Prospect Rankings No. 19: John Mayberry, Jr. – Phillies Nation

Prospect Rankings No. 19: John Mayberry, Jr.

mayberry 1John Mayberry, Jr., OF

Born: 12/21/1983 in Kansas City, Missouri

Height: 6’6”

Weight: 230

There is some familiarity with Mayberry, as he is one of just three Phillies prospects in the top 25 to already log time with the major league club. Mayberry’s experience with the Phils earlier this season made two things clear: he is capable of hitting major league pitching, but he also has work to do before he can do it consistently.

After originally being drafted in the first round by Pat Gillick’s Mariners in 2002, Mayberry went to school at Stanford for three years before entering back into the draft in 2005, when he was chosen 19th overall by the Texas Rangers. The Phils and Rangers swapped underwhelming prospects in Nov. 20, 2008, sending outfielder Greg Golson to the Lone Star State and bringing Mayberry’s Stanford swing to Philadelphia. The move was intended to bring a change of scenery to each player, but so far it is unclear whether Mayberry is on the way to maximizing his potential.

When Raul Ibanez spent time on the DL this season it made room for Mayberry to get the call-up, and he took advantage of it immediately. In his second major league at-bat he cranked a homer off Andy Pettitte at Yankees Stadium. John Sr., who spent 15 seasons and hit 255 homers in the majors, was in attendance to watch his son. But after that exciting debut, Mayberry’s stock fell. He failed to perform as a right-handed bat off the bench, hitting just .189 and striking out 22 times in 53 at-bats. Upon Ibanez’s return, Mayberry was sent down to triple-A and slumped horribly. He has come around lately, though it looks in retrospect as if he wasted a great opportunity early in the summer.

Mayberry has the range and athleticism to be an above-average corner outfielder, so long as he doesn’t show the lackadaisical play that was on display when he was up with the Phillies. His large frame and long arms give him great power when he gets his arms extended on a ball, but more often they become a hindrance as pitchers jam him inside or work down in the strike zone to make him reach. Until he can become a low-ball hitter with good zone recognition, he’ll continue to strike out at an awful rate against major league pitching.

With the Phillies outfield filled at the moment, and likely for the next year or two, Mayberry won’t be anything more than a bench bat anytime soon. Furthermore, with Dominic Brown and Michael Taylor rising through the farm system, he might soon be passed the next time a 5th outfielder is needed. But the potential is there – if he puts it all together – to be an effective 4th outfielder and strong fill-in when necessary.


Year   Level    G   AB     H    HR   RBI   BB   K   SB   AVG   OBP   SLG

2005   A-      71   265    67    11   26   26   71   7   .253   .341   .438

2006   A       126  459   123    21   77   59   117   9   .268   .358   .479

2007   AA/A+  132 489   115   30   83   48  126  16   .235   .311   .474

2008  AAA/AA 135 519   137   20   71   34  106  10   .264   .317   .480

2009   AAA    70   251    63    10   37   27   79   6   .251   .326   .442

2009   MLB    35   53     10     4    8     2    22   0   .189   .232   .453

RankingsAll previous prospect profiles can be found here, which is also on the left sidebar for easy viewing

19.  John Mayberry, Jr., OF
20.  Mike Cisco, RHP
21.  Freddy Galvis, SS
22.  Jonathan Pettibone, RHP
23.  Domingo Santana, OF
24.  Jonathan Singleton, 1B
25.  Drew Naylor, RHP

Click to comment


  1. Pat Gallen

    August 19, 2009 at 4:56 pm

    If he ever figures it out, he’s got 30 home run potential. Some guys do later on. Maybe Mayberry will do the same.

  2. Pingback:

  3. tom

    August 19, 2009 at 7:07 pm

    Wow…I love his raw potential…if he can be taught a little discipline his natural abilities could take him to a very high level…but if he is unwilling, able to learn, he is just going to be a could’ve been…but with his father in the picture, you have to keep a little faith!

  4. ryan

    August 20, 2009 at 3:02 am

    mayberry is not ready for the majors just yet. but i feel he can be a very very good player and post similar numbers as Jayson Werth is posting. he has a ton of power. the biggest thing i took away from being at spring training this year was my impression of Mayberry. you could tell he had all the talent in the world and was very close to maximizing it.

  5. Don M

    August 25, 2009 at 10:41 am

    you guys have to remember that Mayberry (and Bruntlett, and Cairo, etc) started Spring Training really hot, because most pitchers were working on building arm strength… and just throwing Fastball, Fastball, Fastball, Fastball..Fastball, Fastball ….

    I’m pretty sure that I could get a couple of hits too, If I knew what was coming every single pitch …

    Once they started mixing in some breaking pitches, Mayberry looked lost .. which is why he can’t and doesn’t hit-for-average

    Anyone counting on Mayberry to be “The Next Jayson Werth” is kidding themselves. Mayberry has a chance to up his batting average if he shortens his stroke.. his power numbers would go down, but his average would go up … he’s a poor man’s, Right-Handed Matt Stairs … at best

  6. IronPig

    March 20, 2010 at 3:09 am

    Forget spring training how bout his MLB debut.. yeah against pettite…. You didnt see
    j werth doing that on his debut so don’t be a downer chump.

  7. Israel Travel

    June 4, 2010 at 7:46 am

    I have exactly the same theme on my blog, its very nice but I was not able to follow your RSS feeds for some reason. Thanks anyways but you might want to check your blog.

Leave a Reply

Your email address will not be published. Required fields are marked *

Phillies Nation has been bringing Phillies fans together since 2004 with non-stop news, analysis, trade rumors, trips, t-shirts, and other fun stuff!

Browse the Archives

Browse by Category

Copyright Phillies Nation, LLC 2004-2016
Not Affiliated with Major League Baseball or the Philadelphia Phillies

To Top