John Lannan
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2009-04-06 | WAS | @ FLA | L, 12-6 | 3.0 | 6 | 6 | 6 | 0 | 1 | 16 | 2 | 0 | 2 | 6 | 1 | SP, L |
| 2009-04-11 | WAS | @ ATL | L, 5-3 | 6.0 | 9 | 4 | 4 | 3 | 3 | 29 | 2 | 0 | 1 | 11 | 3 | SP, L |
| 2009-04-17 | WAS | vs. FLA | L, 3-2 | 6.1 | 3 | 1 | 1 | 1 | 8 | 24 | 1 | 0 | 1 | 4 | 5 | SP |
| 2009-04-22 | WAS | vs. ATL | L, 1-0 | 7.0 | 5 | 0 | 0 | 2 | 4 | 28 | 1 | 0 | 0 | 9 | 8 | SP |
| 2009-04-28 | WAS | @ PHI | L, 7-1 | 5.0 | 9 | 6 | 3 | 1 | 2 | 25 | 0 | 0 | 3 | 10 | 2 | SP, L |
| 2009-05-04 | WAS | vs. HOU | W, 9-4 | 6.0 | 9 | 4 | 3 | 2 | 0 | 26 | 4 | 0 | 0 | 9 | 5 | SP, W |
| 2009-05-09 | WAS | @ ARI | W, 2-1 | 6.0 | 3 | 0 | 0 | 6 | 2 | 27 | 1 | 0 | 0 | 9 | 4 | SP, W |
| 2009-05-15 | WAS | vs. PHI | L, 10-6 | 5.2 | 6 | 3 | 3 | 1 | 2 | 25 | 0 | 0 | 0 | 5 | 9 | SP |
| 2009-05-20 | WAS | vs. PIT | L, 2-1 | 7.0 | 7 | 1 | 1 | 2 | 5 | 31 | 2 | 0 | 0 | 7 | 7 | SP |
| 2009-05-25 | WAS | @ NYM | L, 5-2 | 5.0 | 8 | 5 | 5 | 4 | 0 | 23 | 2 | 0 | 1 | 6 | 5 | SP, L |
| 2009-05-31 | WAS | @ PHI | L, 4-2 | 5.0 | 4 | 3 | 3 | 4 | 7 | 23 | 1 | 1 | 1 | 4 | 4 | SP, L |
| 2009-06-06 | WAS | vs. NYM | W, 7-1 | 9.0 | 4 | 1 | 0 | 3 | 2 | 30 | 0 | 0 | 0 | 14 | 5 | SP, W, CG |
| 2009-06-11 | WAS | vs. CIN | W, 3-2 | 6.0 | 5 | 2 | 1 | 2 | 2 | 25 | 0 | 0 | 0 | 4 | 10 | SP |
| 2009-06-17 | WAS | @ NYY | W, 3-2 | 8.1 | 4 | 2 | 2 | 1 | 4 | 30 | 1 | 0 | 2 | 15 | 6 | SP, W |
| 2009-06-23 | WAS | vs. BOS | L, 11-3 | 6.1 | 9 | 3 | 3 | 2 | 3 | 29 | 1 | 1 | 1 | 5 | 10 | SP |
| 2009-06-28 | WAS | @ BAL | W, 5-3 | 7.1 | 6 | 3 | 3 | 3 | 2 | 29 | 2 | 0 | 0 | 9 | 9 | SP, W |
| 2009-07-04 | WAS | vs. ATL | W, 5-3 | 8.0 | 9 | 3 | 3 | 1 | 1 | 30 | 2 | 0 | 0 | 12 | 6 | SP, W |
| 2009-07-09 | WAS | @ HOU | L, 9-4 | 5.0 | 11 | 5 | 5 | 1 | 2 | 26 | 3 | 1 | 0 | 9 | 3 | SP, L |
| 2009-07-16 | WAS | vs. CHC | L, 6-2 | 6.2 | 7 | 3 | 2 | 1 | 2 | 28 | 2 | 0 | 1 | 8 | 7 | SP, L |
| 2009-07-21 | WAS | vs. NYM | W, 4-0 | 9.0 | 7 | 0 | 0 | 0 | 1 | 32 | 0 | 0 | 0 | 14 | 9 | SP, W, CG, SHO |
| 2009-07-26 | WAS | vs. SDP | W, 3-2 | 8.0 | 5 | 1 | 1 | 1 | 2 | 29 | 2 | 0 | 0 | 11 | 10 | SP |
| 2009-07-31 | WAS | @ PIT | L, 5-4 | 7.0 | 9 | 5 | 5 | 1 | 3 | 31 | 2 | 0 | 1 | 10 | 6 | SP, L |
| 2009-08-05 | WAS | vs. FLA | W, 5-4 | 6.0 | 8 | 2 | 2 | 2 | 6 | 27 | 2 | 0 | 1 | 8 | 3 | SP, W |
| 2009-08-11 | WAS | @ ATL | L, 8-1 | 4.2 | 6 | 6 | 5 | 4 | 1 | 22 | 2 | 0 | 0 | 6 | 4 | SP, L |
| 2009-08-16 | WAS | @ CIN | W, 5-4 | 5.2 | 7 | 4 | 4 | 3 | 2 | 28 | 1 | 0 | 1 | 4 | 9 | SP |
| 2009-08-22 | WAS | vs. MIL | L, 11-9 | 1.2 | 7 | 7 | 7 | 2 | 0 | 14 | 4 | 0 | 1 | 2 | 2 | SP |
| 2009-08-28 | WAS | @ STL | L, 3-2 | 8.0 | 4 | 2 | 2 | 2 | 2 | 29 | 1 | 0 | 1 | 15 | 5 | SP |
| 2009-09-02 | WAS | @ SDP | L, 7-0 | 5.0 | 6 | 5 | 5 | 4 | 3 | 25 | 2 | 0 | 0 | 9 | 2 | SP, L |
| 2009-09-08 | WAS | vs. PHI | L, 5-3 | 6.2 | 6 | 4 | 4 | 2 | 1 | 27 | 0 | 0 | 4 | 14 | 4 | SP, L |
| 2009-09-13 | WAS | @ FLA | W, 7-2 | 5.0 | 6 | 1 | 1 | 1 | 3 | 22 | 0 | 0 | 0 | 7 | 5 | SP, W |
| 2009-09-19 | WAS | @ NYM | L, 3-2 | 7.0 | 5 | 3 | 3 | 1 | 3 | 26 | 3 | 0 | 0 | 7 | 7 | SP, L |
| 2009-09-25 | WAS | vs. ATL | L, 4-1 | 7.0 | 6 | 2 | 0 | 3 | 6 | 31 | 2 | 0 | 0 | 7 | 7 | SP, L |
| 2009-09-30 | WAS | vs. NYM | W, 7-4 | 7.0 | 4 | 3 | 2 | 2 | 4 | 28 | 2 | 0 | 0 | 6 | 10 | SP |
| Total Games: 33 | ||||||||||||||||