The Red Lion junior field hockey player -- who was voted the Division I Player of the Year last season -- shows no signs of slowing down this season.
On Thursday, Posey scored a first-half hat trick, helping the Lions to a 5-1 win against New Oxford.
"I'm trying to pass more to everyone so our team can get stronger for the years ahead," Posey said.
Posey finished the game with those three goals and an assist.
"She has a great reverse stick hit and just some skills that you typically don't see from a majority of high school players," Red Lion head coach Carol Gillmen said. "She's well known (around the league). I think Dallastown had four people on her.
"She keeps pursuing the ball in the circle. That's what makes her so dynamic. She has great possession skills."
Posey opened the scoring at 21:07 in the first half, beating Colonials goalie Amanda Groft.
Red Lion (2-1) teammate Alyssa Castle followed less than a minute later, scoring at 20:23, giving the Lions a quick 2-0 lead.
Two more Posey goals at 14:55 and 3:23 completed the first-half scoring.
"More people play defense on me now, so we've got to work our way around that," Posey said. "We've been trying different spots for me to spread it out."
In the second half, the Lions scored their final goal with 6:25 left when Posey found Olivia Uberti.
"We made some changes in the second half," Gillmen said. "I thought we were attacking on the left side, the weak side instead of trying to generate things on the right side. I'm still looking for us to think attack on the right side of the field. We're still trying to build and develop that."
The Colonials (0-2) got on board with 3:18 to play when Carly Castle found Sarah Groft, who beat Lions keeper Gabi Uberti.
New Oxford finished with four shots on goal at Horn Field.
"We don't practice on turf, and it's a little faster than what we're used to playing on," New Oxford head coach Cheryl Mowery said. "We need to get used to that and anticipate the pass and cut quicker."
The Colonials finished 7-10-1 last year and have five seniors on this year's team.
"We lost 15 girls from last year, so we're building," Mowery said. "We're hoping to improve our stick work and work together."
Red Lion, which went 13-1 in Division I last season en route to a division title also won the league title and won a game in the District 3 Class AAA tournament. This season, the Lions are looking for more of the same.
"You can't take anyone lightly," Gillmen said. "One loss (Red Lion lost to Dallastown on Tuesday) is not going to make or break your season at this point. We just want to keep getting better."
RED LION 5, NEW OXFORD 1
New Oxford -- 0 1 -- 1
Red Lion -- 4 1 -- 5
First Half -- 1. RL, Ali Posey, 21:07, 2. RL, Alyssa Castle, 20:23, 3. RL, Posey, 14:55, RL, Posey, 3:23.
Second Half -- 5. RL, Olivia Uberti (Posey), 6:25, 6. NO, Sarah Groft (Carly Castle), 3:18.
Shots On Goal -- NO 4; RL 13.
Corners -- NO 5; RL 6.
Goalies -- NO, Amanda Groft (8 saves); RL, Gabi Uberti (3 saves).