"I don't know if we'll ever have another Usain Bolt or another Ashton Eaton," Hardee said in a phone interview. "But there are kids coming up ... and it's going to be great to watch who fills those gaps."
2-time Olympic decathlon champion Ashton Eaton retiring →
"I've never been happier a decathlon is over," said Hardee, who also won the event in 2011 and was runner-up two years earlier. "It was tough because it wasn't going well."
Hardee, Johnson-Thompson win at Hypo Meeting →