Yes, Red Mind probably does dump dead contestants down the sewers.
Yeah, that does explain where most of those corpses go. He would generate a large amount of them.
What a rotten thing to do.
Some of the corpses of Death Run ex-competitors are in such a state, that Red Ming could make kebabs out of them, and no one would be the wiser. More money, less dumping.
@Saiko (But then there would be)
SOYLENT RED IS PEOPLE!