We’ve been doing some research and we’ve not been able to find a ride like Dusk to Dawn anywhere in the US. We're surprised by this. we’ll keep looking; if anyone knows of a similar kind of ride, please let us know.

Key defining characteristics of the Dutodari:

Timing - Only In the Dark: We leave at sunset and wrap up at sunrise. There are many 24-hour races and 1,200k rides, but none I can find that only roll in the dark. Every 12-hour race I can find takes place in daylight.
Mixed Terrain: Paved roads, dirt roads, singletrack, goat paths. The Dutodari is about 50% pavement with the rest a mix of all types of dirt. The closest types of night rides I can find are pure mountain bike or pure randonee. No ride can I find has every type of terrain.
Route: The Dusk to Dawn route is one big loop. Most 24-hour races are laps - often of about an hour or so - designed for teams, safety, and overall ease of management. We at the Dutodari like to make everything difficult to manage, therefore one large loop is the prescription.
Riding the Full Distance: Many overnight organized offroad races are designed for teams that take turns on laps. In this case, with on laps, each rider tests solo mettle.
Well Supported: We have three well stocked food stops planned. We also have an emergency vehicle on the course for safety.
Dusk to Dawn is a ride. The closest corollaries I can find are races or timed events. Dutodari is a ride where the only clock is the sun’s movement under you and your own personal goals.