Ultramarathon Pace Calculator

Explore the pace you need to hit to reach your ultramarathon goal finish time.

Pick your distance and goal time to see the average pace you need and a full split breakdown across the day. Ultras rarely run even — aid stations, hiking the climbs, and the long slow fade all add up — so use the model as a frame and tap any split to set your own pace segment by segment.

Select Your Distance & Goals

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Ease off in the second half, so your finish is a little slower than your start.

Ultramarathon Race Summary

Pace / mile
11:35
Pace / km
7:12
Finish time
6:00:00
Distance
31.1 mi

Edit Your Pacing

Splits

Edit pacing details below and your finish time & race summary will update accordingly.
MarkSplitPace / mi
5 km35:020:35:02 elapsed
10 km35:151:10:16 elapsed
15 km35:281:45:44 elapsed
20 km35:412:21:24 elapsed
25 km35:542:57:18 elapsed
30 km36:063:33:24 elapsed
35 km36:194:09:44 elapsed
40 km36:324:46:16 elapsed
45 km36:455:23:02 elapsed
50 km · finish36:586:00:00 elapsed

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About This Sport

Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.

An ultramarathon is anything past the marathon — 50K, 50-mile, 100K, 100-mile, and timed events — usually on trails and measured in hours rather than minutes. Aid stations become the rhythm of the day, and hiking the climbs is part of the plan. It rewards patience, problem-solving, and a willingness to keep moving when it gets hard.

Read the Guide

Ultramarathon

An ultramarathon is anything beyond the standard marathon — 50K, 50-mile, 100K, 100-mile, and timed events. Crossing the line is less about speed and more about not quitting.

Race Near You

Find a Ultramarathon Race Near You

Enter a city or ZIP to see the closest upcoming ultramarathon races to line up for.

Upcoming Ultramarathon races

Oct
16–17
Fri–Sat
UltraRunning
BadgerPalooza
870 W Malaga Road, Williamstown, NJ
Ultra
Avg 67° / 45°·139 ft city elevation
Oct
16–20
Fri–Tue
UltraRunning
Little Rooster Run
4476 US-127 Glencoe, KY
5K · 100 Mile
Avg 67° / 42°·677 ft city elevation
Oct
17
Sat
UltraRunningTrail Running
Tecumseh Trail Challenge
775 Yellowwood Lake Rd, Nashville, IN
8 Mile · Half Marathon · Marathon · 50K
Avg 66° / 44°·822 ft city elevation
Oct
17
Sat
UltraRunning
Ȟaȟá Wakpádaŋ Loopet Loppet
1221 Theodore Wirth Parkway, Minneapolis, MN
Avg 55° / 40°·820 ft city elevation
Oct
17
Sat
UltraRunningTrail Running
Indian Creek Trail Runs
2499 Pine Creek Rd, Sedalia, CO
Ultra
Avg 64° / 35°·8,061 ft city elevation
Oct
17
Sat
UltraRunningTrail Running
Sinnemahone Ultra Trail Run Sponsored by Keystone Rural Health Consortia
Cameron County Chamber of Commerce, Emporium, PA
50K
Avg 62° / 39°·1,044 ft city elevation
Oct
17
Sat
UltraRunningTrail Running
Sadlers Creek Stumble (32 Hour - 26.2 - 13.1 - 10k)
940 Sadlers Creek Rd, Anderson, SC
10K · Half Marathon · Marathon · 100 Mile
Avg 73° / 51°·749 ft city elevation
Oct
17
Sat
UltraRunningRucking
Galveston Ultra Trail
1929 Boddeker Rd, Galveston, TX
1K · 1 Mile · 5K · Half Marathon · 50K
Avg 82° / 68°·-2 ft city elevation
Oct
17
Sat
UltraRunningRucking
Sandhills Running "Sasquatch 4-Hour 1-Mile Repeat" and "Sasquatch 5K"
555 E. Connecticut Ave, Southern Pines, NC
1 Mile · 5K
Avg 72° / 49°·427 ft city elevation
Oct
17
Sat
UltraRunning
Minnie Ha Ha 6 & 12 Hour Endurance Runs
801 Old Gravois Road, St. Louis, MO
Avg 69° / 50°·471 ft city elevation

Frequently Asked Questions

How is ultra pacing different from a marathon?
Ultras don't always run even. Time spent at aid stations, hiking the steep climbs, and the gradual slowdown over many hours mean your splits could be much slower than your early ones. The calculator gives an average target; the editable splits are where you plan the real day.
Should I include aid-station and walking time?
Yes — your finish time includes everything, so plan for it. Set slower paces on the splits where you expect to go hike uphill, take breaks, and the calculator will calculate your finish to match how you plan to race.
What distances does this ultramarathon pace calculator handle?
This ultramarathon pace calculator can help you track pacing for any ultramarathon distance. It will help you track your goal time, pace by split, and split time.