Embed a Triathlon Calculator

Why we give this away

<iframe
  src="https://trisplitcalc.com/embed/triathlon-calculator/"
  title="Triathlon finish time calculator"
  width="100%"
  height="440"
  loading="lazy"
  style="border:1px solid #d0d7e2;border-radius:12px;max-width:640px"
></iframe>

Live preview

This is the exact widget the snippet above produces, running here in an iframe just as it would on your page.

<table>
  <caption>IRONMAN races with non-standard cut-off times</caption>
  <thead>
    <tr><th>Race</th><th>Swim</th><th>Swim + bike</th><th>Overall</th></tr>
  </thead>
  <tbody>
    <tr><td>IRONMAN Chattanooga</td><td>2:20</td><td>10:00</td><td>16:30</td></tr>
    <tr><td>IRONMAN Austria (Kärnten-Klagenfurt)</td><td>2:20</td><td>10:20</td><td>17:00</td></tr>
    <tr><td>IRONMAN Copenhagen</td><td>2:20</td><td>9:30</td><td>15:45</td></tr>
    <tr><td>IRONMAN Hamburg</td><td>2:20</td><td>9:30</td><td>15:30</td></tr>
    <tr><td>IRONMAN Kalmar</td><td>2:20</td><td>10:00</td><td>16:00</td></tr>
    <tr><td>IRONMAN Portugal-Cascais</td><td>2:20</td><td>10:00</td><td>16:15</td></tr>
    <tr><td>IRONMAN World Championship (Nice)</td><td>2:20</td><td>10:50</td><td>17:00</td></tr>
    <tr><td>IRONMAN 70.3 Chattanooga</td><td>1:20</td><td>5:30</td><td>8:30</td></tr>
  </tbody>
</table>
<p><small>Cut-off data from <a href="https://trisplitcalc.com/ironman-cutoff-calculator/">TriSplitCalc</a>,
read from official IRONMAN athlete guides. Always confirm against your own race guide.</small></p>

<table>
  <caption>Official triathlon distances (World Triathlon)</caption>
  <thead>
    <tr><th>Format</th><th>Swim</th><th>Bike</th><th>Run</th></tr>
  </thead>
  <tbody>
    <tr><td>Super sprint</td><td>250-500 m</td><td>6.5-13 km</td><td>1.7-3.5 km</td></tr>
    <tr><td>Sprint</td><td>up to 750 m</td><td>up to 20 km</td><td>up to 5 km</td></tr>
    <tr><td>Standard (Olympic)</td><td>1500 m</td><td>40 km</td><td>10 km</td></tr>
    <tr><td>Middle (70.3)</td><td>1900-2999 m</td><td>80-90 km</td><td>20-21.9 km</td></tr>
    <tr><td>Long (140.6)</td><td>3000-4000 m</td><td>91-200 km</td><td>22-42.2 km</td></tr>
  </tbody>
</table>
<p><small>Distance table via <a href="https://trisplitcalc.com/how-long-does-a-triathlon-take/">TriSplitCalc</a>,
from the World Triathlon Competition Rules.</small></p>

The terms, in full

• Free for any site, including commercial ones. No account, no key, no expiry.
• The widget sets no cookies and runs no analytics. It is safe to embed on a page that has to make cookie-consent claims.
• The widget page is noindex, so it cannot compete with your page in search results.
• For the HTML tables, please keep the credit link. Add rel="nofollow" if your site policy prefers it — that is genuinely fine, and we would rather have an honest link than an optimised one.
• Restyle anything. The tables carry no classes precisely so they inherit your design.
• If the calculator ever gives a result you think is wrong, tell us — the models and their constants are published on the methodology page so you can check our working.

Where people put it

• Club training pages. New members constantly ask what a realistic finish time looks like for the local sprint. A calculator on the page answers it without anyone having to reply to the email.
• Coaching sites. Useful on a “planning your season” page, where a prospective athlete can see what a goal actually demands before the first conversation.
• Race websites. Pair the widget with your own course profile and cut-off times so entrants can sanity-check whether they will make the gates on your course.
• Beginner guides and blogs. The distance table is a better answer to “how long is a sprint?” than a number, because it shows that sprint is defined as an upper limit rather than a fixed distance.

If you run a club or a race and want something the widget does not do - a course-specific version, your own cut-offs pre-filled, or the data in another format - ask. We would rather build the useful thing than have you work around the generic one.

Frequently asked questions

Is the calculator widget free to embed?

Yes, on any site, commercial or not, with no account and no attribution requirement beyond the link already inside the widget. Clubs, coaches, race organisers and shops are all welcome to use it.

Do I have to keep the link?

The iframe widget carries its own link home, and we would rather you left it there - but nothing checks. For the static HTML tables, a credit link is the only thing we ask in return for the data, and you are welcome to add a nofollow attribute if that suits your site's policy.

Does the widget track my visitors?

It sets no cookies and runs no analytics of its own. The only thing it records is a UTM parameter on the outbound link, which tells us a visit came from an embed rather than from search.

Will the embedded calculator compete with my own pages in search?

No. The widget page is marked noindex, so it never appears in search results and cannot outrank the page you put it on.

Can I change the size or style?

Adjust the width, height and border on the iframe freely. A height of 440 pixels fits the whole widget without scrolling on most layouts; below about 380 the results panel starts to clip.

Can I get the cut-off or distance data as a file?

Not yet as a download, but the tables below are plain HTML you can paste and restyle. If you want the underlying data in another format for a club or federation project, get in touch and we will send it.