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 |
| Aaron Nola | David Price | Red Sox | 114 | 112 | 78 | 109 | 105 | 99 | 9.0 | -150 | 7:10 PM |
| Wei-Yin Chen | Julio Teheran | Braves | 102 | 106 | 116 | 98 | 81 | 98 | 9.0 | -170 | 7:35 PM |
| Tyler Anderson | Carlos Martinez | Cardinals | 91 | 102 | 97 | 100 | 82 | 95 | 8.0 | -145 | 8:10 PM |
| Shane Bieber | Ervin Santana | Twins | 105 | 103 | 95 | 105 | |||||
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 |
| Aaron Nola | David Price | Red Sox | 114 | 112 | 78 | 109 | 105 | 99 | 9.0 | -150 | 7:10 PM |
| Wei-Yin Chen | Julio Teheran | Braves | 102 | 106 | 116 | 98 | 81 | 98 | 9.0 | -170 | 7:35 PM |
| Tyler Anderson | Carlos Martinez | Cardinals | 91 | 102 | 97 | 100 | 82 | 95 | 8.0 | -145 | 8:10 PM |
| Shane Bieber | Ervin Santana | Twins | 105 | 103 | 95 | 105 | 113 | 93 | 9.5 | 110 | 8:10 PM |
| Martin Perez | Robbie Ray | Diamondbacks | 116 | 109 | 106 | 105 | 111 | 100 | 8.5 | -225 | 9:40 PM |
| Marco Estrada | Edwin Jackson | Athletics | 96 | 97 | 84 | 97 | 87 | 96 | 8.5 | -160 | 10:05 PM |
| Gerrit Cole | James Paxton | Mariners | 91 | 96 | 105 | 94 | 97 | 104 | 7.0 | -105 | 10:10 PM |
| Derek Holland | Eric Lauer | Padres | 92 | 97 | 85 | 97 | 97 | 103 | 8.0 | -110 | 10:10 PM |
| Freddy Peralta | Kenta Maeda | Dodgers | 90 | 95 | 113 | 96 | 90 | 103 | 7.5 | -160 | 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% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tyler Anderson (L) | at STL | 207.0 | 22.5 | 7.8 | 14.7 | 1.43 | 4.09 | 1.24 | $8,200 | $8,600 | 107 | 21.6 |
| Shane Bieber (R) | at MIN | 45.0 | 22.6 | 4.1 | 18.5 | 1.20 | 4.80 | 1.44 | $7,700 | $7,300 | 98 | 20.7 |
| Wei-Yin Chen (L) | at ATL | 111.0 | 18.0 | 8.4 | 9.6 | 1.22 | 5.11 | 1.35 | $4,800 | $6,200 | 114 | 19.9 |
| Gerrit Cole (R) | at SEA | 337.7 | 27.8 | 7.3 | 20.4 | 1.20 | 3.57 | 1.14 | $12,800 | $11,100 | 108 | 19.6 |
| Marco Estrada (R) | at OAK | 275.7 | 20.8 | 8.1 | 12.7 | 1.50 | 4.90 | 1.36 | $5,300 | $7,600 | 108 | 21.8 |
| Derek Holland (L) | at SD | 243.0 | 19.7 | 10.6 | 9.2 | 1.67 | 5.19 | 1.51 | $7,600 | $6,800 | 91 | 24.1 |
| Edwin Jackson (R) | v TOR | 111.0 | 18.1 | 8.1 | 10.0 | 2.03 | 4.78 | 1.38 | $6,300 | $6,400 | 104 | 22.6 |
| Eric Lauer (L) | v SF | 81.7 | 19.1 | 9.3 | 9.8 | 1.32 | 5.29 | 1.70 | $4,200 | $6,900 | 89 | 20.0 |
| Kenta Maeda (R) | v MIL | 228.0 | 26.9 | 7.0 | 19.9 | 1.18 | 3.83 | 1.17 | $10,100 | $9,100 | 102 | 22.9 |
| Carlos Martinez (R) | v COL | 300.7 | 23.8 | 9.3 | 14.6 | 0.96 | 3.56 | 1.27 | $7,900 | $7,700 | 84 | 23.6 |
| Aaron Nola (R) | at BOS | 302.0 | 26.3 | 7.1 | 19.2 | 0.75 | 3.04 | 1.11 | $9,000 | $9,900 | 119 | 18.8 |
| James Paxton (L) | v HOU | 255.3 | 30.1 | 6.8 | 23.3 | 0.88 | 3.31 | 1.10 | $9,600 | $8,900 | 116 | 18.6 |
| Freddy Peralta (R) | at LAD | 43.3 | 33.1 | 12.8 | 20.3 | 0.83 | 3.74 | 1.02 | $8,500 | $7,400 | 118 | 21.5 |
| Martin Perez (L) | at ARI | 225.7 | 13.9 | 8.1 | 5.8 | 1.28 | 5.22 | 1.62 | $4,000 | $5,600 | 96 | 22.2 |
| David Price (L) | v PHI | 189.0 | 24.0 | 7.4 | 16.5 | 1.24 | 3.86 | 1.21 | $8,600 | $9,300 | 87 | 21.8 |
| Robbie Ray (L) | v TEX | 222.7 | 32.2 | 10.8 | 21.4 | 1.41 | 3.44 | 1.23 | $8,000 | $8,300 | 104 | 22.7 |
| Ervin Santana (R) | v CLE | 216.3 | 19.4 | 7.0 | 12.4 | 1.29 | 3.33 | 1.14 | $6,500 | $7,200 | 110 | 19.4 |
| Julio Teheran (R) | v MIA | 298.3 | 19.8 | 9.8 | 10.0 | 1.54 | 4.46 | 1.32 | $7,300 | $7,600 | 93 | 22.7 |
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 |
| Tyler Anderson (L) | at STL | 22.8 | 7.3 | 15.5 | 1.15 | 0.307 | 21.6 | 7.1 | 14.5 | 1.29 | 0.324 |
| Shane Bieber (R) | at MIN | 23.0 | 6.0 | 17.0 | 1.71 | 0.448 | 22.1 | 2.1 | 20.0 | 0.75 | 0.275 |
| Wei-Yin Chen (L) | at ATL | 22.2 | 3.7 | 18.5 | 0.60 | 0.287 | 17.8 | 7.1 | 10.8 | 1.62 | 0.340 |
| Gerrit Cole (R) | at SEA | 28.0 | 7.6 | 20.4 | 1.19 | 0.323 | 23.2 | 6.9 | 16.2 | 0.89 | 0.284 |
| Marco Estrada (R) | at OAK | 21.7 | 7.8 | 13.9 | 1.26 | 0.286 | 21.5 | 9.0 | 12.4 | 1.49 | 0.341 |
| Derek Holland (L) | at SD | 15.1 | 8.0 | 7.1 | 0.70 | 0.271 | 19.0 | 10.1 | 8.9 | 1.78 | 0.371 |
| Edwin Jackson (R) | v TOR | 18.9 | 11.1 | 7.8 | 1.30 | 0.330 | 15.8 | 7.7 | 8.1 | 2.30 | 0.378 |
| Eric Lauer (L) | v SF | 11.9 | 8.3 | 3.6 | 1.56 | 0.404 | 21.2 | 9.6 | 11.6 | 1.26 | 0.367 |
| Kenta Maeda (R) | v MIL | 20.0 | 8.7 | 11.3 | 1.23 | 0.318 | 31.8 | 5.3 | 26.6 | 1.01 | 0.265 |
| Carlos Martinez (R) | v COL | 19.5 | 11.4 | 8.0 | 1.00 | 0.325 | 26.9 | 6.3 | 20.6 | 0.70 | 0.262 |
| Aaron Nola (R) | at BOS | 23.1 | 9.2 | 13.9 | 0.79 | 0.296 | 28.6 | 4.5 | 24.1 | 0.74 | 0.270 |
| James Paxton (L) | v HOU | 25.1 | 6.6 | 18.5 | 0.57 | 0.301 | 28.3 | 6.0 | 22.3 | 0.86 | 0.280 |
| Freddy Peralta (R) | at LAD | 30.4 | 15.2 | 15.2 | 1.74 | 0.345 | 36.3 | 10.0 | 26.3 | 0.00 | 0.152 |
| Martin Perez (L) | at ARI | 19.8 | 7.4 | 12.5 | 0.53 | 0.278 | 11.5 | 8.7 | 2.7 | 1.20 | 0.362 |
| David Price (L) | v PHI | 20.4 | 4.0 | 16.4 | 1.02 | 0.305 | 25.0 | 6.9 | 18.1 | 1.25 | 0.309 |
| Robbie Ray (L) | v TEX | 34.5 | 5.7 | 28.8 | 0.97 | 0.277 | 29.2 | 11.3 | 17.9 | 1.45 | 0.325 |
| Ervin Santana (R) | v CLE | 16.3 | 6.6 | 9.7 | 1.08 | 0.285 | 22.6 | 7.4 | 15.2 | 1.18 | 0.303 |
| Julio Teheran (R) | v MIA | 16.8 | 12.3 | 4.5 | 1.46 | 0.336 | 24.6 | 4.0 | 20.6 | 1.25 | 0.283 |
