Masato Yoshii
| Date | Team | Opponent | Result | IP | H | R | ER | BB | SO | PA | 2B | 3B | HR | GO | FO | MISC |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1998-04-05 | NYM | vs. PIT | W, 7-0 | 7.0 | 3 | 0 | 0 | 1 | 7 | 25 | 1 | 0 | 0 | 4 | 9 | SP, W |
| 1998-04-11 | NYM | @ MIL | W, 2-1 | 6.0 | 5 | 1 | 0 | 3 | 4 | 24 | 1 | 0 | 0 | 6 | 6 | SP |
| 1998-04-18 | NYM | @ CIN | W, 5-4 | 5.0 | 8 | 4 | 4 | 1 | 3 | 23 | 1 | 0 | 2 | 4 | 6 | SP |
| 1998-04-25 | NYM | vs. CIN | L, 2-0 | 7.0 | 5 | 2 | 2 | 3 | 5 | 29 | 1 | 0 | 0 | 8 | 7 | SP, L |
| 1998-05-02 | NYM | vs. COL | L, 7-3 | 5.0 | 5 | 3 | 3 | 2 | 4 | 22 | 0 | 0 | 3 | 3 | 8 | SP |
| 1998-05-07 | NYM | vs. STL | W, 4-1 | 7.0 | 2 | 1 | 1 | 2 | 6 | 24 | 0 | 0 | 1 | 8 | 6 | SP, W |
| 1998-05-15 | NYM | @ SFG | L, 3-2 | 6.0 | 7 | 2 | 2 | 2 | 4 | 29 | 2 | 0 | 0 | 4 | 8 | SP |
| 1998-05-21 | NYM | vs. CIN | W, 6-1 | 9.0 | 9 | 1 | 1 | 3 | 9 | 36 | 1 | 0 | 1 | 6 | 9 | SP, W, CG |
| 1998-05-27 | NYM | @ FLA | W, 8-2 | 6.0 | 5 | 2 | 2 | 0 | 0 | 23 | 2 | 0 | 2 | 10 | 8 | SP, W |
| 1998-06-02 | NYM | @ PIT | L, 5-2 | 2.0 | 1 | 1 | 0 | 1 | 0 | 8 | 0 | 0 | 0 | 3 | 2 | SP |
| 1998-06-07 | NYM | @ BOS | L, 5-0 | 5.0 | 8 | 5 | 5 | 2 | 2 | 23 | 2 | 0 | 1 | 8 | 3 | SP, L |
| 1998-06-12 | NYM | @ FLA | L, 4-3 | 5.1 | 5 | 2 | 2 | 1 | 3 | 22 | 1 | 0 | 0 | 3 | 8 | SP |
| 1998-06-18 | NYM | @ MON | L, 7-6 | 5.1 | 7 | 7 | 7 | 3 | 1 | 25 | 1 | 0 | 2 | 5 | 9 | SP, L |
| 1998-06-23 | NYM | @ BAL | W, 6-3 | 3.1 | 6 | 3 | 3 | 2 | 1 | 19 | 2 | 0 | 0 | 3 | 5 | SP |
| 1998-06-28 | NYM | vs. NYY | W, 2-1 | 7.0 | 2 | 1 | 1 | 4 | 10 | 28 | 0 | 0 | 1 | 6 | 5 | SP |
| 1998-07-04 | NYM | @ ATL | L, 4-1 | 6.0 | 7 | 4 | 2 | 4 | 3 | 31 | 4 | 0 | 0 | 6 | 8 | SP, L |
| 1998-07-10 | NYM | vs. MON | L, 8-6 | 6.2 | 6 | 5 | 5 | 3 | 7 | 30 | 1 | 1 | 1 | 5 | 7 | SP |
| 1998-07-15 | NYM | vs. ATL | L, 12-1 | 3.2 | 9 | 7 | 7 | 0 | 1 | 20 | 2 | 0 | 2 | 4 | 4 | SP, L |
| 1998-07-20 | NYM | vs. PIT | L, 3-1 | 7.0 | 6 | 2 | 2 | 1 | 2 | 27 | 1 | 0 | 1 | 8 | 10 | SP, L |
| 1998-07-25 | NYM | @ CHC | L, 3-2 | 7.1 | 3 | 2 | 2 | 2 | 4 | 26 | 1 | 0 | 1 | 9 | 8 | SP |
| 1998-07-31 | NYM | vs. LAD | L, 4-3 | 7.0 | 6 | 1 | 1 | 1 | 8 | 26 | 3 | 0 | 0 | 8 | 3 | SP |
| 1998-08-06 | NYM | vs. SFG | W, 9-8 | 7.0 | 7 | 4 | 4 | 2 | 3 | 30 | 2 | 0 | 0 | 8 | 9 | SP |
| 1998-08-12 | NYM | @ STL | L, 5-4 | 6.0 | 6 | 3 | 3 | 2 | 5 | 26 | 2 | 0 | 0 | 7 | 6 | SP |
| 1998-08-19 | NYM | vs. COL | W, 2-1 | 7.2 | 9 | 1 | 1 | 1 | 6 | 32 | 2 | 0 | 1 | 9 | 7 | SP, W |
| 1998-08-24 | NYM | vs. ARI | L, 9-5 | 6.0 | 8 | 4 | 4 | 2 | 1 | 26 | 1 | 1 | 1 | 5 | 9 | SP, L |
| 1998-08-30 | NYM | @ LAD | L, 4-2 | 6.0 | 7 | 4 | 4 | 0 | 5 | 25 | 2 | 0 | 0 | 3 | 9 | SP, L |
| 1998-09-07 | NYM | vs. ATL | W, 8-7 | 3.0 | 1 | 0 | 0 | 2 | 2 | 12 | 0 | 0 | 0 | 2 | 4 | SP |
| 1998-09-14 | NYM | @ HOU | W, 7-4 | 6.0 | 4 | 4 | 4 | 1 | 3 | 23 | 1 | 0 | 1 | 7 | 8 | SP |
| 1998-09-19 | NYM | vs. FLA | W, 4-3 | 6.1 | 9 | 3 | 3 | 2 | 8 | 30 | 3 | 0 | 1 | 6 | 4 | SP, W |
| Total Games: 29 | ||||||||||||||||