Not enough days in 1989 season to compile WAA record.
| Date | Rank | WAA | TeamID |
|---|---|---|---|
| 19890427 | XXXXX | 0.27 | SEA |
| 19890511 | XXXXX | 1.03 | SEA |
| 19890525 | XXXXX | 0.36 | SEA |
| 19890608 | XXXXX | 1.02 | WAS |
| 19890622 | +099+ | 1.36 | WAS |
| 19890706 | +042+ | 2.57 | WAS |
| 19890723 | +029+ | 3.27 | WAS |
| 19890806 | +011+ | 4.68 | WAS |
| 19890820 | +010+ | 5.42 | WAS |
| 19890903 | +032+ | 4.21 | WAS |
| 19890917 | +019+ | 5.11 | WAS |
| 19891001 | +019+ | 5.55 | WAS |
Mark Langston Post Season Games
| Rank | WAA | IP | ERA | Gs | Gr | Tm |
|---|---|---|---|---|---|---|
| XXXXX | -0.46 | 2 | 13.5 | 0 | 4 | SDN |
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