Oscar Piastri has parted ways with managers Mark and Ann Webber, one day after the McLaren driver placed sixth in a winless season at the Sao Paulo Grand Prix.

Piastri and the Webbers announced Monday in a joint statement that they had mutually agreed to terminate their management agreement.

The separation took effect immediately, Sky Sports reported. McLaren teammate Lando Norris won Sunday’s race in Brazil, finishing 56 seconds ahead of Piastri.

The Webbers had reduced their trackside role before this season, appearing only fleetingly after previously attending races regularly.

“Following our reduced trackside involvement this season, we have collectively agreed that now is an appropriate time to bring our management agreement to a close,” said Mark Webber, who formerly drove for Red Bull, Williams and Jaguar in Formula 1.

Webber said the change would enable Piastri “to build on his achievements under a new management structure, and for us to embark on our new ventures.” Piastri’s management arrangements for the 2027 season have not been confirmed.

“I'd like to thank Mark and Ann for all their support and advice over the years,” Piastri said. “Their guidance has been invaluable, particularly in navigating the beginning of my F1 career.”

Piastri, 25, is racing in his 4th Formula 1 season and has yet to win this year.

He ranks seventh in the drivers’ standings, trailing Norris by 94 points, The Independent reported. Piastri has gone 16 races without a podium finish, Channel NewsAsia reported.

His position contrasts with 2025, when he led the championship for most of the season but finished third, 13 points behind champion Norris.

Piastri and both Webbers are Australian, and their working relationship began in 2019. Piastri went on to take the Formula 3 title in 2020 and the Formula 2 championship in 2021.

Alpine sought to promote Piastri into a race seat in 2022 after Fernando Alonso announced his departure for Aston Martin, but Piastri turned down the offer. Alpine lost the ensuing contract dispute.

Webber opened talks with McLaren during that period and secured Piastri’s 2023 debut with the team as fellow Australian Daniel Ricciardo’s replacement.

Webber said they were proud “to have placed him in F1 so that he could compete at the front so early on.”

Piastri has nine grand prix wins, matching Webber’s career total as a driver.

It was not immediately known whether the separation will affect Piastri’s McLaren contract or his plans for 2027.

The next round takes place in Las Vegas from Nov. 20 to 22.