The two-year-old, which has tasted success at Halcrow Stadium several times, is owned and trained by former league footballer Buff Douglas.
Bunker finished by a comfortable 3.25 lengths winning margin from runner-up 5/2 shot Ecstasy in the 8.45 race.
The Stranraer kennels made it a double-up in the 9.15 race with Jetski coming home as 6/4 victor.
There was a West Cumbrian one-two in the 8.30 sprint trip.
Mo’s Nemo, a three-year-old dog from the Rickerby kennels at Workington, finished half a length in front of Drogba, owned and trained at the Hansel kennels, also in Workington.
RESULTS and STARTING PRICES
First race (7.30) – 1, Ross, trap 1, price 2/1; 2, Bally Doyle, 3, 5/2; distance a neck; winning time 18.07 seconds.
Second (7.45) – 1, Flaming Jill, 2, 5/4; 2, Smiddy, 3, 5/4; 4.25; 17.29.
Third (8.00) – 1, Music, 3, 1/2 fav.; 2, Careless Dream, 6, 5/4; .75; 17.17.
Fourth (8.15) – 1, Jag, 1, 6/4; 2, Dun Soaked, 3, 5/4; 3.25; 17.44.
Fifth (8.30) – 1, Magnet, 4, 2/1; 2, Blue Seal, 6, 2/1; 1.5; 17.51.
Sixth (8.45) – 1, Bunker, 4, 5/4; 2, Ecstasy, 6, 5/2; 3.25; 17.36.
Seventh (9.00) – 1, Mo’s Nemo, 5, 3/1; 2, Drogba, 1, 2/1; .5; 17.28.
Eighth (9.15) – 1, Jetski, 2, 6/4; 2, Drake, 1, 2/1; .75; 17.30.
Ninth (9.30) – 1, Crook’s Boy, 4, 2/1; 2, Danny’s Dan, 5, 5/2; 1; 30.01.
