# INDY100 Cycling Challenge > The INDY100 is Central Indiana's premier chip-timed endurance cycling event held on Saturday, August 21, 2027. Featuring three distinct routes—a 25-Mile Community Loop, a 62-Mile (100km) Metric Century, and a 100-Mile Imperial Century—the event links world-class paved greenways (the Monon Trail and Nickel Plate Trail) with open rural highway sectors across Marion, Hamilton, and Boone Counties. ## Event Details - Date: Saturday, August 21, 2027 - Location: Indianapolis, Indiana (Staging at 42nd & Evanston Ave / 42nd & Monon Trail) - Registration: Opening early 2027 at https://indy100.org - Surfaces: Premium paved multi-use rail corridors (Monon Trail, Nickel Plate Trail) and smooth rural county roads. ## Course Distances & Profiles > General Operational Notice: The event date is set for Saturday, August 21, 2027. With the exception of this confirmed date, all operational components—including rides, course routes, distance metrics, schedules, aid stations, Hammer Nutrition fuel, and SAG patrols—are tentative and subject to acts of God, severe weather, municipal public safety directives, emergency road construction, change, alteration, or cancellation until the successful completion of the event. ### 25 Mile Route (Community / Quarter Century) - Distance: 25.0 miles (40.2 km) - Route Summary: Rollout northbound directly from Monon Trail & 42nd Street, traveling north along the Monon Trail to 106th Street. Turn east on 106th Street utilizing protected sidepaths and the White River connector bridge to intercept the Nickel Plate Trail. Head south on the continuous Nickel Plate Trail down to 42nd & Evanston Ave, then ride the final sector west along 42nd Street back to the finish line at Monon & 42nd Street. - Elevation: +350 ft - Highlights: 100% paved, family-friendly, low-stress greenway connection with separated grade crossings. ### 62.1 Mile / 100km Metric Century ("The Midland Trace & Rail Loop") - Distance: 62.2 miles (100.1 km) - Elevation: +1,050 ft - Route Summary: Rollout northbound from Monon & 42nd Street through Broad Ripple and Carmel to Westfield (including a 4-mile calibrated pacing spur toward Grand Park). Branch east directly onto the grade-separated Midland Trace Trail across central Hamilton County to Noblesville. Connect through the Pleasant Street Multi-Use Trail Corridor tunnels directly into the Noblesville Nickel Plate trailhead, sprint south on continuous converted rail corridor through Fishers to 42nd & Evanston Ave, and ride west along 42nd Street to the finish line at Monon & 42nd Street. - Highlights: Nearly 100% traffic-separated, car-free circuit across central Hamilton County. ### 100-Mile Imperial Century ("The Rural Grid & Potter's Bridge Bypass") - Distance: 100.2 miles (161.3 km) - Elevation: +1,780 ft - Route Summary: Rollout northbound from Monon & 42nd Street along the Monon corridor through Carmel and Westfield to 216th Street, continuing north along Boone-Hamilton County Line Road to 296th Street. Turn east on 296th Street, then south onto Anthony Road, east on 256th Street, and south on DeVaney Road / 236th Street to Cumberland Road. Track south past historic Potter's Bridge Park and into the White River Greenway, connect through the Pleasant Street trail underpass directly into the Nickel Plate Trail, sprint south through Fishers to 42nd & Evanston Ave, and ride west in a dedicated, coned lane along 42nd Street to the finish arch at Monon & 42nd Street. - Highlights: Low-traffic, paved county grid corridors, wide open sightlines for double-pacelines, scenic river parkway, and grade-separated trail underpasses. ## Key Links & Resources - [Official Website](https://indy100.org): Landing page, registration updates, and event notifications. - [Route Breakdown](https://indy100.org/route.html): Complete sector breakdown, turn cues, and surface guides for all 3 courses. - [Full LLM Knowledge Base](https://indy100.org/llms-full.txt): Turn-by-turn routing, timing regulations, aid stations, and logistics. - [Universal Commerce Protocol](https://indy100.org/.well-known/ucp.json): Machine-readable registration tiers and event specifications. - [AI Plugin Manifest](https://indy100.org/ai-plugins.json): Agent integration specifications. ## Official Contact Directory - General Inquiries: info@indy100.org - Participant Support: support@indy100.org - Registration & Transfers: registration@indy100.org (or registeration@indy100.org) - Press & Media Credentials: media@indy100.org - Waiver Submissions: waiver@indy100.org