Chase Utley’s first career MLB hit was a Grand Slam HR off Colorado Rockies Aaron Cook on April 24^th, 2003.

Flyers tough guy Dave “the hammer” Schultz had an NHL Record 42 PIMs in a playoff game on April 22^nd, 1976 vs. Toronto Maple Leafs.

On April 22^nd 2018, Flyers Sean Couturier scored 3 goals and added two assists for a 5-point playoff night. The Flyers lost 8-5 to the Pittsburgh Penguins and were eliminated 4 games to 2.

On April 21st, 2018, Sixers rookie Ben Simmons became just the 5^th NBA rookie to ever have a triple double in an NBA playoff game, and the 1st since 1980, in a 106-102 game 4 win over the Miami Heat (Magic Johnson, Kareem Abdul-Jabbar, Jerry Lucas, and Tom Gola).

On April 20^th, 2003, Allen Iverson had a team-record 55 points in a playoff game in a 107-103 victory over the New Orleans Hornets.

On April 17^th, 1965 Los Angeles Dodgers pitcher Don Drysdale had 4 strikeouts against the Phillies in the 2^nd inning of a Phillies 3-2 win. It was just the 11^th 4-strikeout inning in MLB modern era.

On April 17^th, 1976 in a game against the Chicago Cubs, Mike Schmidt not only hit 4 Home Runs, but three of the four were off brothers. Schmidt hit his first two off starter Rick Reuschel, his 3^rd off Mike Garman, and his 4^th off Paul Reuschel. Schmidt finished with 8 RBIs. The game at Wrigley Field featured 9 home runs (6 by the Phils) and was won by the Phillies 18-16 in 10 innings. 

On April 16^th, 2018, Phillies relief pitcher Victor Arano threw a perfect 8th inning vs Atlanta Braves in a 2-1 loss, getting 3 outs on 3 pitches. The outs were the 20^th, 21^st, and 22^nd consecutive outs (6 appearances) for Arano to start the 2018 season.

On April 15^th, 2008, Flyers Mike Richards scored on a penalty shot vs Washington Capitals.

On April 14^th, 2018, the Sixers scored 18 3-point buckets in a 130-103 game 1 win over the Miami Heat in the 2018 playoffs. The Sixers shattered their previous team record of 11  3-pointers in a playoff game.  Six days later, in game 3 of the series, the Sixers once again hit 18 3-pointers in a 128-108 game 3 win.

On April 14^th, 2005, the Sixers scored a team-record 22 points in overtime in a 126-119 victory over the Miami Heat.

On April, 13^th, 1985 vs New York Rangers, Flyers Tim Kerr scored the fastest 4 goals in one period in a playoff game (8:16).     

On April 13^th, 2012 vs Pittsburgh Penguins, Flyers Claude Giroux scored a team-record 6 points in a playoff game (3g 3a).

Lucky Friday the 13^th for Flyers Center Sean “Jason Voorhees” Couturier. On Friday April 13^th, 2012 in a playoff game in Pittsburgh, Coots had a hat trick and an assist. Exactly 6 years later, on Friday April 13^th, 2018 in a playoff game in Pittsburgh, Coots had 3 assists giving him 7 career playoff points, all coming on Friday the 13ths in Pittsburgh.

On April 12^th, 1973, the Flyers won their 1^st playoff series knocking off the Minnesota North Stars 4 games to 2.