June 10, 1806 -- Harness racing is covered for the first time by a newspaper in the United States. New York's "Commercial Advertiser" reports a pacer named Yankee won the mile at Harlem Race Track.
June 10, 2000 -- Walter Case Jr. wins nine races at Pocono Downs in Pennsylvania.
June 10, 2000 -- Big Tom, driven by Joe Anderson, wins in 1:49.1 to set the track record for pacers at Balmoral Park in Crete, Illinios.
June 12, 1987 -- Mr Heckle, a two-year-old pacing colt, and Mrs Jeckle, a two-year-old pacing filly, become the first twin foals to face each other in a pari-mutuel race, meeting at Fairplex Park in California. Mr Heckles finishes third while Mrs Jeckle is sixth. The twins are by Skippers Subject out of Waltzing Breta.
June 13, 1980 -- James H Tup, driven by Don Irvine Jr., sets the world record for four-year-old geldings pacing on a half-mile track by winning in 1:57.2 at Northfield Park in Ohio.
June 14, 1989 -- Scott Robbins drives two horses that finish in dead heats for wins at Quad City Downs in East Moline, Illinois.
June 15, 1996 -- Walter Case Jr. wins nine races at Yonkers Raceway in New York. Case's winners go off at average odds of 4-1.
June 15, 1999 -- The Standardbred Retirement Foundation, which finds new homes and careers for trotters and pacers, places its 1,000th horse, Blue Misty.
June 16, 1998 -- Mac Action, driven by Steven Warrington, wins in 1:56.1 to set the track record for trotters at Harrington Raceway in Delaware.
June 16, 1998 -- Walter Case Jr. wins nine races at Yonkers Raceway in New York.