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 |
| Deck McGuire | Kevin Gausman | Orioles | 106 | 103 | 114 | 101 | 121 | 94 | 10.0 | -130 | 1:05 PM |
| Jordan Zimmermann | J.A. Happ | Blue Jays | 99 | 102 | 98 | 101 | 101 | 97 | 8.5 | -195 | 1:07 PM |
| Charlie Morton | Blake Snell | Rays | 92 | 95 | 97 | 94 | 90 | 110 | 7.0 | 120 | 1:10 PM |
| Freddy Peralta | Matt Harvey | Reds | 104 | 100 | 119 | 98 | |||||
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 |
| Deck McGuire | Kevin Gausman | Orioles | 106 | 103 | 114 | 101 | 121 | 94 | 10.0 | -130 | 1:05 PM |
| Jordan Zimmermann | J.A. Happ | Blue Jays | 99 | 102 | 98 | 101 | 101 | 97 | 8.5 | -195 | 1:07 PM |
| Charlie Morton | Blake Snell | Rays | 92 | 95 | 97 | 94 | 90 | 110 | 7.0 | 120 | 1:10 PM |
| Freddy Peralta | Matt Harvey | Reds | 104 | 100 | 119 | 98 | 108 | 106 | 9.0 | 115 | 1:10 PM |
| Steven Matz | Dan Straily | Marlins | 84 | 93 | 86 | 91 | 83 | 103 | 8.0 | 100 | 1:10 PM |
| Gio Gonzalez | Jake Arrieta | Phillies | 98 | 95 | 120 | 97 | 124 | 109 | 9.0 | 100 | 1:35 PM |
| Mike Foltynewicz | John Gant | Cardinals | 91 | 102 | 97 | 100 | 82 | 95 | 8.5 | -110 | 2:15 PM |
| Lance Lynn | Jon Lester | Cubs | 98 | 99 | 88 | 98 | 114 | 100 | 2:20 PM | ||
| Reynaldo Lopez | Cole Hamels | Rangers | 117 | 108 | 107 | 110 | 106 | 93 | 10.0 | -170 | 3:05 PM |
| Mike Clevinger | Frankie Montas | Athletics | 96 | 97 | 84 | 97 | 87 | 96 | 8.5 | 115 | 4:05 PM |
| Derek Holland | Zack Godley | Diamondbacks | 116 | 109 | 106 | 105 | 111 | 100 | 8.5 | -135 | 4:10 PM |
| Brad Keller | James Paxton | Mariners | 91 | 96 | 105 | 94 | 97 | 104 | 7.5 | -275 | 4:10 PM |
| Jameson Taillon | Tyson Ross | Padres | 92 | 97 | 85 | 97 | 97 | 103 | 7.5 | -115 | 4:10 PM |
| Chad Bettis | Ross Stripling | Dodgers | 90 | 95 | 113 | 96 | 90 | 103 | 8.0 | -220 | 4:10 PM |
| David Price | Luis Severino | Yankees | 103 | 95 | 142 | 99 | 123 | 92 | 8.0 | -200 | 8:08 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% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jake Arrieta (R) | v WAS | 252.3 | 21.0 | 7.7 | 13.2 | 1.14 | 3.53 | 1.24 | $6,100 | $7,200 | 99 | 21.1 |
| Chad Bettis (R) | at LAD | 138.7 | 16.3 | 7.9 | 8.4 | 1.49 | 5.06 | 1.38 | $4,900 | $6,100 | 110 | 22.0 |
| Mike Clevinger (R) | at OAK | 225.7 | 25.1 | 10.2 | 14.9 | 0.80 | 3.07 | 1.22 | $10,700 | $9,600 | 111 | 22.2 |
| Mike Foltynewicz (R) | at STL | 238.0 | 23.2 | 9.3 | 14.0 | 0.98 | 3.86 | 1.36 | $10,000 | $8,600 | 97 | 22.8 |
| John Gant (R) | v ATL | 51.0 | 19.6 | 11.0 | 8.7 | 0.88 | 3.88 | 1.27 | $6,200 | $6,000 | 99 | 19.4 |
| Kevin Gausman (R) | v LAA | 281.0 | 21.8 | 7.9 | 14.0 | 1.44 | 4.52 | 1.45 | $7,000 | $7,200 | 111 | 20.3 |
| Zack Godley (R) | v SF | 243.3 | 24.7 | 9.6 | 15.1 | 1.00 | 3.81 | 1.28 | $7,500 | $8,100 | 106 | 23.8 |
| Gio Gonzalez (L) | at PHI | 286.7 | 22.5 | 9.8 | 12.7 | 0.94 | 3.17 | 1.25 | $7,700 | $8,300 | 90 | 22.5 |
| Cole Hamels (L) | v CWS | 245.3 | 19.6 | 8.7 | 10.9 | 1.39 | 3.96 | 1.23 | $9,700 | $8,700 | 92 | 25.4 |
| J.A. Happ (L) | v DET | 242.3 | 24.3 | 7.2 | 17.2 | 1.15 | 3.57 | 1.21 | $10,200 | $9,400 | 117 | 19.0 |
| Matt Harvey (R) | v MIL | 167.7 | 16.1 | 9.0 | 7.0 | 1.83 | 6.07 | 1.53 | $4,300 | $5,900 | 99 | 24.4 |
| Derek Holland (L) | at ARI | 220.0 | 18.6 | 11.0 | 7.6 | 1.76 | 5.44 | 1.55 | $6,300 | $7,100 | 99 | 23.5 |
| Brad Keller (R) | at SEA | 48.0 | 15.4 | 9.2 | 6.2 | 0.19 | 2.25 | 1.23 | $4,500 | $5,800 | 113 | 19.4 |
| Jon Lester (L) | v MIN | 275.7 | 22.2 | 8.0 | 14.1 | 1.18 | 3.59 | 1.24 | $8,100 | $9,000 | 90 | 22.5 |
| Reynaldo Lopez (R) | at TEX | 141.7 | 16.0 | 8.8 | 7.3 | 1.14 | 4.07 | 1.29 | $6,000 | $6,700 | 96 | 24.6 |
| Lance Lynn (R) | at CHC | 265.0 | 20.7 | 11.0 | 9.6 | 1.15 | 3.84 | 1.34 | $6,300 | $7,900 | 109 | 20.9 |
| Steven Matz (L) | at MIA | 144.7 | 18.9 | 7.8 | 11.0 | 1.56 | 4.79 | 1.38 | $6,800 | $6,900 | 77 | 21.9 |
| Deck McGuire (R) | at BAL | 27.0 | 16.4 | 6.9 | 9.5 | 2.00 | 4.33 | 1.15 | $5,200 | $5,500 | 84 | 24.9 |
| Frankie Montas (R) | v CLE | 68.7 | 18.7 | 10.6 | 8.1 | 1.57 | 5.24 | 1.63 | $6,600 | $8,100 | 110 | 20.8 |
| Charlie Morton (R) | at TB | 242.3 | 28.2 | 8.8 | 19.4 | 0.93 | 3.19 | 1.16 | $12,500 | $10,400 | 94 | 23.0 |
| James Paxton (L) | v KC | 239.7 | 29.9 | 6.9 | 23.0 | 0.83 | 3.27 | 1.11 | $12,100 | $9,800 | 91 | 21.2 |
| Freddy Peralta (R) | at CIN | 22.7 | 41.7 | 10.7 | 31.0 | 0.40 | 1.59 | 0.71 | $10,100 | $8,500 | 101 | 20.4 |
| David Price (L) | at NYY | 168.0 | 23.6 | 8.2 | 15.5 | 0.96 | 3.54 | 1.20 | $8,600 | 123 | 22.4 | |
| Tyson Ross (R) | v PIT | 144.0 | 19.9 | 11.4 | 8.5 | 1.06 | 4.81 | 1.41 | $7,900 | $7,400 | 92 | 19.8 |
| Luis Severino (R) | v BOS | 305.0 | 29.7 | 6.3 | 23.4 | 0.80 | 2.66 | 1.01 | $10,800 | 121 | 18.9 | |
| Blake Snell (L) | v HOU | 230.7 | 24.4 | 10.4 | 14.0 | 1.01 | 3.28 | 1.20 | $10,900 | $9,100 | 122 | 20.1 |
| Dan Straily (R) | v NYM | 234.0 | 21.5 | 8.5 | 13.0 | 1.65 | 4.38 | 1.32 | $5,800 | $6,200 | 102 | 22.0 |
| Ross Stripling (R) | v COL | 151.7 | 26.6 | 5.1 | 21.5 | 1.07 | 2.85 | 1.13 | $9,700 | $9,100 | 83 | 23.4 |
| Jameson Taillon (R) | at SD | 222.3 | 21.7 | 7.4 | 14.3 | 0.85 | 4.25 | 1.38 | $7,200 | $7,900 | 85 | 24.7 |
| Jordan Zimmermann (R) | at TOR | 201.3 | 16.0 | 6.1 | 9.9 | 1.52 | 5.72 | 1.48 | $6,500 | $7,100 | 105 | 23.7 |
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 |
| Jake Arrieta (R) | v WAS | 22.9 | 11.6 | 11.3 | 1.10 | 0.315 | 21.6 | 6.0 | 15.7 | 0.85 | 0.264 |
| Chad Bettis (R) | at LAD | 18.1 | 8.3 | 9.9 | 0.89 | 0.309 | 15.3 | 6.8 | 8.5 | 1.59 | 0.364 |
| Mike Clevinger (R) | at OAK | 22.4 | 11.2 | 11.2 | 0.76 | 0.301 | 25.8 | 10.3 | 15.5 | 1.01 | 0.299 |
| Mike Foltynewicz (R) | at STL | 22.0 | 10.5 | 11.4 | 1.27 | 0.340 | 23.1 | 6.4 | 16.7 | 0.94 | 0.300 |
| John Gant (R) | v ATL | 21.1 | 11.4 | 9.7 | 1.16 | 0.311 | 20.6 | 8.8 | 11.8 | 0.96 | 0.331 |
| Kevin Gausman (R) | v LAA | 22.8 | 8.6 | 14.2 | 1.23 | 0.317 | 21.9 | 6.1 | 15.8 | 1.58 | 0.351 |
| Zack Godley (R) | v SF | 23.0 | 10.9 | 12.1 | 0.97 | 0.326 | 23.0 | 7.4 | 15.6 | 1.27 | 0.313 |
| Gio Gonzalez (L) | at PHI | 22.9 | 6.6 | 16.3 | 0.35 | 0.253 | 22.3 | 9.6 | 12.7 | 1.12 | 0.316 |
| Cole Hamels (L) | v CWS | 18.6 | 8.6 | 10.0 | 0.71 | 0.265 | 22.1 | 9.0 | 13.1 | 1.39 | 0.323 |
| J.A. Happ (L) | v DET | 21.1 | 5.3 | 15.7 | 0.70 | 0.248 | 23.0 | 7.8 | 15.2 | 1.19 | 0.302 |
| Matt Harvey (R) | v MIL | 15.8 | 9.4 | 6.4 | 1.75 | 0.389 | 18.3 | 6.7 | 11.6 | 1.18 | 0.321 |
| Derek Holland (L) | at ARI | 15.0 | 8.4 | 6.6 | 0.75 | 0.266 | 17.9 | 10.3 | 7.6 | 1.83 | 0.377 |
| Brad Keller (R) | at SEA | 16.9 | 12.3 | 4.6 | 0.00 | 0.231 | 14.6 | 7.7 | 6.9 | 0.28 | 0.287 |
| Jon Lester (L) | v MIN | 28.4 | 4.6 | 23.8 | 0.71 | 0.250 | 21.8 | 8.2 | 13.5 | 1.18 | 0.301 |
| Reynaldo Lopez (R) | at TEX | 15.1 | 9.7 | 5.4 | 1.56 | 0.320 | 19.6 | 8.9 | 10.7 | 0.52 | 0.317 |
| Lance Lynn (R) | at CHC | 15.3 | 14.3 | 0.9 | 1.56 | 0.355 | 25.5 | 8.2 | 17.3 | 0.84 | 0.282 |
| Steven Matz (L) | at MIA | 17.1 | 7.6 | 9.5 | 0.56 | 0.311 | 22.3 | 6.6 | 15.7 | 1.48 | 0.326 |
| Deck McGuire (R) | at BAL | 12.7 | 5.5 | 7.3 | 0.64 | 0.207 | 19.7 | 8.2 | 11.5 | 3.46 | 0.413 |
| Frankie Montas (R) | v CLE | 14.4 | 11.6 | 2.7 | 2.56 | 0.410 | 22.6 | 9.8 | 12.8 | 0.73 | 0.338 |
| Charlie Morton (R) | at TB | 34.7 | 9.6 | 25.1 | 0.85 | 0.267 | 21.9 | 8.4 | 13.5 | 0.95 | 0.318 |
| James Paxton (L) | v KC | 23.9 | 7.1 | 16.9 | 0.62 | 0.309 | 28.2 | 5.9 | 22.2 | 0.80 | 0.279 |
| Freddy Peralta (R) | at CIN | 40.4 | 12.8 | 27.7 | 0.77 | 0.234 | 43.2 | 8.1 | 35.1 | 0.00 | 0.090 |
| David Price (L) | at NYY | 19.9 | 4.2 | 15.8 | 0.95 | 0.299 | 24.9 | 7.1 | 17.8 | 1.12 | 0.304 |
| Tyson Ross (R) | v PIT | 18.0 | 10.8 | 7.2 | 1.12 | 0.355 | 21.7 | 11.3 | 10.4 | 0.94 | 0.301 |
| Luis Severino (R) | v BOS | 28.3 | 7.8 | 20.5 | 0.98 | 0.284 | 27.8 | 5.8 | 22.0 | 0.86 | 0.268 |
| Blake Snell (L) | v HOU | 27.8 | 10.3 | 17.5 | 0.14 | 0.234 | 23.7 | 11.3 | 12.4 | 1.05 | 0.314 |
| Dan Straily (R) | v NYM | 20.4 | 11.7 | 8.7 | 1.17 | 0.316 | 21.7 | 6.0 | 15.7 | 1.94 | 0.329 |
| Ross Stripling (R) | v COL | 24.1 | 6.2 | 17.9 | 0.82 | 0.264 | 21.9 | 5.7 | 16.3 | 1.17 | 0.316 |
| Jameson Taillon (R) | at SD | 16.6 | 8.5 | 8.1 | 0.96 | 0.337 | 25.7 | 4.4 | 21.3 | 0.92 | 0.296 |
| Jordan Zimmermann (R) | at TOR | 16.5 | 6.1 | 10.5 | 1.39 | 0.342 | 14.6 | 5.9 | 8.7 | 1.43 | 0.363 |
