Our Coaches
Beatrice Sims-Mackie
Program Director & Girls Head Coach
Beatrice has been coaching at WW since the fall of 2024. Since discovering rowing as a college walk-on at Brown, she has gone “all-in” on the sport! She has coached masters, youth, and collegiate athletes, and worked as a software developer for Concept2. Beatrice’s favorite part of coaching is seeing it “click” for an athlete, whether it’s making a technical change or realizing that they’re stronger than they think.
Catherine Chappell
Boys Head Coach
Catherine believes in creating a safe and productive space where athletes can push their athletic boundaries. She began rowing at Wayland Weston after playing soccer, basketball, and being a competitive swimmer. She was recruited to Northeastern and has now been rowing for 18 years. She is highly skilled in boat repair and can fix pretty much any problem with a boat. She has been an integral part of the Wayland Weston varsity boys success from 2022 to 2025 highlighted by multiple States wins, boats sent to nationals every year, and a bronze medal at nationals in the men’s pair in 2025. The past year she coached at another high school as the boys varsity coach and program director, culminating with multiple medals at states in sweep and sculling events, and a u17 double that went to nationals and placed well above their seed. She has coached all age ranges, from middle school to masters. She’s looking forward to building on Wayland Weston’s success and to continue learning and sharing the sport with anyone she can.
Bob Sheetz
Varsity Girls Assistant Coach
Bob grew up in Belmont and started rowing in the ninth grade at Belmont Hill School and at Cambridge Boat Club. He rowed competitively for 15 years and has coached at Tufts, Northeastern, Bermuda Rowing Club, Belmont Hill School, Cambridge Boat Club, Greater Lawrence Rowing, Gordon Rowing Association, and Community Rowing. He started the Tufts crew program and was the first Rowing Director at Community Rowing. At Cambridge Boat Club, he was involved with the early Head of the Charles Regattas, served on the Board, and was chairman of the rowing committee for several years. In Bermuda, Bob was the Director of Rowing for the Bermuda Rowing Association. His experience includes the development of rowing programs, fundraising, volunteerism, budgets, and regulations.
In 2017, Bob received his Advanced Certificate in Rowing Leadership after completing an intensive one-year coaching education program at the Institute for Rowing Leadership.
Crista Graves
Varsity Boys Assistant Coach
A former Division I soccer player, Crista didn’t discover rowing until after college while living on the Cape. A group of moms noticed she looked athletic and asked if she wanted to learn to row—and she’s never looked back. She immediately fell in love with the harmony, balance, and rhythm of the sport.
After moving to Seattle, Crista continued rowing and learned to scull, with a special love for rowing a single. She began coaching in learn-to-row programs and later helped found a girls’ learn-to-scull and sculling program. Over the years she has coached everything from beginner rowers to competitive team boats, along with private sculling lessons.
Dave DeIuliis
Varsity Boys Assistant Coach
Dave brings with him nearly four decades of passion and experience in the sport of rowing. Since 1986, he has dedicated himself to developing athletes both on and off the water.
Throughout his coaching career, Dave has guided junior and collegiate rowers at Assumption University, Franklin Pierce University, Johnson & Wales University, Hingham High School, and Bromfield–Acton-Boxborough. Beyond coaching, he is a skilled boatbuilder at Peinert Boat Works, where he crafts high-performance racing shells used by competitive crews.
Ellie Myatt
Novice Boys Coach
A Boulder, Colorado native, Ellie grew up with a love for all things mountain-related—especially trail running and mountain biking. She rowed for a small club in Colorado before competing for Colgate University’s varsity program, and discovered her passion for coaching while working with her high school club during college.
What does Ellie love most about rowing? The community. She believes there is nothing quite like the bond created by putting in the hard work alongside your teammates. She also places a strong emphasis on the mental side of the sport—building resilience, teamwork, and the mental toughness that athletes can carry with them far beyond the boathouse.
Sandra Cardillo
Novice Girls Coach
Coach Sandra was part of the WW coaching staff from 2019 until the start of COVID, working with our Novice Boys. She has been coaching since 2011, most recently as Assistant Coach and Interim Head Coach at Simmons, working with both novice and varsity women. She has also coached at Watuppa Rowing Center and internationally with high-performance para-rowing crews.
Sandra loves helping athletes fall in love with rowing and preparing them for wherever the sport can take them.
Patti Orlando Tillotson
Middle School Coach
Patti learned to row in 2009 and has been racing ever since with the Quinsigamond Rowing Club Masters. She’s a 2-time Head of the Charles medalist, including a win in 2025
Recently retired from teaching elementary and middle school, Patti loves to share her love of rowing with our youngest athletes.
Steve Mascioli
Masters Coach
Steve’s rowing story started on Cape Cod, where summers spent in dinghies sparked a lifelong curiosity about the sleek shells gliding along the Charles River.
After learning to scull as a young adult, life and career pulled him away from the water—until he rediscovered rowing in 2018 with WWRA’s Adult Program. Since then, Steve has been all in: rowing, coaching novices, guiding adults in Learn to Row and Masters programs, and even serving on our Board of Directors.