In the end, Ricciardo's winning margin was seven seconds — but only because Vettel lost time after the virtual safety car came out for the last few laps. The incident happened when Charles Leclerc shunted his Sauber into the back of Brendon Hartley's Toro Rosso. Drivers are not allowed to overtake when the VSC is deployed and must maintain a steady speed. It happened too late to influence the race.
Source: Los Angeles Times May 27, 2018 16:41 UTC