'I came here this week expecting big things of myself, had a lot of expectations from everybody, and just to pull through and to be able to play as well as I did this week, this means a lot,' Pressel said. 'It's definitely encouraging.'
Pressel was 7-under par during the final match and an impressive minus-40 for the entire week, including the stroke play portion of the tournament.
'That's a lot,' stated Pressel. 'I struck the ball extremely well this week. I made a lot of putts and 40-under par is a lot. I don't know, I just played well.'
Pressel, who never trailed in the final, won the first when Martinez bogeyed the par-5 opening hole. Pressel moved 2-up on her opponent with a birdie on the par-4 third.
Martinez, who beat Alison Whitaker 4 and 3 in the semifinals, fought back with birdies on five and seven to square the match. Pressel took a 1-up lead to the second nine with a birdie on the par-four ninth.
Each player made a mess of the 10th, as they halved the hole to double-bogey sevens. Martinez squared the match for the final time with a birdie on the par-three 12th at the Settindown Creek Course at Ansley Golf Club.
Pressel, who tied for second place at this year's U.S. Women's Open, was conceded birdies on 13 and 16 to grab a 2-up lead. She never looked back from there.
The 17-year-old ran in a 28-foot birdie putt on the 17th and two-putted for birdie on 18 to finish the opening 18 holes 4-up.
The second 18 was more of the same and was played in a fairly steady rain. Pressel, who got to the final with a 3 and 1 win over Angela Park, was conceded birdie on the No. 19. She made it two in a row with birdie at the next to take a 6-up.
Pressel won three consecutive holes from the 22nd thanks to three straight bogeys by Martinez.
Martinez tried to fight back with a win on the 23rd, but the 21-year-old made a mess of the next to again fall 9-down.
Pressel tripped to her first bogey of the afternoon at the 27th hole as her lead dropped to 8-up. However, she closed out the match at the next by securing a par on the par-5 28th.
'I thought it was going to be good for me to take a break,' said Martinez of the break between the morning and afternoon 18s. 'I thought it was probably that I was tired and I needed to rest a little bit. When I came out for the second round, I came out with the best thoughts. Four-down is nothing, you can make four birdies and come back, but it never happened.'
The champion has a busy schedule the remainder of the year. Pressel is playing in the North & South Amateur next week. She has accepted a pair of invitations into LPGA events, the Wendy's Championship and the State Farm Classic. She then has the Junior Solheim Cup and after that will head to the first stage of LPGA Qualifying School in California.
'I would love to do that. I just don't know,' Pressel said of her defending this crown next year. 'If I don't make it at Q-School, then I would imagine I'd stay an amateur, but I don't know.'