P · 13 seasons · 2007 – 2019 · B/T: L/R
Few careers score higher: Clay Buchholz sits 1st of 0 pitchers all-time in roto value, built over 13 seasons. The peak came in 2010, +8.6, 25th that season and 1830th of 51,303 player-seasons on record. The value came from wins (+10.4), strikeouts (+6.5) and WHIP (+2.1), with no category working against him.
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2007 | BOS | 4 | -2.07 | #599 | #60,533 |
| 2008 | BOS | 16 | -2.06 | #590 | #59,565 |
| 2009 | BOS | 17 | -2.10 | #571 | #64,345 |
| 2010 | BOS | 28 | -2.02 | #536 | #54,471 |
| 2011 | BOS | 14 | -2.11 | #611 | #65,863 |
| 2012 | BOS | 29 | -2.20 | #1,043 | #77,164 |
| 2013 | BOS | 16 | -2.10 | #589 | #63,980 |
| 2014★ | BOS | 28 | -2.00 | #562 | #52,181 |
| 2015 | BOS | 18 | -2.27 | #1,209 | #84,695 |
| 2016 | BOS | 37 | -2.09 | #1,068 | #63,603 |
| 2017 | PHI | 2 | -2.14 | #1,089 | #70,774 |
| 2018 | ARI | 17 | -2.83 | #1,352 | #106,824 |
| 2019 | TOR | 12 | -2.07 | #603 | #60,884 |
★ Best season by Z
| Season ↑ | Tm | G | Z | Szn | All-Time |
|---|---|---|---|---|---|
| 2007 | BOS | 4 | 0.17 | #224 | #17,676 |
| 2008 | BOS | 16 | -3.75 | #622 | #49,324 |
| 2009 | BOS | 16 | 1.04 | #172 | #14,493 |
| 2010★ | BOS | 28 | 8.65 | #25 | #1,830 |
| 2011 | BOS | 14 | 0.95 | #178 | #14,858 |
| 2012 | BOS | 29 | 1.39 | #166 | #13,373 |
| 2013 | BOS | 16 | 7.09 | #38 | #3,010 |
| 2014 | BOS | 28 | -2.26 | #517 | #35,451 |
| 2015 | BOS | 18 | 3.31 | #107 | #8,428 |
| 2016 | BOS | 37 | 0.68 | #215 | #15,739 |
| 2017 | PHI | 2 | -3.26 | #692 | #47,139 |
| 2018 | ARI | 16 | 5.61 | #56 | #4,601 |
| 2019 | TOR | 12 | -2.76 | #728 | #42,721 |
★ Best season by Z