Head Coach

Paul Eure-Lead 11-12 Coach

Paul began coaching in 1983 as an Assistant coach to Lonny Kerman at the North Side Otters.  He has been coaching ever since at all levels of swimming: club for 31 years (20 as a head coach), high school for 34 years (31 as a head coach), college (2 years as head coach at Augustana College, Rock Island, IL), masters/triathlon 12 years.  Paul currently is the head high school coach at Dowling for girls and assistant coach for boys.  

Paul's family includes a loving and supporting wife, Mary, 6 children, one who swam four years in college (Luke at MIT), two who are currently swimming in college (Maria at Grinnell, Maggie at Florida Tech), two currently swimming in high school (Andy at Valley, and Molly at Dowling), and Veronica-12 who swam with Riptide this past winter.  

Paul's practices are a balance of challenging the swimmers while emphasizing the fun aspects of competition and athletics.  

Paul graduated from DCHS, class of 1983, lives in West Des Moines and is a member of Sacred Heart Parrish.



Coach Ann Peterson-Lead Intro Coach

Coach Ann is a familiar face around the Dowling pool.  She is a former Riptide coach (2016-2018) and managed the Dowling summer swimming lesson program for several years.  She is excited to be back on deck, returning to coaching after the 3 year break! 

Ann grew up swimming at Wakonda Country Club and lettered her freshman year at Dowling.  After that season she realized her passion was not in competition but in teaching others to love the water.   Since then, she has taught all ages from baby and me classes to adult learn to swim with a few group exercise classes too.

Ann is always ready to hop in and work with kids, especially her own.  In addition to swimming she has coached her kids in volleyball and basketball.  She enjoys working to develop skills in young kids and watching the lightbulb turn on.  Her coaching style is loud and cheerleader-like, inspired by a Johann Wolfgang von Goethe quote, "Instruction does much, but encouragement does everything."         

Ann wants everyone she coaches to be a swimmer for life. She still swims as often as she can, teaches lifeguard classes, and also teaches lifeguard instructor classes.  Some of the high school aged swimmers may have been lifeguard certified by Ann or might have her husband Lance as their DCHS Spanish teacher.







Coach Luke Halsch-Lead 10 and Under Coach

Luke has been coaching and teaching swimming for 13 years. In fact, his coaching career started here at Riptide, when the club was first established.  He am currently a assistant coach for both Dowling Catholic Girls and Boys swim programs.  During his coaching career he has worked with many wonderful athletes whose skills ranged from college level swimmers to kids that swim like rocks. From 6 months old to 68 years old and everywhere in between.  Luke enjoys the sport of swimming but loves to watch the development and confidence grow even more.






Coach Mike Foley-Lead Senior (13 and Over)

Mike is a Des Moines native who began swimming  years ago for  the Greater Des Moines Swim Club (pre-DMSF and CIA) then Des Moines Roosevelt High School before going to Iowa State University. He continued to help coach at GDMSC and teach swim lessons and competitive swim clinics. 

He later became involved with the Edina Swim Club in Minnesota where his daughters swam. Mike also swam in their masters swim program. 

Mike lives in Des Moines with his wife Jennifer. He has three adult children. Daughters Meghan and Molly who both swam for Dowling Catholic, and a son, John, who went to Roosevelt…all live in the Des Moines area. Mike is also excited to watch his granddaughter, Molly, swim for the Riptide!






Coach Patty Spahr

Patty Spahr is a Bettendorf native and started swimming with the Pleasant Valley Stingray Team when she was 7.  Head Coach Paul Eure was Patty’s age group coach for several years so she’s excited to work alongside him on the Riptide coaching staff!  Patty went on to swim at Bettendorf High School and for D1 Boston College.

Patty coached for Riptide in 2016-2018 and stepped away when her first daughter was born.  Patty is married to her husband Kyle, has 2 young daughters, Sunny and Caroline, and works fulltime in Sales at Athene in WDM.

Patty is thrilled to be back on the pool deck. She loves coaching stroke development and technique, and pace workouts are her favorite! Patty predominantly raced the 100 + 200 free and loves the skill that goes into training for the IM events. Patty strives to keep swimming fun while allowing kids to flex their competitive muscles.  If you put your mind to it, you are truly capable of anything! 







Coach Leo Duffy


Leo swam for Riptide for three years in middle school. He then swam for the Dowling High School team, and rejoined Riptide in the summer his last two years. 


Leo’s Favorite Events: 100 Butterfly and 50 Freestyle.


After being a team captain his senior year and going to college, Leo was looking forward to getting back into swimming through coaching. He’s happy to be back at Dowling with Riptide to help swimmers give 100% effort and accomplish their goals.







Coach Stephanie Tiefenthaler


Steph was a part of the Bett Swim Club from ages 5-18 and was a Varsity swimmer for Pleasant Valley High School as well as being a Captain her senior year. She was a swim teacher and lifeguard while attending the University of Iowa for Recreation Therapy.  After college she continued to teach swim lessons to adults and children and helped to coach the 8 and unders for Pleasant Valley Stingrays for a season. She loves swimming and her heart has always been a part of the swimming world.






Coach Shannan Schoening

Shannan began swimming competitively at the age of 9 and trained with clubs in Bettendorf and Pleasant Valley, IA. She won four team high school state championships with the Bettendorf Bulldogs, earning All American honors. She swam for the Truman State Bulldogs for two years in college and earned bachelor degrees in biology, chemistry and nursing. Shannan now practices as a nurse anesthetist in the Des Moines metro area. 

While typically sticking to 100 or 200 freestyle, Shannan’s greatest swimming accomplishment was completing a 5k swim race in the ocean in Miami. 

Shannan’s hobbies include running with her dog Dexter, traveling for destination half marathons, yoga, reading and gardening. She resides in Clive, IA.