John Mosey

Athletes first. This simple statement guides every decision. Our commitment is to make every participant's race experience the best it can be. That’s why, since 2011, Tris4Health has been a leader in the endurance event space. What started with two races has now grown to twenty across Michigan (and now into Indiana). We offer a wide range of events, from national championship triathlons to gravel, road cycling, mountain biking, and running, trail, and youth events. We’re best known as the organization behind: • Grand Rapids Triathlon • Michigan Titanium • Grand Rapids Gran Fondo • The Dirty Mitten Gravel Triathlon • Waterloo G+G Gravel Bike Race • Grand Haven Triathlon • Armed Services Marathon We strive to impact the communities in which we operate. That’s why many of our events support or directly benefit local and national charitable organizations. In 2024 alone, our events raised a quarter of a million dollars through fundraising or direct donations. And we are just getting started. Whether someone is looking for 5Ks or a 140.6-mile ultra triathlon, we have something for everyone, and we're dedicated to making it an unforgettable experience.