Western States Endurance Run2.1 - App Store

The official data companion app for the Western States 100-Mile Endurance Run - the world's oldest 100-mile trail race, run every June from Olympic Valley to Auburn, California.

Race day, stay up to the moment on every runner you care about. Off-season, fifty years of finishers, splits, and stories are at your fingertips.

**RACE DAY**

. Live tracking on every starter - current aid station, distance, pace, race time
. Filter by gender, age group, US state, country, or aid station - see exactly who's where
. Course-record badges - instantly spot runners on or under CR, CR-F, AGR, and AGR-F pace
. Leader gap badges - see how far behind 2nd-5th overall, women's, masters, and age-group leaders are running
. Tap any badge to head-to-head compare splits with the runner setting the mark
. Persistent live video player - watch the broadcast while you scroll, switch tabs, or open another runner's page
. Push notifications when runners you've favorited reach a new aid station, finish, or DNF

**ARCHIVES**

. Every finisher since 1974 - name, age, time, place, photo, finish video where available
. 50 years of cover images, race recaps, year-by-year stats
. Splits leaderboards, sub-24-hour silver buckle counts, finish percentages
. Search by name, filter by year, gender, age group, US state, or country
. International runners shown with country flags

**STATS LAB**

. All-time top finish times, filtered by gender, age group, country, year range
. Splits leaderboards for any aid-station-to-aid-station segment, on the modern 100.2-mile course
. Year-over-year charts - temperature highs and lows, finishers, finish percentage, multi-finishers, international entrants
. Side-by-side comparison of any two runners' splits

**RUNNER DETAIL**

. Full split table with elapsed time and field position at every station
. Race photos and finish videos
. Multi-year finish history, age progression, course-record holdings
. Direct comparison links to course-record holders for every category

**OFF-SEASON**

. News feed pulled from the official @wser channels
. Race-day live stream notifications
. Update notifications when new years are added to the archive

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Built by trail runners, for trail runners. Free, no account required.

Data: Western States Endurance Run Foundation, UltraLive.net, wser.org and the ultramarathon community.

Feedback: narpublic@gmail.com

The Western States (R) 100-Mile Endurance Run is the world’s oldest 100 mile trail race. The Run starts in Olympic Valley, California, near the site of the 1960 Winter Olympics, and ends 100.2 miles later in Auburn, California. In the decades since its inception in 1974, Western States has come to represent one of the ultimate endurance tests in the world.

Version History The 2026 race has completed. We've added the new 2026 archive, more splits, and a brand new Performance Rating feature. A few bug fixes. Thank you to everyone who joined, helped, ran, volunteered. 2.1 Jul 1 WSER 2.0 — a complete rebuild from the ground up.

NEW
• Persistent live video player — watch the broadcast while you scroll the leaderboard, switch tabs, or open a runner's detail page. Drag it anywhere on screen.
• Course-record badges on Race Day — overall CR, women's CR-F, age-group AGR, women's age-group AGR-F. Green when on or under record pace, tan when behind. Tap to head-to-head compare with the record holder.
• Leader-gap badges for runners in 2nd–5th place — overall, women's, masters, age-group, and women's age-group. See exactly how far back the chase pack is running.
• USA filter (with per-state subselect) and International filter (with per-country subselect) on Race Day, Stats Lab, and the Archives.
• Stats Lab — top finish times and splits leaderboards filterable by gender, age group, country, US state, and year range.
• Year-over-year charts — temperature, finishers, finish percentage, multi-finishers, international entrants.
• Push notifications for favorited runners — aid station updates, finishes, and DNFs.
• News feed from wser.org pulled hourly.
• 50-year archive — every finisher since 1974, with splits, photos, and finish videos where available.

DATA QUALITY
• Cleaned up city, state, and country values across every year of finishers — flags now display correctly for international runners.
• Backfilled 2024 location data (286 runners).
• Re-verified course-record holders, age-group records, and silver-buckle counts for every year.

UNDER THE HOOD
• 5-year identity matching across re-finishers — see Tim Twietmeyer's 27 finishes as one career, not 27 separate entries.
• Live race day data via UltraLive every 5 minutes during the race.
• Offline archive bundled with the app — every finisher since 1974 works without a network connection.

Feedback, bugs, suggestions: narpublic@gmail.com 2.0 Apr 28 Ready for 2025 Race Day! 1.7 06/17/2025 UI Improvements. Announcement. Removed legacy news, and live stream promo. 1.6 06/13/2025 Updated for 2024 race. 1.5 06/18/2024 Updated entry lists for 2023! 1.4 06/20/2023 Updated logo and colors. 1.3 06/15/2022 Getting the app ready for the 2022 WSER! 1.2 06/09/2022 Getting a quick update in before race day like some last minute miles!

Fixed a bug when searching runners and another one related to the live video.

Added the ability to have photos or video as part of a runner's historical archive. 1.1 06/21/2021 1.0 06/16/2021