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 |
| Ryan Borucki | Sean Gilmartin | Orioles | 106 | 103 | 114 | 101 | 121 | 94 | 7:05 PM | ||
| Brad Keller | Joe Musgrove | Pirates | 96 | 97 | 101 | 103 | 83 | 94 | 8.0 | -180 | 7:05 PM |
| Zack Wheeler | Jake Arrieta | Phillies | 98 | 95 | 120 | 97 | 124 | 109 | 7.5 | -125 | 7:05 PM |
| Kohl Stewart | Jordan Zimmermann | Tigers | 103 | 98 | 104 | 103 | 101 | 104 | 7:10 | ||
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 [email protected].
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 |
| Ryan Borucki | Sean Gilmartin | Orioles | 106 | 103 | 114 | 101 | 121 | 94 | 7:05 PM | ||
| Brad Keller | Joe Musgrove | Pirates | 96 | 97 | 101 | 103 | 83 | 94 | 8.0 | -180 | 7:05 PM |
| Zack Wheeler | Jake Arrieta | Phillies | 98 | 95 | 120 | 97 | 124 | 109 | 7.5 | -125 | 7:05 PM |
| Kohl Stewart | Jordan Zimmermann | Tigers | 103 | 98 | 104 | 103 | 101 | 104 | 7:10 PM | ||
| Erick Fedde | Trevor Richards | Marlins | 84 | 93 | 86 | 91 | 83 | 103 | 8.5 | 130 | 7:10 PM |
| Miles Mikolas | Mike Foltynewicz | Braves | 102 | 106 | 116 | 98 | 81 | 98 | 8.5 | -135 | 7:35 PM |
| Anthony DeSclafani | Wade Miley | Brewers | 105 | 103 | 131 | 96 | 108 | 103 | 9.0 | -170 | 7:40 PM |
| Tyler Glasnow | Adrian Sampson | Rangers | 117 | 108 | 107 | 110 | 106 | 93 | 8:05 PM | ||
| Mike Leake | Framber Valdez | Astros | 83 | 93 | 109 | 94 | 109 | 101 | 8.5 | -170 | 8:10 PM |
| Kyle Hendricks | Patrick Corbin | Diamondbacks | 116 | 109 | 106 | 105 | 111 | 100 | 7.5 | -130 | 9:40 PM |
| Andrew Suarez | Bryan Mitchell | Padres | 92 | 97 | 85 | 97 | 97 | 103 | 7.5 | -115 | 10:10 PM |
| Jon Gray | Hyun-Jin Ryu | 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% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jake Arrieta (R) | v NYM | 328.0 | 21.2 | 7.8 | 13.4 | 1.15 | 3.59 | 1.23 | $7,800 | $8,200 | 98 | 22.1 |
| Ryan Borucki (L) | at BAL | 76.0 | 15.0 | 7.5 | 7.5 | 0.59 | 4.26 | 1.42 | $5,700 | $6,300 | 73 | 25.1 |
| Patrick Corbin (L) | v CHC | 375.7 | 26.1 | 6.6 | 19.5 | 0.96 | 3.55 | 1.22 | $11,900 | $10,000 | 96 | 22.0 |
| Anthony DeSclafani (R) | at MIL | 99.3 | 20.9 | 6.2 | 14.6 | 1.81 | 4.80 | 1.29 | $5,800 | $6,200 | 104 | 23.6 |
| Erick Fedde (R) | at MIA | 54.0 | 21.0 | 8.8 | 12.2 | 1.83 | 6.33 | 1.65 | $5,300 | $6,200 | 80 | 22.6 |
| Mike Foltynewicz (R) | v STL | 320.0 | 24.0 | 8.8 | 15.3 | 0.98 | 3.68 | 1.28 | $10,800 | $9,800 | 98 | 21.9 |
| Sean Gilmartin (L) | v TOR | 19.7 | 13.0 | 10.9 | 2.2 | 2.29 | 5.49 | 1.78 | $4,000 | $5,500 | 85 | 21.1 |
| Tyler Glasnow (R) | at TEX | 156.3 | 24.4 | 12.9 | 11.6 | 1.44 | 5.76 | 1.57 | $7,900 | $6,000 | 98 | 24.5 |
| Jon Gray (R) | at LAD | 271.7 | 24.8 | 6.7 | 18.2 | 1.09 | 4.34 | 1.30 | $8,000 | $7,800 | 116 | 22.2 |
| Kyle Hendricks (R) | at ARI | 314.3 | 20.8 | 6.3 | 14.6 | 1.09 | 3.41 | 1.20 | $7,700 | $8,500 | 88 | 23.3 |
| Brad Keller (R) | at PIT | 127.3 | 16.5 | 8.7 | 7.8 | 0.49 | 3.04 | 1.30 | $8,100 | $8,000 | 98 | 19.0 |
| Mike Leake (R) | at HOU | 364.0 | 16.0 | 4.6 | 11.3 | 1.04 | 3.96 | 1.28 | $7,600 | $7,800 | 104 | 19.2 |
| Miles Mikolas (R) | at ATL | 180.7 | 17.2 | 3.8 | 13.4 | 0.70 | 2.99 | 1.12 | $8,600 | $7,300 | 100 | 21.1 |
| Wade Miley (L) | v CIN | 226.0 | 18.5 | 11.6 | 6.8 | 1.12 | 4.58 | 1.57 | $7,200 | $7,500 | 109 | 21.4 |
| Bryan Mitchell (R) | v SF | 92.0 | 10.2 | 12.3 | -2.1 | 1.17 | 5.97 | 1.78 | $5,900 | $5,900 | 85 | 23.8 |
| Joe Musgrove (R) | v KC | 218.7 | 21.1 | 5.5 | 15.5 | 1.23 | 4.32 | 1.25 | $9,200 | $8,800 | 92 | 21.6 |
| Trevor Richards (R) | v WAS | 107.7 | 22.6 | 10.5 | 12.0 | 1.09 | 4.85 | 1.46 | $6,200 | $6,100 | 102 | 19.9 |
| Hyun-Jin Ryu (L) | v COL | 190.0 | 23.7 | 7.3 | 16.4 | 1.42 | 3.32 | 1.27 | $9,000 | $9,100 | 100 | 21.5 |
| Adrian Sampson (R) | v TB | 5.3 | 12.5 | 4.2 | 8.3 | 3.38 | 5.06 | 1.31 | $5,600 | $5,600 | 106 | 22.5 |
| Kohl Stewart (R) | at DET | 24.7 | 12.2 | 13.0 | -0.9 | 0.36 | 5.47 | 1.78 | $4,700 | $5,500 | 81 | 23.1 |
| Andrew Suarez (L) | at SD | 145.3 | 20.1 | 6.5 | 13.6 | 1.36 | 4.33 | 1.28 | $6,400 | $7,000 | 96 | 23.7 |
| Framber Valdez (L) | v SEA | 23.7 | 18.0 | 14.0 | 4.0 | 0.76 | 2.66 | 1.27 | $7,000 | $7,200 | 95 | 19.9 |
| Zack Wheeler (R) | at PHI | 261.7 | 23.3 | 8.4 | 14.9 | 1.00 | 3.89 | 1.28 | $10,500 | $10,400 | 102 | 24.5 |
| Jordan Zimmermann (R) | v MIN | 276.7 | 16.9 | 5.3 | 11.5 | 1.72 | 5.27 | 1.41 | $7,300 | $6,700 | 94 | 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 |
| Jake Arrieta (R) | v NYM | 22.8 | 11.1 | 11.8 | 1.19 | 0.322 | 21.6 | 6.3 | 15.4 | 0.85 | 0.265 |
| Ryan Borucki (L) | at BAL | 15.6 | 3.9 | 11.7 | 0.50 | 0.301 | 14.8 | 8.6 | 6.3 | 0.62 | 0.329 |
| Patrick Corbin (L) | v CHC | 31.5 | 8.5 | 23.0 | 1.18 | 0.303 | 21.5 | 7.2 | 14.4 | 1.06 | 0.321 |
| Anthony DeSclafani (R) | at MIL | 21.1 | 5.9 | 15.3 | 2.05 | 0.366 | 20.4 | 6.3 | 14.1 | 0.88 | 0.277 |
| Erick Fedde (R) | at MIA | 20.3 | 8.5 | 11.9 | 1.24 | 0.350 | 21.7 | 9.2 | 12.5 | 2.52 | 0.425 |
| Mike Foltynewicz (R) | v STL | 22.7 | 10.0 | 12.8 | 1.26 | 0.325 | 23.7 | 6.4 | 17.3 | 0.90 | 0.297 |
| Sean Gilmartin (L) | v TOR | 16.7 | 6.9 | 9.7 | 0.53 | 0.286 | 11.1 | 12.1 | -1.0 | 3.54 | 0.478 |
| Tyler Glasnow (R) | at TEX | 22.9 | 14.4 | 8.5 | 1.16 | 0.354 | 25.6 | 11.2 | 14.4 | 1.52 | 0.345 |
| Jon Gray (R) | at LAD | 24.9 | 7.7 | 17.2 | 1.17 | 0.316 | 25.7 | 6.9 | 18.8 | 0.91 | 0.312 |
| Kyle Hendricks (R) | at ARI | 23.0 | 7.0 | 15.9 | 1.00 | 0.295 | 20.4 | 5.4 | 15.0 | 0.90 | 0.275 |
| Brad Keller (R) | at PIT | 16.6 | 13.0 | 3.6 | 0.65 | 0.329 | 16.4 | 5.0 | 11.4 | 0.37 | 0.264 |
| Mike Leake (R) | at HOU | 13.6 | 5.0 | 8.6 | 0.99 | 0.320 | 18.5 | 3.9 | 14.6 | 1.07 | 0.322 |
| Miles Mikolas (R) | at ATL | 15.9 | 3.5 | 12.4 | 0.96 | 0.327 | 18.7 | 4.2 | 14.5 | 0.41 | 0.229 |
| Wade Miley (L) | v CIN | 18.3 | 11.5 | 6.8 | 0.45 | 0.295 | 18.9 | 9.2 | 9.7 | 1.42 | 0.354 |
| Bryan Mitchell (R) | v SF | 13.4 | 16.5 | -3.1 | 0.74 | 0.354 | 7.9 | 8.9 | -1.0 | 1.19 | 0.368 |
| Joe Musgrove (R) | v KC | 21.5 | 6.5 | 15.0 | 1.21 | 0.331 | 20.9 | 5.0 | 15.9 | 1.28 | 0.309 |
| Trevor Richards (R) | v WAS | 22.0 | 11.5 | 10.6 | 0.51 | 0.305 | 23.1 | 9.7 | 13.4 | 1.66 | 0.372 |
| Hyun-Jin Ryu (L) | v COL | 19.0 | 8.6 | 10.5 | 1.91 | 0.376 | 25.0 | 6.9 | 18.2 | 1.28 | 0.307 |
| Adrian Sampson (R) | v TB | 18.8 | 6.3 | 12.5 | 5.40 | 0.410 | 6.9 | 3.4 | 3.4 | 2.70 | 0.433 |
| Kohl Stewart (R) | at DET | 5.4 | 10.7 | -5.4 | 0.00 | 0.338 | 18.6 | 15.3 | 3.4 | 0.75 | 0.397 |
| Andrew Suarez (L) | at SD | 20.0 | 3.2 | 16.8 | 0.22 | 0.239 | 20.2 | 7.6 | 12.6 | 1.81 | 0.362 |
| Framber Valdez (L) | v SEA | 30.8 | 15.4 | 15.4 | 0.00 | 0.291 | 13.5 | 13.5 | 0.0 | 0.98 | 0.291 |
| Zack Wheeler (R) | at PHI | 25.5 | 9.6 | 15.9 | 1.29 | 0.323 | 21.3 | 7.3 | 14.0 | 0.76 | 0.286 |
| Jordan Zimmermann (R) | v MIN | 17.0 | 5.8 | 11.2 | 1.58 | 0.347 | 15.5 | 5.1 | 10.5 | 1.58 | 0.356 |
