If you're not running or walking in the Brooksie Way — or cheering on a friend who is running or walking the half-marathon through Rochester and Rochester Hills — you're likely trying to stay away from it.

Here's what you need to know to avoid the road closures.

Starting at 7 a.m. Sunday, follow this story for live updates of road closings and openings. You can also follow us on Twitter (@RochesterPatch).

The basics

There are three races: the half-marathon, a 5K and a 1-mile fun run. They'll start, staggered, beginning at 8 a.m. at Meadow Brook Music Festival on the Oakland University campus.

The basic route for the half-marathon involves these roads and trails (follow the attached map for a visual):

• Walton
• Old Perch
• Avon
• Clinton River Trail
• University (in downtown Rochester)
• Pine Street (through the Rochester Municipal Park)
• Paint Creek Trail
• Tienken
• Brewster
• Dutton
• Adams
• Walton

What's closed when

Roads: Walton, from the OU entrance to Adams.

• Approximate times: 7:45 a.m. to noon.
• Of note: The race begins and ends at Meadow Brook Music Festival, on this busy corner of town.

Roads: Adams, from Walton to Hillendale across from the OU entrance.

• Approximate times: 7:45 a.m. to 9 a.m.
• Of note: Once runners have cleared Walton, northbound Adams traffic will be allowed to Walton, then will be directed eastbound on Walton.

Roads: Walton, from Adams to Old Perch.

• Approximate times: 7:45 to 9 a.m.
  
• Of note: This is the beginning stretch of the half-marathon.
  

Roads: Old Perch and Avon through the Livernois intersection.

• Approximate times: 7:45 to 9 a.m.
  
• Of note: Runners will catch the Clinton River Trail east of Livernois near the River Crest Banquet Center.
  

Roads: University through downtown Rochester.

• Approximate times: 8:20 to 10 a.m.
  
• Of note: Runners will go off the Clinton River Trail after crossing under Rochester Road south of downtown. They'll run past the Royal Park Hotel and the Rochester Hills Public Library, crossing Rochester Road and finding Rochester Municipal Park off Pine Street.
  

Road: Tienken

• Approximate times: 9:15-10:45 a.m.
  
• Of note: Marathoners will take the Paint Creek Trail to Tienken Road, then travel west. There will be a half-mile of east-west traffic access on the south side of the road from Brewster Road to Brookwood, near the Brookwood and Fairview Farms subdivisions.

Roads: Brewster and Dutton

• Approximate times: 9:15-11:15 a.m.
  
• Of note: The route continues north on Brewster Road, then west on Dutton Road. Southbound traffic will be allowed on Brewster from Lambeth Park to Tienken Road. Brewster Road south of Tienken is open.

Roads: Adams

• Approximate times: 7:30 a.m.-noon
  
• Of note: When they turn south off Dutton Road, runners and walkers will be on the home stretch. The race ends when they cross Walton and enter the OU campus.

All roads should be reopened to some traffic starting at 1 p.m.

Suggested alternate routes

From the South: East on Avon to Dequindre.  North on Dequindre to Runyon.  West on Runyon to Washington.  North on Washington to Winkler Mill.  West  on Winkler Mill to Mead.  West on Mead to Rochester.

From the North: East on Mead to Winkler Mill.  South on Winkler Mill to Washington. West on Washington to Runyon.  East on Runyon to Dequindre.  South on Dequindre to Avon.  West on Avon to Rochester.