WSR driver Colin Turkington claimed an emphatic British Touring Car Championship victory in the opening race at Donington Park, leading from lights to flag over Ashley Sutton.
BMW 330i M Sport pilot Turkington never faced a serious threat for the win, pulling clear at two restarts following a safety car to take his 47th series victory by 2.254 seconds.
Having scored his first pole since 2016, defending champion Turkington made a clean getaway in his ballast-free 3 Series to lead into Redgate while Sutton dived up into second.
Sutton's good launch, combined with points leader Josh Cook being maxed out with 54kg of ballast and starting on the hard compound option tyre, meant he outdragged the BTC Racing Honda Civic Type R off the line.
But the race was neutralised by the safety car due to a heavy shunt for Andrew Jordan and Adam Morgan on the first lap.
After a strong start, Jordan passed Aidan Moffat and Ollie Jackson but on the approach to Old Hairpin Rob Collard dived up his inside.
The pair touched and as Jordan tried to collect the slide he span across the track where an unsighted Morgan shunted heavily into the driver's door of the left-hand drive BMW.
Stephen Jelley then added a second hit as the cars parted in front of him while Jackson and Jake Hill collided in the melee.
After a four-lap tidy up, Turkington took an early restart and was well clear of Sutton as Sam Tordoff closed on Cook's Honda for third.
The pair ran side-by-side through Coppice and into the chicane but touched.
Cook suffered a puncture as a result and dropped down the order before his left-rear tyre delaminated.
That combined with Nicolas Hamilton shunting into the wall at the pit entry resulted in another lap behind the safety car.
Again Turkington was clear of Sutton at the restart but Matt Neal progressed past the Toyota Corolla of Tom Ingram for fifth.
Just after half-distance, Turkington and Sutton were edging away as Tordoff span by himself under braking into the chicane to promote a fast-starting Tom Oliphant onto the podium.
Turkington then set the race's fastest lap as he pulled away from Sutton at the rate of two tenths per lap, cruising on to win.
Behind Sutton and Oliphant, Neal's robust defence kept Ingram behind with Dan Cammish in sixth.
Cook's team-mate Chris Smiley dropped to seventh as Motorbase driver Tom Chilton climbed from 13th to eighth - beating Vauxhall Astra pairing Jason Plato and Collard.
Senna Proctor transformed his lowly 23rd effort in qualifying into 12th amid the crashes, while Tordoff recovered to 13th ahead of Moffat.
Race one result
|2||Ash Sutton||BMR Racing||Subaru||19||2.254s|
|4||Matt Neal||Team Dynamics||Honda||19||8.543s|
|5||Tom Ingram||Speedworks Motorsport||Toyota||19||9.027s|
|6||Dan Cammish||Team Dynamics||Honda||19||9.480s|
|7||Chris Smiley||BTC Racing||Honda||19||9.862s|
|8||Tom Chilton||Motorbase Performance||Ford||19||10.899s|
|9||Jason Plato||Power Maxed Racing||Vauxhall||19||12.267s|
|10||Rob Collard||Power Maxed Racing||Vauxhall||19||12.488s|
|11||Rory Butcher||AmD Tuning||Honda||19||12.722s|
|12||Senna Proctor||BMR Racing||Subaru||19||13.166s|
|13||Sam Tordoff||AmD Tuning||Honda||19||20.103s|
|14||Aiden Moffat||Laser Tools Racing||Mercedes||19||20.370s|
|15||Jack Goff||Team Hard||Volkswagen||19||21.317s|
|16||Rob Smith||Excelr8 Motorsport||MG||19||25.972s|
|17||Stephen Jelley||Team Parker Racing||BMW||19||26.652s|
|18||Bobby Thompson||Team Hard||Volkswagen||19||27.156s|
|19||Daniel Rowbottom||Ciceley Motorsport||Mercedes||19||29.120s|
|20||Carl Boardley||Team Hard||Volkswagen||19||33.106s|
|21||Michael Crees||Team Hard||Volkswagen||19||34.276s|
|22||Sam Osborne||Excelr8 Motorsport||MG||19||35.186s|
|23||Mark Blundell||Trade Price Cars Racing||Audi||19||35.888s|
|24||Josh Cook||BTC Racing||Honda||18||1 Lap|
|-||Nicolas Hamilton||Motorbase Performance||Ford||7||Retirement|
|-||Matt Simpson||Simpson Racing||Honda||1||Retirement|
|-||Adam Morgan||Ciceley Motorsport||Mercedes||0||Retirement|
|-||Ollie Jackson||Motorbase Performance||Ford||0||Retirement|
|-||Jake Hill||Trade Price Cars Racing||Audi||0||Retirement|