XIV Pan-American School Chess Championship 2025 STD U17 Open
23 players participated in this 9-round tournament, held from 30 Aug 2025 to 05 Sept 2025 in Florianopolis SC, Brazil. 4 titled players from 7 federations. Top 10 Elo average was 1997, and top seed was Vitor Augusto Ponciano De Carvalho (🇧🇷 BRA, CM, 2179).
Tony Lu (🇨🇦 CAN, FM, 1973) won with 7.5/9, ahead of Ezequiel Amarilla Ettiene (6.5) and Vitor Augusto Ponciano De Carvalho (6.5). Lu broke clear in the final round.
The biggest upset came in round 1: Facundo Javier Navarro Canete (1840) beat Nicolas Gabriel Rojas Linares (CM, 2132), a +292-point gap.
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How it unfolded
Top 6 · 9 roundsFM Tony Lu led from R9; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R9.
FM Tony Lu never relinquished the lead after R9; final gap +1.0 over the runner-up.
FM Tony Lu beat CM Nicolas Gabriel Rojas Linares (White).
FM Tony Lu 4 wins (R1–R4)CM Ezequiel Amarilla Ettiene 4 wins (R1–R4)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1FMTony Lu | * | 1 | ½ | ½ |
| 2CMNicolas Gabriel Rojas Linares | 0 | * | ½ | — |
| 3CMEzequiel Amarilla Ettiene | ½ | ½ | * | 0 |
| 4CMVitor Augusto Ponciano De Carvalho | ½ | — | 1 | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | R7 | R8 | R9 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Lu, TonyFM | 1973 | CAN | +16B | +10N | +5B | +4B | =2N | =8N | =3B | +9B | +12N | 7.5 | 45.0 | 48.5 | 39.50 | 2226 | +110.8 |
| 2 | Amarilla Ettiene, EzequielCM | 1969 | PAR | +19N | +8B | +14N | +9B | =1B | =5N | =4N | +7B | −3N | 6.5 | 46.0 | 48.5 | 32.00 | 2139 | +69.0 |
| 3 | De Carvalho, Vitor Augusto PoncianoCM | 2179 | BRA | +6B | −5N | =15B | +13N | +14B | +10N | =1N | =8B | +2B | 6.5 | 44.0 | 47.5 | 33.50 | 2071 | -37.6 |
| 4 | Rojas Linares, Nicolas GabrielCM | 2132 | PER | −12N | +17B | +18B | −1N | +15B | +6N | =2B | +5N | +10B | 6.5 | 41.5 | 44.5 | 29.25 | 2016 | -37.6 |
| 5 | Valle Alonso, Moises Abraham | 1930 | NCA | +22B | +3B | −1N | +6N | +10B | =2B | +8N | −4B | =9N | 6.0 | 47.5 | 49.0 | 29.25 | 2076 | +71.2 |
| 6 | Batista, Leonardo Antonio | 1854 | BRA | −3N | +21B | +11N | −5B | +12N | −4B | =9N | +13B | +8N | 5.5 | 43.0 | 45.5 | 24.00 | 1984 | +62.4 |
| 7 | Hessmann, Eduardo Franzoni | 1931 | BRA | +21N | +12B | −9N | −8B | =19N | +20B | +13N | −2N | +14B | 5.5 | 34.5 | 37.0 | 19.25 | 1914 | 0.0 |
| 8 | Lazzarotti, Calebe Kadlubiski | 1899 | BRA | +11B | −2N | +16B | +7N | +9N | =1B | −5B | =3N | −6B | 5.0 | 47.5 | 51.0 | 26.00 | 1949 | +25.2 |
| 9 | Pironti, Francisco Ferrari | 2086 | BRA | +15B | +13N | +7B | −2N | −8B | +22N | =6B | −1N | =5B | 5.0 | 44.0 | 45.5 | 20.75 | 1921 | -71.6 |
| 10 | Justiniano Flores, Luis Fernando | 1866 | BOL | +23N | −1B | +22N | +14B | −5N | −3B | +17B | +19N | −4N | 5.0 | 37.5 | 37.5 | 11.00 | 1886 | +7.6 |
| 11 | Bernardo, Brayan | 1554 | BRA | −8N | +19B | −6B | =18N | −13B | +23N | +15B | =14N | +20N | 5.0 | 30.5 | 30.5 | 12.00 | 1786 | +86.0 |
| 12 | Navarro Canete, Facundo Javier | 1840 | PAR | +4B | −7N | =13B | =15N | −6B | =14N | +22B | +17N | −1B | 4.5 | 40.0 | 41.5 | 17.00 | 1863 | +11.6 |
| 13 | De Souza, Joao Francisco Biz | 1910 | BRA | +20N | −9B | =12N | −3B | +11N | +19B | −7B | −6N | +21N | 4.5 | 37.0 | 39.5 | 14.75 | 1809 | -41.2 |
| 14 | Llanto Llacsa, Yaden Wilden | 1961 | PER | +17B | +18N | −2B | −10N | −3N | =12B | +16N | =11B | −7N | 4.0 | 39.5 | 42.5 | 14.25 | 1775 | -80.0 |
| 15 | Lessa, Francisco Adilio | 1748 | BRA | −9N | +20B | =3N | =12B | −4N | =18B | −11N | F | +19B | 3.5 | 35.5 | 35.5 | 12.00 | 1792 | +5.6 |
| 16 | Spinola, Guilherme Grava | 1672 | BRA | −1N | +23B | −8N | −17B | =21N | F | −14B | +18N | +22B | 3.5 | 26.5 | 26.5 | 5.75 | 1667 | -9.2 |
| 17 | Puma Puchoc, Alejandro Apolinar | 1650 | PER | −14N | −4N | −20B | +16N | +23B | +21B | −10N | −12B | F | 3.0 | 28.5 | 28.5 | 6.00 | 1638 | -14.4 |
| 18 | Da Silva, Eike Teodoro | 1688 | BRA | F | −14B | −4N | =11B | =22N | =15N | =20B | −16B | +23N | 3.0 | 26.5 | 26.5 | 6.25 | 1584 | -46.4 |
| 19 | Castaneda Huamani, Frank Eder | 1661 | PER | −2B | −11N | +21B | +20N | =7B | −13N | F | −10B | −15N | 2.5 | 35.0 | 35.0 | 7.75 | 1629 | -18.8 |
| 20 | Dos Santos,Felipe Gabriel | 1567 | BRA | −13B | −15N | +17N | −19B | F | −7N | =18N | +23B | −11B | 2.5 | 27.0 | 27.0 | 4.50 | 1506 | -22.8 |
| 21 | Simm, Alessandro Thierry | 1610 | BRA | −7B | −6N | −19N | F | =16B | −17N | +23B | +22N | −13B | 2.5 | 26.0 | 26.0 | 3.25 | 1525 | -31.2 |
| 22 | Ribas, Bernardo Sanson | 1598 | BRA | −5N | F | −10B | +23N | =18B | −9B | −12N | −21B | −16N | 1.5 | 29.5 | 29.5 | 1.50 | 1379 | -53.2 |
| 23 | Almonte Rosario, Lucas Alejandro | 0 | DOM | −10B | −16N | F | −22B | −17N | −11B | −21N | −20N | −18B | 0.0 | 26.0 | 26.0 | 0.00 | 850 | -81.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
- 1Lu, TonyFMCAN+110.87.5 pts · #1
- 2Bernardo, BrayanBRA+86.05.0 pts · #12
- 3Valle Alonso, Moises AbrahamNCA+71.26.0 pts · #5
- 1Almonte Rosario, Lucas AlejandroDOM-81.20.0 pts · #23
- 2Llanto Llacsa, Yaden WildenPER-80.04.0 pts · #14
- 3Pironti, Francisco FerrariBRA-71.65.0 pts · #8
- R1+292 Elo gap
- R2+249 Elo gap
- R7+194 Elo gap