Skip to Content
Alumni profile

William Linder, SM ’65, PhD ’68

Taking on Ironman races at 81.
February 18, 2015

In 1962, an MIT professor visited Bill Linder’s graduate class at the industrial design school he was attending in Germany after leaving the U.S. Army. Linder, who had already earned a degree from the U.S. Military Academy at West Point in 1956, was so impressed with the professor that he transferred to MIT to study civil and environmental engineering. The decision would profoundly shape his life both personally and ­professionally.

William Linder, SM ’65, PhD ’68

At MIT, Linder and his classmates worked on solving engineering issues with computers, a very new idea at the time. “It was civil engineering, but really, they were computer projects,” he says. “That was very remarkable.”

After graduating, Linder, who grew up in Columbia, South Carolina, wanted to return home and teach at the University of South Carolina. Soon he was hired as the university’s first full-time computer science professor.

After 12 years on the faculty, he went on to serve as a county treasurer, a computer consultant, and an adjunct professor before retiring in 2002, eager to pursue his new passion: Ironman competitions.

Ironman races consist of a 2.4-mile swim, a 112-mile bike ride, and a 26.2-mile run. To date, Linder has completed more than a dozen Ironman races, including two Ironman World Championships, the race held annually in October in Kailua-Kona, Hawaii. When he competed in it last year, he was one of just five participants 80 or older. Unfortunately, a strong headwind derailed Linder and his fellow octogenarians. None of them finished the swim and bike portions within 10 hours and 30 minutes of starting, which would have qualified them to advance to the run. The wind was so strong Linder was sometimes riding his bike in his lowest gear, going only four or five miles per hour.

Years ago, he didn’t have to worry about finishing in time; he simply exerted all his energy and usually had hours to spare. But as he has aged, his slower pace has erased those extra hours. “There’s not much slack anymore,” he says.

Linder, however, remains undeterred. Now 81, he wants to become the oldest finisher of the Ironman World Championship. To do that, he will have to complete the race as an 82-year-old next fall. “No one thought this was possible, that older people could do the Ironman. I want to keep it up as long as I can,” he says.

If he’s not swimming, biking, or running, Linder is probably at home in Columbia with Lynne, his wife of 47 years, or spoiling their three grandchildren.

Keep Reading

Most Popular

Large language models can do jaw-dropping things. But nobody knows exactly why.

And that's a problem. Figuring it out is one of the biggest scientific puzzles of our time and a crucial step towards controlling more powerful future models.

OpenAI teases an amazing new generative video model called Sora

The firm is sharing Sora with a small group of safety testers but the rest of us will have to wait to learn more.

Google’s Gemini is now in everything. Here’s how you can try it out.

Gmail, Docs, and more will now come with Gemini baked in. But Europeans will have to wait before they can download the app.

This baby with a head camera helped teach an AI how kids learn language

A neural network trained on the experiences of a single young child managed to learn one of the core components of language: how to match words to the objects they represent.

Stay connected

Illustration by Rose Wong

Get the latest updates from
MIT Technology Review

Discover special offers, top stories, upcoming events, and more.

Thank you for submitting your email!

Explore more newsletters

It looks like something went wrong.

We’re having trouble saving your preferences. Try refreshing this page and updating them one more time. If you continue to get this message, reach out to us at customer-service@technologyreview.com with a list of newsletters you’d like to receive.