Meaipe Chess Open STD
16 players participated in this 6-round tournament, held from 23 May 2026 to 24 May 2026 in Guarapari ES, Brazil. 1 titled players. Top 10 Elo average was 1873, and top seed was Moacir Canella Bortoloso (🇧🇷 BRA, CM, 2002).
Ezequiel Demetras Silva (🇧🇷 BRA, 1920) won with 5.0/6, ahead of Rogerio Zanon da Silveira (4.5) and Moacir Canella Bortoloso (4.5). Silva won solo starting round 3.
The biggest upset came in round 5: Rahysa Leal Heck (1650) beat Daniel Rojas Nascimento (1937), a +287-point gap.
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How it unfolded
Top 6 · 6 roundsEzequiel Demetras Silva led from R3; +0.5-point edge over the runner-up.
Ezequiel Demetras Silva held the sole lead from R3 through R6 without losing it.
Ezequiel Demetras Silva 3 wins (R1–R3)CM Moacir Canella Bortoloso 3 wins (R4–R6)Rogerio Zanon da Silveira 4 wins (R2–R5)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Ezequiel Demetras Silva | * | — | ½ | — |
| 2CMMoacir Canella Bortoloso | — | * | — | 0 |
| 3Rogerio Zanon da Silveira | ½ | — | * | — |
| 4FIDE 44765827 | — | 1 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Silva, Ezequiel Demetras | 1920 | BRA | +16B | +11N | +10B | =7N | +6B | =2N | 5.0 | 15.5 | 15.5 | 11.75 | 2092 | +17.8 |
| 2 | Silveira, Rogerio Zanon da | 1927 | BRA | −5N | +15B | +14N | +9B | +7N | =1B | 4.5 | 15.5 | 16.5 | 10.50 | 2198 | +23.4 |
| 3 | Bortoloso, Moacir CanellaCM | 2002 | BRA | +14N | −4B | =5N | +13B | +10B | +8N | 4.5 | 14.5 | 15.5 | 9.75 | 2577 | +18.6 |
| 4 | FIDE 44765827 | 0 | — | +13B | +3N | =7B | −6N | =5B | +11N | 4.0 | 16.5 | 18.0 | 11.25 | 1966 | 0.0 |
| 5 | Fabri, Pedro Henrique Nascimento | 0 | BRA | +2B | =13N | =3B | =10N | =4N | =6B | 3.5 | 19.0 | 20.5 | 12.50 | 1947 | 0.0 |
| 6 | Oliveira,Perseu Fernandes Machado de | 1946 | BRA | +8B | −7N | +11B | +4B | −1N | =5N | 3.5 | 18.5 | 20.5 | 10.75 | 1698 | -38.4 |
| 7 | Souza, Antonio Junior Da Silva | 1898 | BRA | +12N | +6B | =4N | =1B | −2B | −10N | 3.0 | 19.5 | 21.5 | 10.00 | 1817 | -18.4 |
| 8 | Heck, Rahysa Leal | 1650 | BRA | −6N | +12B | −9N | +14B | +13N | −3B | 3.0 | 14.5 | 15.5 | 4.50 | 1831 | +39.6 |
| 9 | Bonfim, Hudson Soares do | 1932 | BRA | +15B | −10N | +8B | −2N | −11B | +14N | 3.0 | 13.0 | 14.0 | 5.00 | 1774 | -15.8 |
| 10 | Goncalves,Luiz Osvaldo Cifuentes | 1823 | BRA | F | +9B | −1N | =5B | −3N | +7B | 2.5 | 19.0 | 19.0 | 7.75 | 1938 | +12.2 |
| 11 | FIDE 580004172 | 0 | — | F | −1B | −6N | +12B | +9N | −4B | 2.0 | 17.5 | 17.5 | 5.00 | 1808 | 0.0 |
| 12 | FIDE 580004164 | 0 | — | −7B | −8N | +16B | −11N | F | +15B | 2.0 | 9.0 | 9.0 | 1.00 | 974 | 0.0 |
| 13 | Nascimento, Daniel Rojas | 1937 | BRA | −4N | =5B | +15N | −3N | −8B | F | 1.5 | 16.0 | 16.0 | 2.75 | 1026 | -25.0 |
| 14 | De Castro, Demetrio Iabrudi | 1697 | BRA | −3B | +16N | −2B | −8N | −15N | −9B | 1.0 | 16.0 | 16.0 | 0.00 | 1078 | -45.2 |
| 15 | FIDE 538077400 | 0 | — | −9N | −2N | −13B | F | +14B | −12N | 1.0 | 12.0 | 12.0 | 1.00 | 1680 | 0.0 |
| 16 | FIDE 538049899 | 0 | — | −1N | −14B | −12N | F | F | F | 0.0 | 9.0 | 9.0 | 0.00 | 1009 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Heck, Rahysa LealBRA+39.63.0 pts · #6
- 2Silveira, Rogerio Zanon daBRA+23.44.5 pts · #2
- 3Bortoloso, Moacir CanellaCMBRA+18.64.5 pts · #1
- 1De Castro, Demetrio IabrudiBRA-45.21.0 pts · #13
- 2Oliveira,Perseu Fernandes Machado deBRA-38.43.5 pts · #10
- 3Nascimento, Daniel RojasBRA-25.01.5 pts · #16
- R5+287 Elo gap
- R2+109 Elo gap