Harrier Fall XC Coaches
John Darrow
Coach Darrow has coached the boys and girls cross-country and track teams at Notre Dame School in Clarendon Hills since 2009. Ten of his Notre Dame cross-country teams have qualified for the IESA State Championship meet, winning multiple State trophies. Notre Dame has placed in the top ten teams in State on six occasions, including two IESA State Championships. He has also coached 17 individual qualifiers for the State meet. His teams have won four IESA Sectional Championships. Notre Dame competes in the Suburban Parochial League (SPL). During Coach Darrow’s tenure, his teams have won 16 SPL XC Championships and 15 SPL Track Division championships. On the individual level, he has coached one individual IESA State Champion, 14 All-State runners, 12 SPL XC individual champions, and 8 SPL Track Athletes of the Year. In 2020, Coach Darrow received the ITCCCA Distinguished Middle School Coach Award, a lifetime achievement recognition awarded by the Illinois Track & Cross Country Coaches Association.
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Jeannie Sullivan
Jeannie has been a competitive runner on the track, roads, and cross country for over 30 years. Her love of running began in middle school in southeastern Michigan by default when she got cut from the basketball team but then broke the gym class 8th grade mile school record. In high school, she quickly became one of the top cross country runners in the State and competed in all track distance events. She continued her career at the University of Michigan earning a 2nd team All-Big Ten Conference award in XC and academic All-American awards in indoor/outdoor track and XC, ultimately finishing her collegiate career in 2002 as XC team captain with a team Big Ten Conference Championship, regional team runner-up, and top 15 team placement in the NCAA. She continued sub-elite post-collegiate road racing for the Impala Racing Team in San Francisco and now DW Running in Chicago where a recent highlight was placing 4th in the State of Illinois in the 2018 Chicago Marathon.
Steve Driscoll
Coach Driscoll teaches 7th grade ELA and has coached the girls and boys' cross country teams at Gurrie Middle School in La Grange since 2006. Gurrie joined the IESA in 2011 and has since coached eleven state qualifying teams, ten All-State finishers, and won four State trophies in the past five years. His approach is to “teach the sport and coach the person”. Culture, teamwork, and progress are the foundation of his philosophy with a focus on fun. He believes that cross country training is the groundwork for all sports and encourages young athletes to embrace stamina, speed, recovery, strength and nutrition training for life-long health.
Josh Vance
Coach Vance teaches Art and coaches the boys cross country / track & field teams at Westview Hills. The boys cross country team has qualified for state 12 years in a row. They won their first state championship in 2024 and finished as state runner-up in 2025. Coach Vance ran competitively in middle school, high school, and college and feels fortunate that many of his college running teammates are also coaches in the suburbs. His coaching focus is teaching our young runners to set goals and help them work towards achieving them. Mental toughness and sportsmanship are prioritized during our season. We have created a team atmosphere where every runner feels welcome and prepared to succeed while having fun and learning a new sport.
Audrey Borling
udrey is thrilled to join the Harriers coaching staff. Coach Borling currently teaches and coaches cross country at Gurrie Middle School in La Grange. She discovered her love of running and racing at Downers Grove North High School, then competed for Indiana University in both cross country and track. While at Indiana, Coach Borling earned All-Big Ten honors in cross country, and was a Big Ten champion and All-American in the 3000-meter steeplechase on the track, where she also competed in the 1500 and 5000 meters. She has run several marathons and half-marathons post-collegiately and has hopes of running another marathon in the future. Her passion is now coaching young athletes to foster their love of this incredible sport and build relationships with teammates!
Diana Crumrine
Coach Crumrine is a USATF Level 1–certified coach with more than two decades of experience coaching cross country and track & field at the middle school, high school, and collegiate levels. Diana has led teams to Conference Championships at North Central College and Barrington High School and helped guide Barrington to a 2nd place Team trophy at the IHSA State Track & Field Championship in 2008. Her athletes have earned State top 16 finishes, State titles, State records, National meet appearances, school records, and NCAA National qualifying marks across sprints, hurdles, relays, and distance events. As an athlete, Diana set school records at Barrington High School and North Central College, including the 300m hurdles, the Distance Medley Relay, and the indoor 200m hurdles, which still stands today. Diana is a former MSL Conference Champion, IHSA 9th place State Finalist in the 300m hurdles, three‑time CCIW Champion, four‑time NCAA National Qualifier, and team captain both at Barrington and NCC, where she later returned as North Central’s first‑ever Graduate Assistant Coach for the Women’s Cross Country and Track and Field programs. Diana currently teaches at Holy Trinity Catholic School, where she coaches Cross Country, Volleyball, and Track & Field. She founded the school’s Cross Country program in 2012 and has since coached an SPL Conference Champion and two State qualifying athletes, one of whom is her daughter. Diana returned to competition herself in 2023 as a USATF Masters athlete, earning All American and National Champion honors.
Ryan Jaskiewicz
Ryan Jaskiewicz brings a wealth of experience and passion for running to the West Suburban Harriers. His running journey began earnestly in 2007 with the Chicago Marathon, and he has since participated in well over 15 marathons, including a personal best of 2:26 in Berlin in 2022. Ryan’s dedication to the sport is evident in his personal records, with a 5K best of 15:07 and a half marathon time of 69:17. In 2024, he won the USATF Masters Indoor National Championship in the 3000m with a time of 8:56, achieved at age 40. He continues to compete and improve with the DWRunning Elite Team.Ryan focuses on fostering a supportive team environment, emphasizing consistent training, proper technique, and mental strength. His goal is to help each athlete achieve their personal best while developing a lifelong love for running. Outside of his running achievements, Ryan is a devoted father of three and the founder of a finance company. He is eager to share his knowledge and enthusiasm with the West Suburban Harriers, inspiring and guiding young runners on their athletic journeys.
Kate DeProsperis
Kate has been an active figure in the Illinois running community for more than 30 years as both an athlete and coach. Kate competed for Lyons Township in both cross country and track and field, earning All-State and Junior Olympic All-American honors through the 4 x 800 meter relays. She ran cross country and track and field at the University of Notre Dame focusing on middle distance. She sought further running challenges, and after college signed up for a marathon. Over the span of 20 years of post-collegiate road racing, Kate gradually dropped over an hour from her debut marathon and qualified for her first U.S. Marathon Olympic Trials in 2012 in Houston, TX. Kate was the only Illinois woman to compete at the 2012 Olympic Marathon Team Trials. After taking a hiatus to have children she came back to run two more Olympic Trials Qualifiers and competed in the 2020 U.S. Marathon Olympic Trials in Atlanta, GA, as a mom and masters runner (over 40 years old). Kate has retired from competitive running and takes joy in coaching athletes using her experiences to help others achieve their running goals. Kate has more than 10 years of coaching experiences and carries USATF Level 1 Run Coach and SafeSport Certifications.
Peter Soung
Peter began running in 2009, embracing the journey as an adult-onset runner. Over the years, he has developed a passion for endurance events, completing 14 marathons along with numerous half marathons, 10Ks, and 5Ks. In the past five years, Peter has taken a more focused approach to training, working with coaches from Microcosm Running to enhance performance and achieve personal goals. This dedication has not only improved his own running but also deepened his understanding of effective training methodologies. Peter has discovered both personal and professional benefits through running and is eager to help others tap into these same rewards. He is an active member of the Chicago running community, regularly volunteering at local Parkrun events and major Chicago races. He's currently exploring a leadership role within the Chicago Area Runners Association (CARA). Outside of running, Peter is a co-founder of Sprout Social, a public software company based in Chicago, and a proud dad of two daughters.
Grace Mayer
Grace embarked on her running journey at Lagrange Highlands and continued her athletic endeavors at Lyons Township High School, where she excelled in both cross country and track. Notably, she was among the first female competitors in the Distance Night Special Olympics held in Palatine. Currently, Grace is committed to coaching cross country at Gurrie, where she has gained valuable insights into the sport through her work at Peak Running. She is currently employed at Lagrange Highland, where she contributes to their early childhood program. Her passion lies in coaching young athletes, nurturing their love for this remarkable sport and fostering camaraderie among teammates!
Sophie Abitz
Sophie attends Hinsdale Central where she competes on the cross country and track teams. Sophie joined the West Suburban Harriers in 6th grade and has participated every year since. She is a graduate of Clarendon Hills Middle School, where she ran both track and cross country. Sophie is super excited to be back coaching this year!
Isabella Chimedragchaa
Isabella attends Hinsdale Central where she competes on both the cross country and track team. She started her running journey with cross country since 6th grade at CHMS as well as track since 7th, in addition to being a former Harrier. She is excited to be able to coach the Harriers this summer!
Kathy Gu
Kathy attends Hinsdale Central High School. She has been participating in both cross country and track since middle school, and she will be on the Varsity track team and Junior Varsity cross country team this year. Kathy loves cheering on her teammates during meets, and can’t wait to do the same for the Harriers runners!
Claire Sigmund
Claire is a junior at Nazareth Academy where she is a member of both the XC and track teams. She started her running career in middle school and currently holds the 400m school record at Clarendon Hills Middle School. Claire was a member of Nazareth’s 4x800m state qualifying relay in 2024 and was a qualifier at both the Illinois Indoor Championships and the IHSA state meet in the 400m in 2025. Claire is excited to coach with the Harriers!
Conrad Sigmund
Conrad Sigmund attends Hinsdale Central where he is a member of the track team. A former Harrier, Conrad participated in XC and track at CHMS where he started focusing on sprinting. He is excited to join as a coach this summer!
Natalie Sullivan
Natalie attends Hinsdale Central where she has competed on the cross country and track teams. She is also on the JV Basketball Poms team and is in her 7th year of competitive dance at Impact Dance studio. This will be Natalie’s 3rd summer coaching with the Harriers program and she can’t wait to reunite with the kids!