FULL COURSE

101.2 Miles

Total Race Distance

Download the 2023 AC100 GPX. Updated: 5/20/23. GPX & Maps by Gerry Walsh.

View and download the 2019 Map Book.

Download the 2023 AC100 Google Earth map. Open Google Earth and tap Menu Projects. Then add the KMZ file.

2023 AC100 Updated Course

Comparing the Top UltraMarathons Angeles Crest Western States Leadville Wasatch Old Dominion Boston Marathon
Segment Seg. Dist. Total Dist. Seg. Gain Total Gain Seg. Loss Total Loss Low Point High Point Avg.
Start to Inspiration 9.3 9.3 3230 3230 1770 1770 5945 8480 7594
Inspiration to Vincent 4.5 13.8 700 3930 1460 3230 6590 7492 7302
Vincent to Islip 12.1 25.9 3610 7540 3520 6750 6590 9300 8137
Islip to Eagle’s Roost 2.5 28.4 490 8030 590 7340 6675 6906 6750
Eagle’s Roost to Cloudburst 4.6 33 770 8800 420 7760 6548 7018 6757
Cloudburst to Three Points 4.8 37.8 220 9020 1290 9050 5860 7025 6397
Three Points to Hillyer 3.3 41.1 570 9590 590 9640 5746 6072 5906
Hillyer to Chilao 3.7 44.8 550 10140 1160 10800 5219 6198 5771
Chilao to Shortcut 6.5 51.3 1510 11650 2000 12800 4269 5537 5042
Shortcut to Red Box 9 60.3 2260 13910 2470 15270 3061 4790 3724
Red Box to Newcomb 8.5 68.8 1020 14930 1630 16900 3061 4656 3665
Newcomb to Chantry 6.6 75.4 830 15760 2680 19580 1775 4122 2914
Chantry to Idlehour 9 84.4 3000 18760 2050 21630 2182 4926 3567
Idlehour to Sam Merrill 5.5 89.9 2310 21070 960 22590 2611 4483 3405
Sam Merrill to Millard 6.6 96.5 290 21360 2890 25480 1880 4498 3225
Millard to Finish 4.7 101.2 450 21810 1000 26480 1135 2112 1591

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.

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