Course Overview

100.8 Miles

Total Race Distance

Download the 2026 GPX FILE

2026 AC100 Course Map

2026 AC100 course map by Travis Metzger – updated July 19, 2026.

 

Download the 2026 AC100 Checkpoint Cutoff Chart.

The 2024 Race Book describes the traditional point-to-point course and does not reflect the revised 2026 route. Use the 2026 course map and checkpoint chart on this page for current race information.

2026 AC100

AC100 Aid Stations
Aid StationMiles to NextMileageFirst RunnerCut OffCrew AccessPacer AccessDrop BagsPace to NextTime To Next
Loma Alta Park11.2005:00AM Sat05:00AM SatYesNoNo18:4203:30 (210)
Clear Creek4.111.207:00AM Sat08:30AM SatYesNoNo19:4201:20 (80)
Josephine Peak9.315.307:45AM SatSee note belowNoNoNo16:3802:35 (155)
Red Box8.624.609:10AM Sat12:25PM SatYesNoYes15:4502:15 (135)
Newcomb-19.533.210:20AM SatSee note belowNoNoNo19:3003:05 (185)
Shortcut-16.442.711:45AM Sat05:45PM SatYesNoYes22:4402:25 (145)
Chilao-13.749.101:00PM Sat08:10PM SatYesYesYes24:0801:30 (90)
Mt Hillyer3.752.801:45PM Sat09:40PM SatNoNoNo21:2701:20 (80)
Chilao-26.456.502:20PM Sat11:00PM SatYesYesYes22:3702:25 (145)
Shortcut-29.562.903:30PM Sat01:25AM SunYesNoYes17:5302:50 (170)
Newcomb-26.372.405:00PM SatSee note belowNoNoNo19:5002:05 (125)
Chantry Flats6.178.705:50PM Sat06:20AM SunYesYesYes31:5803:15 (195)
Mt Wilson5.684.807:40PM Sat09:35AM SunYesNoYes16:0101:30 (90)
Sam Merrill6.090.508:20PM Sat11:05AM SunNoNoYes17:3001:45 (105)
Millard4.496.509:20PM Sat12:50PM SunNoNoYes15:5901:10 (70)
Loma Alta Park100.810:00PM Sat02:00PM SunYesNoYes

* There is no cutoff at Josephine Peak or Newcomb. Transporting dropped runners out of these locations is extremely difficult.

2026 AC100 Elevation Profile

The 2026 AC100 estimated elevation profile created by Travis Metzger

Click to view the 2025 AC100 3D terrain map.

In addition, here is an interactive, 3D terrain map of the 2025 Angeles Crest 100 Mile Race. It is based on the course GPX file downloaded from the AC100 website. The map is initially zoomed in on the climb up Mt. Baden-Powell. To change the view, use the control on the upper right side of the screen. Track and placename locations are approximate and subject to errors.

Comparing the Top UltraMarathons Angeles Crest Western States Leadville Wasatch Old Dominion Boston Marathon

2026 elevation data: The previous segment-by-segment elevation table described the traditional course and has been removed. Use the 2026 course map and elevation profile above for the revised route.

MAP LEGEND

The maps on the following pages are divided by
checkpoint to checkpoint segments to give runners a
general overview of each section of the 2019 course.
Additional maps show areas that might be confusing
on training runs if you don’t know the course well.
Because the length of the course segments vary
significantly, as does their primary orientation
(north/south versus east/west), the orientation and
scale of the maps vary as well. The scale and map
orientation are provided in the corner of each map.
The following symbols are used throughout all maps.

Detailed AC100 veteran tips, as well as driving
directions for you and your crew, can be found in the
AC100 Race Book. The AC100 Map Book is available
for download as well.

GAIN
1 '
LOSS
1 '
HIGH POINT
1 '
LOW POINT
1 '