Here’s what’s happening this weekend in Chester County Datebook.

On Friday, Bike Chester County will host a fun bike ride to the Sullivan’s Bridge ribbon cutting from 9:30-11 AM at the Schuylkill River Trail in Phoenixville.

The Coatesville Youth Initiative will host its Fourth Annual Coatesville Back to School Event from 3-6 PM at Scott Middle School in Coatesville.

The Resident Theatre Company will host New York Theatre in West Chester — “The Last Five Years” at 7:30 PM at the Chester County Historical Society in West Chester.

On Saturday, The Resident Theatre Company will host New York Theatre in West Chester — “The Last Five Years” at 7:30 PM at the Chester County Historical Society in West Chester.

The Greater West Chester Chamber of Commerce will host the Iron Hill Twilight Race Series at 3:45 PM in downtown West Chester.

There are no events scheduled for Sunday.

List your organization, company or community event on VISTA Today’s calendar and daily Datebook posts. Contact Lance Knickerbocker at lhknickerbocker@gmail.com for details.