Willoughby, Ethan
Current rating: 1551
Record: 8-6
| Grand Prix Madison 2015 (BFZ limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 462 | Kane, Will (1496) | Lost 0-2 | -181482 |
| 2sealed | 413 | Rubinstein, Garrett (1362) | Won 2-1 | +161498 |
| 3sealed | 578 | Noren, Cara (1500) | Won 2-0 | +181516 |
| 4sealed | 288 | Sprague, Austin (1521) | Won 2-1 | +181534 |
| 5sealed | 175 | Miller, Corey (1536) | Won 2-0 | +181552 |
| 6sealed | 192 | Owens, Jacob (1469) | Won 2-0 | +161568 |
| 7sealed | 97 | Babb, Roger (1574) | Won 2-1 | +191587 |
| 8sealed | 59 | Pound, David (1620) | Won 2-0 | +181605 |
| 9sealed | 42 | Rolf, John (1751) | Lost 0-2 | -151590 |
| 10draft | 76 | Brieger, John (1638) | Lost 0-2 | -171573 |
| 11draft | 92 | Cocchiarella, Sam (1581) | Lost 0-2 | -181555 |
| 12draft | 85 | Heule, Tyler (1663) | Won 2-1 | +201575 |
| 13draft | 86 | Lopez, Rodrigo (2020) | Lost 0-2 | -111564 |
| 14draft | 44 | Havlovic, Bob (1801) | Lost 1-2 | -131551 |
| average opponent: 1609record: 8-6 | new rating: 1551 | |||