Tamworth's MacKayler Mitchell produced her first winner as a trainer at the last Tamworth meeting - just three months after the 24-year-old was granted her trainer licence.
Berling is her only horse.
He had an all-the-way win in the Longyard Hotel Pace, with Sarah Rushbrook taking the reins.
"It is pretty exciting," said Mitchell. "I was hoping for the win but not expecting it.
"He ran a good trial for me the other night and Sarah's driving is always good - she knows the horse well now."
Berling, an eight-year-old Courage Under Fire gelding, commenced from the two barrier, gained the lead, dictated terms and went on for a six-metre win over Nice One Jon (Brendan James). Point Oh Five (Tom Ison) was 2.6m away in third place.
"MacKayler is learning as she goes and is doing a great job," said Rushbrook.
Berling was having only his eighth race start under Mitchell's training.
"The horse travelled beautiful in the race," said Rushbrook. "When MacKayler first got the horse, if I had launched him out of the gate like that, I wouldn't have got home. But when I hit the front he was relaxed, felt super and finished the race off.
"Leading the field, there was always a chance they were going to come at me. My main concern was Nice One John and I tried to keep him in there as long as I could."
While leading, Berling had to contend with Teesmee (Darren Grant) racing out in the breeze and Nice One John, who was on the leader's back.
"Berling just felt so good," said Rushbrook. "I knew he was going to finish the race off nice and strong.
"It was really good to see MacKayler get her first winner - she only brought the horse to get her own reins licence."
Rushbrook then picked up a training win herself and a driving double for the day when her own pacer Gotta Rush won the Bungalow G-Home & Lifestyle Store Marius Street Ladyship Pace.
"I have had a great day - two winners and two seconds, I couldn't ask for anymore," she said.
Rushbrook had her two seconds with outside drives for the Richard Williams-trained Jaspers Ayr and the Ken Natty-trained Clancy Pants.
"She is a bit special to me this one," said Rushbrook, referring to Gotta Rush, a Mr Feelgood mare.
"This poor mare has just had bad draw after bad draw and running the biggest races that look like nothing on paper, but the draw helped for sure today."
Gotta Rush went straight to the lead from the one barrier and in doing so produced an all-the-way win in the 1980m race, which resulted in a mile rate of 1min 59.3sec.
"She is bit of a lazy bugger and switches off out in the front and you have to keep her signed on but she does it easy in the end."
Gotta Rush had a 4.7m win over Peggy Sue Shannon (Dean Chapple), with Corsini (Stacey Weidemann) another 4.9m away in third place.