The Turkish language variant of the page shows more recent polls.

The most recent one is from Jan 27 to Feb 2nd and it shows Kılıçdaroğlu winning against Erdoğan with 46.3% to 40.1% in the first round, 48.2% to 40.3% in a potential run-off, with 11.5% undecided.

That was still before the earthquake though. It will remain to be seen what effect the earthquake and Erdoğan's response to it has.