Javelina Jundred · Oct 31, 2026
Your crew posts from the trail. Family, friends and spectators see where you are and when to head to the crew zone. Nobody needs an app or an account to follow.
Who it's for
The runner sets it up, the crew keeps it current, and everyone else follows along. Each has its own video, about a minute long.
No. 1
Set it up once, then run.
No. 2
Keep everyone posted without a group text.
No. 3
Know where they are, and when to go see them.
No. 4
Follow up to 30 runners on one race page, or put the race on a TV.
No. 5
Your whole team on one page.
How it works
Sign in with your email (no password). Pick your link, distance, wave and goal time. It takes about two minutes.
Add them by email from your admin desk. They tap your aid stations and post updates from their phones.
Send yourname.trailmark.run to family and friends. It opens in any browser, with nothing to install.
Made for race day
Signal at an ultra comes and goes, on the course and at the crew zone. Trailmark keeps working when it drops.
A page you've opened once opens again with no signal, showing the last spot, splits and updates it got.
Last updated Sat 2:14 PM AZ · offlineAid-station taps, crew updates and cheers made with no signal stay on the phone and send themselves when signal comes back. Nothing is lost or sent twice.
Offline · 2 will syncWhen signal returns, the page fills in what it missed on its own. No refreshing, nothing to retype.
Syncing…Before race morning: open the page once with good signal. That's all it takes for it to work without.
Questions
Yes, for everyone. Starting a page, crewing it, following it and coach teams all cost nothing.
Trailmark keeps working. A page you've opened once on your phone opens again with no signal and shows what it last knew, with the time it's from. Aid-station taps, crew updates and cheers made with no signal wait on the phone and send themselves when signal comes back, once each.
Open your runner's page once with good signal before race morning, and it's ready.
Nobody following you does: your page is a website, and reading it, cheering and getting alerts all work without an account. You and your crew sign in with your email to post.
On iPhone, alerts work once the page is added to the Home Screen (iOS 16.4 or later). The page walks people through it.
You add them by email from your admin desk. They get an email with a link, then sign in with a 6-digit code we send them. There's no password to set up.
The Javelina Jundred on Oct 31, 2026: the 100 miles, the 100K and the 31K (the Jackass Night Trail). It's the first race on Trailmark, and more come after it.
To see what's coming, for races and for the app, look at the roadmap. To ask for your race, send us a note.
No. Trailmark isn't affiliated with the Javelina Jundred or Aravaipa Running. For official results, use the race's own tracker.
No. A runner's spot moves when an aid station is logged: by a crew tap, the runner's own tap in runner mode, an iPhone Shortcut or, with a bib on the page, the official timing mats. Between aid stations the map shows an estimate from their pace.
Anyone with your link. If you let people find your page (it's on when you sign up, unless you untick it), they can also find it by your name on Trailmark, on the race page and through search engines like Google. To stop that, turn off Show my camp on the race page in your admin desk's settings, or hide your name there and show a nickname instead.
Give everyone else one link, and let your crew get on with crewing.
Trailmark starts with the Javelina Jundred. More races and features come next, and real iPhone and Android apps are on the way. See the roadmap