After spending laps shadowing Rea, Bautista made a move at Turn 3, limited to its Northern Irishman to cut back sharply.
The duo made contact and Bautista came to crashing, but they continued, with Rea retaking the lead and Bautista falling behind Alex Lowes.
Bautista instantly passed Lowes and Rea could like a lead of approximately one moment for a couple of laps until Bautista closed the gap, and made a move into Turn 3.
Rea was largely equipped to keep up with Bautista after before his pace dropped at the final stages, as he began to lose a second per lap to Bautista.
The Ducati rider finally won with a dominant 8.2so to shoot his fourth successive success with Rea also continued his streak of second-place finishes.
Rea himself enjoyed an appropriate gap to third, which was inhabited by Alex Lowes to the full race, that the Briton carrying his first podium finish of the season, closely followed by Pata Yamaha team mate Michael van der Mark.
Rea’s Kawasaki teammate Leon Haslam beat Marco Melandri (GRT Yamaha) for fifth.
Sandro Cortese introduced a fourth Yamaha into the upper seven, together with Barni’s Michael Ruben Rinaldi ending because the Secondbest Ducati,” 27.6s behind Bautista.
BMW’s Tom Sykes was up to fourth after the start however couldn’t stay in contention for top rankings and settled for ninth, followed by Toprak Razgatlioglu (Puccetti Kawasaki).
Eugene Laverty crashed at the final turn in the race, while Chaz Davies – that continued to struggle together with the Ducati Panigale V 4 ep – also had a collapse at Turn 3.