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Jeff Zimmerman

Jeff Zimmerman

Jeff Zimmerman writes about all things Baseball for RotoWire. He also handles scouting and reporting for PrepBaseballReport.com. Jeff also contributes to RoyalsReview.com, FanGraphs.com and BaseballHeatMaps.com.

Fantasy sports articles written by Jeff Zimmerman

The Saber's Edge: BABIP Swings

Lonnie Chisenhall's 2014 breakout has been fueled by a significant shift in BABIP. How rare is an increase of that magnitude? Jeff Zimmerman dives into the numbers.

The Saber's Edge: ERA Estimators

Even if Johnny Cueto regresses to the level of his ERA estimators, he'll still be elite, but can he stay healthy in the second half? Jeff Zimmerman looks for hidden value on the mound.

The Saber's Edge: A Look at Batted Ball Profiles

Dallas Keuchel doesn't have an elite strikeout rate, but he has parlayed his high groundball rate and infield flyball rate into a breakout campaign in 2014.

The Saber's Edge: Good Bet To Succeed?

Is Mookie Betts a good bet to become a productive big league hitter? Jeff Zimmerman breaks down the current crop of hitting prospects to find the players most likely to become productive bats at the top level.

The Saber's Edge: Tracking Home Runs

Jose Abreu has provided even more power than expected through his first two-plus months in the big leagues. Can he sustain that level of home-run production?

The Saber's Edge: Targeting BB% Improvements

Madison Bumgarner had room for improvement with his walk rate entering 2014. Jeff Zimmerman explains the hidden value in pitchers with room to improve their control.

The Saber's Edge: Elite Once More?

Finally healthy again, Johnny Cueto has delivered a huge profit through the first two months of the season. What level can he sustain the rest of the way? Jeff Zimmerman ponders that question.

The Saber's Edge: Upon Further Review: Eric Hosmer

Where has Eric Hosmer's power gone? Jeff Zimmerman breaks down the tape to determine why the home runs have disappeared for the Kansas City first baseman.

The Saber's Edge: Down Goes Brown

Where has Domonic Brown's power gone? Jeff Zimmerman takes a look at the early-season indicators that can reveal skills loss.

The Saber's Edge: Freak the Mighty, Again?

Tim Lincecum's dominant start against the Braves earlier this week has left some to wonder if he's returning to his once-elite form. Jeff Zimmerman breaks down the impact of swing-and-miss lineups on starting pitching performances.

The Saber's Edge: A Closer Look at Home Runs

Jose Abreu has shown excellent power early on, but is a correction on the horizon? Jeff Zimmerman takes a closer look at early home run and flyball data.

The Saber's Edge: Red Light, Green Light

While Starlin Castro is rebounding from a dismal 2013 at the plate, he no longer looks like a threat to steal 20 bases. Jeff Zimmerman takes a look around the league at early stolen-base indicators.

The Saber's Edge: Predicting ERA

Should you Buy High on Ervin Santana? Jeff Zimmerman shares his plan of attack for predicting ERA based on other early-season metrics.

The Metric System: Predicting Batting Average

Few metrics have stabilized to this point in the season, but there is enough data to put the pieces together for expected batting averages. Jeff Zimmerman explains...