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 |
| Dereck Rodriguez | Clayton Richard | Padres | 92 | 97 | 85 | 97 | 97 | 103 | 8.0 | -105 | 4:10 PM |
| Steven Matz | Tanner Roark | Nationals | 100 | 98 | 89 | 105 | 114 | 98 | 8.5 | -185 | 7:05 PM |
| Yefry Ramirez | Masahiro Tanaka | Yankees | 103 | 95 | 142 | 99 | 123 | 92 | 9.0 | -320 | 7:05 PM |
| Jon Lester | Jameson Taillon | Pirates | 96 | 97 | 101 | 103 | 83 | ||||
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 |
| Dereck Rodriguez | Clayton Richard | Padres | 92 | 97 | 85 | 97 | 97 | 103 | 8.0 | -105 | 4:10 PM |
| Steven Matz | Tanner Roark | Nationals | 100 | 98 | 89 | 105 | 114 | 98 | 8.5 | -185 | 7:05 PM |
| Yefry Ramirez | Masahiro Tanaka | Yankees | 103 | 95 | 142 | 99 | 123 | 92 | 9.0 | -320 | 7:05 PM |
| Jon Lester | Jameson Taillon | Pirates | 96 | 97 | 101 | 103 | 83 | 94 | 7.5 | -110 | 7:05 PM |
| Jake Arrieta | Drew Pomeranz | Red Sox | 114 | 112 | 78 | 109 | 105 | 99 | 10.0 | -160 | 7:10 PM |
| Tyler Skaggs | Ryne Stanek | Rays | 92 | 95 | 97 | 94 | 90 | 110 | 7.5 | 115 | 7:10 PM |
| Homer Bailey | Matt Boyd | Tigers | 103 | 98 | 104 | 103 | 101 | 104 | 9.0 | -125 | 7:10 PM |
| Dan Straily | Kolby Allard | Braves | 102 | 106 | 116 | 98 | 81 | 98 | 9.0 | -180 | 7:35 PM |
| Danny Duffy | James Shields | White Sox | 95 | 90 | 122 | 99 | 110 | 106 | 8.5 | -120 | 8:10 PM |
| Trevor Bauer | Kyle Gibson | Twins | 105 | 103 | 95 | 105 | 113 | 93 | 8.5 | 135 | 8:10 PM |
| Jon Gray | Jack Flaherty | Cardinals | 91 | 102 | 97 | 100 | 82 | 95 | 7.5 | -120 | 8:15 PM |
| Bartolo Colon | Zack Godley | Diamondbacks | 116 | 109 | 106 | 105 | 111 | 100 | 9.0 | -180 | 9:40 PM |
| Sam Gaviglio | Trevor Cahill | Athletics | 96 | 97 | 84 | 97 | 87 | 96 | 8.5 | -170 | 10:05 PM |
| Charlie Morton | Mike Leake | Mariners | 91 | 96 | 105 | 94 | 97 | 104 | 8.0 | 125 | 10:10 PM |
| Wade Miley | Walker Buehler | Dodgers | 90 | 95 | 113 | 96 | 90 | 103 | 8.0 | -180 | 10:10 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% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kolby Allard (L) | v MIA | 0.0 | 0.0 | 0.0 | 0.00 | 0.00 | 0.00 | $6,300 | 78 | 21.3 | ||
| Jake Arrieta (R) | at BOS | 280.7 | 20.7 | 7.9 | 12.8 | 1.09 | 3.50 | 1.24 | $6,200 | $7,300 | 119 | 18.0 |
| Homer Bailey (R) | at DET | 159.7 | 15.3 | 9.2 | 6.1 | 1.47 | 6.37 | 1.67 | $4,200 | $5,800 | 82 | 22.5 |
| Trevor Bauer (R) | at MIN | 323.7 | 28.6 | 8.0 | 20.6 | 0.86 | 3.34 | 1.25 | $13,300 | $11,800 | 97 | 20.7 |
| Matt Boyd (L) | v CIN | 244.3 | 19.7 | 8.6 | 11.2 | 1.11 | 4.94 | 1.40 | $7,300 | $6,500 | 106 | 20.5 |
| Walker Buehler (R) | v MIL | 71.3 | 25.6 | 7.4 | 18.2 | 1.14 | 4.42 | 1.22 | $8,500 | $7,400 | 102 | 22.8 |
| Trevor Cahill (R) | v TOR | 147.0 | 23.1 | 10.3 | 12.8 | 1.29 | 4.29 | 1.39 | $7,400 | $6,900 | 104 | 22.6 |
| Bartolo Colon (R) | at ARI | 261.3 | 13.7 | 4.8 | 8.9 | 1.76 | 5.82 | 1.44 | $4,500 | $6,000 | 88 | 23.1 |
| Danny Duffy (L) | at CWS | 272.7 | 20.8 | 8.5 | 12.3 | 1.09 | 4.22 | 1.35 | $7,700 | $8,500 | 93 | 24.6 |
| Jack Flaherty (R) | v COL | 106.3 | 27.9 | 9.0 | 18.9 | 1.44 | 3.89 | 1.20 | $9,400 | $7,700 | 83 | 23.6 |
| Sam Gaviglio (R) | at OAK | 144.0 | 18.5 | 7.8 | 10.7 | 1.75 | 4.50 | 1.35 | $5,600 | $6,700 | 108 | 21.7 |
| Kyle Gibson (R) | v CLE | 287.0 | 20.1 | 9.0 | 11.2 | 1.16 | 4.33 | 1.39 | $8,700 | $8,400 | 108 | 19.4 |
| Zack Godley (R) | v TEX | 271.0 | 24.8 | 9.6 | 15.1 | 0.90 | 3.95 | 1.31 | $7,200 | $8,100 | 95 | 25.2 |
| Jon Gray (R) | at STL | 216.7 | 26.3 | 6.7 | 19.6 | 0.87 | 4.40 | 1.33 | $9,600 | $8,300 | 95 | 21.9 |
| Mike Leake (R) | v HOU | 314.0 | 15.7 | 5.0 | 10.7 | 1.03 | 4.01 | 1.29 | $5,700 | $7,800 | 109 | 18.6 |
| Jon Lester (L) | at PIT | 301.3 | 21.8 | 8.4 | 13.4 | 1.25 | 3.82 | 1.29 | $8,300 | $8,200 | 95 | 21.6 |
| Steven Matz (L) | at WAS | 173.7 | 19.2 | 7.8 | 11.4 | 1.50 | 4.66 | 1.36 | $6,900 | $7,500 | 102 | 22.2 |
| Wade Miley (L) | at LAD | 179.7 | 18.7 | 12.9 | 5.8 | 1.25 | 5.16 | 1.69 | $5,500 | $6,100 | 97 | 21.0 |
| Charlie Morton (R) | at SEA | 265.0 | 28.3 | 8.9 | 19.4 | 0.88 | 3.29 | 1.18 | $11,100 | $9,600 | 106 | 19.4 |
| Drew Pomeranz (L) | v PHI | 215.3 | 22.9 | 9.8 | 13.0 | 1.17 | 4.01 | 1.44 | $5,900 | $6,200 | 86 | 21.8 |
| Yefry Ramirez (R) | at NYY | 28.3 | 25.6 | 8.5 | 17.1 | 1.59 | 3.49 | 1.16 | $5,300 | $6,300 | 111 | 22.7 |
| Clayton Richard (L) | v SF | 329.3 | 17.4 | 7.9 | 9.5 | 1.01 | 4.89 | 1.45 | $7,100 | 89 | 20.0 | |
| Tanner Roark (R) | v NYM | 304.0 | 21.1 | 8.3 | 12.8 | 1.13 | 4.62 | 1.34 | $9,100 | $7,600 | 92 | 21.9 |
| Dereck Rodriguez (R) | at SD | 59.0 | 19.0 | 6.1 | 13.0 | 0.61 | 2.75 | 1.15 | $8,700 | 83 | 24.7 | |
| James Shields (R) | v KC | 254.0 | 18.8 | 9.6 | 9.2 | 1.59 | 4.85 | 1.37 | $6,000 | $7,200 | 80 | 21.9 |
| Tyler Skaggs (L) | at TB | 195.0 | 23.4 | 7.2 | 16.2 | 0.97 | 3.46 | 1.28 | $11,300 | $9,800 | 106 | 23.2 |
| Ryne Stanek (R) | v LAA | 60.7 | 30.7 | 11.7 | 19.1 | 1.48 | 3.56 | 1.32 | $4,000 | $5,500 | 119 | 20.8 |
| Dan Straily (R) | at ATL | 265.7 | 21.2 | 8.9 | 12.3 | 1.56 | 4.20 | 1.31 | $6,100 | $7,000 | 96 | 20.6 |
| Jameson Taillon (R) | v CHC | 252.0 | 22.1 | 7.2 | 14.9 | 0.82 | 4.11 | 1.36 | $7,800 | $8,900 | 108 | 20.7 |
| Masahiro Tanaka (R) | v BAL | 270.7 | 25.5 | 5.7 | 19.8 | 1.76 | 4.52 | 1.18 | $10,300 | $9,400 | 80 | 24.8 |
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 |
| Kolby Allard (L) | v MIA | 0.0 | 0.0 | 0.0 | 0.00 | 0.000 | 0.0 | 0.0 | 0.0 | 0.00 | 0.000 |
| Jake Arrieta (R) | at BOS | 22.6 | 11.6 | 11.0 | 1.09 | 0.319 | 21.5 | 6.1 | 15.4 | 0.83 | 0.261 |
| Homer Bailey (R) | at DET | 15.0 | 11.0 | 3.9 | 1.35 | 0.370 | 17.9 | 6.8 | 11.1 | 1.41 | 0.379 |
| Trevor Bauer (R) | at MIN | 26.0 | 8.3 | 17.7 | 1.00 | 0.309 | 25.3 | 8.2 | 17.1 | 0.80 | 0.301 |
| Matt Boyd (L) | v CIN | 19.9 | 6.5 | 13.4 | 0.81 | 0.298 | 19.8 | 8.5 | 11.3 | 1.34 | 0.334 |
| Walker Buehler (R) | v MIL | 28.7 | 7.4 | 21.3 | 1.06 | 0.287 | 23.0 | 7.5 | 15.5 | 1.21 | 0.306 |
| Trevor Cahill (R) | v TOR | 22.0 | 12.7 | 9.4 | 0.86 | 0.306 | 24.0 | 9.6 | 14.4 | 1.44 | 0.325 |
| Bartolo Colon (R) | at ARI | 14.0 | 5.8 | 8.1 | 1.53 | 0.349 | 15.4 | 3.2 | 12.2 | 1.45 | 0.337 |
| Danny Duffy (L) | at CWS | 27.0 | 4.1 | 22.9 | 0.43 | 0.222 | 21.8 | 8.1 | 13.8 | 1.37 | 0.333 |
| Jack Flaherty (R) | v COL | 21.7 | 11.3 | 10.4 | 1.38 | 0.308 | 34.1 | 6.7 | 27.4 | 1.49 | 0.305 |
| Sam Gaviglio (R) | at OAK | 15.0 | 8.6 | 6.4 | 1.54 | 0.343 | 21.5 | 7.2 | 14.3 | 1.92 | 0.345 |
| Kyle Gibson (R) | v CLE | 16.7 | 8.9 | 7.8 | 1.03 | 0.348 | 20.4 | 8.6 | 11.8 | 1.31 | 0.325 |
| Zack Godley (R) | v TEX | 22.9 | 10.8 | 12.1 | 0.88 | 0.326 | 23.5 | 7.6 | 15.9 | 1.18 | 0.313 |
| Jon Gray (R) | at STL | 25.5 | 7.5 | 18.0 | 1.01 | 0.311 | 26.9 | 7.3 | 19.6 | 0.80 | 0.314 |
| Mike Leake (R) | v HOU | 13.6 | 5.4 | 8.2 | 1.07 | 0.324 | 18.2 | 3.9 | 14.3 | 0.98 | 0.319 |
| Jon Lester (L) | at PIT | 27.7 | 4.9 | 22.8 | 0.90 | 0.265 | 21.5 | 8.5 | 13.1 | 1.20 | 0.305 |
| Steven Matz (L) | at WAS | 17.4 | 7.9 | 9.5 | 0.51 | 0.314 | 22.2 | 6.6 | 15.6 | 1.49 | 0.325 |
| Wade Miley (L) | at LAD | 19.2 | 11.8 | 7.3 | 0.52 | 0.299 | 18.9 | 9.7 | 9.2 | 1.49 | 0.362 |
| Charlie Morton (R) | at SEA | 34.8 | 9.7 | 25.1 | 0.87 | 0.277 | 22.3 | 8.5 | 13.8 | 0.86 | 0.310 |
| Drew Pomeranz (L) | v PHI | 24.0 | 9.5 | 14.4 | 0.51 | 0.315 | 24.6 | 9.6 | 15.0 | 1.36 | 0.310 |
| Yefry Ramirez (R) | at NYY | 27.1 | 15.3 | 11.9 | 1.38 | 0.350 | 24.1 | 1.7 | 22.4 | 1.76 | 0.267 |
| Clayton Richard (L) | v SF | 23.8 | 5.7 | 18.1 | 0.18 | 0.292 | 14.4 | 9.1 | 5.3 | 1.17 | 0.359 |
| Tanner Roark (R) | v NYM | 20.1 | 10.3 | 9.8 | 1.06 | 0.322 | 21.4 | 6.5 | 14.8 | 0.87 | 0.285 |
| Dereck Rodriguez (R) | at SD | 16.1 | 5.4 | 10.7 | 0.68 | 0.325 | 21.5 | 6.7 | 14.8 | 0.56 | 0.282 |
| James Shields (R) | v KC | 16.2 | 11.5 | 4.7 | 1.76 | 0.352 | 19.3 | 8.1 | 11.2 | 1.75 | 0.350 |
| Tyler Skaggs (L) | at TB | 23.7 | 5.0 | 18.7 | 0.59 | 0.287 | 23.2 | 8.8 | 14.4 | 1.08 | 0.323 |
| Ryne Stanek (R) | v LAA | 36.5 | 9.4 | 27.1 | 0.00 | 0.219 | 27.3 | 13.0 | 14.3 | 2.45 | 0.357 |
| Dan Straily (R) | at ATL | 20.5 | 12.0 | 8.5 | 1.17 | 0.314 | 21.3 | 6.1 | 15.2 | 1.84 | 0.325 |
| Jameson Taillon (R) | v CHC | 17.0 | 8.4 | 8.5 | 0.87 | 0.332 | 26.1 | 4.3 | 21.8 | 0.95 | 0.295 |
| Masahiro Tanaka (R) | v BAL | 23.2 | 4.9 | 18.4 | 1.35 | 0.294 | 23.5 | 5.4 | 18.1 | 1.51 | 0.309 |
