CXA Festival STD 1800 Mais Cidade de Sao Paulo
14 players participated in this 6-round tournament, held from 29 May 2026 to 31 May 2026 in Sao Paulo SP, Brazil. 2 federations represented. Top 10 Elo average was 1973, and top seed was Caio Medeiros Poeta (🇧🇷 BRA, 2173).
Aiman Mohamed El Zwei (🇱🇾 LBA, 2010) won with 4.5/6, ahead of Caio Medeiros Poeta (4.0) and Tiago Carvalho Mangialardo (4.0). El Zwei shared the lead from round 4 and won solo starting round 5.
The biggest upset came in round 2: Davi Natali Mantelato (1954) beat Caio Medeiros Poeta (2173), a +219-point gap.
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How it unfolded
Top 6 · 6 roundsAiman Mohamed El Zwei led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.
Leonardo De Miranda Rodrigues takes the sole lead (2.5/3).
Aiman Mohamed El Zwei won 4 in a row (R1–R5).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Aiman Mohamed El Zwei | * | — | ½ | 1 |
| 2Jairo Quintiliano De Oliveira | — | * | — | — |
| 3Caio Medeiros Poeta | ½ | — | * | — |
| 4Tiago Carvalho Mangialardo | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | El Zwei, Aiman Mohamed | 2010 | LBA | +13B | F | +10N | +5B | +3N | =2B | 4.5 | 13.0 | 13.0 | 11.00 | 2360 | +38.4 |
| 2 | Poeta, Caio Medeiros | 2173 | BRA | +8B | −9N | =6B | +10N | +5B | =1N | 4.0 | 14.5 | 15.5 | 10.00 | 2075 | -12.6 |
| 3 | Mangialardo, Tiago Carvalho | 1985 | BRA | =7N | =12B | +11N | +8B | −1B | +9N | 4.0 | 12.0 | 13.0 | 6.75 | 2038 | +8.2 |
| 4 | De Oliveira, Jairo Quintiliano | 1957 | BRA | −10B | =13N | +14B | =6N | +11B | +8N | 4.0 | 7.0 | 7.5 | 5.00 | 1986 | +2.0 |
| 5 | Rodrigues, Leonardo De Miranda | 2129 | BRA | =12N | +7B | +9B | −1N | −2N | +6B | 3.5 | 15.5 | 16.5 | 7.50 | 2002 | -16.4 |
| 6 | Vieira, Alexandre Letizio | 1841 | BRA | F | =11B | =2N | =4B | +7N | −5N | 2.5 | 15.0 | 15.0 | 7.00 | 1996 | +20.4 |
| 7 | Ricieri, Vinicius de Andrade | 1844 | BRA | =3B | −5N | +13B | =11N | −6B | =14N | 2.5 | 11.5 | 12.0 | 3.25 | 1858 | +0.8 |
| 8 | Santana, Robson | 1942 | BRA | −2N | +14B | +12N | −3N | F | −4B | 2.0 | 14.0 | 14.5 | 1.50 | 1894 | -14.4 |
| 9 | Mantelato, Davi Natali | 1954 | BRA | +14N | +2B | −5N | F | F | −3B | 2.0 | 13.0 | 13.0 | 4.50 | 2031 | +15.6 |
| 10 | De Menezes, Ricardo Fagner Dias | 1841 | BRA | +4N | F | −1B | −2B | F | F | 1.0 | 14.5 | 14.5 | 4.00 | 1926 | +5.6 |
| 11 | Videira, Alan De Souza | 1866 | BRA | F | =6N | −3B | =7B | −4N | F | 1.0 | 13.0 | 13.0 | 2.50 | 1714 | -31.6 |
| 12 | Da Silva, Matheus Oliveira | 1862 | BRA | =5B | =3N | −8B | F | F | F | 1.0 | 11.5 | 11.5 | 3.75 | 1892 | +4.0 |
| 13 | De Paula, Bruno Cesar Lima | 1849 | BRA | −1N | =4B | −7N | F | F | F | 0.5 | 11.0 | 11.0 | 2.00 | 1669 | -12.6 |
| 14 | Iamamoto, Christian Eiji | 1841 | BRA | −9B | −8N | −4N | F | F | =7B | 0.5 | 10.5 | 10.5 | 1.25 | 1606 | -41.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1El Zwei, Aiman MohamedLBA+38.44.5 pts · #1
- 2Vieira, Alexandre LetizioBRA+20.42.5 pts · #7
- 3Mantelato, Davi NataliBRA+15.62.0 pts · #9
- 1Iamamoto, Christian EijiBRA-41.20.5 pts · #14
- 2Videira, Alan De SouzaBRA-31.61.0 pts · #12
- 3Rodrigues, Leonardo De MirandaBRA-16.43.5 pts · #5
- R2+219 Elo gap
- R4+119 Elo gap
- R1+116 Elo gap