8:00 AM – 9:00 AM
Practice Swim
Location: Thornapple River Boat Launch (GRTri swim area)
Day before race day
Saturday, June 12, 2027
Practice swim, packet pickup, and Youth Duathlon timing carried from the authoritative 2026 event schedule; only calendar dates are updated.
9:00 AM – 12:00 PM
Packet Pickup (morning*)
Location: Ada Park Pavillion
*Super Sprint & Sprint distances only**Parking on-site
1:00 PM – 2:00 PM
Youth Duathlon
Location: Ada Park
3:00 PM – 5:00 PM
Packet Pickup (afternoon*)
Location: Ada Park Pavillion
*Olympic & Half distances**Parking on-site
Race day
Sunday, June 13, 2027
Race Day Timeline entries are carried unchanged from the authoritative 2026 schedule; only the calendar date is updated.
4:00 am
Roads Closed
5:15
Transition Area Opens
6:00-6:30 am
Pre-race Swim
6:30 am
Half Transition Closes
6:45 am
Half Course Meeting
7:00 am
Half Distance Races Start
7:15 am
Olympic Transition Closes
7:30 am
Olympic Course Meeting
7:45 am
Olympic Distance Races Start
8:00 am
SprintTransition Closes
8:15 am
Sprint Course Meeting
8:30 am
Sprint Distance Races Start
8:30 am
Super Sprint Transition Closes
8:45 am
Super Sprint Course Meeting
8:55 am
Super Sprint Start Distance Races Start
9:30 am
Swim Course Cut-off
10:00 am
Transition Opens for Athletes to Remove Gear
12:30 pm
Bike Course Cut-off
3:30 pm
Run Course Cut-off/Race Ends
4:00 pm
Roads Re-Open
Schedule source: current GRTri Schedule content under Tris4Health. The legacy schedule’s specific day-of-operation entries are presented here as the authorized transplant requested for this private 2027 page. Any additions beyond those entries still need source approval.
Related next step
Want a calmer walkthrough before race weekend? The First Timers page turns this plan into a simple first-race checklist.