Registration opened this morning for runDisney's inaugural Avengers Super Heroes Half Marathon Weekend, and it's nearly sold out already. You'd almost think this was Comic-Con International.

Announced last month, the Nov. 14-16 event brings runners to Disneyland in Anaheim, California, for kids races, a 5K, a half marathon, a pre-race pasta party featuring the Marvel characters and a merchandise expo. It marks the first such collaboration since Disney acquired Marvel in 2009.

At the time of this post, the kids races and Avengers 5K were sold out, with the Avengers Half Marathon at 98 percent; there's still a little room at the pasta party, however.

Update (11:25 a.m.): And just like that, the Avengers Half Marathon is sold out.