U.S. runner Molly Huddle found out the hard way at the 2015 IAAF World Championships in Beijing that it's never good to celebrate until you cross the finish line.
Running the 10,000 meters, Huddle thought she had the bronze medal locked down as she approached the finish line—so she let up and started to celebrate. The only problem is that U.S. teammate Emily Infeld was right behind her.
Infeld took advantage of the celebrating and snuck past Huddle for third place just before they crossed the line. Take a closer look at the finish:
Apparently Huddle didn't learn from Oregon runner Tanguy Pepiot's mistake.
The 30-year-old Huddle is obviously kicking herself for losing out on a medal in that fashion. It's a painful lesson to learn, but she now knows to run through the line every time.