Albert Korir stood on top of the podium at the 2021 New York City Marathon. Now he's standing as another cautionary tale about whether we can trust anything we see in distance running.

The Kenyan runner has been handed a five-year ban after testing positive for CERA, a modern EPO variant that boosts red blood cell production. Three positive samples were detected during October training in Kenya, and the Athletics Integrity Unit didn't mince words in their verdict: the tests "constitute clear evidence of the athlete's use of a prohibited substance on multiple occasions."

Let that language sink in. Not a mistake. Not a contaminated supplement. Multiple occasions. This was systematic. Intentional. Planned.

Korir gets to keep his 2021 NYC Marathon victory since the positive tests came later, but everything from October onward is disqualified. The ban runs through January 2031, effectively ending his elite career at age 35. He got a one-year reduction for admitting guilt without requesting a hearing - the anti-doping equivalent of pleading guilty for a lighter sentence.

And here's what kills me about these stories, folks. Every time we celebrate a marathon champion, we have to wonder if it's real. Every incredible time. Every gutsy finish. Every inspiring story about human endurance. We have to ask: was it talent and training, or was it chemistry?

Korir wasn't some one-hit wonder. He finished runner-up at NYC in 2019 and 2023. He placed third in 2024. This was a legitimate, elite marathoner with a long track record of success. And now we'll never know which performances were clean and which weren't.

This isn't just about one runner. Distance running has a credibility crisis. Too many champions have fallen to doping violations. Too many incredible performances have asterisks next to them. Too many fans have been burned by believing in someone only to find out it was pharmaceutical enhancement all along.