Here's Wikipedia's list/average of polls presently as we approach the actual election. If we treat the 4 aligned Right parties as one block, and their opposition as another - even though it isn't as formally linked - it is effectively a tied race. The issue is that MP/The Greens are below the threshold and if they don't make it in then its GG, Conservative majority barring any surprises. Maybe therefore S shouldn't be running such a personalistic campaign, since a presidential-style contest will lead to a percentage of voters within each camp migrating to the "presidential" candidates.
There are enough voters in both camps who would strategically vote for a minor party for this to not happen.