Mercedes got off to a comfortable start at Sao Paulo as it saw both its drivers end the first practice session on top of the timesheet. Lewis Hamilton was the faster of both, with Bottas little more than a tenth down on this year's World Champion.
Both Mercedes drivers repeatedly swapped positions until Hamilton eventually went fastest in the closing stages of the session.
On one of the shortest circuits on the F1 calendar, there were no other cars the proved a match. Kimi Raikkonen in the Ferrari came closest, but was still more than half a second down on the pace setter when the 90-minute session came to a close.
The duo of Verstappen and Ricciardo were up next on the eventual timing board, ahead of Sebastian Vettel in the second Ferrari.
Felipe Massa, kicking off his last home race of his F1 career was 7th fastest, ahead of the McLarens and Esteban Ocon's Force India as they completed the top 10.
Further down the pecking order, there was again major trouble for Toro Rosso as both their cars encountered technical issues. Brendon Hartley had another spectacular Renault engine failure on only his second lap of the day. Team mate Pierre Gasley had a seperate issue that forced him to stay in the garage after completing 5 laps. Like Ricciardo, yet another Renault powered driver, both were already facing grid penalties.
|1||44||Lewis Hamilton||Mercedes AMG||1:09.202||-||36|
|2||77||Valtteri Bottas||Mercedes AMG||1:09.329||+0.127s||43|
|4||33||Max Verstappen||Red Bull Racing TAG Heuer||1:09.750||+0.548s||31|
|5||3||Daniel Ricciardo||Red Bull Racing TAG Heuer||1:09.828||+0.626s||38|
|7||19||Felipe Massa||Williams Mercedes||1:10.102||+0.900s||28|
|8||2||Stoffel Vandoorne||McLaren Honda||1:10.402||+1.200s||26|
|9||31||Esteban Ocon||Force India Mercedes||1:10.454||+1.252s||36|
|10||14||Fernando Alonso||McLaren Honda||1:10.476||+1.274s||24|
|11||18||Lance Stroll||Williams Mercedes||1:10.632||+1.430s||42|
|12||35||George Russell||Force India Mercedes||1:11.047||+1.845s||29|
|13||8||Romain Grosjean||Haas Ferrari||1:11.188||+1.986s||29|
|14||20||Kevin Magnussen||Haas Ferrari||1:11.463||+2.261s||30|
|17||37||Charles Leclerc||Sauber Ferrari||1:11.802||+2.600s||32|
|18||9||Marcus Ericsson||Sauber Ferrari||1:11.898||+2.696s||28|
|19||10||Pierre Gasly||Toro Rosso||1:14.034||+4.832s||5|
|20||28||Brendon Hartley||Toro Rosso||-||-||2|