Darko Vojinovic/Associated Press
By the end of his seventh lap, Marcus Ericsson was 53 seconds—more than half a lap—behind race leader Rosberg. The Mercedes man had a nine-second-plus cushion to the Bottas-Vettel-Alonso scrap behind him, and Ricciardo was 17 seconds behind in sixth.
Felipe Massa, who becomes notable shortly, was nearly 24 seconds down.
Ericsson crashed heavily at Turn 3 on his eighth lap. As soon as the teams saw the incident, they knew the safety car would be out—but the timing and positioning of the crash meant the leading four cars had passed the pit entrance before their teams could relay the instruction to stop.
The timing for these four was terrible. The safety car emerged alongside the medical car, directly in front of Rosberg as he reached the end of the pit straight at the start of his ninth lap.
He, along with Bottas, Vettel and Alonso, had to do a whole lap behind the safety car before they could pit.
But Ricciardo, having been delayed by Button, had not passed the pit entrance. He got the call to stop just in time and switched to slicks, emerging onto a clear track.
Before they reach the queue behind the safety car, all drivers have to slow down and drive to a "delta"—a slower time they are advised of which is relative to their previous laps.
It's slow, but significantly quicker than the pace of the safety car.
So despite it containing the bulk of his pit stop, Ricciardo's Lap 9 was substantially quicker than those of the leading four cars.
They all pitted at the end of Lap 9, and Ricciardo—who had jumped Button in the pits—took the lead. Rosberg emerged behind Massa—a net loss of at least 25 seconds.