Costa, Tiago
Current rating: 1436
| Grand Prix Utrecht 2017 (AER standard) | starting rating: 1505 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 76 | van Heerden, Thomas (1459) | Lost 0-2 | -181487 |
| 3standard | 425 | Postma, Jan (1576) | Lost 1-2 | -171470 |
| 4standard | 560 | Hupkens, Tobie (1409) | Won 2-0 | +171487 |
| 5standard | 374 | Kreijne, Jeroen (1481) | Lost 1-2 | -181469 |
| 6standard | 474 | Pohl, Mario (1485) | Lost 1-2 | -181451 |
| 7standard | 500 | Urff, Alexander (1534) | Lost 0-2 | -161435 |
| 8standard | 442 | Pape, Harry (1449) | Lost 1-2 | -181417 |
| 9standard | 412 | Schardt, Torsten (1453) | Won 2-1 | +191436 |
| top | average opponent: 1481record: 2-6 | new rating: 1436 | ||
| Grand Prix Madrid 2016 (KLD standard) | starting rating: 1528 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 222 | Gagniere, Antoine (1428) | Won 2-1 | +161544 |
| 2standard | 292 | Sandoval, Nacho (1516) | Lost 1-2 | -181526 |
| 3standard | 603 | Sierk, Kolja (1517) | Won 2-0 | +171543 |
| 4standard | 227 | Enriquez, Christian (1467) | Won 2-0 | +171560 |
| 5standard | 145 | Perez Cabeza, Ruben (1487) | Lost 0-2 | -191541 |
| 6standard | 338 | Vicente Mora, Javier (1590) | Won 2-1 | +191560 |
| 7standard | 284 | Theurel, Sebastien (1585) | Lost 1-2 | -181542 |
| 8standard | 329 | Luengos, Dani (1587) | Lost 0-2 | -171525 |
| 9standard | 408 | Ballester, Juan (1446) | Lost 0-2 | -201505 |
| top | average opponent: 1514record: 4-5 | new rating: 1505 | ||
| Grand Prix Bologna 2016 (modern) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 569 | Jorgensen, Rune (1631) | Won 2-1 | +201520 |
| 2modern | 208 | Cal, Bugra Alp (1536) | Won 2-0 | +191539 |
| 3modern | 394 | Mulato, Daniel (1616) | Lost 0-2 | -171522 |
| 4modern | 416 | De Blasio, Francesco (1520) | Won 2-1 | +181540 |
| 5modern | 460 | Sanna, Marco (1537) | Won 2-0 | +181558 |
| 6modern | 87 | Aichinger, Thomas (1615) | Lost 0-2 | -171541 |
| 7modern | 215 | Bjezancevic, Ivan (1684) | Won 2-1 | +211562 |
| 8modern | 250 | Kall, Marian (1489) | Lost 0-2 | -201542 |
| 9modern | 400 | Rosi, Giovanni (1739) | Lost 0-2 | -141528 |
| top | average opponent: 1597record: 5-4 | new rating: 1528 | ||