The Battle of Tom's Brook was fought on October 9, 1864, in Shenandoah County, Virginia during Philip Sheridan's Shenandoah Valley Campaign of the American Civil War. It resulted in a significant Union victory, one that was mockingly dubbed The Woodstock Races for the speed of the Confederate withdrawal.

After his victory at Fisher’s Hill, Maj. Gen. Philip Sheridan pursued Jubal Early’s Confederate army up the Shenandoah Valley to near Staunton. On October 6, Sheridan began withdrawing, as his cavalry burned everything that could be deemed of military significance, including barns and mills. Reinforced by Joseph B. Kershaw’s division, Early followed. Maj. Gen. Thomas L. Rosser arrived from Petersburg to take command of Fitzhugh Lee’s Confederate cavalry division and harassed the retreating Federals. On October 9, Alfred Torbert’s Union troopers turned on their pursuers, routing the divisions of Rosser and Lunsford Lomax at Tom’s Brook. With this victory, the Union cavalry attained overwhelming superiority in the Valley.

Reference

• National Park Service description of the Battle of Tom's Brook

Battles of the American Civil War | Battles of Sheridan's Valley Campaign of the American Civil War