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 |
| Tanner Roark | Nick Pivetta | Phillies | 98 | 95 | 120 | 97 | 124 | 109 | 3:05 PM | ||
| Phillies | 98 | 95 | 120 | 97 | 124 | 109 | 6:35 PM | ||||
| Hyun-Jin Ryu | Luis Castillo | Reds | 104 | 100 | 119 | 98 | 108 | 106 | 9.0 | 150 | 6:40 PM |
| Framber Valdez | Jordan Zimmermann | Tigers | 103 | 98 | 104 | 103 | 101 | 104 | 6:40 PM | ||
| Mike Fiers | Alex Cobb | Orioles | |||||||||
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 |
| Tanner Roark | Nick Pivetta | Phillies | 98 | 95 | 120 | 97 | 124 | 109 | 3:05 PM | ||
| Phillies | 98 | 95 | 120 | 97 | 124 | 109 | 6:35 PM | ||||
| Hyun-Jin Ryu | Luis Castillo | Reds | 104 | 100 | 119 | 98 | 108 | 106 | 9.0 | 150 | 6:40 PM |
| Framber Valdez | Jordan Zimmermann | Tigers | 103 | 98 | 104 | 103 | 101 | 104 | 6:40 PM | ||
| Mike Fiers | Alex Cobb | Orioles | 106 | 103 | 114 | 101 | 121 | 94 | 9.0 | 165 | 7:05 PM |
| Ryan Borucki | Chris Sale | Red Sox | 114 | 112 | 78 | 109 | 105 | 99 | 8.5 | -330 | 7:10 PM |
| Shane Bieber | Tyler Glasnow | Rays | 92 | 95 | 97 | 94 | 90 | 110 | 8.0 | -105 | 7:10 PM |
| Jose Urena | Jacob deGrom | Mets | 90 | 93 | 101 | 90 | 92 | 106 | 7:10 PM | ||
| Jhoulys Chacin | Jose Quintana | Cubs | 98 | 99 | 88 | 98 | 114 | 100 | 8:05 PM | ||
| Sonny Gray | Tyler Duffey | Twins | 105 | 103 | 95 | 105 | 113 | 93 | 8:10 PM | ||
| Joe Musgrove | Miles Mikolas | Cardinals | 91 | 102 | 97 | 100 | 82 | 95 | 8.0 | -150 | 8:15 PM |
| Dylan Covey | Brad Keller | Royals | 103 | 102 | 85 | 102 | 76 | 94 | 8:15 PM | ||
| Zack Greinke | Antonio Senzatela | Rockies | 138 | 121 | 117 | 116 | 118 | 87 | 10.5 | 110 | 8:40 PM |
| Adrian Sampson | Odrisamer Despaigne | Angels | 91 | 96 | 91 | 96 | 102 | 109 | 10:07 PM | ||
| Bryan Mitchell | Marco Gonzales | Mariners | 91 | 96 | 105 | 94 | 97 | 104 | 8.0 | -210 | 10:10 PM |
| Mike Foltynewicz | Andrew Suarez | Giants | 90 | 97 | 53 | 100 | 74 | 99 | 7.5 | 120 | 10:15 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% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Shane Bieber (R) | at TB | 91.3 | 24.0 | 4.1 | 19.8 | 0.99 | 4.63 | 1.36 | $8,400 | $8,900 | 106 | 22.6 |
| Ryan Borucki (L) | at BOS | 69.7 | 14.5 | 7.4 | 7.1 | 0.65 | 4.39 | 1.48 | $4,700 | $6,200 | 93 | 21.7 |
| Luis Castillo (R) | v LAD | 237.7 | 25.1 | 7.6 | 17.4 | 1.44 | 4.17 | 1.19 | $7,800 | $8,100 | 116 | 22.1 |
| Jhoulys Chacin (R) | at CHC | 348.3 | 19.9 | 9.1 | 10.8 | 0.88 | 3.75 | 1.25 | $7,500 | $8,300 | 104 | 20.9 |
| Alex Cobb (R) | v OAK | 329.7 | 16.3 | 6.2 | 10.2 | 1.26 | 4.26 | 1.31 | $5,700 | $7,400 | 110 | 21.7 |
| Dylan Covey (R) | at KC | 169.3 | 14.9 | 10.2 | 4.8 | 1.65 | 6.38 | 1.59 | $5,900 | $5,500 | 90 | 21.9 |
| Jacob deGrom (R) | v MIA | 389.3 | 30.0 | 6.5 | 23.6 | 0.86 | 2.64 | 1.08 | $13,500 | $11,800 | 81 | 22.3 |
| Odrisamer Despaigne (R) | v TEX | 90.7 | 14.3 | 9.8 | 4.4 | 0.60 | 4.86 | 1.53 | $4,100 | $5,500 | 99 | 24.6 |
| Tyler Duffey (R) | v NYY | 90.0 | 20.7 | 5.1 | 15.7 | 1.50 | 5.80 | 1.36 | $4,000 | $5,500 | 107 | 22.1 |
| Mike Fiers (R) | at BAL | 306.0 | 20.6 | 7.2 | 13.4 | 1.74 | 4.29 | 1.30 | $9,400 | $7,600 | 85 | 25.1 |
| Mike Foltynewicz (R) | at SF | 311.0 | 24.1 | 8.9 | 15.2 | 1.01 | 3.76 | 1.30 | $11,200 | $10,200 | 85 | 23.8 |
| Tyler Glasnow (R) | v CLE | 149.3 | 25.0 | 13.4 | 11.6 | 1.39 | 5.91 | 1.60 | $8,700 | $5,900 | 108 | 18.8 |
| Marco Gonzales (L) | v SD | 185.7 | 20.2 | 4.9 | 15.3 | 1.16 | 4.70 | 1.38 | $5,400 | $7,200 | 98 | 24.1 |
| Sonny Gray (R) | at MIN | 285.7 | 21.9 | 9.0 | 12.9 | 1.04 | 4.16 | 1.33 | $7,800 | $6,900 | 94 | 22.2 |
| Zack Greinke (R) | at COL | 383.7 | 25.8 | 5.3 | 20.4 | 1.22 | 3.14 | 1.07 | $8,000 | $9,400 | 78 | 23.3 |
| Brad Keller (R) | v CWS | 120.3 | 16.2 | 8.8 | 7.4 | 0.52 | 3.14 | 1.33 | $5,700 | $7,600 | 97 | 25.7 |
| Miles Mikolas (R) | v PIT | 173.7 | 16.8 | 3.8 | 13.0 | 0.73 | 3.06 | 1.13 | $7,600 | $7,100 | 97 | 18.8 |
| Bryan Mitchell (R) | at SEA | 86.0 | 10.3 | 12.5 | -2.2 | 1.15 | 6.28 | 1.84 | $5,200 | $5,800 | 105 | 19.6 |
| Joe Musgrove (R) | at STL | 212.7 | 20.8 | 5.5 | 15.3 | 1.27 | 4.27 | 1.26 | $9,100 | $7,700 | 99 | 21.7 |
| Nick Pivetta (R) | v WAS | 278.0 | 26.0 | 8.3 | 17.7 | 1.49 | 5.31 | 1.40 | $7,400 | $7,500 | 101 | 19.9 |
| Jose Quintana (L) | v MIL | 336.3 | 23.6 | 8.7 | 14.9 | 1.15 | 4.15 | 1.28 | $8,200 | $8,200 | 90 | 19.7 |
| Tanner Roark (R) | at PHI | 351.7 | 20.6 | 7.5 | 13.1 | 1.18 | 4.45 | 1.30 | $7,300 | $7,300 | 100 | 24.5 |
| Hyun-Jin Ryu (L) | at CIN | 185.0 | 23.6 | 7.4 | 16.3 | 1.36 | 3.26 | 1.26 | $8,300 | $9,000 | 106 | 20.5 |
| Chris Sale (L) | v TOR | 360.3 | 37.2 | 5.4 | 31.8 | 0.85 | 2.52 | 0.92 | $13,600 | $7,000 | 88 | 20.6 |
| Adrian Sampson (R) | at LAA | 0.3 | 16.7 | 0.0 | 16.7 | 27.00 | 54.00 | 12.00 | $4,800 | $5,500 | 114 | 20.3 |
| Antonio Senzatela (R) | v ARI | 202.3 | 17.9 | 8.1 | 9.7 | 1.11 | 4.76 | 1.34 | $4,800 | $5,700 | 88 | 23.2 |
| Andrew Suarez (L) | v ATL | 139.3 | 20.6 | 6.3 | 14.3 | 1.36 | 4.33 | 1.27 | $6,900 | $6,500 | 107 | 20.7 |
| Jose Urena (R) | at NYM | 320.7 | 17.1 | 7.9 | 9.2 | 1.21 | 4.10 | 1.24 | $7,100 | $6,700 | 95 | 22.3 |
| Framber Valdez (L) | at DET | 19.7 | 18.8 | 12.5 | 6.3 | 0.46 | 1.37 | 1.07 | $7,600 | $7,000 | 101 | 20.3 |
| Jordan Zimmermann (R) | v HOU | 271.7 | 16.9 | 5.3 | 11.6 | 1.66 | 5.23 | 1.41 | $6,200 | $6,400 | 106 | 19.3 |
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 |
| Shane Bieber (R) | at TB | 25.4 | 6.7 | 18.7 | 1.27 | 0.403 | 22.6 | 1.2 | 21.4 | 0.85 | 0.296 |
| Ryan Borucki (L) | at BOS | 14.3 | 3.2 | 11.1 | 0.60 | 0.303 | 14.0 | 8.6 | 5.4 | 0.74 | 0.353 |
| Luis Castillo (R) | v LAD | 23.1 | 8.4 | 14.7 | 1.68 | 0.344 | 26.5 | 7.2 | 19.3 | 1.07 | 0.276 |
| Jhoulys Chacin (R) | at CHC | 15.2 | 10.7 | 4.5 | 1.08 | 0.334 | 23.9 | 7.3 | 16.6 | 0.67 | 0.277 |
| Alex Cobb (R) | v OAK | 18.2 | 7.9 | 10.3 | 1.18 | 0.328 | 14.8 | 4.6 | 10.3 | 1.41 | 0.336 |
| Dylan Covey (R) | at KC | 16.7 | 10.9 | 5.7 | 1.75 | 0.361 | 13.0 | 9.7 | 3.3 | 1.60 | 0.365 |
| Jacob deGrom (R) | v MIA | 25.9 | 6.9 | 19.0 | 0.72 | 0.285 | 30.7 | 5.8 | 24.9 | 1.00 | 0.270 |
| Odrisamer Despaigne (R) | v TEX | 13.0 | 11.1 | 1.9 | 0.77 | 0.360 | 14.9 | 9.0 | 6.0 | 0.58 | 0.311 |
| Tyler Duffey (R) | v NYY | 21.4 | 5.3 | 16.1 | 1.11 | 0.308 | 18.5 | 5.3 | 13.1 | 2.02 | 0.377 |
| Mike Fiers (R) | at BAL | 19.5 | 7.8 | 11.7 | 1.51 | 0.330 | 20.1 | 5.6 | 14.6 | 1.71 | 0.348 |
| Mike Foltynewicz (R) | at SF | 22.6 | 10.2 | 12.4 | 1.33 | 0.333 | 23.9 | 6.4 | 17.5 | 0.92 | 0.298 |
| Tyler Glasnow (R) | v CLE | 23.7 | 15.0 | 8.7 | 1.24 | 0.364 | 25.8 | 11.3 | 14.4 | 1.27 | 0.331 |
| Marco Gonzales (L) | v SD | 17.0 | 3.5 | 13.5 | 1.72 | 0.367 | 20.9 | 5.2 | 15.6 | 1.05 | 0.337 |
| Sonny Gray (R) | at MIN | 20.8 | 8.6 | 12.2 | 0.86 | 0.307 | 20.8 | 8.9 | 11.9 | 1.38 | 0.337 |
| Zack Greinke (R) | at COL | 23.4 | 5.5 | 18.0 | 1.04 | 0.290 | 24.9 | 5.7 | 19.2 | 1.41 | 0.298 |
| Brad Keller (R) | v CWS | 16.4 | 14.0 | 2.3 | 0.76 | 0.331 | 16.1 | 5.1 | 11.0 | 0.41 | 0.268 |
| Miles Mikolas (R) | v PIT | 15.5 | 3.8 | 11.8 | 1.04 | 0.322 | 19.4 | 4.3 | 15.1 | 0.45 | 0.229 |
| Bryan Mitchell (R) | at SEA | 14.4 | 15.9 | -1.5 | 0.63 | 0.356 | 7.4 | 9.5 | -2.0 | 1.29 | 0.383 |
| Joe Musgrove (R) | at STL | 21.1 | 6.7 | 14.5 | 1.20 | 0.333 | 20.3 | 5.0 | 15.2 | 1.34 | 0.315 |
| Nick Pivetta (R) | v WAS | 26.3 | 9.2 | 17.1 | 1.12 | 0.327 | 25.9 | 7.5 | 18.4 | 1.86 | 0.356 |
| Jose Quintana (L) | v MIL | 23.6 | 4.6 | 19.0 | 0.52 | 0.270 | 22.7 | 8.6 | 14.2 | 1.25 | 0.316 |
| Tanner Roark (R) | at PHI | 19.8 | 9.8 | 10.0 | 1.06 | 0.319 | 21.1 | 6.2 | 14.9 | 0.92 | 0.284 |
| Hyun-Jin Ryu (L) | at CIN | 19.3 | 8.9 | 10.4 | 1.87 | 0.367 | 24.5 | 7.3 | 17.3 | 1.28 | 0.304 |
| Chris Sale (L) | v TOR | 33.5 | 3.3 | 30.2 | 0.75 | 0.230 | 32.5 | 5.6 | 27.0 | 0.97 | 0.268 |
| Adrian Sampson (R) | at LAA | 16.7 | 16.7 | 0.0 | 9.00 | 0.597 | 6.7 | 0.0 | 6.7 | 2.45 | 0.427 |
| Antonio Senzatela (R) | v ARI | 16.3 | 9.2 | 7.1 | 1.09 | 0.315 | 18.8 | 7.2 | 11.6 | 1.10 | 0.331 |
| Andrew Suarez (L) | v ATL | 21.4 | 2.9 | 18.6 | 0.24 | 0.232 | 20.3 | 7.4 | 13.0 | 1.59 | 0.356 |
| Jose Urena (R) | at NYM | 12.6 | 8.1 | 4.5 | 1.36 | 0.332 | 20.7 | 7.8 | 12.9 | 1.04 | 0.306 |
| Framber Valdez (L) | at DET | 28.6 | 9.5 | 19.0 | 0.00 | 0.253 | 10.8 | 13.5 | -2.7 | 0.00 | 0.189 |
| Jordan Zimmermann (R) | v HOU | 17.1 | 5.7 | 11.4 | 1.57 | 0.348 | 15.5 | 5.2 | 10.3 | 1.53 | 0.358 |
