Max Verstappen finished the Spanish Grand Prix in 10th place after a penalty was given to him. But before that, he would have finished in the top five. Christian Horner explains Red Bull Racing's thought process behind pitting for hard tyres. Verstappen ran a
three-stop strategy during the race, until a last-minute safety car came out. Then he made his fourth stop.
Regarding Verstappen’s race, team principal Christian Horner said, “Right up until that safety car, we were a lot closer to the McLarens through strategy than we should have been. They should have been 20 seconds up the road, maybe more, through the strategy we elected to take.”
“It kept us in the hunt. We got a slight chance of an undercut at that last one. I don't think we'd have kept it, but we might have got track position. So up until that point, I felt that we'd done everything right.”
After Kimi Antonelli went off the track in the last stint of the race, a safety car was called.
Horner said, “The pit stops had been strong, the strategy had been right. Unfortunately, the safety car at that point comes out. You don't want to stay on that set of tyres because everybody else has taken a fresh set and the only thing that we've got left is a new set of hards that you've got no real knowledge of.”
When asked if he would make the same choice again, he said, “In 20/20 hindsight, you'd have left him out; he would have got passed by the two McLarens.”
Horner then questions, “Would he have got passed by [Charles] Leclerc? it's all subjective, you never know. You make a decision with the information you have on hand.”
“The risk we're going on to the three-stop is that in a safety car scenario in the last third of the race or quarter of the race you've got, you're exposed.”
Which is precisely what happened to Red Bull Racing. As they had already stopped three times, they only had hard tyres left. Leclerc was right behind him and pitted to be on fresh softs versus his old mediums.
After being asked about the softs Verstappen had, Horner said, “The initial set had been used, obviously it's done qualifying and then it does all the laps to the grid and does all the race starts."
“It essentially had seven or eight laps on it. It was the same as on the car. You're faced with the choice of a brand new set versus an eight-lap-old set that has taken a bit of a pounding.”
Horner admitted, “With 20/20 hindsight, it's very easy to stay out. Will he have finished third, fourth, who knows? But you can only go with the information you have on hand.”