Campeonato Marabaense Std 2025
15 players participated in this 5-round tournament, held from 13 Dec 2025 to 14 Dec 2025 in Maraba PA, Brazil. Top 10 Elo average was 1247, and top seed was Edilson Rufino De Oliveira (🇧🇷 BRA, 1965).
Edilson Rufino De Oliveira (🇧🇷 BRA, 1965) won with 5.0/5, ahead of Zidane Nobrega Carrias (4.0) and Lucas Aires Santos (3.5). De Oliveira won solo starting round 4.
The biggest upset came in round 5: Zidane Nobrega Carrias (1788) beat Jadson Alves De Sousa (1912), a +124-point gap.
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How it unfolded
Top 6 · 5 roundsEdilson Rufino De Oliveira led from R4; +1.0-point edge over the runner-up.
Edilson Rufino De Oliveira never relinquished the lead after R4; final gap +1.0 over the runner-up.
Edilson Rufino De Oliveira beat Zidane Nobrega Carrias (White).
Edilson Rufino De Oliveira won 5 in a row (R1–R5).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Edilson Rufino De Oliveira | * | 1 | — | 1 |
| 2Zidane Nobrega Carrias | 0 | * | — | — |
| 3Pollyclessio Mota Sa | — | — | * | ½ |
| 4Lucas Aires Santos | 0 | — | ½ | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | De Oliveira, Edilson Rufino | 1965 | BRA | +9B | +3N | +2B | +5N | +6B | 5.0 | 12.5 | 13.5 | 13.50 | 2516 | +17.6 |
| 2 | Carrias, Zidane Nobrega | 1788 | BRA | +14N | +6B | −1N | +9B | +5B | 4.0 | 11.0 | 11.0 | 6.00 | 1932 | +24.0 |
| 3 | Santos, Lucas Aires | 1600 | BRA | +13N | −1B | +10N | =4B | +9N | 3.5 | 10.5 | 11.5 | 4.75 | 1651 | +2.8 |
| 4 | Sa, Pollyclessio Mota | 1722 | BRA | +10B | −8N | +7B | =3N | +11B | 3.5 | 8.5 | 9.5 | 5.75 | 1575 | -16.0 |
| 5 | De Sousa, Jadson Alves | 1912 | BRA | +7B | +12N | +8B | −1B | −2N | 3.0 | 13.0 | 14.0 | 5.00 | 1771 | -11.4 |
| 6 | Medrado, Vitor Fael Barros | 1544 | BRA | +11B | −2N | +12B | F | −1N | 2.0 | 12.0 | 13.0 | 2.00 | 1066 | -11.2 |
| 7 | FIDE 538044579 | 0 | — | −5N | +13B | −4N | +10B | −12N | 2.0 | 8.5 | 9.5 | 2.00 | 1017 | 0.0 |
| 8 | De Sena, Antonio W. Oliveira | 1935 | BRA | +15N | +4B | −5N | F | F | 2.0 | 8.5 | 8.5 | 3.50 | 1817 | -12.0 |
| 9 | Da Silva, Silvano Vieira | 0 | BRA | −1N | +14B | F | −2N | −3B | 1.0 | 13.5 | 13.5 | 0.00 | 984 | 0.0 |
| 10 | FIDE 538044587 | 0 | — | −4N | +15B | −3B | −7N | F | 1.0 | 9.0 | 9.0 | 0.00 | 861 | 0.0 |
| 11 | FIDE 538079682 | 0 | — | −6N | F | F | +13B | −4N | 1.0 | 7.5 | 7.5 | 1.00 | 833 | 0.0 |
| 12 | FIDE 538079690 | 0 | — | F | −5B | −6N | F | +7B | 1.0 | 7.0 | 7.0 | 2.00 | 928 | 0.0 |
| 13 | FIDE 538015528 | 0 | — | −3B | −7N | F | −11N | +14B | 1.0 | 6.5 | 6.5 | 0.00 | 800 | 0.0 |
| 14 | FIDE 538015960 | 0 | — | −2B | −9N | F | F | −13N | 0.0 | 6.0 | 6.0 | 0.00 | 988 | 0.0 |
| 15 | De Almeida, Lucas Araujo | 0 | BRA | −8B | −10N | F | F | F | 0.0 | 4.0 | 4.0 | 0.00 | 1135 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Carrias, Zidane NobregaBRA+24.04.0 pts · #2
- 2De Oliveira, Edilson RufinoBRA+17.65.0 pts · #1
- 3Santos, Lucas AiresBRA+2.83.5 pts · #6
- 1Sa, Pollyclessio MotaBRA-16.03.5 pts · #5
- 2De Sena, Antonio W. OliveiraBRA-12.02.0 pts · #4
- 3De Sousa, Jadson AlvesBRA-11.43.0 pts · #3
- R5+124 Elo gap