How have the Seattle Mariners Top Prospects Fared this Spring?

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Next released their annual list of the top 30 prospects in the Seattle Mariners’ organization on Monday morning. There are some familiar names on the list, but there is also a fair amount of new faces. Jonathan Mayo, scouting guru for, broke down the list, and discussed some of his favorites.

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The Mariners have a very balanced list of top prospects. There are two catchers, two first basemen, three third basemen, and three shortstops on the list. Eight of the Mariners top 30 prospects are outfielders. The M’s have 12 hurlers on the list, six righties and six southpaws. The Mariners are a very deep organization at nearly every position, and this list speaks to the job General Manager Jack Zduriencik and his staff has done drafting.

Aug 24, 2013; Chicago, IL, USA; American catcher

Alex Jackson

(10) rounds second base during the 2013 Under Armour All-American Baseball game at Wrigley Field. Mandatory Credit: Reid Compton-USA TODAY Sports

Alex Jackson is considered to be the Mariners’ top prospect entering the 2015 season. Jackson was selected sixth overall by the M’s this past June in the 2014 amateur draft. Jackson performed nicely for Seattle in the Arizona League, hitting .280 with 2 home runs and 16 RBI’s across 94 at bats. Jackson was a catcher in high school, but he projects as a corner outfielder in the big leagues. assigns grades from 20-80 for each tool a player possesses. Jackson leads the Mariners organization with a 60 hit tool and a 60 power tool. Nobody in the M’s system has more potential than Jackson, and you may see the 19-year-old in a Mariners’ uniform as early as 2017.

Many of the names featured on the list have played for the Mariners this spring in Cactus League action. Click through to the next slide to take a more in-depth look at the players who have seen significant time in a Mariners’ uniform this spring.