There was no regular line formation, but the Indian mode of fighting was adopted on both sides, by taking advantage of every stone, fence, bush, or hollow, to shelter the men.

Before the action was over Kilpatrick's command came up and took a prominent part.
Buford's division, which had advanced beyond Philemont on the Snicker's Gap road, also became warmly engaged.

They turned the left flank of the rebels and pressed on successfully, but the squadron left to guard the bridge over Goose Creek was overpowered by numbers and the bridge was burned.

Part of Pleasonton's force made a reconnoissance toward Warrenton and engaged Hampton's brigade there.
On the 19th Pleasonton held the positions he had gained and sent back for an infantry support.
As there were indications that the whole of Stuart's cavalry would be thrown on Gregg's division at Upperville, Pleasonton went forward with his entire force and a brigade of infantry to support it.
After a series of brilliant engagements he drove Start steadily back into Ashby's Gap, where he took refuge behind Longstreet's Corps, a portion of which came up.

Pleasonton then returned to Upperville and next day to Aldie.