I really can't see a black man being elected statewide in Mississippi, he may win the first round with a plurality but I see no path to 50% for him in the 2nd round.
I bet you Espy doesn't even make the runoff, as I think most African American voters in Mississippi are smart enough to tactically vote for Shelton in the first round.
This will be a Hyde-Smith/Shelton runoff, or a Hyde-Smith/McDaniel runoff. Either way, Espy finishes in third.
Espy is both a better candidate than Shelton (who is a random) and will easily dominate the black vote.