Realistically it's still Norris's to lose, he's 24 points ahead with 58 points maximum available over the next 2 weekends.
However, do McLaren have issues after today? It's hard to tell but there are persistent rumours of engine changes etc coming down the tracks (excuse the pun) over the next 2 weekends.
On paper, the circuit in Qatar favours the McLaren car with long corners. So if they have a clear advantage they have to wrap it up with Norris there.
One great unknown is Red Bull, and if the car has developed enough to close the gap to McLaren. If so then Max is well and truly in this.
The other great unknown is Norris himself. He has demonstrated clear weaknesses in wheel to wheel battles with Max and others this season, and has a growing tendency to make average starts. Turn 1 in Qatar is and has for the past few seasons been a recipe for first lap contact.
So at this remove Norris is still the favourite, but I did see somewhere that Max is 16/1 to win the title. If I were a betting man those would be very tempting odds ...