French race walker Yohann Diniz is leading today’s 50k, but his competition hasn’t been a, uh, cakewalk? It looks like Diniz either has severe gastrointestinal issues—at times shoving a sponge down his pants to soak up wet fecal matter, and then throwing the sponge off toward the crowd—or stuck a bunch of chocolate bars in his underwear for energy, and they melted.

That’s clearly it, right? It’s chocolate bars?

Update (9:53 a.m.): Diniz has just collapsed on the course. It was probably not chocolate bars.

Update (11:08 a.m.): He finished the race six minutes behind the winner.

[NBCSN]