In California in the mid-1990s, Hannah Sasser, a talented swimmer and troubled teenager, confided in her former coach during a swim meet that, the way her life was going, she didn’t think she’d make it to see her 30th birthday.

Brian Clark, who had coached Hannah before her recent move to Sacramento, disagreed.

So, during the meet, amid splashing swimmers and wafts of chlorine, they scribbled down a bet.

Read about their reunion in Austin in a story on our premium website.