Fletcher scored two goals at George Mason on Saturday.
On George Mason's end, the Patriots (2-2) came into the game converting just 16.7 percent of their free position attempts and buried 7-of-10 attempts on the afternoon. Chachi Kelehan paced the George Masson offense with a game-high five goals, while Brooke Lorber and Alexa McGovern scored three goals apiece.
The hosts wasted no time getting on the scoreboard, scoring twice (Kelehan, McGovern) in the game's first 2:08 to take an early 2-0 lead. Liberty answered with back-to-back goals from freshman Carly White, her second of the year, and Fletcher to tie it up at 2-2 less than five minutes into the contest.
Over the next 15 minutes, the Patriots went on a 4-1 run, spotlighted by two tallies from Kelehan and goals from Lorber and Lobaccaro, to go ahead 6-3.
Hannah Quast brought the Lady Flames back within two (6-4) with 7:37 remaining in the opening half. Following a George Mason turnover, Ashlyn Altieri fed a long pass ahead to McCaffrey, who scooped the ball up and found Fletcher. Fletcher sent a pass to Quast, who beat George Mason goalkeeper Elizabeth Benedetto for her eighth goal of 2017.
Just over a minute later, senior Courtney Brown scored from the left side, her fifth of the season, to bring Liberty to within one at 6-5 with 6:26 left in the first stanza.
George Mason's Lorber scored the final goal of the half with 5:01 remaining, giving the Patriots a 7-5 lead over the Lady Flames at the break.
The home side opened the second half with goals from Kelehan and Lobaccaro in the first 3 and a half minutes to seize a 9-5 advantage.
Liberty redshirt sophomore Paige Britton scored on a 2-on-1 opportunity for her fourth of the year, to trim the lead to 9-6. The Patriots responded with three unanswered goals, capped off by Hailey Johnson's lone goal of the day, to surge ahead, 12-6, with 19:23 remaining.
The Lady Flames responded with a 4-1 run of their own over the next 7:55 to get back into the game. Fletcher scored on a free-position attempt, her fourth of 2017, with 17:54 remaining.
On the ensuing possession White won a draw control and fed a pass ahead to Quast. Quast raced ahead inside the George Mason eight-meter arc and found McCaffrey uncovered in the middle. McCaffrey ripped a shot into the back of the frame, making it 12-8 with 17:37 left.
The Patriots' McGovern's third goal of the day pushed the George Mason lead back to five with 11:44 remaining. However, Liberty's Jenna Joyal and McCaffrey struck with goals just 15 seconds apart from each other to bring the Patriots' lead down to 13-10 with 10:28 left.
Joyal's goal came from the right side on a pass from Foster, while McCaffrey's was unassisted.
The Lady Flames only managed one shot and surrendered three George Mason goals (Lorber, Hannah Warpinski and Taylor Altomare) over the final 10:28 to settle the final score at 16-10.
Tarris (1-4) was credited the loss for Liberty, yielding 15 goals while making seven saves in 58:04 in net. Benedetto (2-2) collected her second win of the season, surrendering 10 goals and making seven saves in 57:11 of action.
George Mason held the edge in shots (28-21), shots on goal (23-17) and ground balls (22-21). Individually, Warpinski scooped up a game-best seven ground balls for the Patriots, while Liberty senior Victoria Tickle collected a team-best four. The Lady Flames' Altieri collected three ground balls and a team-high three caused turnovers.
The Lady Flames will be back in action Monday night under the lights of Joe Walton Stadium at Robert Morris (3-4). Game time is set for 7 p.m. in Moon Township, Pa.