Suzuka: Daniel Ricciardo says he has "no regrets" over his underwhelming move to Renault, believing a sixth consecutive season at Red Bull Racing would have pumped the brakes on his Formula One career.

The 30-year-old, winner of seven Grands Prix for Red Bull, made a dramatic shift to Renault for 2019-20 last September, but has laboured to 10th place in the drivers' championship after finishing inside the top six in four of the past five seasons.

While Red Bull looks set to finish third behind Mercedes and Ferrari in the F1 constructors' championship for the third year in succession, Renault's form has dipped, the French squad overtaken by a resurgent McLaren in 2019.

Red Bull won the Austrian and German Grands Prix with Ricciardo's former teammate Max Verstappen, while the Australian's fourth-placed finish in September's Italian Grand Prix at Monza is Renault's best result in 16 races.

Speaking exclusively to Fairfax Media at this weekend's Japanese Grand Prix at Suzuka, Ricciardo acknowledges that Renault's 2019 campaign has fallen short of his and the team's expectations, but hasn’t looked back since making his radical career change.