By Jay Jaffe
April 12, 2014

[mlbvideo id="32004859" width="600" height="336" /]

On Friday night, Madison Bumgarner became the first pitcher to hit a grand slam this season. The 24-year-old lefty — who bats right-handed — connected off Jorge De La Rosa during the fourth inning of the Giants' game against the Rockies in San Francisco.

Bumgarner is no stranger to round-trippers, having hit two of them back in 2012; the second of those came against another Colorado pitcher, Jhoulys Chacin. Friday's homer was the second by a pitcher this year following Gio Gonzalez's shot off Bartolo Colon on April 2. Via, here's the video:

It was the first grand slam by a pitcher since the Cubs' Travis Wood hit one last May 30. Even in this homer-heavy era, such events generally happen less than once a year; via the Play Index, here are the details of the previous 10 such slams, covering a period of 13 seasons:

Date  Batter  Team Opponent Pitcher 
9/29/01 Denny Neagle Rockies Brewers Jimmy Haynes
6/2/02 Robert Person Phillies Expos Bruce Chen
7/7/06 Dontrelle Willis Marlins Mets Jose Lima
6/23/08 Felix Hernandez Mariners Mets Johan Santana
9/22/08 Jason Marquis Cubs Mets Jon Niese
10/1/09 Chris Carpenter Cardinals Reds Kip Wells
5/21/10 Brad Penny Cardinals Angels Joel Pineiro
7/4/11 Shaun Marcum Brewers Diamondbacks Daniel Hudson
8/31/11 Jake Westbrook Cardinals Brewers Randy Wolf
5/30/13 Travis Wood Cubs White Sox Jake Peavy

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