Joseph Guerra
| 21-year-old Pitcher |
| Boston Red Sox |
| |
| Date of Birth: September 4, 1986 |
| Height: 5-11 Weight: 178 |
| Bats/Throws: R/R |
Basic Statistics
| Basic Statistics |
| Year | Age | | Team | G | W | L | IP | TBF | H | 2B | 3B | HR | R | ER | BB | K | ERA | RA9 |
| 2006 | 19 | Rookie | GCL Red Sox | 10 | 4 | 2 | 49.2 | 202 | 57 | 9 | 2 | 1 | 17 | 14 | 0 | 26 | 2.54 | 3.08 |
| 2007 | 20 | A- | Lowell | 10 | 1 | 3 | 42.2 | 195 | 67 | 14 | 0 | 5 | 30 | 26 | 6 | 28 | 5.48 | 6.33 |
| 2007 | 20 | A | Greenville | 6 | 2 | 0 | 31.1 | 138 | 40 | 15 | 1 | 0 | 16 | 14 | 6 | 6 | 4.02 | 4.60 |
| 2008 | 21 | A | Greenville | 8 | 0 | 2 | 12.1 | 52 | 11 | 2 | 0 | 1 | 9 | 9 | 6 | 10 | 6.57 | 6.57 |
| Extended Statistics |
| Year | Age | | Team | BB/PA | K/PA | BABIP | GB% | HR/Air | FIP | BsRA9 |
| 2006 | 19 | Rookie | GCL Red Sox | 0.0% | 12.9% | .329 | 44% | 1% | 2.66 | 3.38 |
| 2007 | 20 | A- | Lowell | 3.1% | 14.4% | .405 | 57% | 7% | 4.18 | 7.07 |
| 2007 | 20 | A | Greenville | 4.3% | 4.3% | .323 | 58% | 0% | 3.83 | 4.33 |
| 2008 | 21 | A | Greenville | 11.5% | 19.2% | .303 | 48% | 5% | 4.68 | 4.28 |
Longitudinal Trends

The above graph represents 15-day averages over the past couple years.
Available graphs for Guerra: BB/PA, SO/PA, and ERA
Extended Statistics
2008: Greenville | 2008: Lowell | 2007: Greenville
| Split Statistics with Greenville in 2008 |
| Split | IP | TBF | BB/PA | K/PA | BABIP | GB% | ERA |
| April | 12.1 | 52 | 11.5% | 19.2% | .303 | 48% | 6.57 |
| AWAY | 5.0 | 18 | 0.0% | 33.3% | .333 | 50% | 1.80 |
| HOME | 7.1 | 34 | 17.6% | 11.8% | .286 | 48% | 9.82 |
Batted Ball Chart
