CChessStats

Campeonato Acreano STD 2025

Open SwissStandard

29 players participated in this 6-round tournament, held from 19 Jun 2025 to 22 Jun 2025 in Rio Branco AC, Brazil. Top 10 Elo average was 1815, and top seed was Antonio Alves Leitao Neto (🇧🇷 BRA, 1962).

Ricardo Moura Da Silva (🇧🇷 BRA, 1954) won with 5.0/6, ahead of Antonio Alves Leitao Neto (5.0) and Odannys Azaharez Frometa (4.5). Da Silva won on tie-break after catching the field in the final round.

The biggest upset came in round 5: Yvan Lukas Bertoldo Araujo (1689) beat Reginaldo Sousa Oliveira (1889), a +200-point gap.

Location
🇧🇷Rio Branco AC, Brazil
Dates
19 Jun 2025 → 22 Jun 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Top seed
🇧🇷Antonio Alves Leitao Neto1962
Avg top 10
1,815
Participants
29
Federations · 1 represented
🇧🇷Brazil×19
Top 3

How it unfolded

Top 6 · 6 rounds

Tight race until R6; 2 players tied at 5.0/6, decided on Buchholz.

Co-leaders
14
8
3
1
1
2
1.534.56R1R2R3R4R5R6Frometa takes lead
Da Silva5Leitao Neto5Frometa4.5Sturza4Peixoto4Da Silva4
R5 · LEADER CHANGE21 Jun

Odannys Azaharez Frometa takes the sole lead (4.5/5).

R6 · TIEBREAK CLUSTER

2 players finish on 5.0/6. Da Silva takes the title on Buchholz Cut1 (21.5).

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Ricardo Moura Da Silva lost to Antonio Alves Leitao Neto (White).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Ricardo Moura Da Silva*
0
1
—
2Antonio Alves Leitao Neto
1
*
0
1
3Odannys Azaharez Frometa
0
1
*—
4Vernei Dutra Sturza—
0
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Da Silva, Ricardo Moura1954BRA+5N+9B+6N−2B+7N+3N5.021.525.520.502045+11.0
2Leitao Neto, Antonio Alves1962BRA+20B+10N+4B+1N−3B+9N5.021.523.519.002047+10.4
3Frometa, Odannys Azaharez1869BRA+14N+12B=7N+8B+2N−1B4.521.524.517.501985+32.4
4Sturza, Vernei Dutra1807BRA+19B+17N−2N=7B+12N=6B4.019.522.013.001816+4.0
5Da Silva, Elson Ruben Gomes0BRA−1B+23N+24B+10N=6N=11B4.019.021.012.0018020.0
6Peixoto Filho, Paulo Roberto N.1782BRA+15B+27N−1B+13N=5B=4N4.019.020.011.001806+3.6
7Peixoto, Luis Fernando de Oliveira1724BRA+21B+24N=3B=4N−1B+13N4.018.520.511.251822+10.0
8Oliveira, Reginaldo Sousa1889BRA+26B+13N+11B−3N−9B+14N4.018.519.511.001742-15.2
9Araujo, Yvan Lukas Bertoldo1689BRA+23B−1N+26B+20N+8N−2B4.018.019.09.001810+16.4
10Arantes, Michael Silva1718BRA+29N−2B+14N−5B+15N+16B4.018.018.09.001162-8.0
11Silva, Antonelli Santos1753BRA+16N+22B−8N=12B+18B=5N4.017.019.011.251576-18.4
12Souza , Neurismar Da Rocha1649BRA+25B−3N+27B=11N−4B+18N3.517.018.07.501537-7.4
13De Araujo, Antonio Marcos Diniz1653BRA+18N−8B+16N−6B+22N−7B3.017.519.57.50998-19.0
14Da Silva, Igor Diore Palza Porfir0BRA−3B+25N−10B+21N+?B−8B3.016.516.54.0015780.0
15Nascimento, Douglas Cunha0BRA−6N+28B−18N+17B−10B+21N3.015.516.56.0015760.0
16Bonner, Isabela Meneses0BRA−11B+?N−13B+26N+20B−10N3.014.014.03.0014910.0
17De Oliveira, Luiz Carlos1604BRA+28B−4BF−15N+19N+22B3.012.512.55.501007-4.8
18Ueda, Lucas Kentaro0BRA−13B=19N+15B+?B−11N−12B2.516.016.04.258860.0
19FIDE 5380138600—−4N=18B−?N+25N−17B+27B2.512.512.54.259060.0
20FIDE 5380472840—−2N+21B+22N−9B−16N−24B2.016.018.04.0010260.0
21FIDE 5380472760—−7N−20N+23B−14B+29N−15B2.014.014.02.009240.0
22Torquato, Maria Jannayna De Barro0BRA+?B−11N−20B+27N−13B−17N2.013.013.01.0014620.0
23FIDE 5380471870—−9N−5B−21N+29B−24N+26N2.013.013.01.008890.0
24FIDE 5380472330—F−7B−5N−?N+23B+20N2.012.012.04.008660.0
25FIDE 5380472170—−12N−14B+29N−19B+26B−?N2.010.010.01.008290.0
26FIDE 5380139080—−8N+29B−9N−16B−25N−23B1.015.015.00.009890.0
27FIDE 5380471950—F−6B−12N−22B+28N−19N1.013.013.01.009160.0
28FIDE 5380472250—−17N−15N−?BF−27B+29N1.07.07.00.008060.0
29FIDE 5380472410—−10B−26N−25B−23N−21B−28B0.011.012.00.009180.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets