Home | ultraPacer

Running is better at your pace

Articles

A run-planning tool built for the ultra community

View courses in granular detail

ultraPacer breaks courses down into segments by waypoints, showing elevation change, elevation, terrain, and more. Customize your segments by showing and hiding waypoint types. View amenities and cutoff times at each waypoint. All of the information you need to know in digestible, visual chunks.

Search the course database for your next big run

ultraPacer has a vast selection of official and runner-made courses to choose from. Whether you’re planning your race calendar or ready to plan your next race, the Courses page is a great place to start. Search by name, and apply filters like course distance, event date, and proximity.

Create courses and events for public and private use

Not seeing the course you need? Create it using a GPX file or Strava activity. Make adjustments to elevation and distance, create looped courses, add waypoints with specific amenities and cutoffs, define terrain for more accurate planning, and set a date for a specific event.

Plan your runs to get the most out of your efforts

ultraPacer generates realistic splits and waypoint arrivals based on performance goals, athlete settings, and normalized course factors. Use segment and course data to flesh out your plan with notes and hit the start line ready to execute your best run.

Tailor your pacing with plan and athlete settings

Every athlete has a unique combination of fitness, skill, acclimatization, and approach. Account for factors such as heat training, technical downhill skill, comfort in the dark, altitude impact, and pacing strategy to create a plan that fits how you run.

Share your plans to get your crew on the same page

Use notes, split times, and a clear visual representation of the course to prepare your crew for the demands of supporting your run. Show your crew where you want them, when you want them there, and what you need from them.

Invite your athletes and build your roster

Share plans and courses directly with your athletes on ultraPacer. Connecting as a coach grants edit access to shared plans and the ability to create plans for athletes that are added directly to their feed. Athletes can link an existing ultraPacer account or create a new one.

Customize settings for each athlete

Nobody understands your athletes like you do. Use training data to tailor athlete skills, fitness, and acclimatization and make planned splits more accurate. Dial in paces on hills, account for the effects of heat and altitude, plan for the night sections, and more.

Set achievable, data-backed goals

Use ultraPacer’s run analysis to view normalized paces and trends in pace change and fatigue. Use run data to find realistic finish windows on any course and mold plans to an athlete’s style of running.

Follow athletes on race day

Use official timing or manual check-ins to follow your athletes. Compare their progress to their plans, view projected arrivals based on their current performance, and identify issues before they derail a race.

Prepare your runners and crews more effectively

Meet your runners where they are. Provide course features and event rules in the same interface they use to plan their race - a digestible, visual, and interactive format that is a powerful supplement to any runner’s manual.

Get featured in the course database

ultraPacer features upcoming official events in the Courses database - the single-most viewed page on the platform. Increase the visibility of your events and secure registrations on the sport’s preeminent race-planning website.

Create recurring annual events

Save yourself setup time by creating your races as recurring events and group distances under one umbrella. Make small or sweeping changes to next year’s courses with ease and create a lineage that contextualizes historic performances.

Collect your events on your Org page

Make it easy for runners to find your other events and drum up interest in the rest of your race series. Incentivize registration throughout the year with promotions and ad banners that reach beyond your email list.

Determine fair cutoffs and assess setup for new events

You plotted your course and secured the permits for a new race. Using your overall cutoff, ultraPacer can show you realistic arrivals for your first and last finishers, allowing for efficient volunteer management, shift lengths, and allocation of resources throughout the event.

Follow your runner in real time

Enter your runner’s aid station arrivals, or let official timing feed them in automatically, and ultraPacer forecasts their upcoming splits and finish time from how they are actually running.

Watch the whole race unfold

Where live timing is available, Race Overview shows leaderboards, projected finishes, and waypoint arrivals for the entire field. Track the runners you care about alongside the front of the pack.

Know if your runner is on plan

Pair live check-ins with a shared plan to see where your runner stands against their goal splits, so you know when to head to the next crew stop and what to have ready.

Articles

Western States 2026 in Review

Throughout the 2026 Western States Endurance Run, we ran a live finish-time forecast on ultraPacer for the whole field — updating it continuously as the race unfolded. At the front of the field our model matched the race remarkably well: the men's winner was predicted to within a few minutes of his actual finish for the entire final 20 miles.

What's new?

Custom avatar uploads!

You can now upload a custom avatar image for your profile! Head to your settings page to upload, replace, or remove your avatar.

If you signed in with a social account (such as Google), you can also choose whether to show your social avatar, your uploaded avatar, or none at all. Your avatar now appears alongside athletes you coach, too.