CChessStats

VI IRT de Xadrez Classico de Mogi Guacu CBX FIDE Sub 2300

Open SwissStandard

22 players participated in this 6-round tournament, held from 31 Oct 2025 to 02 Nov 2025 in Mogi Guacu SP, Brazil. Top 10 Elo average was 1802, and top seed was Francisco Ferrari Pironti (🇧🇷 BRA, 1981).

Marcelo de Souza Dias (🇧🇷 BRA, 1939) won with 5.0/6, ahead of Francisco Ferrari Pironti (5.0) and Diogo Martin Chagas (4.5). Dias won on tie-break after catching the field in the final round.

The biggest upset came in round 4: Gabriel Guarnieri Silv Francisco (1547) beat Anderson Rodrigues Da Silva (1823), a +276-point gap.

Location
🇧🇷Mogi Guacu SP, Brazil
Dates
31 Oct 2025 → 02 Nov 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 6 rounds
Top seed
🇧🇷Francisco Ferrari Pironti1981
Avg top 10
1,802
Participants
22
Federations · 1 represented
🇧🇷Brazil×21
Top 3

How it unfolded

Top 6 · 6 rounds

Tight race until R4; 2 players tied at 5.0/6, decided on Buchholz.

Co-leaders
10
5
2
1
1
2
1.534.56R1R2R3R4R5R6Chagas takes lead
Dias5Pironti5Chagas4.5Ricieri4Carneiro4Dona Filho3.5
R5 · LEADER CHANGE02 Nov

Diogo Martin Chagas takes the sole lead (4.5/5).

R6 · TIEBREAK CLUSTER

2 players finish on 5.0/6. Dias takes the title on Buchholz Cut1 (19.5).

R4 · HEAD-TO-HEAD · WINNER VS 2ND

Marcelo de Souza Dias beat Francisco Ferrari Pironti (White).

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Marcelo de Souza Dias*
1
0
1
2Francisco Ferrari Pironti
0
*
1
1
3Diogo Martin Chagas
1
0
*—
4Vinicius de Andrade Ricieri
0
0
—*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Dias, Marcelo de Souza1939BRA+20N+17B+5N+2B−3N+4B5.019.520.516.002102+19.4
2Pironti, Francisco Ferrari1981BRA+13B+7N+4B−1N+12B+3B5.019.021.516.502033+14.8
3Chagas, Diogo Martin1828BRA+12N+19B=9N+5B+1B−2N4.519.521.014.501957+35.2
4Ricieri, Vinicius de Andrade1840BRA+22N+8B−2N+9B+7N−1N4.019.020.010.001850+1.0
5Carneiro, Ruan Souza1837BRA+14B+6N−1B−3N+18B+8N4.018.520.511.001668-26.0
6Dona Filho, Claudio Eduardo0BRA+11N−5B+17N−12B=9N+15B3.515.017.09.0016930.0
7Eto, Fabio Luis1778BRA+16N−2B+21N+8B−4BF3.017.518.56.501699-6.6
8Rosseto, Evandro0BRA+10B−4N+14B−7N+19B−5B3.016.518.07.0016780.0
9Guedes, Lucas Moraes1700BRAF+18N=3B−4N=6B+12N3.016.516.58.501750+8.0
10Trindade, Renan1681BRA−8N+16B+19NF+13BF3.012.512.56.502217+7.2
11Costa, Murilo1551BRA−6B−13N+20B−18N+21B+17N3.011.012.04.002490+53.6
12Pereira, Pedro Henrique Muniz1582BRA−3B=15N+13B+6N−2N−9B2.518.521.07.251442-26.4
13Romao, Richard Bryan Rodrigues0BRA−2N+11B−12N+21B−10N=18B2.515.516.55.0015980.0
14Caetano, Heitor Luiz1612BRA−5N+20B−8N+16B=15NF2.513.013.04.751600-2.4
15Francisco, Gabriel Guarnieri Silv1547BRA−19N=12B=18B+17N=14B−6N2.512.514.05.501797+38.8
16Ramos, Julia Lopes Da Silva1417BRA−7B−10N+22B−14N=20B+19N2.511.012.03.00890-21.2
17Da Silva, Anderson Rodrigues1823BRA+21B−1N−6B−15B+22N−11B2.015.016.02.001455-72.8
18Pereira, Fernando Borsatto0BRAF−9B=15N+11B−5N=13N2.015.015.05.5015720.0
19Rodrigues, Edson0BRA+15B−3N−10B=20N−8N−16B1.515.516.53.0014250.0
20Dos Anjos, Joao Miguel Silva0BRA−1B−14N−11N=19B=16N−22B1.014.515.52.0013080.0
21Porfirio, Renatta Molina1556BRA−17N+22B−7B−13N−11NF1.011.511.51.00917-36.4
22FIDE 5380319220—−4B−21N−16NF−17B+20N1.010.510.51.008590.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets