Razgatlıoğlu bounced back after the disappointment of Race 2 in Assen to draw a clear line in the sand in Free Practice 1, with an impressive lap time 0.6s clear of the next closest rider at the new WorldSBK venue.
On the other side of the pit box, Locatelli continued in positive form following his career-first WorldSBK podium in Holland to complete his best Friday performance of the season so far, finishing fifth fastest and less than 0.3s from second place.
Rain dampened proceedings in the afternoon with only 14 of the 23-strong WorldSBK field choosing to venture out on track in anger. Both Razgatlıoğlu and Locatelli completed a handful of laps each in order to test wet settings on their respective Yamaha R1 WorldSBKs, and gain further experience of the circuit in different conditions.
The Pata Yamaha with Brixx WorldSBK team and its riders are keeping their fingers crossed that the weather forecast continues to improve in order to provide the Czech fans with two days of thrilling racing this weekend. One final Free Practice session of 30 minutes at 09:00 (CEST) tomorrow will allow any final set-up tweaks required before Superpole qualifying at 11:10 and the 22-lap, full-length Race 1 at 14:00.
For Friday's combined times, click here.