Only four holes into the Aberdeen Standard Investments Ladies Scottish Open on Thursday, the Korean needed the calming influence of Gary Marshall.
When she started with three birdies on the way back, however, she knew she was in control. "I didn't know that", she said after landing a £190,000 top prize for this success before adding with laugh: "I hope it (the next one) is more closer!"
Moriya's older sister and two-time major champion Ariya ended three shots further back in fifth place on 13-under, with Lee Mi-hyang taking fourth. "After that, I felt I could win the tournament and I just played with confidence after that", she admitted. "I'm probably going to be quite a few shots back, but obviously that means I can be pretty aggressive and I don't have to leave anything out there". I just tried to take advantage as much as I could.
"It's a little different tournament now to what it was when I won", she said of her 2012 victory, which won her just a couple of thousand euro more in prizemoney than her tied ninth-place finish yesterday. "The field is so much bigger and there's numerous top players here this week".
That left her comfortably clear of joint runners-up Mariya Jutanugarn of Thailand and the reigning US Women's Open champion Jeongeun Lee6 with Scotland's Carly Booth earning a share of ninth on 10-under.
Low round of the day belonged to Australian 23-year-old Minjee Lee, who went bogey free in a round of 64 (-7).
"This is the only event where I have some family, so it's always nice to come back and play in Scotland".
It was mission accomplished for Swede Anna Nordqvist and Dutchwoman Anne van Dam as they secured automatic spots in Catriona Matthew's Solheim Cup team.
Nordqvist will be playing in her sixth successive Solheim, and this is very almost home ground these days for the 32-year-old, who is engaged to former Scottish Amateur champion Kevin McAlpine, son of Dundee United legend Hamish and a full-time caddie on the LPGA. She beat me the last few weeks and this week she did a good job.
"I'm well aware of his dad's footballing career".