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Which San Gabriel long run routes actually prepare you for AC100?
Routes that combine sustained climbing, long descending, and exposed heat are the most useful AC100 preparation. You do not need one exact route; you need repeatable long-run patterns that build durability under SoCal conditions.
Last updated: 2026-02-18
What should be on your checklist?
Use this checklist to cover the essentials before race day or your next key training run.
- Choose one climb-focused route and one descent-focused route.
- Use a loop or out-and-back where bailout points are clear.
- Test fueling and hydration exactly as planned for race day.
- Track heat, vert, and how your legs handle the final hour.
What steps should you follow?
Follow these steps in order so your plan stays simple and repeatable under AC100-style conditions.
- Start with a weekly long-run route you can repeat for 3-4 weeks.
- Add vertical gain in small jumps rather than random big spikes.
- Every few weeks, run back-to-back long days to mimic late-race fatigue.
- Rotate in hot canyon sessions and early-night finishes to simulate AC100 stress.
Prioritize route consistency and execution quality over chasing a new trail every weekend.
The Angeles Crest Mission Pack
Want the tighter paid layer behind these free guides? The Mission Pack includes the Field Manual, Dark Mode Manual, 6 matched GPX routes, Mission Console, and trail awareness notes in one system.
What should you read next?
Use these related guides to build a full plan across training, logistics, and race-day execution.