Filhos de RO Chess Open Fide STD
Open SwissStandard
50 players participated in this 6-round tournament, held from 24 Oct 2025 to 26 Oct 2025 in Porto Velho RO, Brazil. 2 federations represented. Top 10 Elo average was 1902, and top seed was Gabriel Carckeno Do Carmo (🇧🇷 BRA, 2045).
Vinicius R. Rodrigues Da Silva (🇧🇷 BRA, 1959) won with 5.0/6, ahead of Everson De Moura Araujo (4.5) and Robson da Costa Farias (4.5). Da Silva clinched sole first place in the final round.
The biggest upset came in round 2: Robson Bezerra Amorim Filho (1652) beat Alex Aecio De Sousa (1862), a +210-point gap.
Location
🇧🇷Porto Velho RO, Brazil
Dates
24 Oct 2025 → 26 Oct 2025
Time control
Standard: 60 minutes with 30 seconds increment from move 1
System
Swiss · 6 rounds
Federations · 2 represented
🇧🇷Brazil×35
FIDE (no federation)×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsVinicius R. Rodrigues Da Silva led from R6; +0.5-point edge over the runner-up.
Co-leaders
21
9
2
1
1
1
R6 · LEADER CHANGE26 Oct
Vinicius R. Rodrigues Da Silva takes the sole lead (5.0/6).
R1–R4 · WIN STREAK
Mateus Nascimento De Souza won 4 in a row (R1–R4).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Vinicius R. Rodrigues Da Silva | * | — | 1 | ½ |
| 2Everson De Moura Araujo | — | * | — | — |
| 3Mateus Nascimento De Souza | 0 | — | * | — |
| 4Robson da Costa Farias | ½ | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Da Silva, Vinicius R. Rodrigues | 1959 | BRA | +42N | =17B | +23N | +25B | =3N | +5B | 5.0 | 18.5 | 19.5 | 15.50 | 1999 | +6.4 |
| 2 | Araujo, Everson De Moura | 1966 | BRA | +32B | +12N | =6B | =9N | +11B | =7N | 4.5 | 21.5 | 23.5 | 16.75 | 1883 | -8.0 |
| 3 | Farias, Robson da Costa | 1840 | BRA | +33B | +27N | =9B | +8N | =1B | =10N | 4.5 | 21.0 | 23.0 | 16.25 | 1956 | +17.4 |
| 4 | Da Silva De Sena, Jefferson Ryan F | 1906 | BRA | +39B | +11N | +16B | −5N | +15B | =9N | 4.5 | 20.0 | 21.5 | 14.75 | 1853 | -5.0 |
| 5 | De Souza, Mateus Nascimento | 1895 | BRA | +30B | +40N | +21B | +4B | =10N | −1N | 4.5 | 19.5 | 21.0 | 14.00 | 1956 | +19.2 |
| 6 | Dos Santos, Janio Silva | 1821 | BRA | +22N | +19B | =2N | −10B | +39N | +14B | 4.5 | 19.0 | 20.5 | 14.25 | 1857 | +4.6 |
| 7 | De Sousa, Alex Aecio | 1862 | BRA | +36N | −14B | +17N | +24B | +12N | =2B | 4.5 | 18.5 | 20.5 | 14.75 | 1850 | 0.0 |
| 8 | Do Carmo, Gabriel Carckeno | 2045 | BRA | =29N | +45B | +14N | −3B | +21N | +18B | 4.5 | 17.5 | 18.0 | 12.25 | 1918 | -9.0 |
| 9 | Dos Santos, Edson Gomes | 1686 | BRA | +43B | +46N | =3N | =2B | +25N | =4B | 4.5 | 17.5 | 17.5 | 10.75 | 1981 | +60.8 |
| 10 | Do Nascimento,Ismael Carlos Amorim | 1891 | BRA | F | +26N | +20B | +6N | =5B | =3B | 4.0 | 20.0 | 20.0 | 15.50 | 2015 | +25.2 |
| 11 | De Araujo, Antonio Marcos Diniz | 1637 | BRA | +37N | −4B | +30N | +34B | −2N | +23B | 4.0 | 16.5 | 18.5 | 9.50 | 1707 | +5.0 |
| 12 | Harada, Ayrton Katsunori | 1653 | BRA | +41N | −2B | +46B | +40N | −7B | +27N | 4.0 | 15.0 | 15.0 | 6.00 | 1709 | +9.2 |
| 13 | FIDE 538069199 | 0 | — | −14N | +42B | −15B | +33N | +?B | +34N | 4.0 | 12.0 | 12.0 | 5.00 | 1579 | 0.0 |
| 14 | Amorim Filho, Robson Bezerra | 1652 | BRA | +13B | +7N | −8B | +26N | =16B | −6N | 3.5 | 21.0 | 24.0 | 13.25 | 1796 | +12.2 |
| 15 | Dourado, Celio Valdemar Marques | 0 | BRA | +?N | −16B | +13N | +17B | −4N | =19B | 3.5 | 19.0 | 19.0 | 9.25 | 1643 | 0.0 |
| 16 | Fiori,Luis Eduardo | 1804 | BRA | +31B | +15N | −4N | +19B | =14N | −20B | 3.5 | 18.5 | 21.0 | 11.25 | 1620 | -19.6 |
| 17 | Maciel Junior, Joao Edson Costa | 1671 | BRA | +28B | =1N | −7B | −15N | +30B | +39N | 3.5 | 18.5 | 20.0 | 9.50 | 1718 | +3.6 |
| 18 | Silva, Joao Vitor Maximiano | 1681 | BRA | +47N | =23B | −25N | +22B | +24N | −8N | 3.5 | 17.0 | 17.0 | 8.00 | 1636 | -14.0 |
| 19 | Oliveira, Emanuel Vitor Freitas | 1538 | BRA | +50B | −6N | +31B | −16N | +28B | =15N | 3.5 | 17.0 | 17.0 | 7.25 | 1013 | -13.6 |
| 20 | Dos Santos, Paulo H. Maximo | 1730 | BRA | F | +29B | −10N | =23B | +32N | +16N | 3.5 | 15.0 | 15.0 | 9.50 | 1715 | -0.6 |
| 21 | Barbosa, Thiago Rodrigo | 1725 | FID | +38N | +34B | −5N | =39B | −8B | +40N | 3.5 | 14.5 | 16.0 | 6.25 | 1750 | +3.6 |
| 22 | Cardoso, Kamilla Helmann | 0 | BRA | −6B | +49N | =27B | −18N | +33B | +?N | 3.5 | 13.0 | 13.0 | 3.50 | 1542 | 0.0 |
| 23 | Noia, Vitor Odilei Silva | 1451 | BRA | +35B | =18N | −1B | =20N | +26B | −11N | 3.0 | 19.0 | 21.0 | 8.50 | 1534 | +12.0 |
| 24 | Miranda, Calebe Emanuel Da Silva | 1564 | BRA | −26B | +28N | +33B | −7N | −18B | +35N | 3.0 | 16.0 | 18.0 | 7.00 | 972 | -19.6 |
| 25 | Rocha, Walterio Carlos Araujo | 1831 | BRA | F | +44N | +18B | −1N | −9B | +29B | 3.0 | 16.0 | 16.0 | 6.50 | 1711 | -11.6 |
| 26 | De Carvalho, Eduardo Vinicius L | 0 | BRA | +24N | −10B | +32N | −14B | −23N | +36B | 3.0 | 15.5 | 17.5 | 7.00 | 1447 | 0.0 |
| 27 | Bandeira, Maria Isabella Santos | 1453 | BRA | +48N | −3B | =22N | =29B | +42N | −12B | 3.0 | 15.5 | 15.5 | 4.00 | 947 | -13.2 |
| 28 | FIDE 538069270 | 0 | — | −17N | −24B | +48N | +46B | −19N | +42B | 3.0 | 11.0 | 11.0 | 1.00 | 791 | 0.0 |
| 29 | Medeiros, Murilo Passoni | 0 | BRA | =8B | −20N | +44B | =27N | =40B | −25N | 2.5 | 15.5 | 16.0 | 5.00 | 1632 | 0.0 |
| 30 | FIDE 538005743 | 0 | — | −5N | +37B | −11B | =41N | −17N | +?B | 2.5 | 15.5 | 15.5 | 2.75 | 938 | 0.0 |
| 31 | Trombaco, Daniel Adami | 0 | BRA | −16N | +48B | −19N | −32B | +37B | =?N | 2.5 | 11.0 | 11.0 | 2.00 | 871 | 0.0 |
| 32 | Santana, Luiz Renato Cortez | 0 | BRA | −2N | F | −26B | +31N | −20B | +38B | 2.0 | 15.5 | 15.5 | 4.50 | 1048 | 0.0 |
| 33 | FIDE 538005735 | 0 | — | −3N | +?B | −24N | −13B | −22N | +47B | 2.0 | 15.0 | 15.0 | 0.00 | 902 | 0.0 |
| 34 | Ferreira, Mateus Henrique de Lima | 1506 | BRA | +49B | −21N | +43B | −11N | F | −13B | 2.0 | 14.5 | 14.5 | 1.00 | 886 | -21.2 |
| 35 | FIDE 538069210 | 0 | — | −23N | +38B | −39N | +36B | F | −24B | 2.0 | 12.0 | 13.5 | 4.00 | 708 | 0.0 |
| 36 | FIDE 538005751 | 0 | — | −7B | +50N | −40B | −35N | +43B | −26N | 2.0 | 12.0 | 12.0 | 1.00 | 908 | 0.0 |
| 37 | FIDE 538069261 | 0 | — | −11B | −30N | +47B | F | −31N | +41N | 2.0 | 10.5 | 10.5 | 1.50 | 846 | 0.0 |
| 38 | FIDE 538005697 | 0 | — | −21B | −35N | +49B | −?N | +?B | −32N | 2.0 | 7.5 | 7.5 | 0.00 | 925 | 0.0 |
| 39 | Barros, Nicolas Augusto Laborda | 0 | BRA | −4N | F | +35B | =21N | −6B | −17B | 1.5 | 18.0 | 19.5 | 3.75 | 1459 | 0.0 |
| 40 | Moura, Nilson Do Nascimento | 1554 | BRA | F | −5B | +36N | −12B | =29N | −21B | 1.5 | 16.5 | 16.5 | 3.25 | 958 | -30.0 |
| 41 | FIDE 538069180 | 0 | — | −12B | F | +?N | =30B | −?N | −37B | 1.5 | 10.0 | 10.0 | 1.25 | 807 | 0.0 |
| 42 | Noiman, Simone Pereira De Andrade | 0 | BRA | −1B | −13N | F | +43N | −27B | −28N | 1.0 | 16.0 | 16.0 | 1.00 | 906 | 0.0 |
| 43 | Oliveira, Ana Clara Vairan | 0 | BRA | −9N | +?B | −34N | −42B | −36N | F | 1.0 | 9.5 | 9.5 | 0.00 | 796 | 0.0 |
| 44 | De Souza, Luna Thais Carmo | 1518 | BRA | =45N | −25B | −29N | F | F | F | 0.5 | 6.0 | 6.0 | 0.25 | 1031 | -5.6 |
| 45 | FIDE 538069288 | 0 | — | =44B | −8N | F | F | F | F | 0.5 | 5.0 | 5.0 | 0.25 | 1589 | 0.0 |
| 46 | FIDE 44779488 | 0 | — | F | −9B | −12N | −28N | F | F | 0.0 | 11.5 | 11.5 | 0.00 | 870 | 0.0 |
| 47 | Cardoso, Adalzisa Noemia Helmann | 0 | BRA | −18B | F | −37N | −?B | F | −33N | 0.0 | 10.0 | 10.0 | 0.00 | 821 | 0.0 |
| 48 | FIDE 538069296 | 0 | — | −27B | −31N | −28B | F | F | F | 0.0 | 8.5 | 8.5 | 0.00 | 653 | 0.0 |
| 49 | FIDE 538069237 | 0 | — | −34N | −22B | −38N | F | F | F | 0.0 | 7.5 | 7.5 | 0.00 | 706 | 0.0 |
| 50 | FIDE 538069202 | 0 | — | −19N | −36B | F | F | F | F | 0.0 | 6.5 | 6.5 | 0.00 | 738 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Dos Santos, Edson GomesBRA+60.84.5 pts · #9
- 2Do Nascimento,Ismael Carlos AmorimBRA+25.24.0 pts · #7
- 3De Souza, Mateus NascimentoBRA+19.24.5 pts · #3
Top rating losers
- 1Moura, Nilson Do NascimentoBRA-30.01.5 pts · #44
- 2Ferreira, Mateus Henrique de LimaBRA-21.22.0 pts · #48
- 3Fiori,Luis EduardoBRA-19.63.5 pts · #19
Biggest upsets
- R2+210 Elo gap
- R4+205 Elo gap
- R5+145 Elo gap