John Lannan
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2010-04-05 | WAS | vs. PHI | L, 11-1 | 3.2 | 7 | 5 | 5 | 3 | 0 | 21 | 0 | 0 | 1 | 2 | 7 | SP, L |
| 2010-04-10 | WAS | @ NYM | W, 4-3 | 5.0 | 6 | 3 | 3 | 3 | 2 | 26 | 1 | 0 | 0 | 8 | 4 | SP, W |
| 2010-04-16 | WAS | vs. MIL | W, 5-3 | 7.0 | 7 | 2 | 2 | 3 | 5 | 31 | 1 | 0 | 1 | 14 | 2 | SP |
| 2010-04-21 | WAS | vs. COL | W, 6-4 | 6.0 | 11 | 4 | 4 | 1 | 2 | 29 | 1 | 0 | 1 | 7 | 7 | SP |
| 2010-04-26 | WAS | @ CHC | L, 4-3 | 6.0 | 5 | 3 | 3 | 5 | 1 | 25 | 2 | 2 | 0 | 10 | 4 | SP |
| 2010-05-02 | WAS | @ FLA | L, 9-3 | 5.0 | 9 | 6 | 6 | 3 | 2 | 27 | 4 | 0 | 1 | 5 | 6 | SP, L |
| 2010-05-13 | WAS | @ COL | W, 14-6 | 4.2 | 6 | 4 | 4 | 4 | 1 | 24 | 1 | 1 | 0 | 6 | 7 | SP |
| 2010-05-18 | WAS | @ STL | L, 3-2 | 6.0 | 5 | 2 | 2 | 1 | 2 | 23 | 0 | 0 | 1 | 8 | 6 | SP |
| 2010-05-23 | WAS | vs. BAL | W, 4-3 | 5.1 | 2 | 1 | 1 | 3 | 2 | 20 | 0 | 0 | 0 | 8 | 5 | SP |
| 2010-05-28 | WAS | @ SDP | W, 5-3 | 7.0 | 7 | 2 | 1 | 0 | 1 | 27 | 2 | 0 | 0 | 10 | 7 | SP, W |
| 2010-06-02 | WAS | @ HOU | L, 5-1 | 6.1 | 8 | 5 | 2 | 2 | 2 | 30 | 0 | 0 | 1 | 9 | 5 | SP, L |
| 2010-06-09 | WAS | vs. PIT | W, 7-5 | 4.2 | 10 | 5 | 4 | 3 | 2 | 27 | 1 | 0 | 0 | 3 | 9 | SP |
| 2010-06-15 | WAS | @ DET | L, 7-4 | 4.1 | 10 | 7 | 6 | 4 | 1 | 29 | 2 | 0 | 1 | 8 | 4 | SP, L |
| 2010-06-20 | WAS | vs. CHW | L, 6-3 | 4.0 | 11 | 5 | 5 | 0 | 1 | 22 | 1 | 0 | 0 | 7 | 2 | SP, L |
| 2010-08-01 | WAS | vs. PHI | L, 6-4 | 5.0 | 7 | 2 | 2 | 1 | 3 | 24 | 2 | 0 | 0 | 8 | 2 | SP |
| 2010-08-06 | WAS | @ LAD | W, 6-3 | 6.0 | 5 | 3 | 2 | 2 | 2 | 24 | 0 | 0 | 1 | 7 | 8 | SP, W |
| 2010-08-13 | WAS | vs. ARI | W, 4-2 | 7.0 | 4 | 2 | 2 | 1 | 5 | 25 | 0 | 1 | 0 | 8 | 5 | SP, W |
| 2010-08-19 | WAS | @ ATL | W, 6-2 | 5.1 | 7 | 2 | 2 | 1 | 5 | 23 | 2 | 0 | 0 | 8 | 2 | SP, W |
| 2010-08-24 | WAS | vs. CHC | L, 5-4 | 5.0 | 7 | 5 | 4 | 0 | 3 | 22 | 1 | 0 | 2 | 7 | 4 | SP, L |
| 2010-08-29 | WAS | vs. STL | W, 4-2 | 7.2 | 8 | 1 | 1 | 0 | 4 | 29 | 1 | 0 | 0 | 11 | 6 | SP, W |
| 2010-09-04 | WAS | @ PIT | W, 9-2 | 7.0 | 5 | 1 | 1 | 1 | 7 | 30 | 1 | 0 | 1 | 9 | 5 | SP, W |
| 2010-09-10 | WAS | vs. FLA | L, 3-1 | 6.2 | 7 | 3 | 3 | 3 | 6 | 29 | 1 | 0 | 1 | 5 | 8 | SP, L |
| 2010-09-15 | WAS | @ ATL | W, 4-2 | 6.0 | 8 | 2 | 2 | 3 | 6 | 26 | 4 | 0 | 0 | 5 | 4 | SP, W |
| 2010-09-21 | WAS | vs. HOU | W, 8-4 | 7.0 | 6 | 3 | 3 | 1 | 3 | 26 | 1 | 0 | 1 | 11 | 5 | SP |
| 2010-09-27 | WAS | vs. PHI | L, 8-0 | 5.2 | 7 | 4 | 4 | 1 | 3 | 24 | 2 | 0 | 1 | 7 | 5 | SP, L |
| Total Games: 25 | ||||||||||||||||