1905 — Belmont Park in New York opens for its first thoroughbred meet.
1935 — Omaha, ridden by Willis Saunders, wins the Kentucky Derby by 1 1/2 lengths over Roman Soldier. Omaha goes on to win the Triple Crown.
1946 — Assault, ridden by Warren Mehrtens, wins the Kentucky Derby by eight lengths over Spy Song on his way to the Triple Crown.
1957 — Iron Liege, ridden by Bill Hartack, wins the Kentucky Derby by a nose when jockey Willie Shoemaker, aboard Gallant Man, misjudges the finish line. Shoemaker is in front but stands the saddle before the finish.
1968 — Dancer’s Image, ridden by Bob Ussery, wins the Kentucky Derby by 1 1/2 lengths over Forward Pass. Three days later, Dancer’s Image is disqualified when traces of a painkiller are found in tests. Forward Pass, ridden by Ismael Valenzuela, is declared the winner.
1968 — The Pittsburgh Pipers beat New Orleans Buccaneers 122-113 in Game 7 to win the first ABA championship.
1969 — The Montreal Canadiens win the Stanley Cup with a four-game sweep, beating the St. Louis Blues 2-1.
1994 — Charles Barkley scores 56 points, including a playoff-record 38 in the first half, to lead the Phoenix Suns to a 140-133 victory over the Golden State Warriors.
1999 — The New Jersey Devils become the first top-seeded team to lose in the first round of the playoffs in consecutive years when they are beaten 4-2 to the Pittsburgh Penguins in Game 7.
2000 — Keith Primeau ends the third-longest game in NHL history by scoring at 12:01 of the fifth overtime to give the Philadelphia Flyers a 2-1 victory over the Pittsburgh Penguins, tying their Eastern Conference semifinal series at two games apiece.
2003 — Detroit becomes the seventh NBA team to advance after falling behind 3-1 in a series, beating Orlando 108-93.
2008 — In the eighth longest game in NHL history, Dallas eliminates San Jose in Game 6 of the Western Conference semifinals. In a game that lasts 5 hours, 17 minutes, the Stars beat the Sharks 2-1 after Brenden Morrow scores a power play goal 9:03 into the fourth overtime.
2009 — Cleveland’s LeBron James, unstoppable at both ends of the floor this season, is named the NBA’s MVP. James, who easily outdistanced Kobe Bryant of the Los Angeles Lakers in the voting, averaged 28.4 points, 7.6 rebounds and 7.2 assists.
2009 — Alex Ovechkin records his first NHL playoff hat trick and scores the winning goal in Washington’s 4-3 win over Pittsburgh in Game 2 of their Eastern Conference series. Sidney Crosby of the Penguins also scores three goals.
2013 — Floyd Mayweather comes back from a year’s absence to win a unanimous 12-round decision over Robert Guerrero in their welterweight title fight in Las Vegas. All three judges score the bout 117-111 and Mayweather remains unbeaten in 44 fights.
2016 — J.R. Smith makes seven 3-pointers and the Cleveland Cavaliers drain an NBA-record 25 3s in a 123-98 win over the Atlanta Hawks in Game 2 of the second round. Cleveland finishes 25 of 45 behind the arc, with 10 players making at least one 3. Cleveland’s 25 3s are the most in any game — regular or postseason.