Three signature circuits connecting Central Indiana's premier rail corridors and open country roads. Select a course below to explore sector breakdowns.
Roll out north from Monon Trail & 42nd Street onto the continuous paved Monon Greenway. Cruise north past Broad Ripple, Marott Park, and northern Marion County into Carmel over dedicated grade-separated trail bridges to 106th Street.
Turn East on 106th Street utilizing wide, protected multi-use sidepaths and the dedicated White River connector bridge to complete the lateral connection to the Nickel Plate Trail.
Intercepting the continuous paved Nickel Plate Trail, riders cruise south through Fishers and northern Indianapolis down to the southern trailhead terminus at 42nd & Evanston Avenue.
Exit NPT at 42nd & Evanston Ave, riding the final sector west along 42nd Street back to Monon Trail & 42nd Street to cross under the official finish timing arch and complete the 25-mile community loop.
Heads north along the continuous Monon Greenway into Westfield, incorporates a 4-mile calibrated pacing spur toward Grand Park to lock in exact distance, transitions seamlessly eastbound along the grade-separated Midland Trace Trail across central Hamilton County directly into Noblesville, joins the Pleasant Street Multi-Use Trail Corridor, and sprints straight south on the uninterrupted Nickel Plate Trail (NPT) back into Indianapolis.
Depart Monon & 42nd Street, pacing through Broad Ripple, Carmel Arts & Design District, Midtown Carmel, and into Westfield along the continuous grade-separated paved rail trail corridor.
Out-and-back spur along the Monon Greenway extension toward Grand Park in Westfield to calibrate exact metric distance before making the eastbound turn.
Turn East directly onto the Midland Trace Trail. Clean, car-free greenway connecting Westfield across central Hamilton County to Noblesville, completely avoiding SR 32 traffic.
Cross through Noblesville via the grade-separated multi-use paths and pedestrian underpasses, directly intercepting the northern trailhead of the Nickel Plate Trail at Pleasant Street.
Direct rail-trail run south from Noblesville through Fishers to 42nd & Evanston Avenue along the continuous, flat converted railway corridor.
West along 42nd Street to the finish line arch and chip-timing gantry at Monon & 42nd Street to conclude the 100-kilometer metric century.
Features low-traffic, paved county grid corridors across northern Hamilton County. After reaching the northernmost turn at 296th Street, riders shift east to Anthony Road, 256th Street, and DeVaney Road, track south along Cumberland Road past historic Potter’s Bridge Park, and enter the Nickel Plate Trailhead via the grade-separated Pleasant Street multi-use underpass.
Roll out north from Monon & 42nd Street. Continuous grade-separated paved trail through Broad Ripple, Carmel Arts & Design District, Midtown Carmel, and Westfield to the northern trailhead at 216th Street.
Transition onto Boone-Hamilton County Line Road heading north. Long, wide-open farm straights to the northern county boundary at 296th Street.
Turn East on 296th Street. Open agricultural blacktop across northern Hamilton County to Anthony Road.
Turn South on Anthony Road, East on 256th Street, and South on DeVaney Road / 236th Street to Cumberland Road. Rolling country lanes, minimal cross-traffic, and expansive sightlines.
South on Cumberland Road past Potter’s Bridge Park, linking into the White River Greenway path and the new Pleasant Street multi-use corridor.
Enter the Nickel Plate Trailhead at Pleasant Street. High-cadence, unobstructed straight-line run south through downtown Fishers into Marion County down to 42nd & Evanston Avenue.
Exit NPT at 42nd & Evanston Avenue. Ride west in a dedicated, coned lane along 42nd Street to the official finish arch and celebration hub at Monon & 42nd Street.
Given August heat conditions, all aid stations will supply Hammer Nutrition products, bulk ice water, electrolyte drink mix, chilled fresh fruit, basic mechanical repair triage, and emergency first aid medical kits.
| Station | 100M | 62M | 25M | Location / Facility | Logistics & Provisions |
|---|---|---|---|---|---|
| Start / Finish | 0.0 / 100.2 | 0.0 / 62.2 | 0.0 / 25.0 | Monon & 42nd St (Event Hub) | Full mechanical support, hydration, medical triage, post-ride celebration meals |
| Rest Stop 1 | Mile 14.8 | Mile 14.8 | Mile 10.5 | Midtown Plaza Carmel | Restrooms, quick hydration top-off, mechanical triage, ice water |
| Rest Stop 2 | Mile 28.5 | Mile 25.1 | — | Monon Trailhead / Grand Park Spur | Hammer Nutrition electrolytes, energy gels, ice drop, high-volume pump station |
| Rest Stop 3 | Mile 52.0 | — | — | 296th St & Anthony Rd (Church Lot) | Major lunch/nutrition stop, shaded misting tent, ice replenishment, hot food |
| Rest Stop 4 | Mile 74.0 | — | — | Potter's Bridge Park (Cumberland Rd) | Shaded pavilion, cold hydration refill, sunscreen station, tire repair |
| Rest Stop 5 | Mile 81.0 | Mile 37.0 | — | Noblesville Pleasant St Trailhead | Convergence stop: ice towels, cold water, snacks, nutrition top-off |
| Rest Stop 6 | Mile 92.5 | Mile 48.5 | Mile 14.0 | Fishers Nickel Plate Amphitheater | Final hydration top-off, medical station, SAG sweep checkpoint |
The course architecture shifts routing entirely off state highways onto municipal park trails and paved county roads, coordinated across Hamilton County Highway Department, City of Westfield Parks, City of Carmel Parks, City of Noblesville Parks, City of Fishers Parks, and City of Indianapolis / IMPD.
To prevent crowding recreational trail users and optimize course pacing, riders are released in disciplined waves based on target average speeds.
Volunteer check-in, mechanic pit open, and day-of packet pickup at Monon & 42nd St Event Hub.
Wave 1 (07:00 AM): 100M Century (75 riders / 3 min).
Wave 2 (07:45 AM): 62M Metric (75 riders / 3 min).
Wave 3 (08:30 AM): 25M Community rolling departure.
02:00 PM: Northern rural loop sweeps close (Anthony Rd & 296th St).
04:30 PM: Nickel Plate Trail sweep closes at 42nd & Evanston Ave.
Course officially closes; timing cut-off enforced; Finish Line festival celebration concludes.
The event date is set for Saturday, August 21, 2027. With the exception of this confirmed date, all operational aspects of the INDY100SM—including all rides, course routes, distance profiles, trail corridors, road alignments, elevation data, event schedules, staging times, wave launch protocols, course cut-offs, rest stop & aid station placements, Hammer Nutrition provisions, and roving SAG patrol support—are tentative and subject to acts of God, severe weather, municipal permitting requirements, public safety authority directives, road construction, change, alteration, or cancellation until the successful completion of the event.