Felix Ferreira, Joao
Current rating: 1564
Record: 25-22-1
| Grand Prix London 2019 (WAR sealed) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| A1sealed | 273 | Pineiro, Andres (1543) | Won 2-0 | +191547 |
| A2sealed | 153 | Sanders, Dominic (1845) | Lost 1-2 | -131534 |
| A3sealed | 140 | Fischer, Antoine (1527) | Won 2-0 | +181552 |
| A4sealed | 148 | Moorton, Charlie (1569) | Won 2-0 | +181570 |
| A5sealed | 98 | Applebaum, Adam (1582) | Lost 0-2 | -181552 |
| A6sealed | 86 | Di Napoli, Jacopo (1590) | Lost 0-2 | -171535 |
| A7sealed | 90 | Alden, Jens (1500) | Draw 1-1 | -11534 |
| C1sealed | 272 | Hannberg, Kasper (1502) | Won 2-0 | +181552 |
| C2sealed | 174 | Purvis, Marc (1587) | Won 2-0 | +181570 |
| C3sealed | 56 | Micallef, Ayrton (1716) | Lost 1-2 | -151555 |
| C4sealed | 77 | Saito, Tomoharu (1943) | Lost 0-2 | -111544 |
| C5sealed | 174 | CLARKE, SEAN (1498) | Won 2-1 | +171561 |
| C6sealed | 93 | Illanas Sanchez-Beato, Luis Miguel (1505) | Lost 0-2 | -191542 |
| C7sealed | 101 | Thiele, Fabian (1761) | Won 2-0 | +221564 |
| top | average opponent: 1619record: 7-6-1 | new rating: 1564 | ||
| Grand Prix Birmingham 2018 (std) (DOM standard) | starting rating: 1538 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 273 | Aaltonen, Janne (1384) | Won 2-1 | +161554 |
| 2standard | 156 | Macgregor, Neil (1526) | Lost 0-2 | -191535 |
| 3standard | 360 | Earl, Mike (1399) | Lost 0-2 | -201515 |
| 4standard | 416 | Daniels, Jake (1484) | Won 2-1 | +171532 |
| 5standard | 442 | Twist, Lukas (1615) | Lost 1-2 | -161516 |
| 6standard | 407 | Balcombe, Thomas (1428) | Won 2-0 | +161532 |
| 7standard | 328 | Hauser, Holt (1443) | Lost 0-2 | -201512 |
| 8standard | 294 | Fradejas, Diego (1403) | Won 2-1 | +161528 |
| top | average opponent: 1460record: 4-4 | new rating: 1528 | ||
| Grand Prix London 2018 (RIX limited) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 214 | Neukirchen, Daniel (1524) | Won 2-1 | +181517 |
| 2sealed | 222 | Eriksen, Laurent (1483) | Lost 1-2 | -191498 |
| 3sealed | 671 | Cheng, Theo (1722) | Lost 0-2 | -141484 |
| 4sealed | 767 | O'Brien, Shane (1487) | Won 2-1 | +191503 |
| 5sealed | 714 | Mavridis, Lazaros (1580) | Won 2-1 | +191522 |
| 6sealed | 314 | Cook, Matthew [ENG] (1425) | Won 2-0 | +161538 |
| 7sealed | 241 | Guillet, Damien (1607) | Won 2-0 | +191557 |
| 8sealed | 215 | Tatian, John (1501) | Lost 1-2 | -191538 |
| top | average opponent: 1541record: 5-3 | new rating: 1538 | ||
| Grand Prix London 2016 (KLD limited) | starting rating: 1520 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 23 | Corenstein, Fernando (1471) | Lost 0-2 | -191501 |
| 2sealed | 877 | Campbell, Sam (1486) | Won 2-0 | +181519 |
| 3sealed | 606 | Chatphaisit, Kantapit (1484) | Lost 1-2 | -191500 |
| 4sealed | 954 | Pihlajaniemi, Kai (1376) | Won 2-0 | +161516 |
| 5sealed | 805 | Klakauskas, Paulius (1500) | Lost 1-2 | -191497 |
| 6sealed | 909 | Weber, Maurice (1460) | Lost 0-2 | -181479 |
| 7sealed | 836 | Berger, Natalia (1492) | Won 2-1 | +181497 |
| 8sealed | 727 | Wojno, Lukasz (1629) | Won 2-0 | +201517 |
| 9sealed | 546 | Bradshaw, Luke (1471) | Lost 1-2 | -181499 |
| top | average opponent: 1485record: 4-5 | new rating: 1499 | ||
| Grand Prix London 2015 (ORI standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 88 | De Leon, Angelo (1449) | Won 2-0 | +171517 |
| 2standard | 87 | Lakeman, Tristan (1518) | Won 2-0 | +181535 |
| 3standard | 124 | Andrade, Claudio (1672) | Won 2-1 | +211556 |
| 4standard | 77 | van Montfoort, Kees (1668) | Lost 0-2 | -161540 |
| 5standard | 167 | Spalinger, Samir (1536) | Lost 0-2 | -181522 |
| 6standard | 256 | Naess, Steinar (1500) | Lost 0-2 | -191503 |
| 7standard | 282 | Downes, Shane (1501) | Lost 0-2 | -181485 |
| 8standard | 251 | Thompson, Samuel (1421) | Won 2-0 | +171502 |
| 9standard | 188 | Garus, Henning (1497) | Won 2-0 | +181520 |
| top | average opponent: 1529record: 5-4 | new rating: 1520 | ||