Toyota's Kalle Rovanpera led the Central European Rally after teammate and title rival Sebastien Ogier crashed out on Saturday.
The Finn, who is leaving rallying at the end of the year to switch to circuit racing, ended the penultimate day 36.3 seconds clear of Hyundai's Ott Tanak.
Eight times world champion Ogier, leader in the standings before the weekend, ran wide on a slippery leaf-covered stretch of road and struck a tree during the day's second stage.
The Frenchman and co-driver Vincent Landais were unhurt and expected to start again on Sunday, when there will still be points to be won.
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