3. Freies Training des USA-GP im Regen
Trotz weiterhin grenzwertiger Wetterverhältnisse fand in Austin das 3. Freie Training des USA-GP 2015 statt. Im strömenden Regen sicherte sich Lewis Hamilton die Bestzeit. Inwieweit das Qualifying stattfindet ist allerdings offen.
Ergebnis 3. Freies Training
| Pos. | Fahrer | Team | Runden | Zeit |
| 1 | Lewis Hamilton | Mercedes | 9 | 1:59.517 |
| 2 | Sebastian Vettel | Ferrari | 9 | 2:00.380 |
| 3 | Nico Hülkenberg | Force India | 12 | 2:00.496 |
| 4 | Valtteri Bottas | Williams | 14 | 2:00.523 |
| 5 | Carlos Sainz Junior | Toro Rosso | 11 | 2:00.687 |
| 6 | Daniil Kwjat | Red Bull | 12 | 2:00.694 |
| 7 | Kimi Räikkönen | Ferrari | 9 | 2:00.785 |
| 8 | Daniel Ricciardo | Red Bull | 12 | 2:01.008 |
| 9 | Nico Rosberg | Mercedes | 7 | 2:01.474 |
| 10 | Felipe Massa | Williams | 13 | 2:02.199 |
| 11 | Sergio Perez | Force India | 12 | 2:02.660 |
| 12 | Romain Grosjean | Lotus | 10 | 2:02.825 |
| 13 | Pastor Maldonado | Lotus | 11 | 2:02.921 |
| 14 | Fernando Alonso | McLaren | 9 | 2:03.375 |
| 15 | Macrus Ericsson | Sauber | 13 | 2:04.399 |
| 16 | Jenson Button | McLaren | 7 | 2:05.283 |
| 17 | Will Stevens | Manor Marussia | 10 | 2:05.378 |
| 18 | Alexander Rossi | Manor Marussia | 10 | 2:05.607 |
| 19 | Felipe Nasr | Sauber | 10 | 2:06.792 |
| 107-Prozent-Zeit | 2:07.883 | |||
| 20 | Max Verstappen | Toro Rosso | 7 | 2:09.994 |
