LAND O'LAKES — A fourth-grade friendship forged by softball had resulted in a collection of lifetime memories for pals Callie Turner and Lexi Kilfoyl.The high school seniors have both led their prep teams — Turner at Land O'Lakes, Kilfoyl at Academy at the Lakes — to state titles. They're teammates on a national-championship travel ball team headquartered in Georgia. And both are headed to Southeastern Conference powers for the start of their college careers next summer.Now both have accepted official invites to participate in the 2019 USA Softball Junior National Team Selection Trials. Only 28 players, either high schoolers or college freshmen, were invited.Turner accepted via e-mail about a week before the official word came out, but still was nervous."I didn't want people to know (I was in the running) just in case I didn't make it," she said. "Then all of a sudden I kept getting all these 'congratulations' and then Lexi texted me 'Congratulations on your invite!.' "Kilfoyl has a little bit of a head start in general, having made the junior team two years ago. Both players will take part in the trials Dec. 28-Jan. 1 at Clearwater's Eddie C. Moore Softball Complex. Along with the invitees, others will pay to take part in open tryouts, adding to the competition mix for 20 spots.Those who make it get to play at the USA Softball International Cup. That group will be further culled to 17 who will compete in the Junior Women's World Cup next August in Irvine, Calif.Though Kilfoyl made the team before, she was an alternate at the time of the world championship. She did get a ring and medal, but wants more this time."I thought I was going to pitch a lot more than I did, but I was going up against girls that were pitching in the (last) World Series and stuff," she said.Like Holly Azevedo, who went 15-0 last year for UCLA, the No. 3 team in the country."Lot of competition. But I was okay with it. I knew I was the younger one. Definitely want to make myself a part of it this time," Kilfoyl said.But first, there's making the team and getting tuned up for the tryouts while neither their high school nor club teams are in season.Turner has been pitching to a dummy at an indoor facility near her house, but the big change has been in her fitness regimen. She works three times a week with a trainer. And it sounds like, whatever happens with the junior national team, Land O'Lakes' opponents should be even more worried."I already feel like I'm getting stronger," she said. "I never worked arms before, it was mostly focusing on legs and abs," she said. "I used to only do running for my cardio, but now I do the bike, the rowing machine, the sled. I do squats now, but I didn't really do them correctly because I'm not really flexible. That really helps with pitching, because the more flexible you are, the more loose you are, and you can really amp up your speed."In her past two seasons, Turner has racked up 34 wins, while striking out 501 batters while pitching 238 innings. She led the Gators to the 2017 state title against American Heritage, which won a rematch in the Class 6A final last year.Going the distance in a classic, mud-ridden 2A final, Kilfoyl and the Wildcats defeated Aucilla Christian 1-0. She went 23-1, striking out 249, and has 842 career strikeouts having begun with the AATL varsity as a seventh grader. She's also hit at least .450 each of the past four seasons with 17 career homers.As for what to work on leading up to tryouts, Kilfoyl again has more specific intel."Actually one of the coaches told me, when I was on the junior team, I needed more control of my pitches. I don't have a very strong riseball, so that's what my main focus is going to be this fall. We're slowly getting there," she said.She will drop basketball to focus solely on that pitch.And even though the friendship is close enough that they'll be holding a joint signing party in mid-November (Turner has committed to Tennessee; Kilfoyl to Alabama), there's only so much advice Kilfoyl can lend leading up to the trials."She's lucky because she knows what to expect, and I'm kinda nervous because I don't," Turner said.Turner is more right than she knows."The first time around, the night before, I had no idea what we were going to do. So I kind of freaked out, and I couldn't sleep that night," Kilfoyl said.Now, a Pasco County duo could make it, which would be quite something."It would be so big for Land O'Lakes (the city) in general," Turner said. "It's really cool, just to think where we were when we were younger. Land O'Lakes Little League, people that are there are amazing, and maybe something like this would help with a lot of interest. People from small towns like this can still end up in big places, which is really nice."