If accused of cheating in a road race, follow the patented D.E.N.N.I.S. System for dealing with the fallout.
D - Deny the allegations.
E - Enlist the help of any two-bit lawyer who's desperate enough to take the job.
N - Negotiate with the race director. Depending on their integrity or lack thereof, they may be willing to accept a donation on behalf of the race or the race's charity in exchange for no DQ.
N - Name and shame your accusers online.
I - Intimidate those who question your results and Invent evidence that supports your race results.
S - Sign off of social media. This is only to be used as a last resort, if none of the above has proven to be effective in thwarting your accusers.