2013 – Boston 3B Will Middlebrooks is the first batter to have a three-homer game this season, leading the Sox to a 13 – 0 win over the Blue Jays, part of a 4-for-5 day. The first two homers come off last year’s National League Cy Young Award winner, R.A. Dickey, who gives up five runs before recording an out in the 1st. Mike Napoli, Daniel Nava and Jacoby Ellsbury also go deep for Boston.

The International League’s Scranton/Wilkes-Barre RailRiders start a forest fire in a wooded area behind the outfield fence when they set off fireworks at a game at their newly-renovated ballpark.

Joan Carlos Pedroso becomes the 9th Cuban player to 300 home runs since the Castro revolution. The Isla de la Juventud slugger goes deep off Jonder Martinez in a 4 – 3 loss.

The Dodgers trade P Aaron Harang to the Rockies in return for C Ramon Hernandez. Colorado’s motivation for the deal is purely financial: they immediately designate Harang for assignment in order to trade him elsewhere.

The Upton brothers, playing together for the Braves, stun the Cubs. With Atlanta trailing 5 – 4, B.J. Upton leads off the bottom of the 9th with a homer off Carlos Marmol, and two batters later, Justin Upton hits a walk-off blast to give the Braves a 6 – 5 win, his second long ball of the game. They are the first pair of brothers to homer in the same inning since Billy and Cal Ripken did so for Baltimore in 1996.

The Dodgers trade P Aaron Harang to the Rockies in return for C Ramon Hernandez. Colorado’s motivation for the deal is purely financial: they immediately designate Harang for assignment in order to trade him elsewhere.

The Upton brothers, playing together for the Braves, stun the Cubs. With Atlanta trailing 5 – 4, B.J. Upton leads off the bottom of the 9th with a homer off Carlos Marmol, and two batters later, Justin Upton hits a walk-off blast to give the Braves a 6 – 5 win, his second long ball of the game. They are the first pair of brothers to homer in the same inning since Billyand Cal Ripken did so for Baltimore in 1996.

Cincinnati drills 6 homers to offer the Nationals their first defeat of the season, 15 – 0. Zack Cozart and Todd Frazier both go deep twice, and Shin-Soo Choo and Xavier Paul, with a pinch-hit grand slam, hit the other two. Homer Bailey is the winner over Dan Haren, whose debut for the Nats is one to forget.

The Giants celebrate their victory in the 2012 World Series by raising the World Championship banner before their home opener at AT&T Park, then celebrate some more by defeating the Cardinals, 1 – 0, behind a great performance by Barry Zito, who gives up only 3 hits over 7 innings. It is the 15th straight time that the Giants have won a game started by Zito, dating back to last season and including the postseason.

Chris Davis becomes the fourth player to homer in his team’s first four games of the season, joining Willie Mays, Mark McGwire and Nelson Cruz in elite company. His 8th-inning grand slam off Tyler Robertson propels the Orioles to a 9 – 5 win over the Twins in their home opener. With a sacrifice fly earlier in the game, Davis drives in 5 runs to bring his RBI total to 16 on the season, obliterating the old record of 12 after four games held by three players.