So far in the 2010 Major League Baseball season Kevin Millwood of the Baltimore Orioles has given up the most home runs with 20. There are three pitchers who have given up 19 home runs.
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The team with the most home runs in the 2010 MLB season is the Toronto Blue Jays. As of September 25, 2010 they have 241 home runs. This includes the total of the major league leader Jose Bautista, who has belted 52 through 155 games.
Through the 2010 season, that would be Roger Maris who hit 61 home runs in 1961.
Jamie Moyer as of 6/27/2010.
Yovani Gallardo of the Milwaukee Brewers with 4.
Jose Batista of the blue jays has 50 with with 5 games to go in the season
As of October 1, 2010, Jose Bautista holds the Toronto franchise record with 54 home runs.
As of the start of the 2008 season, the most home runs David Ortiz has hit in a season is 54 in the 2006 season.
Albert Pujols hit 42 home runs in 2010. With this number, Pujols hit the second most home runs in the entire MLB behind Jose Bautista's 54.
Barry Bonds hit the most home runs in a season with 73 in 2001.
For the 2010 regular season, that was Eli Manning of the New York Giants with 25.