Mariner rookie Tyler Olson’s first big league outing takes only five seconds when he throws just one pitch, inducing Erick Aybar to ground into a 5-4-3 inning-ending double play in the top of the ninth in the team’s 2-0 loss to the Halos at Safeco Field. The freshman southpaw is most likely the first hurler in history to retire two hitters throwing only one pitch in his major league debut.

2015 – For the second straight night, the Rockies hit six doubles to tie a major league record that had stood for 103 years with 12 in their first two games. They defeat the Brewers, 5 – 2, one night after opening the season with a 10 – 0 blanking of those same Brewers. Surprisingly, the barrage of extra-base hits takes place not in Coors Field but in Miller Park.

The Mets start 41 year-old Bartolo Colon on Opening Day, much to the chagrin of the fan base who hoped one of their young guns, Matt Harvey and Jacob deGrom, would get the coveted assignment. The oldest pitcher ever to get the nod on Opening Day in franchise history doesn’t disappoint when he gives up one run on three hits, besting Washington’s $210 million ace Max Scherzer in the team’s 3-1 victory at Nationals Park.

On Opening Day, the Rays retire number No. 66 in honor of their late senior baseball adviser Don Zimmer, who passed away in June at the age of 83. ‘Popeye’, who was a player, coach, and manager with a dozen different teams, wore the number in his final season with the organization to represent the number of years he worked in professional baseball.

2015 – P Sonny Gray is sharp starting on Opening Day for the A’s, as he holds the Rangers hitless until Ryan Rua leads off the 8th with a single. Oakland prevails easily, 8 – 0, and in doing so breaks a string of 10 straight losses in their opening game of the season.

The day before the season begins, A.J. Preller continues his makeover of the Padres, acquiring All-Star closer Craig Kimbrel and outfielder Melvin Upton Jr. from the Braves for outfielders Carlos Quentin and Cameron Maybin, minor league right-hander Matt Wisler, outfield prospect Jordan Paroubeck, and the 41st overall draft pick. The San Diego GM increases the club’s payroll significantly to pull off the stunning deal, with most of the cost involving taking on the remaining $46.35 million still owed Upton, who will now join his brother B.J. as a teammate.

The opening game of the 2015 Major League Baseball season is a 3 – 0 win by the Cardinals over the Cubs as Adam Wainwright gets the better of marquee free agent signee Jon Lester. RF Jason Heyward has three hits, including a pair for extra bases, and scores his team’s first run in his first game for St. Louis, while LF Matt Holliday drives in two runs. For the occasion, venerable Wrigley Field unveils a new state-of-the-art video scoreboard.

2015 – Major League Baseball suspends P Ervin Santana, who signed the largest free agent contract in Twins history this off-season, for 80 games for testing positive to the anabolic steroid stanozolol. Santana claims he never knowingly took a banned substance.

2015 – The Diamondbacks trade P Trevor Cahill to Atlanta for minor league OF Josh Elander in a move designed to allow top prospect Archie Bradley to join Arizona’s starting rotation.