After the summer break, Bottas finished 5th in Belgium, having started 3rd, as he was overtaken by both Ricciardo and Räikkönen after the safety car restart, while his teammate Lewis Hamilton won the race.
He eventually finished in 8th place.
This race extended Hamilton's lead over Bottas in the Drivers' Championship to 17 points.
Ahead of the , Bottas signed a new contract with Mercedes for the 2019 season with an option for the 2020 season.
On 8 June 2013, Bottas qualified in 3rd position at the behind 1st , and 2nd.
In December 2019, he won the -based Rallycircuit Cote d'Azur.