What tracks offer exchange wagering?

For Betfair to offer exchange wagering at a track they need to make arrangements with the operator of the track.  The list below are tracks that Betfair is offering as of May 21, 2016.  This list is likely to change fairly often.  Also note that In Play wagering is only available at some of these tracks.

Keeneland
Monmouth Park

Woodbine

Will Rogers Downs

Louisiana Downs

Emerald Downs

Evangeline Downs

Charles Town Races & Slots

Mountaineer Casino Racetrack & Resort

Meadowlands
Delta Downs
Hawthorne
Presque Isle Downs
Sam Houston
Turf Paradise
Turfway