The Lady Blue Devils scored three first-half goals and two goals in the second, including one on a penalty kick, for the decisive victory.
"I didn't see anything different that they were bringing to us. We made two crucial mistakes," Cass coach Phil Phillips said. "The first goal they made ... it was a good goal. The girl took a nice shot, about 25 yards out, [it] just went over the top of the goalie. The second goal, Becca's [Strother] not realizing [where she is] -- this is [being] young, being inexperienced. She's outside of the box at the 6-yard line [and] is trying to push the ball over the [cross]bar. Of course, she pushes the ball in the goal."
Ally Chastain scored Marietta's first goal in the 19th minute, and Jessica Monahan added another goal in the 20th minute. Monahan notched the team's third goal in the 26th after sending a failed clearance back toward the Lady Colonels' net.
In the second half, Chastain got into the box and was fouled to earn herself a penalty kick, which she boomed to the right of Strother to give the Lady Blue Devils a 4-0 lead.
Mary Grace King tallied Marietta's final goal to cap the scoring.
"I knew they were going to be a good team. They've played a lot of tough games. They're in a tough region," Phillips said of the Region 5-AAAAA Lady Blue Devils. "They're [3-11], but they got a good team. We're just young, still building a foundation. We got three seniors [and] two juniors."
Cass was outshot 29 to 8, with Marietta getting 16 of those shots on target compared to the Lady Colonels' three.
Freshmen forward Mallary Hedden, however, infused life into the Cass offensive attack, nutmegging a defender at one point during the second half to get a shot off.
This soccer season has been about competing for the Lady Colonels, not results, and Phillips would like for his team to go out doing just that.
"It's not about wins and losses as far as I'm concerned, it's just about getting out here and competing," he said. "You can see the youth because there [are times] when they show up and [times] they don't show up. ... We just get out there and compete hard, play hard, that's all I'm looking for. We [knew] we were gonna have a rough year this year.
"If they finish out the year competing hard, we get lucky enough to pull a win out of the last two games, we end on a good note, and we got a lot to look forward to next year."
Cass (3-11-2) hosts South Forsyth Friday for Senior Night -- where it will honor Marbeli Castro, Jordan Drawver and Taylor Armstead -- and concludes its season Tuesday at Northwest Whitfield. Both matches start at 6 p.m.
Marietta 3, Colonels 2
In the Cass boys' match, the Colonels fell behind 3-0 in the first half but rallied back to make the Blue Devils sweat a bit.
Cass' Christian Dolores scored a goal -- on a Kenneth McPherson assist -- right before halftime to cut the lead to two, and Mike Saunders gave the Colonels their second goal six minutes into the second half.
"We spotted them a couple of goals early on which we shouldn't have, but we fought back," Cass coach Frank Kunf said.
The Colonels have begun to make strides late in the season, especially the last three matches, Kunf said.
"It's taken a while for us. We have a lot of different players who play different sports so we've been slow to come together," he continued. "The kids are starting to come together, and we're starting to work hard."
Playing other teams in Region 7-AAAA, like Chattahoochee, makes it tough because those teams play together year-round. Cass does not.
"That's our biggest disadvantage as a team," Kunf admitted.
The Colonels (3-11) have a couple of matches remaining. They host South Forsyth at 8 p.m. Friday for Senior Night, where players like Morgan Ainsworth, Zach Klaus, Nelson Moraga and Saunders will be honored. Cass travels to play Northwest Whitfield Tuesday at 7:30 p.m.
"We just gotta take it one game at a time," Kunf said. "We've been improving in small amounts, on offense and defense. ... You've gotta learn to lose before you can start winning."