Historical clue formulations

• *It's signaled by a white flag on the racetrack — 2016-10-17
• It's signaled with a white flag — 2011-07-22
• Track climax — 2006-06-10
• Checkered flag preceder — 2006-05-09
• Close of a swimming race — 2005-03-21
• Exciting time at 82-Across — 2004-05-30
• Race climax — 2003-09-13
• Race climax — 2003-07-19