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 |
| Blake Snell | Masahiro Tanaka | Yankees | 103 | 95 | 142 | 99 | 123 | 92 | 8.0 | -180 | 1:05 PM |
| Corey Oswalt | Ranger Suarez | Phillies | 98 | 95 | 120 | 97 | 124 | 109 | 4:05 PM | ||
| Jon Lester | Ivan Nova | Pirates | 96 | 97 | 101 | 103 | 83 | 94 | 8.5 | -110 | 7:05 PM |
| Tanner Roark | Luke Weaver | Cardinals | 91 | 102 | 97 | 100 | 82 | 95 | 7:15 | ||
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 |
| Blake Snell | Masahiro Tanaka | Yankees | 103 | 95 | 142 | 99 | 123 | 92 | 8.0 | -180 | 1:05 PM |
| Corey Oswalt | Ranger Suarez | Phillies | 98 | 95 | 120 | 97 | 124 | 109 | 4:05 PM | ||
| Jon Lester | Ivan Nova | Pirates | 96 | 97 | 101 | 103 | 83 | 94 | 8.5 | -110 | 7:05 PM |
| Tanner Roark | Luke Weaver | Cardinals | 91 | 102 | 97 | 100 | 82 | 95 | 7:15 PM | ||
| Jon Gray | Julio Teheran | Braves | 102 | 106 | 116 | 98 | 81 | 98 | 8.5 | -110 | 7:35 PM |
| Steven Matz | Zach Eflin | Phillies | 98 | 95 | 120 | 97 | 124 | 109 | 7:35 PM | ||
| Taylor Cole | Ariel Jurado | Rangers | 117 | 108 | 107 | 110 | 106 | 93 | 8:05 PM | ||
| Francisco Liriano | Ervin Santana | Twins | 105 | 103 | 95 | 105 | 113 | 93 | 9.0 | -160 | 8:10 PM |
| Sam Gaviglio | Glenn Sparkman | Royals | 103 | 102 | 85 | 102 | 76 | 94 | 9.5 | 115 | 8:15 PM |
| Clay Buchholz | Jacob Nix | Padres | 92 | 97 | 85 | 97 | 97 | 103 | 8.0 | 115 | 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% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clay Buchholz (R) | at SD | 71.3 | 19.8 | 6.3 | 13.5 | 1.01 | 3.66 | 1.29 | $9,500 | $8,500 | 88 | 24.9 |
| Taylor Cole (R) | at TEX | 19.3 | 29.5 | 7.7 | 21.8 | 0.47 | 4.66 | 1.19 | $4,000 | $5,500 | 101 | 24.7 |
| Zach Eflin (R) | v NYM | 155.0 | 18.6 | 4.8 | 13.9 | 1.68 | 4.65 | 1.23 | $8,200 | $9,300 | 95 | 22.3 |
| Sam Gaviglio (R) | at KC | 157.7 | 19.1 | 7.8 | 11.3 | 1.71 | 4.62 | 1.40 | $6,800 | $7,200 | 81 | 21.8 |
| Jon Gray (R) | at ATL | 237.7 | 25.8 | 6.6 | 19.1 | 0.91 | 4.28 | 1.30 | $8,700 | $9,100 | 99 | 20.4 |
| Ariel Jurado (R) | v LAA | 20.7 | 9.2 | 9.2 | 0.0 | 2.18 | 5.66 | 1.40 | $4,800 | $6,200 | 124 | 19.5 |
| Jon Lester (L) | at PIT | 315.0 | 21.4 | 8.4 | 13.0 | 1.37 | 4.14 | 1.33 | $7,300 | $7,400 | 99 | 20.7 |
| Francisco Liriano (L) | at MIN | 192.7 | 18.9 | 12.7 | 6.2 | 1.17 | 5.04 | 1.54 | $5,800 | $5,800 | 80 | 24.6 |
| Steven Matz (L) | at PHI | 174.3 | 19.2 | 7.8 | 11.4 | 1.50 | 5.01 | 1.41 | $5,100 | $6,800 | 88 | 21.4 |
| Jacob Nix (R) | v ARI | 6.0 | 16.7 | 8.3 | 8.3 | 0.00 | 0.00 | 1.00 | $7,800 | $6,400 | 94 | 22.5 |
| Ivan Nova (R) | v CHC | 311.3 | 16.6 | 4.8 | 11.8 | 1.42 | 4.25 | 1.29 | $6,500 | $7,600 | 105 | 20.7 |
| Corey Oswalt (R) | at PHI | 39.3 | 16.4 | 5.7 | 10.7 | 1.60 | 5.03 | 1.07 | $5,200 | $6,200 | 105 | 23.3 |
| Tanner Roark (R) | at STL | 325.7 | 21.0 | 7.9 | 13.1 | 1.08 | 4.42 | 1.31 | $9,100 | $8,600 | 98 | 21.5 |
| Ervin Santana (R) | v DET | 232.0 | 18.9 | 7.0 | 11.9 | 1.44 | 3.57 | 1.16 | $7,000 | $6,000 | 75 | 22.6 |
| Blake Snell (L) | at NYY | 257.3 | 24.9 | 10.3 | 14.7 | 0.98 | 3.11 | 1.18 | $9,000 | $8,700 | 126 | 22.4 |
| Glenn Sparkman (R) | v TOR | 17.0 | 17.4 | 9.3 | 8.1 | 1.06 | 8.47 | 2.12 | $4,500 | $5,500 | 103 | 22.6 |
| Ranger Suarez (L) | v NYM | 5.0 | 14.3 | 4.8 | 9.5 | 3.60 | 7.20 | 1.40 | $7,100 | $5,500 | 78 | 27.2 |
| Masahiro Tanaka (R) | v TB | 286.3 | 25.6 | 5.9 | 19.7 | 1.79 | 4.49 | 1.19 | $8,000 | $9,800 | 101 | 22.5 |
| Julio Teheran (R) | v COL | 315.0 | 19.9 | 10.0 | 9.9 | 1.51 | 4.43 | 1.32 | $8,200 | $7,800 | 83 | 23.0 |
| Luke Weaver (R) | v WAS | 182.0 | 23.5 | 7.7 | 15.8 | 1.14 | 4.40 | 1.35 | $7,100 | $7,000 | 105 | 19.6 |
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 |
| Clay Buchholz (R) | at SD | 15.9 | 10.2 | 5.8 | 0.88 | 0.322 | 18.5 | 6.4 | 12.1 | 1.57 | 0.316 |
| Taylor Cole (R) | at TEX | 27.5 | 10.0 | 17.5 | 0.00 | 0.248 | 31.6 | 5.3 | 26.3 | 1.08 | 0.376 |
| Zach Eflin (R) | v NYM | 14.6 | 6.0 | 8.6 | 2.42 | 0.370 | 18.4 | 4.5 | 13.9 | 1.02 | 0.300 |
| Sam Gaviglio (R) | at KC | 15.2 | 8.7 | 6.5 | 1.55 | 0.358 | 22.3 | 7.0 | 15.3 | 1.84 | 0.343 |
| Jon Gray (R) | at ATL | 25.5 | 7.5 | 18.0 | 1.10 | 0.314 | 26.3 | 7.1 | 19.2 | 0.75 | 0.307 |
| Ariel Jurado (R) | v LAA | 10.0 | 15.0 | -5.0 | 2.16 | 0.421 | 8.5 | 4.3 | 4.3 | 2.19 | 0.330 |
| Jon Lester (L) | at PIT | 27.3 | 5.2 | 22.2 | 0.94 | 0.273 | 21.3 | 8.4 | 12.8 | 1.28 | 0.312 |
| Francisco Liriano (L) | at MIN | 22.6 | 8.5 | 14.1 | 0.87 | 0.288 | 20.3 | 13.2 | 7.1 | 1.42 | 0.355 |
| Steven Matz (L) | at PHI | 17.2 | 7.8 | 9.4 | 0.51 | 0.321 | 22.2 | 6.7 | 15.5 | 1.49 | 0.328 |
| Jacob Nix (R) | v ARI | 13.3 | 13.3 | 0.0 | 0.00 | 0.269 | 22.2 | 0.0 | 22.2 | 0.00 | 0.098 |
| Ivan Nova (R) | v CHC | 12.5 | 4.4 | 8.0 | 1.60 | 0.363 | 21.4 | 4.6 | 16.8 | 1.19 | 0.308 |
| Corey Oswalt (R) | at PHI | 10.1 | 8.7 | 1.4 | 1.59 | 0.313 | 21.1 | 3.3 | 17.8 | 1.61 | 0.279 |
| Tanner Roark (R) | at STL | 19.8 | 10.0 | 9.8 | 1.06 | 0.320 | 21.5 | 6.3 | 15.3 | 0.83 | 0.283 |
| Ervin Santana (R) | v DET | 16.2 | 6.9 | 9.3 | 1.20 | 0.290 | 22.3 | 7.2 | 15.1 | 1.24 | 0.307 |
| Blake Snell (L) | at NYY | 27.6 | 10.7 | 16.9 | 0.13 | 0.235 | 24.2 | 11.0 | 13.1 | 1.03 | 0.311 |
| Glenn Sparkman (R) | v TOR | 16.2 | 18.9 | -2.7 | 1.29 | 0.392 | 18.4 | 2.0 | 16.3 | 0.90 | 0.441 |
| Ranger Suarez (L) | v NYM | 33.3 | 0.0 | 33.3 | 0.00 | 0.295 | 6.7 | 6.7 | 0.0 | 4.91 | 0.442 |
| Masahiro Tanaka (R) | v TB | 23.3 | 5.0 | 18.3 | 1.39 | 0.295 | 23.8 | 5.5 | 18.2 | 1.53 | 0.311 |
| Julio Teheran (R) | v COL | 17.0 | 12.6 | 4.4 | 1.42 | 0.333 | 24.5 | 4.1 | 20.3 | 1.27 | 0.284 |
| Luke Weaver (R) | v WAS | 22.3 | 8.9 | 13.4 | 1.30 | 0.348 | 25.7 | 6.4 | 19.3 | 1.18 | 0.311 |
