In 2010 Duffman saw 14 performances during 1 concert with 14 bands at 1 venue in 1 location.

Date Concert Venue Location
May 27, 2010 –
May 30, 2010
3rd Annual DelFest 2010
The Avett Brothers / Trampled by Turtles / Keller Williams / Railroad Earth / Gibson Brothers / Greensky Bluegrass / The Bridge / Cornmeal / Dailey & Vincent / Bearfoot / John Cowan / The Lee Boys / The Travelin' McCourys / Larry Keel & Natural Bridge Show all bands
  Photos   Setlists
Allegany County Fairgrounds Cumberland, Maryland, United States