2,745 miles from Banff to Mexico. The longest mountain bike time trial on earth. Self-supported. Unsupported. Unforgetta
350 miles of Kansas limestone hell with zero aid stations. The ultimate test of whether you actually like riding bikes o
| Tour Divide | Unbound XL | |
|---|---|---|
| COURSE PROFILE | ||
| Length | ||
| Technicality | ||
| Elevation | ||
| Climate | ||
| Altitude | ||
| Logistics | ||
| Adventure | ||
| EDITORIAL ASSESSMENT | ||
| Prestige | ||
| Race Quality | ||
| Experience | ||
| Community | ||
| Field Depth | ||
| Value | ||
| Expenses | ||
Tour Divide scores 3 points higher overall (94 vs 91), but the right choice depends on what you value most.
"The longest mountain bike time trial on earth—2,745 miles from Banff to Mexico, completely self-supported, pure amateur ethos."
"The longest gravel race that matters, where the Flint Hills strip away everything but what's left of your soul."
Tour Divide rates as the more demanding race based on our composite difficulty score (averaging length, technicality, elevation, climate, and altitude ratings). If you're looking for the bigger challenge, go with Tour Divide. If you want a more accessible race, Unbound XL is the better pick.
Tour Divide scores 94/100 compared to 91/100 in our 15-dimension Gravel God Rating. The overall score reflects course profile, prestige, race quality, community, and value.
Tour Divide is generally more accessible for first-time gravel racers, factoring in distance, technicality, and logistical ease. Check each race's full profile for distance options and beginner-specific advice.
Both races take place in June, which means you may need to choose between them. Check the official race websites for exact 2026 dates.
Tour Divide is held in Banff, Alberta to Antelope Wells, New Mexico. Unbound XL is held in Emporia, Kansas. Consider travel logistics, especially if you're flying in — check our full race profiles for airport and lodging details.
Get a personalized training plan for either race — tailored to your fitness, schedule, and goals.
$15/week, capped at $249. One-time payment.