Taca Joao Batista Ribeiro Neto 2025
29 players participated in this 7-round tournament, held from 16 May 2025 to 18 May 2025 in Florianopolis SC, Brazil. 2 titled players from 2 federations. Top 10 Elo average was 1975, and top seed was Everaldo Matsuura (🇧🇷 BRA, GM, 2354).
Everaldo Matsuura (🇧🇷 BRA, GM, 2354) won with 7.0/7, ahead of Josue Henrique de Freitas Whately (5.5) and Joao Antonio Bertolu Mariot Vaz (4.5). Matsuura won solo starting round 3.
The biggest upset came in round 1: Vitor Augusto Colaco Arosteguy (1647) beat Wellington Gubiani Maiberg (1978), a +331-point gap.
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How it unfolded
Top 6 · 7 roundsGM Everaldo Matsuura led from R3; +1.5-point edge over the runner-up.
GM Everaldo Matsuura never relinquished the lead after R3; final gap +1.5 over the runner-up.
GM Everaldo Matsuura beat Josue Henrique de Freitas Whately (Black).
GM Everaldo Matsuura 7 wins (R1–R7)Josue Henrique de Freitas Whately 4 wins (R3–R6)Joao Antonio Bertolu Mariot Vaz 3 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1GMEveraldo Matsuura | * | 1 | 1 | — |
| 2Josue Henrique de Freitas Whately | 0 | * | ½ | — |
| 3Joao Antonio Bertolu Mariot Vaz | 0 | ½ | * | 1 |
| 4Angelo Augusto Pacheco Ferreira | — | — | 0 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Matsuura, EveraldoGM | 2354 | BRA | +27B | +2N | +5B | +9N | +3B | +6N | +10N | 7.0 | 25.0 | 26.0 | 26.00 | 2787 | +7.1 |
| 2 | Whately, Josue Henrique de Freitas | 1941 | BRA | +18N | −1B | +24N | +17B | +7N | +9B | =3B | 5.5 | 24.0 | 26.0 | 16.75 | 2101 | +51.2 |
| 3 | Mariot Vaz, Joao Antonio Bertolu | 1996 | BRA | +6B | F | +19N | +7B | −1N | +4B | =2N | 4.5 | 27.5 | 27.5 | 17.75 | 2107 | +16.0 |
| 4 | Ferreira, Angelo Augusto Pacheco | 1802 | BRA | +28B | −5N | +13B | +12N | =9B | −3N | +14N | 4.5 | 21.0 | 21.5 | 11.25 | 1876 | +18.0 |
| 5 | Souza dos Santos,Matheus Garcett | 1981 | BRA | +29N | +4B | −1N | +8B | −6N | −14B | +18B | 4.0 | 25.0 | 25.0 | 11.00 | 1923 | -6.0 |
| 6 | Orsini, Cesar Oliveira | 1705 | BRA | −3N | +21B | F | +20N | +5B | −1B | +8N | 4.0 | 23.5 | 24.0 | 12.00 | 1889 | +54.0 |
| 7 | Moura, Bernardo Lalane Mascarenha | 1854 | BRA | =25N | +23B | +15B | −3N | −2B | =13N | +12B | 4.0 | 21.0 | 22.5 | 10.25 | 1777 | -17.6 |
| 8 | Arosteguy, Vitor Augusto Colaco | 1647 | BRA | +10N | +26B | −9B | −5N | +21B | +11N | −6B | 4.0 | 20.0 | 21.0 | 9.50 | 1873 | +76.8 |
| 9 | Mafra, Kaiser LuizCM | 2094 | BRA | F | +11B | +8N | −1B | =4N | −2N | +17B | 3.5 | 26.5 | 26.5 | 11.75 | 1952 | -16.8 |
| 10 | Maiberg, Wellington Gubiani | 1978 | BRA | −8B | F | +23N | +26B | =17N | +12N | −1B | 3.5 | 19.5 | 19.5 | 7.25 | 1808 | -20.0 |
| 11 | Costa, Pedro Henrique | 1884 | BRA | +12B | −9N | F | =14B | +20N | −8B | =16N | 3.0 | 18.5 | 18.5 | 8.00 | 1664 | -48.4 |
| 12 | De Oliveira, Ricardo W Lima | 1571 | BRA | −11N | +29B | +22N | −4B | +26N | −10B | −7N | 3.0 | 18.0 | 18.0 | 3.00 | 1746 | +54.8 |
| 13 | Flesch, Lucas Henrique Ye | 1741 | BRA | F | +25B | −4N | =19B | −14N | =7B | +22N | 3.0 | 17.5 | 17.5 | 6.75 | 1788 | +15.6 |
| 14 | Romao, Hugo Egidio | 0 | BRA | F | =22B | F | =11N | +13B | +5N | −4B | 3.0 | 16.5 | 16.5 | 9.50 | 1824 | 0.0 |
| 15 | Da Cruz, Karoliny Taiane | 1832 | BRA | +20B | F | −7N | +22B | F | −17N | +25N | 3.0 | 12.0 | 12.0 | 5.50 | 1668 | -17.2 |
| 16 | Esquinelato, Marcos Vinicius Molina | 1525 | BRA | F | =24B | −17N | +28N | F | +20B | =11B | 3.0 | 10.0 | 10.0 | 5.00 | 1639 | +7.6 |
| 17 | Telles, Arnoldo Beber | 1591 | BRA | F | F | +16B | −2N | =10B | +15B | −9N | 2.5 | 18.5 | 18.5 | 7.75 | 1853 | +57.2 |
| 18 | Koinski, Carlos Cesar | 1581 | BRA | −2B | −20N | F | +25N | =23B | +24B | −5N | 2.5 | 17.0 | 17.0 | 4.50 | 1525 | -11.8 |
| 19 | Panazzolo,Paulo Victor | 1832 | BRA | +21N | F | −3B | =13N | F | F | +20B | 2.5 | 11.5 | 11.5 | 5.50 | 1748 | -4.8 |
| 20 | Bueno, Marcos Da Silva Inacio | 1442 | BRA | −15N | +18B | +27N | −6B | −11B | −16N | −19N | 2.0 | 18.0 | 19.0 | 3.50 | 1567 | +29.2 |
| 21 | Salamanca Paraguayo, Mateo | 1412 | BOL | −19B | −6N | F | +24B | −8N | F | +23N | 2.0 | 14.5 | 14.5 | 4.00 | 1478 | +8.0 |
| 22 | Vieira, Jeyson | 1611 | BRA | F | =14N | −12B | −15N | +28B | =23N | −13B | 2.0 | 14.5 | 14.5 | 3.00 | 1344 | -49.6 |
| 23 | Baldez, David Lourenco | 1521 | BRA | F | −7N | −10B | +29N | =18N | =22B | −21B | 2.0 | 14.0 | 14.0 | 2.25 | 1554 | +4.4 |
| 24 | Abregu, Sofia Balbino de Barros | 0 | BRA | F | =16N | −2B | −21N | +29B | −18N | =28B | 2.0 | 13.5 | 13.5 | 1.75 | 1483 | 0.0 |
| 25 | Dhom Lemos,Frederico M Brescia | 1487 | BRA | =7B | −13N | −26N | −18B | F | +29N | −15B | 1.5 | 13.5 | 13.5 | 2.00 | 1550 | +13.2 |
| 26 | Gomes, Joao Paulo Santos | 1756 | BRA | F | −8N | +25B | −10N | −12B | F | F | 1.0 | 12.0 | 12.0 | 1.50 | 1478 | -28.8 |
| 27 | Ribeiro, Vanio Melo | 1759 | BRA | −1N | F | −20B | F | F | F | +29B | 1.0 | 9.0 | 9.0 | 0.00 | 1642 | -21.2 |
| 28 | FIDE 538034409 | 0 | — | −4N | F | F | −16B | −22N | F | =24N | 0.5 | 15.5 | 15.5 | 1.00 | 846 | 0.0 |
| 29 | Ferreira, Mauricio Vilela | 1700 | BRA | −5B | −12N | F | −23B | −24N | −25B | −27N | 0.0 | 13.5 | 13.5 | 0.00 | 863 | -110.4 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Arosteguy, Vitor Augusto ColacoBRA+76.84.0 pts · #7
- 2Telles, Arnoldo BeberBRA+57.22.5 pts · #14
- 3De Oliveira, Ricardo W LimaBRA+54.83.0 pts · #12
- 1Ferreira, Mauricio VilelaBRA-110.40.0 pts · #28
- 2Vieira, JeysonBRA-49.62.0 pts · #27
- 3Costa, Pedro HenriqueBRA-48.43.0 pts · #16
- R1+331 Elo gap
- R3+317 Elo gap
- R5+276 Elo gap