Replying to Politics Question Please Answer (Canada/Ontario)

So the provincial elections are coming up. And I heard John Tory is running in Toronto for his seat in the house. But theres no way in hell the conservatives will win toronto (unfortunately). So Im wondering...:

*What happens if the person running for premier doesn't even win his own riding? *

I dont want to get into some gay ass politics debate, im just wondering what happens if he doesnt even win his own seat? Is he gaurenteed a seat either way.

Thanks.