watchmyultra
For marathon swimmers and their crews

Give people more than a dot to follow.

Bring your followers into the story of your swim. Showcase your sponsors, put your charity's donation link beside the action, and use audience insights to strengthen your next sponsorship pitch.

Built around your existing GPS tracking data. It doesn't replace your tracker.

Discuss your swim Explore real swims ↓
Lev Goldberg's Lake Huron crossing, replayed: the track, currents, waves and the lake floor beneath. The recording has no sound.
Featured swims

Real swimmers. Real crossings.

All crossings

Swims marked Tracked with us were set up here by their crew. The others were built around a tracker link the swim had already made public; we were not part of those crews.

Sponsorship

Your swim has an audience. Make that part of your sponsorship story.

A sponsorship proposal can include more than the challenge itself. Show prospective partners how people followed your previous swim, offer visibility alongside your next one, and share a clear account of the audience engagement afterward.

A

Build a stronger sponsorship pitch

Bring evidence, not just expectations.

Use audience results from previous swims to help explain the attention your next challenge could attract: how many people followed, how many came back, and how many watched at once.

B

Offer another sponsor placement

Give sponsors a place in the experience.

Include sponsor branding and links alongside the swim your followers are watching: an additional placement to offer next to your social posts and other sponsorship commitments.

C

Report back after the swim

Show what the partnership delivered.

Share the audience and engagement results with sponsors, and use that evidence in renewal discussions or your next proposal.

Give sponsors more visibility, and clearer evidence of the audience you reached.

The numbers are measured reach and engagement on your swim page: how many people followed and how they interacted. They are not a measure of sales or a sponsor's return on investment, and they do not include your own social-media reach, which you can add from your platforms' statistics.

Charity swims

Keep your cause beside your swim.

Put a direct link to your charity's donation page alongside the experience, so followers can move from watching your progress to supporting your cause.

The button links to your charity's own donation page. WatchMyUltra never handles the money; it only counts how many people tapped the link, so you can tell the charity afterwards.

54 fundraiser-link taps from Lev's swim page.

Lev Goldberg's swim page: his name, route and follower count on the left, and the 2SLGBTQ+ Youth fundraiser with an orange Donate button on the right, above the live map
Lev Goldberg's page: the 2SLGBTQ+ Youth fundraiser beside the live swim.
Example audience report

The evidence, in one document

After the swim you get a report you can send straight to a sponsor or charity. Each number answers a question they are likely to ask:

  • How many people followed? Different people who opened your page before, during and after the swim.
  • Did they come back? Returning visitors: the people who checked in again as the swim went on.
  • How many watched at once? The peak number following live at the same moment.
  • When did attention build? Hour-by-hour activity across the swim.
  • Did the cause get attention? Taps on your fundraiser link from the page.

These are people on this site, counted without storing anything that identifies them. They are not social-media reach, and a tap on a fundraiser link is not a donation.

Sample post-swim audience report showing estimated viewers, return visits, concurrent viewers, and fundraiser link clicks SAMPLE DATA · OPEN THE FULL REPORT
How it works

What you do, what I do

  1. 01

    We talk about your swim

    A short call about the crossing, the date window, your charity and your sponsors.

  2. 02

    You send the details

    Your tracker's share link, the route, a photo, and your fundraiser and sponsor links. Today WatchMyUltra reads SPOT trackers; if your crew carries something else, ask.

  3. 03

    I set up your page

    It lives at yourname.watchmyultra.com. You share that one link with your followers; tracking starts when the swim does.

  4. 04

    After the finish

    The same page becomes a replay of your crossing, and you get the audience report for your sponsors and charity.

Your crew runs the swim. Your tracker records it. WatchMyUltra helps everyone else experience it.

WatchMyUltra is for the people following from shore. The crew and their tracker stay the source of truth, trackers have gaps, the conditions come from public forecast models rather than instruments in the water, and the page is not for navigation.

Francis Szakacs in the water in an orange swim cap and mirrored goggles, holding an orange tow float
Who's behind it

Built by a swimmer who wanted the full story

I'm Francis Szakacs, an amateur open-water swimmer fascinated by long swims.

I built the first version of WatchMyUltra when my friend Attila crossed Lake Ontario in 2026. The basic GPS tracking page showed where he was, but I wanted to understand more of what was happening. I started layering in additional data to tell a fuller story of the swim.

That curiosity became WatchMyUltra: a richer way to bring people along for long swims.

Book a call with me
Direction

What we're building next

Not available yet, and no dates promised. If one of these would make a difference to your swim, that is exactly the conversation I'd like to have.

Planned

YouTube streaming

Stream the WatchMyUltra spectator experience live on your own YouTube channel. That means the live page itself, the map and the numbers, not camera footage from the water.

Planned

Adopt-a-mile fundraising

Give supporters another way to contribute by adopting miles of your swim.

Planned

Multiple swimmers

Follow several swimmers within a shared spectator experience.

Interested in one of these? Tell me about your swim →

Questions

Practical questions

What does it cost?

Let's talk. I'm sure we can figure out a price that works for you, including free: I built this out of enthusiasm first.

Does it replace my GPS tracker?

No. Your crew keeps the tracker and navigation they already use. WatchMyUltra reads the positions the tracker already shares (today, a SPOT tracker's share link) and builds the page around them. The crew and their tracker remain the source of truth.

Who can see my page?

Anyone you give the link to. If you'd rather your swim didn't appear on this site's front page or in search results, it can be kept off both.

Do you handle donations?

No. The Donate button goes straight to your charity's own donation page, and we never touch the money. We only count how many people tapped the link.

What do sponsors actually get?

Their branding and links on the page your followers are watching, and an audience report afterwards showing how many people followed and how they engaged. That is measured reach and engagement, not proof of sales.

Is anything on the page official?

Nothing here is official. Every time, distance and speed on this site is worked out from the swimmer's GPS tracker (a device on a boat reporting every few minutes), and the conditions come from public forecast models, not from instruments in the water. The crew's log is the swim's own record, and a sanctioning body such as Solo Swims of Ontario is what makes a crossing official. Where a crew has given us a start or finish time we use theirs and say so; everything else is our best reading of the dots.

Contact

Planning a marathon swim?

Tell me about your crossing, your charity and your sponsors, and I'll show you what your followers would see.

Discuss your swim