CChessStats

Campeonato Brasiliense Absoluto de Xadrez Classico Semifinal I

Open SwissStandard

20 players participated in this 6-round tournament, held from 10 Jul 2025 to 17 Jul 2025 in Brasilia DF, Brazil. Top 10 Elo average was 1887, and top seed was Paulo Santanna (🇧🇷 BRA, 2022).

Ricardo De Villa Nova Japiassu (🇧🇷 BRA, 1946) won with 4.5/6, ahead of Raimundo Nascimento Felix (4.5) and Leonardo Martins Tomazette (4.0). Japiassu took the lead from round 5, winning on tie-break.

The biggest upset came in round 1: Raphael Frota Fontenele E Silva (1710) beat Paulo Santanna (2022), a +312-point gap.

Location
🇧🇷Brasilia DF, Brazil
Dates
10 Jul 2025 → 17 Jul 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 6 rounds
Top seed
🇧🇷Paulo Santanna2022
Avg top 10
1,887
Participants
20
Federations · 1 represented
🇧🇷Brazil×20
Top 3

How it unfolded

Top 6 · 6 rounds

Tight race until R3; 2 players tied at 4.5/6, decided on Buchholz.

Co-leaders
7
2
1
1
1
2
1.534.56R1R2R3R4R5R6Japiassu takes lead
Felix4.5Japiassu4.5Tomazette4Damasceno Martins4Xavier4Noguerol3.5
R5 · LEADER CHANGE13 Jul

Ricardo De Villa Nova Japiassu takes the sole lead (4.0/5).

R6 · TIEBREAK CLUSTER

2 players finish on 4.5/6. Japiassu takes the title on Buchholz Cut1 (19.0).

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Raimundo Nascimento Felix lost to Ricardo De Villa Nova Japiassu (Black).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Raimundo Nascimento Felix*
0
½
1
2Ricardo De Villa Nova Japiassu
1
*
½
—
3Leonardo Martins Tomazette
½
½
*—
4Carlos E Souza Damasceno Martins
0
——*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Japiassu, Ricardo De Villa Nova1946BRA=8B+10N=3B+15N+2B=5N4.519.021.015.252052+11.0
2Felix, Raimundo Nascimento1897BRA+14B=3N+4N+12B−1N+11B4.518.521.014.502058+20.6
3Tomazette, Leonardo Martins0BRA+11N=2B=1N=5N+10B=12B4.019.022.014.0019250.0
4Damasceno Martins, Carlos E Souza1829BRA+19B+5N−2B−9N+6B+10N4.018.519.511.501923+10.0
5Xavier, Matheus Henrique Lopes1945BRA+17N−4B+19N=3B+7N=1B4.017.518.510.251824-18.8
6Forster, Tiago Saito1827BRA=7N−11B+8N+16B−4N+13B3.516.518.59.751852+3.6
7Macedo, Tiago0BRA=6B+8N−9B+18N−5B+15N3.516.518.08.7518780.0
8Noguerol, Davi Vinueza1706BRA=1N−7B−6B+20N+14B+17N3.515.515.56.251852+19.6
9Santanna, Paulo2022BRA−13N+20B+7N+4B=12NF3.513.013.09.001851-14.8
10Martins,Miguel Souza Damasceno0BRA+16N−1B+13N+11B−3N−4B3.018.020.07.5018480.0
11Robinson, Malcolm1874BRA−3B+6N+17B−10N+15B−2N3.017.018.57.002021+15.0
12De Souza, Paulo Goncalves1861BRAF+18N+15B−2N=9B=3N3.015.515.57.251936+12.0
13E Silva, Raphael Frota Fontenele1710BRA+9B−15N−10B=14N+18B−6N2.514.516.06.251743+3.2
14Mendes, Caio Franco1581BRA−2N−16B+20N=13B−8N+19B2.513.513.52.251562-7.6
15Maio Guedes, Luis Augusto1889BRA+20N+13B−12N−1B−11N−7B2.016.516.52.501704-22.6
16Gomes,Flavio Vieira1780BRA−10B+14N=18B−6N=17BF2.012.012.04.001702-12.0
17De Azevedo,Rafael Severo1698BRA−5BF−11N+19B=16N−8B1.513.513.52.001504-33.6
18Filgueira, Billy Brian Moraes0BRAF−12B=16N−7B−13N+20B1.511.011.01.0016170.0
19Caixeta, Icaro Noe0BRA−4NF−5B−17N+20B−14N1.012.012.00.0014630.0
20Jansen, Enzo Barbosa1463BRA−15B−9N−14B−8B−19N−18N0.013.014.00.00953-28.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets