Marathon runners will pass through this Train Box at miles 7.5 and 25.5. Half marathon runners will pass through it at mile 12.4.

In all instances, runners will approach the train box by following the blue line running from west to east on Davis St, starting at the green marker shown on the map. All runners will continue east until reaching the intersection of Davis & 2nd Ave.

The "regular" route follows the purple line to continue east on Davis St and then turn right (south) on Naito Pkwy to arrive at the location shown by the orange marker.

The "detour" route follows the red line to turn right (south) on 2nd Ave, then left (east) on Couch St to arrive at the location shown by the orange marker.

After reaching the location shown by the orange marker, all runners will follow the blue line to continue south on Naito Pkwy on the regular route.

The regular route and the detour route have both been measured and certified so that no matter which route a runner takes, their race results will be valid and certified.