Shelby Miller - Cardinals SP DOB: 10/10/90
Miller has been simply sensational in every start this year but one. In his 7 starts he has had K/BB ratios of 9/1, 11/1, 8/1, 4/7, 10/3, 7/1, 10/3. Aside from the 4/7 those are some phenomenal numbers. He has also had only one game where he allowed more hit than innings pitched when he allowed 6 hits in 5.2 innings during his second start of the season. He is still at least a year or two away from the Bigs but it is looking very likely that Miller will be a top 5 prospect on many lists next year.
Matt Harvey - Mets SP DOB: 03/27/89
The Mets had high hopes for Harvey when they drafted him 7th overall last year and so far he has yet to disappoint. Through 8 starts he has a 2.61 ERA with 46 K in 41.1 IP. Harvey doesn't have the ceiling Miller does but he looks like he should develop into a solid fantasy pitcher with a high K rate and solid control.
more prospects after the jump...
Wilmer Flores - Mets SS DOB: 08/06/91
Flores has been one of the youngest players at every stage of the minors he has played, yet, he has managed to perform well with the bat every time. Last season it looked like he may emerge as a power hitting shortstop when he slugged 36 2B and 11 HR as an 18 year old splitting time between A and A+. The power is missing this year as he has managed just as .092 ISO. Since he doesn't steal many bases he will need to hit for above average power and average if he is to be a fantasy standout.
Jonathan Singleton - Phillies LF/1B DOB: 09/18/91
Singleton appears over-matched at High A. He has struck out 35 times in 101 AB and has only 3 extra base hits. He has a .267 AVG but a .388 OBP thanks to 19 walks. He is very young for the level so it's not time to panic yet but the sudden jump in K% and lack of power have to be concerning.
Julio Rodriguez - Phillies SP DOB: 08/29/90
After putting up a 1.89 ERA last season, Rodriguez is back at it this year with a 2.17 ERA. He has been unhittable, allowing just 5.8 H/9. He has also struck out 38 in 37.1 IP. The one blemish is that he is allowing 4.1 BB/9. He will need that to improve as he reaches the higher levels as better hitters will make him pay for those walks. Still, Rodriguez is proving he has incredible stuff and is worth keeping an eye on for your keeper league.
Hak-Ju Lee - Rays SS DOB: 11/04/90
Lee's .383 AVG is impressive but not as much when you consider his BABIP is closer to .500 than it is to .400. Of his 44 hits only 10 have been for extra bases so you have to wonder what his line will look like when his BABIP normalizes.
Sebastian Valle - Phillies C DOB: 07/24/90
The PHillies young catcher has been getting it done with the bat this season. He has a triple slash of .337/.350/.520. The 1/21 BB/K ratio is a bad sign though and this hot streak with the bat may not last.