FAIRBANKS, Alaska - The Iditarod Trail Committee received a letter from the Iditarod Official Finishers Club to release the name of "Musher X," the musher whose team tested positive for a banned substance after this year's race.
The ITC responded this afternoon, revealing that the musher in question was four-time champion Dallas Seavey.
And now, Seavey has announced he's withdrawing from the 2018 race in protest.
According to the ITC, Seavey has denied administering Tramadol to the dogs.
Tramadol is a painkiller, and a class four opioid.
The banned substance was found in several of the tests, which were administered after the race in Nome.
The ITC was hesitant to release the name due to legal ramifications; however they went ahead after receiving pressure from the "unhealthy speculation" surrounding the case.
The ITC has decided to not penalize, since the old rule required the committee to prove the musher's intent.
Seavey released a letter anonymously last week, defending himself against the allegations of dog doping.
We will have more on this story as it develops.