.07.07.00.001624+15.6
15Gautier, Heitor Carvalho Luz1761BRA6B+9N5B11NF1.010.010.02.501672-9.0
16Campos,Otavio Moraes1708BRA2NF=10B13B5N0.511.511.51.251516-16.4
17Damasceno, Marlos de Almeida2130BRA=3NFFFF0.56.56.52.001811-7.4
18FIDE 5380677060F2B4N9N14B0.012.012.00.0010200.0
19Santos, Jessica Souza1717BRAF3BF14NF0.08.08.00.00863-45.2

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets