This article is part of our DFS MLB series.
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Park Factors & Lines
Park factors in this piece are a three-year average from 2015-2017, indexed (100 = average). For example, left-handed home runs at Guaranteed Rate Field (home of the White Sox) have a three-year index of 122, which means there have been 22% more homers hit by lefties from all teams during that span in that park compared to a completely neutral environment. Left-handed hitters have a significant advantage when hitting at Guaranteed Rate Field.
AT&T Park (home of the Giants), has a three-year run index of 90, which means that games played at AT&T park have had 10% fewer runs scored overall than a completely neutral environment. Overall offensive production is reduced by a significant amount for games played in San Francisco, making it a safer environment than most for pitchers.
| Lefties | Righties | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Road Starter | Home Starter | Home Tm | R | AVG | HR | AVG | HR | K | O/U | HmL | 1st Pitch |
| J.A. Happ | Jimmy Yacabonis | Orioles | 106 | 103 | 114 | 101 | 121 | 94 | 1:05 PM | ||
| Luis Castillo | Jose Quintana | Cubs | 98 | 99 | 88 | 98 | 114 | 100 | 2:20 PM | ||
| Martin Perez | Andrew Suarez | Giants | 90 | 97 | 53 | 100 | 74 | 99 | 8.5 | -160 | 4:05 PM |
| Tanner Roark | Zack Wheeler | Mets | 90 | 93 | 101 | 90 | 92 | 106 | 8.0 | -105 | 4:05 |
Helpful Links
For those interested, we've started an MLB DFS Slack channel for paid RotoWire subscribers. (There is a season-long one as well.) To join those channels, e-mail support@rotowire.com.
Park Factors & Lines
Park factors in this piece are a three-year average from 2015-2017, indexed (100 = average). For example, left-handed home runs at Guaranteed Rate Field (home of the White Sox) have a three-year index of 122, which means there have been 22% more homers hit by lefties from all teams during that span in that park compared to a completely neutral environment. Left-handed hitters have a significant advantage when hitting at Guaranteed Rate Field.
AT&T Park (home of the Giants), has a three-year run index of 90, which means that games played at AT&T park have had 10% fewer runs scored overall than a completely neutral environment. Overall offensive production is reduced by a significant amount for games played in San Francisco, making it a safer environment than most for pitchers.
| Lefties | Righties | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Road Starter | Home Starter | Home Tm | R | AVG | HR | AVG | HR | K | O/U | HmL | 1st Pitch |
| J.A. Happ | Jimmy Yacabonis | Orioles | 106 | 103 | 114 | 101 | 121 | 94 | 1:05 PM | ||
| Luis Castillo | Jose Quintana | Cubs | 98 | 99 | 88 | 98 | 114 | 100 | 2:20 PM | ||
| Martin Perez | Andrew Suarez | Giants | 90 | 97 | 53 | 100 | 74 | 99 | 8.5 | -160 | 4:05 PM |
| Tanner Roark | Zack Wheeler | Mets | 90 | 93 | 101 | 90 | 92 | 106 | 8.0 | -105 | 4:05 PM |
| Nick Pivetta | Aaron Sanchez | Blue Jays | 99 | 102 | 98 | 101 | 101 | 97 | 9.0 | 110 | 4:07 PM |
| Rick Porcello | Ryan Yarbrough | Rays | 92 | 95 | 97 | 94 | 90 | 110 | 6:10 PM | ||
| Lucas Giolito | Ryan Carpenter | Tigers | 103 | 98 | 104 | 103 | 101 | 104 | 9.5 | -120 | 6:10 PM |
| Sonny Gray | Andrew Cashner | Orioles | 106 | 103 | 114 | 101 | 121 | 94 | 7:05 PM | ||
| Jameson Taillon | Jhoulys Chacin | Brewers | 105 | 103 | 131 | 96 | 108 | 103 | 8.0 | -135 | 7:10 PM |
| Mike Fiers | Stephen Gonsalves | Twins | 105 | 103 | 95 | 105 | 113 | 93 | 9.5 | 135 | 7:10 PM |
| Anibal Sanchez | Wei-Yin Chen | Marlins | 84 | 93 | 86 | 91 | 83 | 103 | 8.0 | 145 | 7:10 PM |
| Corey Kluber | Heath Fillmyer | Royals | 103 | 102 | 85 | 102 | 76 | 94 | 8.5 | 265 | 7:15 PM |
| Wade LeBlanc | Robbie Ray | Diamondbacks | 116 | 109 | 106 | 105 | 111 | 100 | 8:10 PM | ||
| John Gant | German Marquez | Rockies | 138 | 121 | 117 | 116 | 118 | 87 | 11.0 | -150 | 8:10 PM |
| Justin Verlander | Jaime Barria | Angels | 91 | 96 | 91 | 96 | 102 | 109 | 8.0 | 155 | 9:07 PM |
| Brett Kennedy | Clayton Kershaw | Dodgers | 90 | 95 | 113 | 96 | 90 | 103 | 7.5 | -445 | 9:10 PM |
Pitcher Skills
These stats look at each starting pitcher's stats since the start of last season.
The final two columns are team stats for each pitcher's opponent.
OwRC+ is the team wRC+ for the current season, against the handedness of that pitcher.
TeamK% is the strikeout rate of the opposing team for the current season, against the handedness of that pitcher.
Note: Opponent team matchup data from 2018 season.
| Player | Opp | IP | K% | BB% | K-BB | HR/9 | ERA | WHIP | DK | FD | OwRC+ | OsK% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jaime Barria (R) | v HOU | 97.7 | 18.8 | 6.7 | 12.1 | 1.38 | 3.41 | 1.24 | $7,000 | $6,800 | 107 | 19.6 |
| Ryan Carpenter (L) | v CWS | 18.0 | 11.9 | 3.6 | 8.3 | 3.50 | 6.00 | 1.56 | $6,100 | $6,000 | 93 | 25.7 |
| Andrew Cashner (R) | v NYY | 300.7 | 13.9 | 9.4 | 4.5 | 1.02 | 4.04 | 1.40 | $4,600 | $6,200 | 112 | 21.8 |
| Luis Castillo (R) | at CHC | 222.7 | 24.6 | 7.8 | 16.8 | 1.33 | 4.16 | 1.21 | $8,000 | $7,600 | 105 | 20.2 |
| Jhoulys Chacin (R) | v PIT | 331.3 | 19.7 | 9.1 | 10.6 | 0.90 | 3.75 | 1.23 | $8,100 | $8,400 | 98 | 19.2 |
| Wei-Yin Chen (L) | v ATL | 133.3 | 17.7 | 8.3 | 9.4 | 1.35 | 4.86 | 1.29 | $6,300 | $6,400 | 117 | 19.4 |
| Mike Fiers (R) | at MIN | 290.7 | 20.5 | 7.2 | 13.3 | 1.67 | 4.27 | 1.30 | $8,800 | $8,000 | 96 | 21.5 |
| Heath Fillmyer (R) | v CLE | 45.3 | 13.8 | 11.8 | 2.1 | 1.39 | 4.57 | 1.46 | $4,400 | $5,800 | 109 | 18.8 |
| John Gant (R) | at COL | 96.3 | 18.7 | 10.5 | 8.3 | 0.93 | 3.92 | 1.29 | $5,000 | $6,000 | 83 | 23.5 |
| Lucas Giolito (R) | at DET | 183.0 | 16.5 | 10.8 | 5.7 | 1.48 | 5.16 | 1.36 | $7,200 | $7,600 | 78 | 22.4 |
| Stephen Gonsalves (L) | v OAK | 1.3 | 23.1 | 15.4 | 7.7 | 0.00 | 27.00 | 6.00 | $5,200 | $5,500 | 112 | 22.1 |
| Sonny Gray (R) | at BAL | 275.3 | 21.7 | 9.1 | 12.7 | 1.05 | 4.28 | 1.35 | $7,500 | $7,000 | 89 | 25.3 |
| J.A. Happ (L) | at BAL | 283.7 | 24.6 | 7.4 | 17.3 | 1.24 | 3.68 | 1.22 | $9,300 | $9,800 | 68 | 24.4 |
| Brett Kennedy (R) | at LAD | 14.0 | 12.9 | 5.7 | 7.1 | 3.21 | 8.36 | 2.14 | $4,300 | $5,600 | 118 | 21.9 |
| Clayton Kershaw (L) | v SD | 291.3 | 27.8 | 4.4 | 23.4 | 1.02 | 2.35 | 0.97 | $11,800 | $11,600 | 94 | 23.5 |
| Corey Kluber (R) | at KC | 378.0 | 29.7 | 4.1 | 25.6 | 1.00 | 2.48 | 0.90 | $11,000 | $11,200 | 84 | 21.6 |
| Wade LeBlanc (L) | at ARI | 190.7 | 19.4 | 5.6 | 13.8 | 1.42 | 4.20 | 1.18 | $7,200 | $6,300 | 103 | 22.2 |
| German Marquez (R) | v STL | 304.7 | 22.7 | 7.4 | 15.3 | 1.33 | 4.40 | 1.35 | $7,800 | $8,200 | 100 | 21.1 |
| Martin Perez (L) | at SF | 248.7 | 13.7 | 7.9 | 5.8 | 1.34 | 5.36 | 1.64 | $5,200 | $6,400 | 88 | 20.3 |
| Nick Pivetta (R) | at TOR | 262.3 | 26.4 | 8.1 | 18.2 | 1.48 | 5.35 | 1.40 | $9,400 | $8,300 | 103 | 22.6 |
| Rick Porcello (R) | at TB | 362.0 | 21.8 | 5.5 | 16.3 | 1.49 | 4.43 | 1.28 | $11,200 | $9,400 | 101 | 22.6 |
| Jose Quintana (L) | v CIN | 318.7 | 23.8 | 8.8 | 15.1 | 1.21 | 4.24 | 1.28 | $7,300 | $8,000 | 111 | 20.8 |
| Robbie Ray (L) | v SEA | 242.7 | 31.7 | 11.3 | 20.4 | 1.37 | 3.56 | 1.25 | $8,000 | $7,800 | 100 | 19.7 |
| Tanner Roark (R) | at NYM | 334.7 | 20.6 | 7.9 | 12.7 | 1.08 | 4.38 | 1.30 | $7,700 | $8,600 | 98 | 22.5 |
| Aaron Sanchez (R) | v PHI | 115.7 | 17.3 | 12.4 | 5.0 | 1.09 | 4.44 | 1.57 | $6,100 | $7,600 | 103 | 23.8 |
| Anibal Sanchez (R) | at MIA | 203.0 | 23.0 | 6.7 | 16.3 | 1.73 | 4.83 | 1.35 | $8,200 | $8,600 | 83 | 22.0 |
| Andrew Suarez (L) | v TEX | 119.3 | 20.6 | 6.2 | 14.4 | 1.36 | 4.68 | 1.35 | $6,700 | $7,000 | 103 | 23.0 |
| Jameson Taillon (R) | at MIL | 279.7 | 21.4 | 7.1 | 14.3 | 0.80 | 3.99 | 1.35 | $8,300 | $8,800 | 98 | 22.8 |
| Justin Verlander (R) | at LAA | 375.7 | 29.2 | 6.7 | 22.5 | 1.27 | 3.04 | 1.06 | $12,900 | $11,000 | 123 | 19.8 |
| Zack Wheeler (R) | v WAS | 232.7 | 22.8 | 8.8 | 14.1 | 1.04 | 4.22 | 1.35 | $10,500 | $9,600 | 100 | 20.0 |
| Jimmy Yacabonis (R) | v NYY | 36.7 | 12.9 | 12.9 | 0.0 | 1.47 | 5.40 | 1.61 | $4,100 | $5,500 | 112 | 21.8 |
| Ryan Yarbrough (L) | v BOS | 119.7 | 21.0 | 7.8 | 13.1 | 1.20 | 3.84 | 1.26 | $5,200 | $5,800 | 95 | 21.9 |
Pitcher Splits
These splits cover each pitcher's performance against left-handed and right-handed hitters since the start of the 2016 season.
Stats highlighted yellow indicate matchups favoring the pitcher. Stats highlighted blue indicate matchups favoring opposing hitters.
| v. Lefties | v. Righties | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Name | Opp | K% | BB% | K-BB | HR/9 | wOBA | K% | BB% | K-BB | HR/9 | wOBA |
| Jaime Barria (R) | v HOU | 19.8 | 5.2 | 14.6 | 0.73 | 0.253 | 17.2 | 8.3 | 8.9 | 2.27 | 0.390 |
| Ryan Carpenter (L) | v CWS | 9.1 | 0.0 | 9.1 | 3.38 | 0.400 | 12.9 | 4.8 | 8.1 | 3.55 | 0.419 |
| Andrew Cashner (R) | v NYY | 16.8 | 11.1 | 5.8 | 1.35 | 0.347 | 14.4 | 8.2 | 6.2 | 0.82 | 0.325 |
| Luis Castillo (R) | at CHC | 22.6 | 8.8 | 13.9 | 1.62 | 0.342 | 25.9 | 7.3 | 18.5 | 1.16 | 0.282 |
| Jhoulys Chacin (R) | v PIT | 15.1 | 10.8 | 4.3 | 1.12 | 0.334 | 24.0 | 7.3 | 16.7 | 0.70 | 0.278 |
| Wei-Yin Chen (L) | v ATL | 22.5 | 3.3 | 19.2 | 0.87 | 0.283 | 17.4 | 7.3 | 10.1 | 1.62 | 0.337 |
| Mike Fiers (R) | at MIN | 19.0 | 8.0 | 11.0 | 1.55 | 0.335 | 20.2 | 5.6 | 14.6 | 1.63 | 0.345 |
| Heath Fillmyer (R) | v CLE | 13.5 | 17.7 | -4.2 | 0.00 | 0.281 | 13.4 | 6.1 | 7.3 | 1.80 | 0.334 |
| John Gant (R) | at COL | 19.4 | 11.3 | 8.1 | 1.48 | 0.324 | 21.5 | 8.9 | 12.6 | 0.65 | 0.301 |
| Lucas Giolito (R) | at DET | 13.4 | 11.6 | 1.8 | 1.63 | 0.357 | 17.9 | 10.5 | 7.4 | 1.64 | 0.332 |
| Stephen Gonsalves (L) | v OAK | 0.0 | 0.0 | 0.0 | 0.00 | 0.000 | 0.0 | 0.0 | 0.0 | 0.00 | 0.000 |
| Sonny Gray (R) | at BAL | 20.9 | 8.7 | 12.2 | 0.87 | 0.310 | 20.6 | 8.8 | 11.8 | 1.41 | 0.338 |
| J.A. Happ (L) | at BAL | 20.8 | 6.3 | 14.5 | 0.72 | 0.254 | 23.4 | 7.8 | 15.6 | 1.23 | 0.304 |
| Brett Kennedy (R) | at LAD | 18.2 | 0.0 | 18.2 | 3.86 | 0.464 | 4.0 | 4.0 | 0.0 | 4.15 | 0.629 |
| Clayton Kershaw (L) | v SD | 29.6 | 2.7 | 26.9 | 1.10 | 0.253 | 28.9 | 3.9 | 25.0 | 0.78 | 0.240 |
| Corey Kluber (R) | at KC | 27.1 | 5.9 | 21.2 | 1.01 | 0.268 | 29.9 | 4.3 | 25.6 | 0.95 | 0.252 |
| Wade LeBlanc (L) | at ARI | 18.6 | 3.2 | 15.4 | 1.52 | 0.333 | 19.9 | 6.1 | 13.9 | 1.59 | 0.305 |
| German Marquez (R) | v STL | 17.9 | 8.0 | 9.9 | 1.03 | 0.345 | 26.8 | 6.7 | 20.1 | 1.62 | 0.332 |
| Martin Perez (L) | at SF | 19.2 | 6.9 | 12.3 | 0.60 | 0.286 | 11.5 | 8.6 | 2.9 | 1.24 | 0.364 |
| Nick Pivetta (R) | at TOR | 25.9 | 9.3 | 16.7 | 1.04 | 0.331 | 26.8 | 7.2 | 19.6 | 1.90 | 0.347 |
| Rick Porcello (R) | at TB | 22.7 | 5.4 | 17.4 | 1.24 | 0.305 | 20.5 | 4.3 | 16.2 | 1.25 | 0.310 |
| Jose Quintana (L) | v CIN | 23.9 | 4.7 | 19.1 | 0.54 | 0.270 | 22.8 | 8.5 | 14.3 | 1.29 | 0.317 |
| Robbie Ray (L) | v SEA | 34.5 | 5.7 | 28.9 | 1.11 | 0.280 | 28.9 | 11.7 | 17.2 | 1.38 | 0.324 |
| Tanner Roark (R) | at NYM | 19.7 | 10.0 | 9.7 | 1.05 | 0.320 | 21.2 | 6.3 | 14.9 | 0.86 | 0.284 |
| Aaron Sanchez (R) | v PHI | 20.3 | 12.8 | 7.4 | 0.94 | 0.316 | 18.1 | 6.7 | 11.4 | 0.77 | 0.288 |
| Anibal Sanchez (R) | at MIA | 22.6 | 8.8 | 13.9 | 1.38 | 0.326 | 20.6 | 5.7 | 14.9 | 2.08 | 0.366 |
| Andrew Suarez (L) | v TEX | 22.6 | 2.6 | 20.0 | 0.29 | 0.222 | 20.1 | 7.0 | 13.0 | 1.68 | 0.364 |
| Jameson Taillon (R) | at MIL | 16.5 | 8.4 | 8.1 | 0.82 | 0.334 | 25.3 | 4.1 | 21.2 | 0.94 | 0.294 |
| Justin Verlander (R) | at LAA | 32.3 | 8.1 | 24.2 | 1.36 | 0.279 | 25.6 | 5.1 | 20.5 | 1.06 | 0.272 |
| Zack Wheeler (R) | v WAS | 24.7 | 10.4 | 14.3 | 1.36 | 0.336 | 20.6 | 7.7 | 12.9 | 0.85 | 0.298 |
| Jimmy Yacabonis (R) | v NYY | 11.9 | 14.9 | -3.0 | 0.60 | 0.309 | 13.5 | 11.5 | 2.1 | 2.08 | 0.375 |
| Ryan Yarbrough (L) | v BOS | 28.5 | 9.8 | 18.7 | 1.57 | 0.319 | 17.9 | 7.3 | 10.6 | 1.16 | 0.319 |
