TriMillennium is a sprint and olympic distance triathlon, duathlon, and aquabike race hosted in the beautiful Millennium Park, located on the west edge of Grand Rapids.  TriMillennium is one of the local favorites for the West Michigan multi-sport community.

Located on the edge of Grand Rapids, TriMillennium is easily accessible with ample parking at the park.  Athletes and spectators alike will enjoy this race.

Whether you are a brand new athlete, or a seasoned veteran, TriMillennium is a great race for you.  The shallow waters of Millenium Park offer pleasant and calm water.  And our flat a fast bike and run courses make TriMillennium a great option for your “A” race, your first race, or anywhere in between.

For our more experienced athletes we will offer an open start wave that will send off several minutes before the rest of the pack.  This wave is meant for experienced triathletes that want to compete with others of similar ability without interfering with the newer athletes.  There is no cost to participate, just respond accordingly during registration.  Please use discretion when considering if this is for you.

Injured and can’t run?  No worries!  TriMillennium includes an aquabike option for both distances.

Terrified of the swim? Good news for you… we also have a dualthlon for our sprint and olympic distances.

Have a few of you that want to participate together.  Great!  Relay options are also available.  Racing is always more fun with friends. There really is not a good reason NOT to do this race!

Sign up today.

Supporting local youth

to become future leaders

The Millennium Triathlon owned and managed by Bridge Street Ministries, a Christ-centered, inner-city youth ministry that works to disciple, equip, and empower under-resourced youth from the West Side of Grand Rapids.  Proceeds from TriMillennium go to help us accomplish that mission.  Learn more at

Race History

TriMillennium is back for its 13th year.  What started out as a sprint triathlon has grown into a local favorite with sprint and Olympic distance races.  We are excited to be back!!!