Max Verstappen not only was the pilot more worker of the day, with 38 turns, but also the fastest, with a time of 1:25.990, which marks the first time a session of free practice for 23 years in the path of Mexico. The Dutch beat Daniil Kvyat and Kimi Räikkönen, if your chrono can be removed because it jumped a curve of the path. The other pilot Toro Rosso, Carlos Sainz, was eighth.
The session started with all cars wearing intermediate tyres and even some rain in the extreme. The track dawned wet, which, together with the characteristic of bitumen that released the asphalt is new, as is the case of the Autodromo Hermanos Rodriguez, caused many riders to test the new loopholes of the path mexican. For example, one of them was Sebastian Vettel.
Vettel tells Ferrari that Turns 1, 2 and 3 are dry but there’s dampness at most of the others #MexicoGP #FP1 pic.twitter.com/WNMUKXBDlR
— Formula 1 (@F1) October 30, 2015
Quite a few more problems faced by other pilots. Nico Rosberg lost a good part of the session when the rear brakes of his Mercedes came out on fire, while Jenson Button was without just rolling by a failure in the power unit of his McLaren and just gave nine laps.
More surreal was the situation of Fernando Alonso that, to put mileage on his power unit to be renewed, or even made to mount the dry tires on your car. To save wheels face to the rest of the weekend, when no rain is expected.
One of the notes of the day starring Lewis Hamilton. Despite not passing for the 11th time, it achieved not only the highest top speed of the day, but of the entire season: 362,2 km/h.
time Table Free 1 Grand Prix of México
| Pos. | Piloto | Dorsal | Equipo | Tiempo | Gap | Laps |
| 1 |  Max Verstappen |
33 | Toro Rosso | 01′ 25″990 | 0 | 38 |
| 2 |  Daniil Kvyat |
26 | Red Bull | 01′ 26″295 | +0.305 | 27 |
| 3 |  Kimi Raikkonen |
7 | Ferrari | 01′ 26″295 | +0.305 | 36 |
| 4 |  Sebastian Vettel |
5 | Ferrari | 01′ 26″886 | +0.896 | 31 |
| 5 |  Daniel Ricciardo |
3 | Red Bull | 01′ 27″185 | +1.195 | 28 |
| 6 | Nico Rosberg |
6 | Mercedes | 01′ 27″196 | +1.206 | 19 |
| 7 | Valtteri Bottas |
77 | Williams | 01′ 27″303 | +1.313 | 26 |
| 8 |  Carlos Sainz |
55 | Toro Rosso | 01′ 27″410 | +1.420 | 37 |
| 9 |  Sergio Perez |
11 | Force India | 01′ 27″581 | +1.591 | 19 |
| 10 |  Felipe Massa |
19 | Williams | 01′ 27″695 | +1.705 | 24 |
| 11 |  Lewis Hamilton |
44 | Mercedes | 01′ 27″723 | +1.733 | 27 |
| 12 |  Marcus Ericsson |
9 | Sauber | 01′ 28″498 | +2.508 | 27 |
| 13 |  Pastor Maldonado |
13 | Lotus | 01′ 28″559 | +2.569 | 30 |
| 14 | Felipe Nasr |
12 | Sauber | 01′ 28″579 | +2.589 | 25 |
| 15 | Jolyon Palmer |
0 | Lotus | 01′ 28″711 | +2.721 | 24 |
| 16 | Nico Hulkenberg |
27 | Force India | 01′ 29″099 | +3.109 | 16 |
| 17 | Fernando Alonso |
14 | McLaren | 01′ 30″072 | +4.082 | 17 |
| 18 |  Alexander Rossi |
53 | Manor F1 | 01′ 30″619 | +4.629 | 23 |
| 19 | Jenson Button |
22 | McLaren | 01′ 32″091 | +6.101 | 9 |
| 20 | Will Stevens |
46 | Manor F1 | 01′ 32″866 | +6.876 | 11 |
–