b'WINEGLASS CHALLENGESThe Pinot Challengeand the Riesling Challenge Each year as part of the Wineglass Race Series, we sponsor two exciting, three-race Challenges for our runners. Both Challenges begin with our Wineglass 8K on Memorial Day Weekend. Complete either of these Challenges to receive a special commemorative award during Wineglass Weekend each fall!10 WINEGLASSMARATHON.COM'