Mystic — The Hartford Marathon Foundation, which will stage the popular Mystic Half Marathon and 10K on Sunday, has announced a series of road closures during the event that begins around 7 a.m. About 2,000 runners are slated to compete.

The following closures will be in effect:

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[naviga:li]Coogan Boulevard from Maritime Drive to Jerry Browne Road from 6:55 to 10 a.m.[/naviga:li]

[naviga:li]Route 27 from Coogan Boulevard to Holmes Street, and Holmes Street from 6:55 to 7:10 a.m.[/naviga:li]

[naviga:li]Route 1 from Holmes Street to Pearl Street and Pearl Street from 7 to 7:30 a.m.[/naviga:li]

[naviga:li]Grove Street and River Road from 7:10 to 8:10 a.m.[/naviga:li]

[naviga:li]Jerry Browne Road from Route 27 to Coogan Boulevard and Deer Ridge Road from Jerry Browne Road to Jacobs Way from 7:30 to 8:45 a.m.[/naviga:li]

[naviga:li]Jerry Browne Road from Coogan Boulevard to Mistuxet Avenue, and Mistuxet Avenue from 7:30 to 10 a.m.[/naviga:li]

[naviga:li]Deans Mill Road, Flanders Road and Pellegrino Road from 7:40 to 10 a.m.[/naviga:li]

[naviga:li]Route 27 from River Road to Jerry Browne Road will have alternating one-way traffic from 7:20 to 8:25 a.m. Expect minor delays and use caution, as runners will be on the road.[/naviga:li]

[naviga:li]Pequot Trail from Deans Mill Road to Flanders Road will be open to traffic from 7:40 until 10 a.m. with runners on the road.[/naviga:li]

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In announcing the closures, the marathon foundation said it "makes every effort to minimize the impact of the race on local roads and neighborhoods while bringing participants in to enjoy the Stonington and Groton communities." The foundation suggests that those affected by the closures seek alternate routes during the race.

More race details are at bit.ly/MysticHalfMarathon.