Possible Clues:

• Swinburne wrote - in Calydon
• Olympic venue playing host to a legendary runner
• Runner in Greek mythology
• Runner first appearing in Olympic venue
• Classical runner first seen in US city
• US state capital welcoming a runner
• She had a legendary run entertaining a city in America
• Huntress, one entering Georgian city
• Fleet-footed Greek maiden
• Olympic venue admits a legendary runner ...