CN Amador 2024-25 - U2000
Open SwissStandard
43 players participated in this 6-round tournament, held from 03 Sept 2025 to 06 Sept 2025 in Matosinhos, Portugal. 3 federations represented. Top 10 Elo average was 1900, and top seed was Francisco Daniel Assuncao (🇵🇹 POR, 1950).
Diogo Faria Oliveira Martins (🇵🇹 POR, 1947) won with 5.5/6, ahead of Pedro Miguel Ramos Fonseca (5.0) and Sergey Demyanchuk (4.5). Martins won solo starting round 4.
The biggest upset came in round 5: Diogo Borges (1590) beat Jose Carlos Prezado (1798), a +208-point gap.
Location
🇵🇹Matosinhos, Portugal
Dates
03 Sept 2025 → 06 Sept 2025
Time control
Standard: 90 minutes with 30 second increment from move 1
System
Swiss · 6 rounds
Federations · 3 represented
🇵🇹Portugal×41
🇧🇷Brazil×1
🇧🇪Belgium×1
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 6 roundsDiogo Faria Oliveira Martins led from R4; +0.5-point edge over the runner-up.
Co-leaders
16
7
2
1
1
1
R4–R6 · LEAD HELD
Diogo Faria Oliveira Martins held the sole lead from R4 through R6 without losing it.
WIN STREAKS · 2 top finishers
Diogo Faria Oliveira Martins 5 wins (R1–R5)Pedro Miguel Ramos Fonseca 5 wins (R2–R6)
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Diogo Faria Oliveira Martins | * | — | ½ | 1 |
| 2Pedro Miguel Ramos Fonseca | — | * | — | — |
| 3Sergey Demyanchuk | ½ | — | * | — |
| 4Francisco Daniel Assuncao | 0 | — | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | R4 | R5 | R6 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Martins, Diogo Faria Oliveira | 1947 | POR | +31N | +21B | +9N | +16B | +4N | =3B | 5.5 | 18.0 | 20.0 | 17.75 | 2264 | +36.6 |
| 2 | Fonseca, Pedro Miguel Ramos | 1824 | POR | −10N | +36B | +24N | +31B | +16N | +5N | 5.0 | 15.0 | 16.0 | 12.50 | 2023 | +28.0 |
| 3 | Demyanchuk, Sergey | 1901 | POR | =17N | +38B | +30N | =7B | +9N | =1N | 4.5 | 18.0 | 18.5 | 12.25 | 2015 | +17.6 |
| 4 | Assuncao, Francisco Daniel | 1950 | POR | +20B | =8N | +23B | +11N | −1B | =6N | 4.0 | 20.0 | 22.5 | 13.00 | 1966 | +2.4 |
| 5 | Freitas, Daniel Leonardo M | 1877 | POR | +24N | +26B | =7N | =13B | +10N | −2B | 4.0 | 18.5 | 21.0 | 12.25 | 1909 | +10.8 |
| 6 | Matos, Joao Guilherme | 1796 | POR | =29N | +17B | =18N | =12B | +21N | =4B | 4.0 | 16.5 | 18.5 | 12.25 | 1932 | +22.0 |
| 7 | Sa, Claudio Simao Carvalho Faria | 1848 | POR | +43B | +33N | =5B | =3N | −11B | +29N | 4.0 | 15.5 | 15.5 | 7.75 | 1871 | +5.2 |
| 8 | Tenreiro, Manuel | 1848 | POR | +28N | =4B | F | =29N | +17B | +12B | 4.0 | 15.0 | 15.0 | 12.00 | 1996 | +37.2 |
| 9 | Sa, Nuno Baltasar Fogaca Barros | 1849 | POR | +36N | +10B | −1B | +19N | −3B | =14N | 3.5 | 20.0 | 21.0 | 9.25 | 1820 | -3.6 |
| 10 | Nunes, Miguel Camisa | 1631 | POR | +2B | −9N | +20B | +23N | −5B | =32N | 3.5 | 18.0 | 20.0 | 11.50 | 1890 | +82.4 |
| 11 | Silva, Firmino | 1883 | POR | =38N | +29B | +22N | −4B | +7N | −13B | 3.5 | 16.5 | 17.0 | 9.25 | 1860 | -1.8 |
| 12 | Silva, Reinaldo | 1875 | POR | =39B | =25N | +14B | =6N | +32B | −8N | 3.5 | 16.0 | 16.5 | 9.00 | 1820 | -7.8 |
| 13 | Sousa, Pedro Simao | 1923 | POR | −19B | F | +27N | =5N | +25B | +11N | 3.5 | 15.5 | 16.0 | 10.50 | 1923 | +0.6 |
| 14 | Marcos, Joao Daniel | 1699 | POR | −18N | +41B | −12N | +34B | +30N | =9B | 3.5 | 13.5 | 13.5 | 5.25 | 1837 | +44.8 |
| 15 | Valente, Benjamim Viegas | 1694 | POR | −16N | −34B | =36N | +24B | +33B | +23N | 3.5 | 11.0 | 12.0 | 7.00 | 1750 | +11.2 |
| 16 | Dumont, Andre | 1881 | BEL | +15B | +35N | +19B | −1N | −2B | F | 3.0 | 18.5 | 18.5 | 8.00 | 1874 | -0.8 |
| 17 | Almeida, Tomas CCM | 1712 | POR | =3B | −6N | +34N | =18B | −8N | +27B | 3.0 | 18.0 | 19.5 | 7.75 | 1781 | +22.4 |
| 18 | Pinho, Tiago Brandao De | 1886 | POR | +14B | −23N | =6B | =17N | =19B | =20N | 3.0 | 16.5 | 19.0 | 10.00 | 1752 | -21.2 |
| 19 | Alvim, Joao | 1735 | POR | +13N | +32B | −16N | −9B | =18N | =22B | 3.0 | 16.0 | 18.0 | 8.50 | 1871 | +22.0 |
| 20 | Ramos, Iam Da Silva | 1767 | BRA | −4N | +28B | −10N | +40B | =27N | =18B | 3.0 | 15.5 | 15.5 | 5.25 | 1739 | -9.6 |
| 21 | Morais, Vitor | 1835 | POR | +42B | −1N | =25B | +33N | −6B | =31N | 3.0 | 15.5 | 15.5 | 3.75 | 1731 | -15.8 |
| 22 | Areal, Maria Beatriz Moura | 1812 | POR | +37B | =30N | −11B | −32N | +36B | =19N | 3.0 | 11.5 | 12.5 | 4.50 | 1778 | -10.0 |
| 23 | Silva, Gabriel F M B | 1802 | POR | +41N | +18B | −4N | −10B | =31N | −15B | 2.5 | 16.0 | 16.0 | 4.00 | 1705 | -32.8 |
| 24 | Kolyvanov, Klim | 1679 | POR | −5B | +37N | −2B | −15N | +41B | =36N | 2.5 | 14.5 | 14.5 | 1.50 | 1667 | -2.8 |
| 25 | Pinheiro, Rui | 1686 | POR | =32N | =12B | =21N | +30B | −13N | F | 2.5 | 14.0 | 14.0 | 6.25 | 1878 | +25.0 |
| 26 | Prezado, Jose Carlos | 1798 | POR | +40B | −5N | =33B | =35N | −29B | =28N | 2.5 | 11.5 | 11.5 | 2.75 | 1624 | -28.0 |
| 27 | Sousa, Guilherme Resende Miranda | 1687 | POR | −30B | +42N | −13B | +41N | =20B | −17N | 2.5 | 11.5 | 11.5 | 1.50 | 1700 | +1.6 |
| 28 | Fernandes, Rodrigo | 1659 | POR | −8B | −20N | F | +42B | +40N | =26B | 2.5 | 9.5 | 9.5 | 1.25 | 1733 | +10.2 |
| 29 | Borges, Diogo | 1590 | POR | =6B | −11N | F | =8B | +26N | −7B | 2.0 | 18.0 | 18.0 | 6.50 | 1762 | +41.2 |
| 30 | Guerra, Jose Antonio Goulart De | 1878 | POR | +27N | =22B | −3B | −25N | −14B | =37N | 2.0 | 16.0 | 17.0 | 4.50 | 1610 | -42.0 |
| 31 | Quintela, Gustavo | 1761 | POR | −1B | F | +40N | −2N | =23B | =21B | 2.0 | 16.0 | 16.0 | 2.75 | 1734 | -8.0 |
| 32 | Godinho Marques, Pedro | 1878 | POR | =25B | −19N | F | +22B | −12N | =10B | 2.0 | 15.5 | 16.0 | 6.00 | 1675 | -26.8 |
| 33 | Oliveira, Filipe Mendonca F R | 1568 | POR | F | −7B | =26N | −21B | −15N | +40B | 1.5 | 13.0 | 13.0 | 1.25 | 1615 | +10.4 |
| 34 | Gil, Diogo | 1567 | POR | −35B | +15N | −17B | −14N | =37B | F | 1.5 | 12.5 | 12.5 | 4.00 | 1559 | -3.2 |
| 35 | Mendes, Rui Oscar | 1782 | POR | +34N | −16B | F | =26B | F | F | 1.5 | 7.0 | 7.0 | 2.75 | 1749 | -2.2 |
| 36 | Correia, Pedro Mourao Soares | 1667 | POR | −9B | −2N | =15B | F | −22N | =24B | 1.0 | 17.5 | 18.0 | 3.00 | 1536 | -15.4 |
| 37 | Andrade, Joao Miguel Machado De | 1628 | POR | −22N | −24B | F | F | =34N | =30B | 1.0 | 9.0 | 9.0 | 1.75 | 1540 | -18.4 |
| 38 | Lopes, Tome Igreja | 1696 | POR | =11B | −3N | F | F | F | F | 0.5 | 11.0 | 11.0 | 1.75 | 1699 | 0.0 |
| 39 | Vale, Pedro Afonso | 1669 | POR | =12N | F | F | F | F | F | 0.5 | 7.0 | 7.0 | 1.75 | 1875 | +10.4 |
| 40 | Beijoco, Bernardo | 1620 | POR | −26N | F | −31B | −20N | −28B | −33N | 0.0 | 11.5 | 11.5 | 0.00 | 909 | -76.4 |
| 41 | Magalhaes, Fabio | 1628 | POR | −23B | −14N | F | −27B | −24N | F | 0.0 | 11.0 | 11.0 | 0.00 | 917 | -60.8 |
| 42 | Ferreira, Joao Alvaro | 1635 | POR | −21N | −27B | F | −28N | F | F | 0.0 | 8.0 | 8.0 | 0.00 | 927 | -22.8 |
| 43 | Morgado, Jorge | 1666 | POR | −7N | F | F | F | F | F | 0.0 | 6.0 | 6.0 | 0.00 | 1048 | -5.2 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Nunes, Miguel CamisaPOR+82.43.5 pts · #9
- 2Marcos, Joao DanielPOR+44.83.5 pts · #11
- 3Borges, DiogoPOR+41.22.0 pts · #31
Top rating losers
- 1Beijoco, BernardoPOR-76.40.0 pts · #40
- 2Magalhaes, FabioPOR-60.80.0 pts · #42
- 3Guerra, Jose Antonio Goulart DePOR-42.02.0 pts · #29
Biggest upsets
- R5+208 Elo gap
- R1+193 Elo gap
- R4+192 Elo gap