On August 28, 2008, Major League Baseball instituted an instant replay system in games to help decide some home runs calls. There are only three situations in which the replay can be used: (1) Was the potential homer fair or foul? (2) Did a fan interfere with a potential homer? (3) Did a potential homer go over the fence?
It is up to the crew chief to decide whether or not to use the replay system. A team cannot request or demand that it be used. Once the replay has been viewed and the umpires make their decision, no appeals are allowed and teams are not allowed to argue the call.
This system was put in place because of a series of calls in a 10-day period earlier that season which drew a lot of attention.
There was a use of a homer replay in 1999 before they were authorized. Details
Prior Year Instances:
2018 (18 times, 5 changed, 13 upheld)
3/30 HOU @ TEX
Shin-Soo Choo's fly to left hit the top of the wall and bounced back into the field for a double. Crew chief Jerry Meals asked for a replay review, which confirmed the call.
4/1 PIT @ DET, Game 2
4/3 CLE @ ANA
Rene Rivera's drive to right in the bottom of the eighth hit the scoreboard well above the yellow line, which is a lower "fence" for a homer in Anaheim this year, and bounced back into the field. It was ruled in play for a double, but the review requested by crew chief Mark Wegner overturned the call to a home run.
4/4 MIN @ PIT
IN the top of the fourth, Miguel Sano's fly to right hit above the scoreboard and below the yellow line and bounced back into the field for a double. The replay ordered by crew chief Fieldin Culbreth confirmed the call.
4/5 NYN @ WAS
Michael Conforto's fly in the top of the fifth just cleared the wall into the flower bed and bounced back into the field. It was ruled in play for a double, but the review requested by crew chief Joe West overturned the call to a home run.
4/7 MIA @ PHI
In the bottom of the fourth, Maikel Franco's fly to left center hit the top of the wall and bounced against a short fence back into play for a double. The replay review ordered by crew chief Kerwin Danley confirmed the call.
4/9 SDN @ COL
In the bottom of the sixth, Carlos Gonzalez's fly to left landed in Corry Spangenberg's glove, but he was unable to hold onto the ball, which dropped into the stands, as his glove hit the top of the wall. However, a fan whose hands were on the yellow line at the top of the fence, but not over the fence into the field of play, may have touched the glove and caused the dropped ball. It was ruled a homer, and the call was upheld after the review ordered by crew chief Brian Gorman. Padres manager Andy Green came out to argue about the call and was immediately ejected as that is not allowed.
4/9 HOU @ MIN
In the bottom of the ninth, Byron Buxton hit a fly down the left line that would have tied the game if fair, but it curved foul. That ruling was confirmed by the review requested by crew chief Alfonso Marquez.
4/11 MIL @ SLN
In the bottom of the ninth, Tommy Pham's drive to left hit the screen just above the wall and bounced back into the field for a double. After the review asked for by crew chief Bill Welke, the ruling was overturned to a home run.
4/11 CIN @ PHI
Scooter Gennett's fly to left in the top of the ninth hit the top of the wall and bounced back into play for a double. That call was confirmed by the replay review requested by crew chief Jerry Meals.
4/14 ARI @ LAD
In the top of the fourth with runners on first and third, Deven Marrero hit a fly to left center that just cleared the wall. Alex Avila, the runner on first started back to the bag to tag up and Marrero briefly passed behind and ahead of him. The play was first ruled to be a three-run homer, but the replay ordered by crew chief Brian Gorman overturned to a two-run single.
4/17 CLE @ MIN, played in San Juan, Puerto Rico
In the top of the eighth, Yonder Alonso's high fly down the right field line went over the pole, which does not extend as high as in a major league park. It was ruled a home run, and after the review requested by crew chief Gary Cederstrom, the call stood. As a note, the replay review was not done in New York but locally by a fifth umpire.
4/18 TEX @ TBA
Renato Nunez's fly to right in the top of the fifth was caught by a fan who reached over the top of the fence. It was ruled a double, which was upheld after the replay review about possible fan interference requested by crew chief Alfonso Marquez.
4/20 BOS @ OAK
Chad Pinder hit a fly down the right field line in the bottom of the first that curved foul. It was ruled that way, which was upheld by the review requested by crew chief Brian Gorman.
4/21 CHN @ COL
In the top of the first, Willson Contreras hit a fly to center that hit the top of the wall and bounced into play for a double. A fan had reached with a glove for the ball and may have touched it. The replay review ordered by crew chief Greg Gibson upheld to call.
4/21 SEA @ TEX
Nelson Cruz's high fly down the left field line in the top of the fourth went just above the pole and was ruled to be foul. The review ordered by crew chief Gary Cederstrom upheld the call. However, Cruz hit a homer to left later in the at bat.
4/22 PIT @ PHI
In the bottom of the eleventh, Andrew Knapp's drive to left hit the short fence above the wall and took an unusual bounce back into the field, which enabled him to reach third for a triple. The review asked for by crew chief Bill Welke confirmed that outcome.
Reason for Review Total Reversed Upheld
Fair/Foul 180 43 137
Fan Interference 135 26 109 (including one in wrong situation in 2009)
Over the Fence 481 160 321
Two calls reversed due to a runner being passed on the bases.
Crew Chief Total Reversed Upheld
Ted Barrett 22 3 19
Wally Bell 12 2 10
Mark Carlson 5 1 4
Gary Cederstrom 48 16 32 (including one in wrong situation in 2009)
Eric Cooper 2 0 2
Derryl Cousins 14 4 10
Jerry Crawford 2 0 2
Fieldin Culbreth 32 9 23
Kerwin Danley 2 1 1
Gary Darling 13 3 10
Bob Davidson 6 1 5
Gerry Davis 45 17 28
Dana DeMuth 40 14 26
Laz Diaz 1 0 1
Paul Emmel 6 1 5
Mike Everitt 14 6 9
Greg Gibson 9 4 5
Brian Gorman 37 11 26
Tom Hallion 29 7 22
Angel Hernandez 4 2 2
John Hirschbeck 26 4 22
Sam Holbrook 12 2 10
Dan Iassogna 5 0 5
Jim Joyce 13 2 11
Jeff Kellogg 36 11 25
Ron Kulpa 6 2 4
Jerry Layne 32 7 25
Randy Marsh 2 2 0
Alfonso Marquez 8 1 7
Tim McClelland 15 5 10
Jerry Meals 25 7 18
Bill Miller 23 6 17
Paul Nauert 2 0 2
Jeff Nelson 26 6 20
Brian O'Nora 7 4 3
Ed Rapuano 2 2 0
Rick Reed 2 1 1
Mike Reilly 3 2 1
Charlie Reliford 1 0 1
Jim Reynolds 6 1 5
Dale Scott 37 18 19
Tim Timmons 3 2 1
Tim Tschida 20 6 14
Larry Vanover 18 3 15
Mark Wegner 5 3 2
Bill Welke 7 3 4
Tim Welke 30 8 22
Hunter Wendelstedt 1 0 1
Joe West 40 11 29
Mike Winters 42 9 33
Park Total Reversed Upheld
Anaheim: Angel Stadium 33 8 25
Arlington: Globe LIfe Park 22 8 14
Atlanta: Turner Field 7 2 5
Atlanta: SunTrust Park 3 1 2
Baltimore: Camden Yards 36 11 25
Boston: Fenway Park 54 15 39
Chicago: Guarenteed Rate Field 14 3 11
Chicago: Wrigley Field 14 7 7
Cincinnati: Great American Ballpark 39 9 30
Cleveland: Progressive Field 29 6 23
Denver: Coors Field 16 4 12
Detroit: Comerica Park 31 14 17
Houston: Minute Maid Park 38 9 29
Kansas City: Kauffman Stadium 27 3 24
Los Angeles: Dodger Stadium 13 4 9
Miami: Sun Life Stadium 6 3 3
Miami: Marlins Park 11 6 5
Milwaukee: Miller Park 18 8 10
Minneapolis: Metrodome 1 0 1
Minneapolis: Target Field 34 8 26
New York: Citi Field 35 18 17
New York: Yankee Stadium II 25 7 18
Oakland: Oakland-Alameda Co Stadium 15 2 13
Philadelphia: Citizens Bank Park 35 14 21
Phoenix: Chase Field 33 8 24
Pittsburgh: PNC Park 39 8 31
St. Louis: Busch Stadium III 19 7 12
St. Petersburg: Tropicana Field 38 10 28 (including one in wrong situation in 2009)
San Diego: PETCO Park 17 6 11
San Francisco: AT&T Park 25 6 19
San Juan: Estadio Hiram Bithorn 1 0 1
Seattle: Safeco Field 23 4 19
Toronto: Rogers Centre 13 2 11
Washington: Nationals Park 26 6 20