Brazil Chess Series - Sao Paulo 2025
SwissStandard
47 players participated in this 9-round tournament, held from 26 Dec 2025 to 31 Dec 2025 in Sao Paulo SP, Brazil. 7 titled players from 4 federations. Top 10 Elo average was 2252, and top seed was Alexandr Fier (🇧🇷 BRA, GM, 2556).
Alexandr Fier (🇧🇷 BRA, GM, 2556) won with 9.0/9, ahead of Kaua Marques Silva (7.0) and Vinicius Taishun Lima (6.5). Fier won solo starting round 5.
The biggest upset came in round 2: Vinicius Taishun Lima (2008) beat Vinicius de Abreu Marques (IM, 2370), a +362-point gap.
Location
🇧🇷Sao Paulo SP, Brazil
Dates
26 Dec 2025 → 31 Dec 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 9 rounds
Titled players · 7
GM×1
IM×2
FM×3
CM×1
Federations · 4 represented
🇧🇷Brazil×44
🇻🇪Venezuela×1
🇨🇺Cuba×1
🇱🇾Libya×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 9 roundsGM Alexandr Fier led from R5; +2.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
Co-leaders
19
8
4
2
1
1
1
1
1
R5–R9 · LEAD HELD
GM Alexandr Fier never relinquished the lead after R5; final gap +2.0 over the runner-up.
R5 · HEAD-TO-HEAD · WINNER VS 2ND
GM Alexandr Fier beat FM Kaua Marques Silva (White).
WIN STREAKS · 3 top finishers
GM Alexandr Fier 9 wins (R1–R9)FM Kaua Marques Silva 4 wins (R1–R4)FM Matheus Mendes Domingues Ribeiro 3 wins (R5–R7)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1GMAlexandr Fier | * | 1 | — | 1 |
| 2FMKaua Marques Silva | 0 | * | ½ | 1 |
| 3FMMatheus Mendes Domingues Ribeiro | — | ½ | * | 0 |
| 4Vinicius Taishun Lima | 0 | 0 | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Fier, AlexandrGM | 2556 | BRA | +8B | +20N | +6B | +5N | +2B | +27N | +3N | +10B | +7N | 9.0 | 45.0 | 49.0 | 49.00 | 2992 | +9.6 |
| 2 | Silva, Kaua MarquesFM | 2351 | BRA | +12B | +11N | +7B | +3N | −1N | =5B | +20B | =4N | +9N | 7.0 | 48.5 | 53.0 | 38.00 | 2352 | +6.2 |
| 3 | Lima, Vinicius Taishun | 2008 | BRA | +18B | +46N | +4B | −2B | =6N | +13N | −1B | +8N | +11B | 6.5 | 48.5 | 49.5 | 30.75 | 2240 | +52.0 |
| 4 | Ribeiro, Matheus Mendes DominguesFM | 2317 | BRA | +34N | +15B | −3N | −10B | +16N | +25B | +30N | =2B | +5N | 6.5 | 41.5 | 44.5 | 29.50 | 2194 | -16.6 |
| 5 | Saiz Rodriguez, Daniel EvelioFM | 2204 | CUB | +17B | +13N | +27B | −1B | +10N | =2N | +8B | −6N | −4B | 5.5 | 48.5 | 52.5 | 28.00 | 2203 | +5.6 |
| 6 | Lage, Pedro FerreiraCM | 2203 | BRA | +16N | +21B | −1N | +14N | =3B | =10B | =23N | +5B | F | 5.5 | 45.0 | 45.0 | 28.00 | 2205 | +3.2 |
| 7 | Tsuboi, Edson KenjiIM | 2186 | BRA | +32B | +31N | −2N | +25B | +24B | −20N | =11B | +13N | −1B | 5.5 | 42.0 | 45.5 | 22.50 | 2065 | -9.5 |
| 8 | Campagnolo, Fabiola | 1769 | BRA | −1N | +45B | +44N | =20N | +14B | +21B | −5N | −3B | +30N | 5.5 | 39.5 | 40.5 | 17.25 | 1952 | +28.4 |
| 9 | Suzuki, Ernesto Koh | 1807 | BRA | −14B | =22N | +37B | −12N | +29B | +39N | +35B | +20N | −2B | 5.5 | 36.0 | 38.5 | 19.25 | 1944 | +23.4 |
| 10 | Pironti, Francisco Ferrari | 2103 | BRA | +22B | =14N | +30B | +4N | −5B | =6N | F | −1N | +12B | 5.0 | 45.0 | 48.5 | 24.75 | 2171 | +32.0 |
| 11 | Maset, Pedro Yuki Yoshida | 1835 | BRA | +36N | −2B | +19N | =26B | =23N | +12B | =7N | =30B | −3N | 5.0 | 41.0 | 44.0 | 21.75 | 1891 | +20.4 |
| 12 | Nunes, Rafael Klanfer | 1757 | BRA | −2N | +36B | +21N | +9B | −27B | −11N | +17B | +24N | −10N | 5.0 | 40.0 | 43.0 | 22.00 | 1933 | +36.4 |
| 13 | Bonilla Viamonte, Diego Armando | 1805 | VEN | +38N | −5B | +41N | =23B | +26N | −3B | +22N | −7B | =16N | 5.0 | 38.0 | 40.0 | 17.75 | 1857 | +5.4 |
| 14 | Dos Reis, Caique Mendes | 0 | BRA | +9N | =10B | +15N | −6B | −8N | −35B | =32N | +28B | +34B | 5.0 | 37.0 | 40.0 | 21.75 | 1871 | 0.0 |
| 15 | Serra, Alberto Gadelha | 1848 | BRA | +33B | −4N | −14B | −32N | +18B | +38N | +26N | =16B | =23B | 5.0 | 37.0 | 39.5 | 19.75 | 1796 | -15.6 |
| 16 | Spieker, Otavio Schmidt | 1713 | BRA | −6B | +39N | −24B | +38N | −4B | +33N | +31B | =15N | =13B | 5.0 | 35.5 | 38.0 | 17.00 | 1824 | +31.6 |
| 17 | Leal, Guilherme Alves de Souza | 1727 | BRA | −5N | +40B | −25N | +44B | −21N | +28B | −12N | +38B | +26N | 5.0 | 31.5 | 32.5 | 13.50 | 1670 | -22.8 |
| 18 | Jurado, Laura Alves | 1597 | BRA | −3N | −29B | +36N | −21B | −15N | +45B | +44N | +25B | +35N | 5.0 | 31.0 | 32.0 | 12.00 | 1768 | +66.8 |
| 19 | Nobre, Jose Adalberto Barbosa | 1678 | BRA | F | =42N | −11B | =37N | +47B | −26B | +39N | +21B | +24N | 5.0 | 26.0 | 26.0 | 14.50 | 1730 | +8.0 |
| 20 | El Zwei, Aiman Mohamed | 2067 | LBA | +45N | −1B | +29N | =8B | +42N | +7B | −2N | −9B | F | 4.5 | 39.5 | 39.5 | 15.25 | 2002 | -9.0 |
| 21 | Mariani, Kim Paul | 1803 | BRA | +44B | −6N | −12B | +18N | +17B | −8N | =34B | −19N | +31B | 4.5 | 37.5 | 38.5 | 16.00 | 1737 | -34.0 |
| 22 | Dos Santos, Rafaela Alves | 1691 | BRA | −10N | =9B | +28N | +43B | =30N | F | −13B | =35N | +29B | 4.5 | 31.5 | 31.5 | 15.50 | 1819 | +22.0 |
| 23 | Mazzolla, Marcos Flavio | 0 | BRA | =30B | +37N | F | =13N | =11B | +24N | =6B | F | =15N | 4.5 | 31.0 | 31.0 | 19.00 | 1900 | 0.0 |
| 24 | Santos, Abel Cardoso Dos | 1889 | BRA | −26N | +28B | +16N | +34B | −7N | −23B | +25N | −12B | −19B | 4.0 | 37.0 | 40.0 | 16.00 | 1770 | -25.2 |
| 25 | De Souza, Samuel B Ornelas | 1788 | BRA | +39B | −27N | +17B | −7N | +32B | −4N | −24B | −18N | +37N | 4.0 | 36.5 | 39.0 | 14.00 | 1800 | -5.2 |
| 26 | Maset, Lis Yumi Yoshida | 1592 | BRA | +24B | −30N | +31B | =11N | −13B | +19N | −15B | =34N | −17B | 4.0 | 36.0 | 39.0 | 16.50 | 1745 | +68.8 |
| 27 | Poeta, Caio Medeiros | 2160 | BRA | +28N | +25B | −5N | +35B | +12N | −1B | F | F | F | 4.0 | 35.5 | 35.5 | 16.00 | 2098 | -3.4 |
| 28 | Fiorindo Pereira, Guilherme | 1705 | BRA | −27B | −24N | −22B | +36N | +40B | −17N | +33B | −14N | +42B | 4.0 | 31.0 | 33.0 | 10.50 | 1684 | -14.0 |
| 29 | Dos Santos, Eduardo Zeraib Antun | 1757 | BRA | −46B | +18N | −20B | −39N | −9N | +36B | +43N | +41B | −22N | 4.0 | 28.5 | 29.5 | 11.50 | 1729 | -18.0 |
| 30 | Kikuchi, Alexandre Hideki Lopes | 1797 | BRA | =23N | +26B | −10N | F | =22B | +34N | −4B | =11N | −8B | 3.5 | 38.0 | 39.0 | 14.00 | 1797 | -3.8 |
| 31 | Da Silva, Camila Evaristo | 1774 | BRA | +40N | −7B | −26N | +41B | −34N | +42B | −16N | =37B | −21N | 3.5 | 29.0 | 31.0 | 7.50 | 1594 | -40.8 |
| 32 | Vieira, Luana Saddi | 1711 | BRA | −7N | +38B | −35N | +15B | −25N | F | =14B | F | +41N | 3.5 | 27.0 | 27.0 | 12.00 | 1752 | +2.8 |
| 33 | Da Silva, Joao Pedro M Soares | 1577 | BRA | −15N | −34B | =40N | +45B | =43N | −16B | −28N | +39B | =38N | 3.5 | 25.5 | 26.5 | 6.50 | 1490 | -20.4 |
| 34 | Ishida, Leopoldo Tetsuo | 1737 | BRA | −4B | +33N | F | −24N | +31B | −30B | =21N | =26B | −14N | 3.0 | 34.5 | 35.5 | 11.25 | 1746 | -1.2 |
| 35 | Muniz, Henrique Rocha | 1771 | BRA | F | F | +32B | −27N | =39B | +14N | −9N | =22B | −18B | 3.0 | 30.0 | 30.0 | 12.00 | 1644 | -38.4 |
| 36 | Ferreira De Souza, Ricardo | 1530 | BRA | −11B | −12N | −18B | −28B | +45N | −29N | −38B | +47N | +44B | 3.0 | 27.5 | 28.5 | 3.00 | 1444 | -11.6 |
| 37 | Shintate Junior, Paulo Sunao | 1641 | BRA | F | −23B | −9N | =19B | =44N | +43B | =42N | =31N | −25B | 3.0 | 27.0 | 27.0 | 7.25 | 1585 | -7.6 |
| 38 | Rodrigues, Jhonatan Gilberto Lima | 0 | BRA | −13B | −32N | F | −16B | +41N | −15B | +36N | −17N | =33B | 2.5 | 32.0 | 32.0 | 6.75 | 1548 | 0.0 |
| 39 | Juliani, Victor Boa | 0 | BRA | −25N | −16B | +45N | +29B | =35N | −9B | −19B | −33N | F | 2.5 | 31.0 | 31.0 | 6.50 | 1577 | 0.0 |
| 40 | Jomaa,Victor Rafael | 0 | BRA | −31B | −17N | =33B | F | −28N | −41B | +45N | −43B | =47N | 2.0 | 21.5 | 21.5 | 3.25 | 1479 | 0.0 |
| 41 | Takahara, Fabio | 1601 | BRA | F | F | −13B | −31N | −38B | +40N | +47B | −29N | −32B | 2.0 | 21.5 | 21.5 | 3.00 | 962 | -46.0 |
| 42 | Yokomizo, Wilton | 1620 | BRA | F | =19B | F | +47N | −20B | −31N | =37B | F | −28N | 2.0 | 21.0 | 21.0 | 5.00 | 1524 | -12.8 |
| 43 | Le Grand, Francois Roger Freire B | 0 | BRA | F | F | F | −22N | =33B | −37N | −29B | +40N | F | 1.5 | 17.0 | 17.0 | 3.75 | 1345 | 0.0 |
| 44 | Romano, Jose Vicente Marcondes | 0 | BRA | −21N | F | −8B | −17N | =37B | =47N | −18B | −45B | −36N | 1.0 | 28.0 | 28.0 | 2.00 | 1252 | 0.0 |
| 45 | Leite, Gina Dourado Rocha | 1650 | BRA | −20B | −8N | −39B | −33N | −36B | −18N | −40B | +44N | F | 1.0 | 27.0 | 27.0 | 1.00 | 904 | -90.4 |
| 46 | Marques, Vinicius de AbreuIM | 2370 | BRA | +29N | −3B | F | F | F | F | F | F | F | 1.0 | 17.0 | 17.0 | 4.00 | 1989 | -8.2 |
| 47 | Linder, Matheus Pauli | 0 | BRA | F | F | F | −42B | −19N | =44B | −41N | −36B | =40B | 1.0 | 15.0 | 15.0 | 1.50 | 807 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Maset, Lis Yumi YoshidaBRA+68.84.0 pts · #14
- 2Jurado, Laura AlvesBRA+66.85.0 pts · #17
- 3Lima, Vinicius TaishunBRA+52.06.5 pts · #4
Top rating losers
- 1Leite, Gina Dourado RochaBRA-90.41.0 pts · #45
- 2Takahara, FabioBRA-46.02.0 pts · #47
- 3Da Silva, Camila EvaristoBRA-40.83.5 pts · #33
Biggest upsets
- R2+362 Elo gap
- R3+309 Elo gap
- R1+297 Elo gap