You can follow Matt's progress at today's Chicago Marathon here. As of this writing, Matt has passed the 10K mark in 00:35:02, on track for a sub 2:30 finishing time!
Update: Matt's split half-way: 01:14:37 – still on target!
Update: Matt's struggling a little, but it still looks like a new PR for him – 2:07:26 at 35K!
Matt crosses the line in 2:38:42, 165th place overall! Congratulations!!