Baku lived up to its 'City of Winds' nickname and Lewis says this is one of the reasons why it was the most difficult race he can remember competing in.
"In the first stint Ferrari seemed to get the tyres switched on better," he said. "Sebastian pulled out a 2.8 second lead or something like that.
"All of a sudden, the car started to work a little bit better and I started to reign him in and I got it down to I think 2.2 at one point. It was looking good and I thought 'if I stay on this trajectory I can catch him'.
"Then I had this lock-up and I was completely baffled by what had happened. Normally when I go upstairs they would say it was just a mistake or something. I had a 25km/h head wind and then 15 km/h tailwind straight after.
"It was really strange. I hit the brakes, the car was working obviously and then suddenly the wheels just locked.
"So, that was definitely a bit frustrating because I think I was running pretty well at that point. And after that it was a bit of a struggle.
"We needed a pit stop and then obviously I was out of sync. The SuperSoft tyre continued and I was battling with Valtteri. He was in my pit stop window and not in my pit stop window.
"I was unsafe and then safe. Then I got traffic and no traffic. Tailwind. It was probably the most difficult race that I can remember having, with all the wind particularly. It really made it the toughest race."