Saint Mary's is now 9-2-2 overall and 0-0-1 WCC while Gonzaga is 7-4-1, 0-0-1 WCC.
The Gaels would end up outshooting the Bulldogs 22-11, including 12-5 in the second-half. Gonzaga goalkeeper Susan Brown made 11 saves and SMC's Kate Brenot had four saves.
In the scoreless first-half, the Gaels would outshoot the Bulldogs 9-5 as SMC had five shots on goal. Jordan Marada made a nice move in the first-half to get around the keeper but her shot sailed just left as the match remained scoreless.
In the second-half, Gonzaga's Sarah Rhodes fired a shot from 25 yards out on a pass from Emily Hutchins. The ball went into the middle-upper left of the net, past the outstretched arms of SMC's Brenot. Gonzaga had its 1-0 lead in the 66th minute.
Saint Mary's would keep the pressure on as the Gaels would tally nine total corner kicks and it was Marada's corner kick in the 81st minute which set up the goal by Shimkus. Marada floated the corner into the box and Shimkus put her head on the ball for the header which went into the goal to tie the match at 1-1.
Both squads would take one shot apiece in the first overtime and come up empty. Neither team could get a shot off in the second overtime period as the match ended in a 1-1 tie.
Marada and Kaytlyn Steele took four shots apiece while Christina Tognetti took three shots. Melinda Madden, Daelyn Paul, Shimkus, Caroline Kreuz and Sara Ives each took two shots.
The assist by Marada was her sixth of the season, giving her 20 total points (seven goals) which surpasses her high of 19 points as a freshman.
Rhodes paced Gonzaga with four shots while Emma Dolcetti and Emily Eckmann took three shots apiece.