The 19-year-old rookie found herself thrown into the spotlight as a Rolex first time winner after defeating Tour veteran Pat Hurst on the second hole of a sudden-death playoff.
Delasin took home her first professional trophy and a paycheck of $150,000.
This was a very proud moment for her father Arsenio.
Serving as Dorothys caddie, Arsenio was by her side to witness the culmination of over a decades worth of efforts. 11 years of hard work had paid off. Father and daughter were a long way from Lincoln Park - the municipal golf course in northern California where Dorothy hit her first ball at the tender age of 8.
Delasin, an amateur phenomenon in Northern California, went on to receive the Rolex Rookie of the Year title, ironically making her the first US player to receive this title since Pat Hurst in 1995.
This week Delasin has an arduous task ahead of her as she defends her first win.
With a single season under her belt, the Lubbuck, TX native has never had the opportunity to play Squaw Creek in competition much less mount a defense.
But Delasin, the by-product of a working-class upbringing, is used to unfamiliar ground, and comes into this week with a solid record that speaks for itself.
The second year veteran has four top-10 finishes to her credit this season - which is four more than she had going into last years event. Although her best finish this year was a tie for 5th at the Standard Register Ping, Delasin has accumulated over $266,146 in prize monies.
Eight out of nine past champions will compete in this year's event, which in its 12th year, returns to Squaw Creek CC after an eight-year hiatus. Hall of Famer Beth Daniel is the only past champion not returning to compete this year.
Golfing greats and past champions Beth Daniel (1990), Betsy King (1992), and Deb Richard (1991) all recorded wins while the event was held at Squaw Creek CC.
Past champions Deb Richard (1991), Nancy Lopez (1993), Tammie Green (1994, 1997), Michelle McGann (1995, 1996), Se Ri Pak, (1998), and Jackie Gallagher-Smith (1999) as well as defending champion Dorothy Delasin recorded their victories at Avalon Lakes GC.
There have been seven playoffs in the tournaments 11-year history - three of which occured while the tournament was played at Squaw Creek CC.
What awaits the players this week is a challenging 6,361-yard par 72 course with water that comes into play throughout the front nine and on numbers 10 and 11. The longest hole on the course is the par 5 2nd, which plays to 526 yards. There are three hole-in-one opportunities in the form of par 3s measuring in the 160 to 190 yard range.
'This course is much more challenging,' former champion Pak said Wednesday. 'Especially with the greens having undulation and being very hilly. There are lots of trees and its not as wide, so you have to cut shots and draw shots. You have to think more about the shot, the greens are tough, so its a pretty tough golf course.'
Much like last year Karrie Webb and Annika Sorenstam are conspicuously absent from the field.
So its up to Delasin and Gloria Park - a fun watch for fashion and great golf - as well as recent headliners and hotties Jill McGill and Dottie Pepper to entertain the crowds.