# Indie 100 Cycling Challenge > The Indie 100 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://indie100.org - Surfaces: Premium paved multi-use rail corridors (Monon Trail, Nickel Plate Trail) and smooth rural county roads. ## Course Distances & Profiles ### 25 Mile Route (Community / Quarter Century) - Distance: 25.0 miles (40.2 km) - Route Summary: Rollout from 42nd & Monon Trail, travel north along the Monon Trail to 106th Street in Carmel. Cut east along 106th Street to intercept the Nickel Plate Trail. Head south on the continuous Nickel Plate Trail down to 42nd & Evanston Ave, then proceed west along 42nd Street back to the start. - Highlights: 100% paved, family-friendly, low-stress greenway connection with separated grade crossings. ### 62 Mile Route (100km Metric Century) - Distance: 62.0 miles (100.0 km) - Route Summary: Depart 42nd & Evanston staging grounds, cross-town link west to the Monon Trail, sustain a northbound pace through Carmel and Westfield up to the Boone-Hamilton County Line Road, head north into rural agricultural lanes toward IN SR 38, pivot southeast into historic downtown Noblesville to meet the Nickel Plate Trail, and hammer south on uninterrupted converted rail line back to 42nd & Evanston. - Highlights: Perfect metric century balancing protected urban greenways and fast open paceline flats. ### 100 Mile Route (Full Imperial Century) - Distance: 100.0 miles (160.9 km) - Route Summary: Follows the 62-mile route northbound, but continues north along the Boone-Hamilton County Line Road all the way to 296th Street (northern Hamilton County line). Turn east across open agricultural roads to State Road 19, head south along SR 19 down to SR 38, turn east on SR 38 into Noblesville to S 8th Street, south to Historic Pleasant Street, access the Nickel Plate Trail, and fly south through Fishers and Indianapolis to 42nd & Evanston Ave, then west back to the starting point. - Highlights: A true endurance century test featuring wind-swept rural county flats, historic river towns, and lightning-fast rail corridor sprints. ## Key Links & Resources - [Official Website](https://indie100.org): Landing page, registration updates, and event notifications. - [Route Breakdown](https://indie100.org/route.html): Complete sector breakdown, turn cues, and surface guides for all 3 courses. - [Full LLM Knowledge Base](https://indie100.org/llms-full.txt): Turn-by-turn routing, timing regulations, aid stations, and logistics. - [Universal Commerce Protocol](https://indie100.org/.well-known/ucp.json): Machine-readable registration tiers and event specifications. - [AI Plugin Manifest](https://indie100.org/ai-plugins.json): Agent integration specifications.