Michael Plumb, American equestrian

John Michael Plumb is an American equestrian and Olympic champion who competes in the sport of three-day eventing. He holds the title of the US Olympic competitor who has competed in the greatest number of Olympics, winning two team gold medals, three team silvers and one individual silver.

March 28 is the 87th day of the year in the Gregorian calendar; 278 days remain until the end of the year.