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 |
| Jake Arrieta | Mike Foltynewicz | Braves | 102 | 106 | 116 | 98 | 81 | 98 | 8.5 | -150 | 1:05 PM |
| Dereck Rodriguez | Adam Wainwright | Cardinals | 91 | 102 | 97 | 100 | 82 | 95 | 8.0 | -185 | 1:05 PM |
| Corey Oswalt | Austin Voth | Nationals | 100 | 98 | 89 | 105 | 114 | 98 | 9.0 | -170 | 4:05 PM |
| David Hess | Lance Lynn | Yankees | 103 | 95 | 142 | 99 | 123 | ||||
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 |
| Jake Arrieta | Mike Foltynewicz | Braves | 102 | 106 | 116 | 98 | 81 | 98 | 8.5 | -150 | 1:05 PM |
| Dereck Rodriguez | Adam Wainwright | Cardinals | 91 | 102 | 97 | 100 | 82 | 95 | 8.0 | -185 | 1:05 PM |
| Corey Oswalt | Austin Voth | Nationals | 100 | 98 | 89 | 105 | 114 | 98 | 9.0 | -170 | 4:05 PM |
| David Hess | Lance Lynn | Yankees | 103 | 95 | 142 | 99 | 123 | 92 | 9.5 | -345 | 4:05 PM |
| Tyler Glasnow | Thomas Pannone | Blue Jays | 99 | 102 | 98 | 101 | 101 | 97 | 9.0 | 135 | 4:07 PM |
| Jakob Junis | Jordan Zimmermann | Tigers | 103 | 98 | 104 | 103 | 101 | 104 | 8.0 | -110 | 6:10 PM |
| Zach Davies | Trevor Williams | Pirates | 96 | 97 | 101 | 103 | 83 | 94 | 8.0 | 115 | 7:05 PM |
| Jon Lester | Lucas Giolito | White Sox | 95 | 90 | 122 | 99 | 110 | 106 | 9.0 | 175 | 7:10 PM |
| Rick Porcello | Mike Clevinger | Indians | 114 | 114 | 110 | 102 | 98 | 94 | 8.5 | -120 | 7:10 PM |
| Jaime Barria | Justin Verlander | Astros | 83 | 93 | 109 | 94 | 109 | 101 | 7.5 | -300 | 7:10 PM |
| Anthony DeSclafani | Jose Urena | Marlins | 84 | 93 | 86 | 91 | 83 | 103 | 8.0 | -105 | 7:10 PM |
| Marco Gonzales | Mike Minor | Rangers | 117 | 108 | 107 | 110 | 106 | 93 | 10.0 | -110 | 8:05 PM |
| Antonio Senzatela | Patrick Corbin | Diamondbacks | 116 | 109 | 106 | 105 | 111 | 100 | 7.5 | -180 | 8:10 PM |
| Chase De Jong | Mike Fiers | Athletics | 96 | 97 | 84 | 97 | 87 | 96 | 8.5 | -250 | 9:05 PM |
| Jacob Nix | Rich Hill | Dodgers | 90 | 95 | 113 | 96 | 90 | 103 | 8.0 | -315 | 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% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jake Arrieta (R) | at ATL | 333.0 | 21.3 | 7.8 | 13.5 | 1.14 | 3.65 | 1.24 | $7,000 | $8,100 | 99 | 21.1 |
| Jaime Barria (R) | at HOU | 119.7 | 18.3 | 7.6 | 10.7 | 1.28 | 3.61 | 1.26 | $5,900 | $6,400 | 105 | 18.9 |
| Mike Clevinger (R) | v BOS | 310.0 | 26.3 | 9.6 | 16.7 | 0.93 | 3.08 | 1.20 | $9,300 | $10,000 | 115 | 18.5 |
| Patrick Corbin (L) | v COL | 381.7 | 26.1 | 6.5 | 19.6 | 0.97 | 3.56 | 1.22 | $10,400 | $9,800 | 97 | 21.2 |
| Zach Davies (R) | at PIT | 249.3 | 15.7 | 7.0 | 8.6 | 1.01 | 4.08 | 1.35 | $5,600 | $6,800 | 99 | 19.1 |
| Chase De Jong (R) | at OAK | 35.7 | 13.8 | 10.7 | 3.1 | 1.26 | 5.80 | 1.60 | $4,900 | $6,200 | 111 | 21.7 |
| Anthony DeSclafani (R) | at MIA | 104.3 | 20.9 | 6.4 | 14.5 | 1.90 | 4.92 | 1.31 | $6,600 | $5,900 | 81 | 22.9 |
| Mike Fiers (R) | v MIN | 316.0 | 20.6 | 7.3 | 13.3 | 1.77 | 4.27 | 1.30 | $8,400 | $7,800 | 96 | 21.7 |
| Mike Foltynewicz (R) | v PHI | 324.7 | 23.8 | 8.9 | 14.9 | 1.03 | 3.80 | 1.29 | $9,000 | $9,400 | 101 | 24.5 |
| Lucas Giolito (R) | v CHC | 210.7 | 16.7 | 10.4 | 6.3 | 1.45 | 5.04 | 1.33 | $4,700 | $6,600 | 102 | 21.1 |
| Tyler Glasnow (R) | at TOR | 162.3 | 24.5 | 12.7 | 11.8 | 1.39 | 5.54 | 1.53 | $9,800 | $7,000 | 103 | 22.3 |
| Marco Gonzales (L) | at TEX | 195.7 | 20.1 | 4.9 | 15.2 | 1.15 | 4.65 | 1.37 | $7,300 | $6,000 | 91 | 22.7 |
| David Hess (R) | at NYY | 91.3 | 16.0 | 7.6 | 8.4 | 1.87 | 5.22 | 1.42 | $5,200 | $6,300 | 107 | 22.1 |
| Rich Hill (L) | v SD | 254.3 | 28.7 | 8.6 | 20.2 | 1.31 | 3.64 | 1.14 | $9,500 | $9,200 | 97 | 23.5 |
| Jakob Junis (R) | at DET | 263.3 | 20.7 | 5.9 | 14.8 | 1.61 | 4.37 | 1.27 | $8,100 | $8,000 | 79 | 23.1 |
| Jon Lester (L) | at CWS | 351.3 | 21.8 | 8.1 | 13.7 | 1.26 | 3.89 | 1.31 | $9,000 | $9,200 | 95 | 27.1 |
| Lance Lynn (R) | v BAL | 335.0 | 21.2 | 10.5 | 10.7 | 1.10 | 4.08 | 1.36 | $8,600 | $7,600 | 83 | 24.8 |
| Mike Minor (L) | v SEA | 230.0 | 23.4 | 6.2 | 17.2 | 1.13 | 3.60 | 1.07 | $8,000 | $8,500 | 96 | 20.0 |
| Jacob Nix (R) | at LAD | 36.0 | 12.1 | 6.4 | 5.7 | 1.25 | 5.75 | 1.42 | $4,400 | $5,800 | 117 | 22.2 |
| Corey Oswalt (R) | at WAS | 55.7 | 15.2 | 6.1 | 9.0 | 2.10 | 6.31 | 1.37 | $6,600 | $5,500 | 102 | 19.8 |
| Thomas Pannone (L) | v TB | 31.0 | 16.5 | 7.1 | 9.4 | 1.45 | 3.77 | 1.06 | $6,000 | $6,700 | 105 | 24.2 |
| Rick Porcello (R) | at CLE | 387.7 | 22.1 | 5.6 | 16.5 | 1.51 | 4.48 | 1.28 | $8,500 | $8,700 | 108 | 18.9 |
| Dereck Rodriguez (R) | at STL | 109.3 | 19.3 | 7.2 | 12.1 | 0.49 | 2.30 | 1.07 | $8,100 | $8,300 | 99 | 22.0 |
| Antonio Senzatela (R) | at ARI | 213.3 | 17.9 | 8.1 | 9.8 | 1.10 | 4.72 | 1.35 | $6,100 | $6,100 | 87 | 23.5 |
| Jose Urena (R) | v CIN | 332.0 | 17.2 | 7.9 | 9.3 | 1.22 | 4.01 | 1.23 | $7,600 | $7,900 | 100 | 21.1 |
| Justin Verlander (R) | v LAA | 408.0 | 29.7 | 6.6 | 23.2 | 1.21 | 3.02 | 1.05 | $12,100 | $12,200 | 113 | 20.5 |
| Austin Voth (R) | v NYM | 5.3 | 10.7 | 10.7 | 0.0 | 1.69 | 11.81 | 2.25 | $4,200 | $5,500 | 97 | 22.4 |
| Adam Wainwright (R) | v SF | 152.3 | 18.1 | 9.1 | 9.0 | 1.06 | 4.84 | 1.51 | $6,200 | $7,200 | 85 | 23.8 |
| Trevor Williams (R) | v MIL | 310.0 | 17.9 | 7.9 | 9.9 | 0.84 | 3.60 | 1.23 | $8,200 | $9,000 | 102 | 23.7 |
| Jordan Zimmermann (R) | v KC | 280.3 | 16.7 | 5.4 | 11.4 | 1.73 | 5.36 | 1.42 | $7,100 | $6,500 | 92 | 21.7 |
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) | at ATL | 22.9 | 11.0 | 11.9 | 1.18 | 0.324 | 21.6 | 6.2 | 15.4 | 0.84 | 0.265 |
| Jaime Barria (R) | at HOU | 19.6 | 6.8 | 12.8 | 0.87 | 0.281 | 17.0 | 8.5 | 8.5 | 1.72 | 0.363 |
| Mike Clevinger (R) | v BOS | 22.9 | 10.7 | 12.2 | 1.12 | 0.315 | 27.8 | 9.5 | 18.2 | 0.89 | 0.285 |
| Patrick Corbin (L) | v COL | 31.5 | 8.4 | 23.1 | 1.17 | 0.303 | 21.6 | 7.1 | 14.5 | 1.06 | 0.321 |
| Zach Davies (R) | at PIT | 17.6 | 8.4 | 9.2 | 1.14 | 0.336 | 17.0 | 4.7 | 12.3 | 0.96 | 0.307 |
| Chase De Jong (R) | at OAK | 11.4 | 12.7 | -1.3 | 1.10 | 0.360 | 16.3 | 8.8 | 7.5 | 1.40 | 0.354 |
| Anthony DeSclafani (R) | at MIA | 21.2 | 6.1 | 15.1 | 2.10 | 0.374 | 20.4 | 6.1 | 14.2 | 0.93 | 0.275 |
| Mike Fiers (R) | v MIN | 19.5 | 8.1 | 11.4 | 1.50 | 0.328 | 20.2 | 5.6 | 14.6 | 1.75 | 0.349 |
| Mike Foltynewicz (R) | v PHI | 22.6 | 10.0 | 12.6 | 1.30 | 0.328 | 23.4 | 6.6 | 16.8 | 0.92 | 0.299 |
| Lucas Giolito (R) | v CHC | 14.8 | 10.7 | 4.1 | 1.61 | 0.349 | 17.5 | 10.4 | 7.0 | 1.57 | 0.331 |
| Tyler Glasnow (R) | at TOR | 23.0 | 14.4 | 8.6 | 1.12 | 0.348 | 25.5 | 10.9 | 14.6 | 1.48 | 0.340 |
| Marco Gonzales (L) | at TEX | 16.8 | 4.0 | 12.8 | 1.60 | 0.352 | 20.9 | 5.1 | 15.8 | 1.06 | 0.338 |
| David Hess (R) | at NYY | 14.9 | 7.9 | 7.0 | 2.37 | 0.355 | 17.3 | 7.3 | 9.9 | 1.29 | 0.362 |
| Rich Hill (L) | v SD | 20.9 | 10.0 | 10.9 | 1.23 | 0.315 | 31.4 | 7.7 | 23.7 | 0.95 | 0.270 |
| Jakob Junis (R) | at DET | 18.4 | 6.9 | 11.5 | 1.40 | 0.337 | 23.0 | 4.8 | 18.2 | 1.81 | 0.329 |
| Jon Lester (L) | at CWS | 27.7 | 5.7 | 21.9 | 0.98 | 0.280 | 21.5 | 8.1 | 13.4 | 1.19 | 0.308 |
| Lance Lynn (R) | v BAL | 15.5 | 13.7 | 1.8 | 1.44 | 0.356 | 26.2 | 7.6 | 18.5 | 0.85 | 0.283 |
| Mike Minor (L) | v SEA | 28.6 | 4.8 | 23.8 | 0.84 | 0.267 | 21.8 | 6.6 | 15.2 | 1.22 | 0.299 |
| Jacob Nix (R) | at LAD | 14.0 | 5.8 | 8.1 | 1.93 | 0.382 | 9.9 | 7.0 | 2.8 | 0.52 | 0.329 |
| Corey Oswalt (R) | at WAS | 11.9 | 7.3 | 4.6 | 1.42 | 0.314 | 17.8 | 5.2 | 12.6 | 2.67 | 0.382 |
| Thomas Pannone (L) | v TB | 29.6 | 7.4 | 22.2 | 0.00 | 0.333 | 13.0 | 7.0 | 6.0 | 1.78 | 0.281 |
| Rick Porcello (R) | at CLE | 22.5 | 5.5 | 17.0 | 1.32 | 0.310 | 21.2 | 4.3 | 16.8 | 1.27 | 0.308 |
| Dereck Rodriguez (R) | at STL | 19.5 | 6.0 | 13.5 | 0.52 | 0.294 | 19.0 | 8.2 | 10.8 | 0.47 | 0.257 |
| Antonio Senzatela (R) | at ARI | 16.8 | 8.9 | 7.9 | 1.09 | 0.321 | 18.9 | 7.5 | 11.4 | 1.10 | 0.334 |
| Jose Urena (R) | v CIN | 13.0 | 7.8 | 5.3 | 1.41 | 0.330 | 20.9 | 8.0 | 12.9 | 1.01 | 0.301 |
| Justin Verlander (R) | v LAA | 32.9 | 7.9 | 25.0 | 1.33 | 0.276 | 25.7 | 5.2 | 20.5 | 1.09 | 0.275 |
| Austin Voth (R) | v NYM | 13.3 | 6.7 | 6.7 | 2.70 | 0.362 | 7.7 | 15.4 | -7.7 | 0.00 | 0.446 |
| Adam Wainwright (R) | v SF | 18.5 | 9.6 | 8.9 | 1.25 | 0.357 | 18.7 | 6.4 | 12.3 | 0.84 | 0.321 |
| Trevor Williams (R) | v MIL | 14.6 | 7.5 | 7.1 | 0.95 | 0.312 | 21.0 | 8.4 | 12.6 | 0.90 | 0.297 |
| Jordan Zimmermann (R) | v KC | 16.9 | 5.8 | 11.1 | 1.60 | 0.350 | 15.4 | 5.1 | 10.3 | 1.57 | 0.356 |
