Not enough days in 1999 season to compile WAA record.
| Date | Rank | WAA | TeamID |
|---|---|---|---|
| 19990416 | XXXXX | 0.38 | OAK |
| 19990430 | XXXXX | 0.99 | OAK |
| 19990514 | +071+ | 1.33 | OAK |
| 19990528 | +094+ | 1.45 | OAK |
| 19990611 | +121+ | 1.41 | OAK |
| 19990625 | +161+ | 1.33 | OAK |
| 19990709 | XXXXX | 0.93 | OAK |
| 19990726 | XXXXX | 0.68 | OAK |
| 19990809 | XXXXX | 1.37 | OAK |
| 19990823 | +198+ | 1.48 | OAK |
| 19990906 | XXXXX | 1.61 | OAK |
| 19990920 | XXXXX | 1.30 | OAK |
| 19991004 | XXXXX | 1.44 | OAK |
T.J. Mathews Post Season Games
| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| XXXXX | 0.14 | 1.7 | 0 | 0 | 3 | SLN |
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