**If pitch was used <5% of the time in 2014, I will be including it on this list**
(12/1/14) Jordan Lyles - Split-finger changeup
(12/22/14) Nate Eovaldi - more & improved changeups & a splitter
(12/29/14) Justin Verlander - a two-seamer or a cutter
(1/11/15) Ryan Tepera - Splitter
(1/20/15) Jose Berrios - 2-seam fastball
(2/11/15) Nick Greenwood - side-arm breaking ball
(2/14/15) Seth Maness - improving his rarely-used curveball
(2/14/15) Lance Lynn - working on a changeup that "is going to be a force"
(2/14/15) Adam Wainwright - bringing his changeup back
(2/19/15) Marco Gonzales - cutter (BrooksBaseball already had him using 2-seamer) & his breaking balls
(2/20/15) Tyson Ross - split-change
(2/21/15) Trevor Bauer - (improving rarely used) sinker & splitter
(2/22/15) David Carpenter - splitter
(2/22/15) Archie Bradley - slider/cutter
(2/24/15) Brett Oberholtzer - cutter
(2/24/15) Tsuyoshi Wada - cutter
(2/24/15) Shane Greene - more changeups
(2/24/15) Carlos Rodon - changeup
(2/25/15) Max Scherzer - cutter
(2/25/15) Devin Williams - curve
(2/25/15) Jorge DeLeon - splitter
(2/25/15) Craig Kimbrel - changeup
(3/1/15) Fernando Salas - more sinkers
(3/1/15) Taijuan Walker - scrapping cutter for a slider
(3/1/15) Joe Kelly - (increased usage of a) 4-seam fastball
(3/1/15) Carlos Martinez - taking mothballs off his changeup
(3/6/15) Jimmy Nelson - curveball (spike - per 3/14 broadcast)
(3/6/15) David Price - new curveball grip
(3/8/15) Asher Wojciechowski - shifting from 3B to 1B side of the rubber
(3/11/15) Jake Odorizzi - slutter (cutter/slider hybrid)
(3/11/15) James Paxton - 2-seam changeup (from 4-seam changeup)
(3/11/15) Wei-Yin Chen - going from circle-change to palmball grip
(3/12/15) Chase Whitley - curveball
(3/12/15) Tyler Danish - slider
(3/12/15) Chase DeJong - 2-seamer
(3/12/15) Dan Straily - new curveball grip
(3/12/15) Will Ferrell - Splurge
(3/13/15) Jesse Biddle - slider
(3/13/15) Aaron Sanchez - slutter
(3/15/15) Jarred Cosart - new changeup grip - wants to throw it more
(3/16/15) Brad Penny - cutter
(3/17/15) Tommy Hunter - split-change
(3/17/15) Clayton Richard - complete re-alignment
(3/17/15) Darren O'Day - changeup
(3/19/15) Raisel Iglesias - two-seamer
(3/23/15) Bryan Shaw - two-seamer
(3/23/15) Scott Feldman - re-worked changeup
(3/26/15) Nick Kingham - two-seamer
(3/26/15) Ben White - cutter
(3/26/15) Daniel Norris - new changeup grip
(3/26/15) Jake Peavy - changeup & splitter
(3/26/15) Brian Schlitter - slutter
(3/31/15) Robby Ray - rediscovering changeup
(4/8/15) Brad Boxberger - knuckle-curve (in-game observation + source)
(5/20/15) Sam Tuivailala - cutter
(12/1/14) Jordan Lyles - Split-finger changeup
(12/22/14) Nate Eovaldi - more & improved changeups & a splitter
(12/29/14) Justin Verlander - a two-seamer or a cutter
(1/11/15) Ryan Tepera - Splitter
(1/20/15) Jose Berrios - 2-seam fastball
(2/11/15) Nick Greenwood - side-arm breaking ball
(2/14/15) Seth Maness - improving his rarely-used curveball
(2/14/15) Lance Lynn - working on a changeup that "is going to be a force"
(2/14/15) Adam Wainwright - bringing his changeup back
(2/19/15) Marco Gonzales - cutter (BrooksBaseball already had him using 2-seamer) & his breaking balls
(2/20/15) Tyson Ross - split-change
(2/21/15) Trevor Bauer - (improving rarely used) sinker & splitter
(2/22/15) David Carpenter - splitter
(2/22/15) Archie Bradley - slider/cutter
(2/24/15) Brett Oberholtzer - cutter
(2/24/15) Tsuyoshi Wada - cutter
(2/24/15) Shane Greene - more changeups
(2/24/15) Carlos Rodon - changeup
(2/25/15) Max Scherzer - cutter
(2/25/15) Devin Williams - curve
(2/25/15) Jorge DeLeon - splitter
(2/25/15) Craig Kimbrel - changeup
(3/1/15) Fernando Salas - more sinkers
(3/1/15) Taijuan Walker - scrapping cutter for a slider
(3/1/15) Joe Kelly - (increased usage of a) 4-seam fastball
(3/1/15) Carlos Martinez - taking mothballs off his changeup
(3/6/15) Jimmy Nelson - curveball (spike - per 3/14 broadcast)
(3/6/15) David Price - new curveball grip
(3/8/15) Asher Wojciechowski - shifting from 3B to 1B side of the rubber
(3/11/15) Jake Odorizzi - slutter (cutter/slider hybrid)
(3/11/15) James Paxton - 2-seam changeup (from 4-seam changeup)
(3/11/15) Wei-Yin Chen - going from circle-change to palmball grip
(3/12/15) Chase Whitley - curveball
(3/12/15) Tyler Danish - slider
(3/12/15) Chase DeJong - 2-seamer
(3/12/15) Dan Straily - new curveball grip
(3/12/15) Will Ferrell - Splurge
(3/13/15) Jesse Biddle - slider
(3/13/15) Aaron Sanchez - slutter
(3/15/15) Jarred Cosart - new changeup grip - wants to throw it more
(3/16/15) Brad Penny - cutter
(3/17/15) Tommy Hunter - split-change
(3/17/15) Clayton Richard - complete re-alignment
(3/17/15) Darren O'Day - changeup
(3/19/15) Raisel Iglesias - two-seamer
(3/23/15) Bryan Shaw - two-seamer
(3/23/15) Scott Feldman - re-worked changeup
(3/26/15) Nick Kingham - two-seamer
(3/26/15) Ben White - cutter
(3/26/15) Daniel Norris - new changeup grip
(3/26/15) Jake Peavy - changeup & splitter
(3/26/15) Brian Schlitter - slutter
(3/31/15) Robby Ray - rediscovering changeup
(4/8/15) Brad Boxberger - knuckle-curve (in-game observation + source)
(5/20/15) Sam Tuivailala - cutter
Comment