Coaches

Sharing Our Passion

Our coaching staff is dedicated to sharing their love, experience, and knowledge about the game with each player that comes through the program. Not only do our coaches focus on fundamentals, they also enforce a hard working attitude, a team mindset, and leadership skills. Learn more about our coaches below!

 
 

RENNIE TANKERSLEY

Varsity Head Coach

Rennie began playing lacrosse at the age of 7 in Parkton, Maryland. After graduating from Hereford High School in 2012, Bucknell University recruited her to play Division I lacrosse. Rennie played low defense and lead her team to the Patriot League Conference tournament by her senior year, in 2016. Rennie graduated from Bucknell with a chemical engineering degree and began her career in Albany, NY. She immediately expressed her interest and energy in coaching girls lacrosse. Rennie coached with Bethlehem High School in 2017 and two ADK Club teams, in Saratoga Springs, NY. She couldn’t help but recognize that moving to Colorado would allow her to continue teaching the greatest sport and leading young women to become better players and better versions of themselves. Rennie is thrilled to have the opportunity to coach with Columbine High School.

Kelly Kershisnik

Assistant Varsity Coach

This will be Kelly's fifth year as an assistant coach for Columbine. Kelly began playing lacrosse when she was in fourth grade, and continued on through Columbine. In college she coached youth programs for girls and boys and attended CSU. As an alumna of the Columbine lacrosse program, Kelly brings a deep-rooted connection to the team's traditions and a passion for the sport. Beyond the lacrosse field, Kelly also serve as the school social worker, emphasizing the importance of holistic development for our athletes. This dual role allows her to support and guide the team both on and off the field, fostering a well-rounded and resilient group of student-athletes. Kelly has a tremendous love for the Columbine community and this program.

Bailey Delasantos

JV Head Coach

Bailey's Bio to come!