The annual Ironman 70.3 Boise is tomorrow and with 1,200 competitors swimming, biking and running through town, traffic will be affected. Here's what you need to know.

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I am in awe of these athletes! The swim 1.2 miles in Lucky Peak, they bike 56 miles and then run a half marathon, 13.1 miles! The word "stud" comes to mind! Did you know that the most decorated American Winter Olympian in history is competing tomorrow? Apolo Anton Ohno makes is his debut as a triathelete at the Ironman 70.3 Boise! That is pretty cool! If you are looking for something fun to do with the family tomorrow, head out and cheer on these competitors!

The race will start at noon at Lucky Peak's Barclay Bay and finishers will end up at Julia Davis Park. That means roads from Hwy 21 through east Boise and then into downtown Boise will be affected.