Masato Yoshii played 5 seasons for the Expos, Mets and Rockies. He had 32 wins, 47 losses, an ERA of 4.62 and 447 strikeouts.
| NAME | SEASON | TM | G | W | L | W% | GS | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | ERA- | FIP | FIP- | H/9 | PRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | M. Yoshii | 1998 |  NYM | 29 | 6 | 8 | .429 | 29 | 3.93 | 117 | 1 | 0 | 0 | 171.2 | 166 | 75 | 79 | 22 | 53 | 6 | 0 | 5 | 724 | 5 | 6.13 | 2.78 | 2.21 | 1.15 | 16.2 | 7.3 | 1.28 | .274 | 4.14 | 97 | 4.47 | 107 | 8.70 | -6 |
| 2 | | M. Yoshii | 1999 | NYM | 31 | 12 | 8 | .600 | 29 | 4.40 | 105 | 1 | 0 | 0 | 174.0 | 168 | 85 | 86 | 25 | 58 | 6 | 1 | 3 | 723 | 1 | 5.43 | 3.00 | 1.81 | 1.29 | 14.5 | 8.0 | 1.30 | .270 | 4.45 | 100 | 4.89 | 109 | 8.69 | -8.4 |
| 3 | | M. Yoshii | 2000 |  COL | 29 | 6 | 15 | .286 | 29 | 5.86 | 88 | 0 | 0 | 0 | 167.1 | 201 | 109 | 112 | 32 | 53 | 2 | 0 | 6 | 726 | 2 | 4.73 | 2.85 | 1.66 | 1.72 | 12.1 | 7.3 | 1.52 | .307 | 6.02 | 103 | 5.55 | 106 | 10.81 | -4.6 |
| 4 | | M. Yoshii | 2001 |  MON | 42 | 4 | 7 | .364 | 11 | 4.78 | 63 | 0 | 0 | 0 | 113.0 | 127 | 60 | 65 | 18 | 26 | 5 | 4 | 2 | 493 | 4 | 5.02 | 2.07 | 2.42 | 1.43 | 12.8 | 5.3 | 1.35 | .286 | 5.18 | 104 | 4.82 | 107 | 10.12 | -4 |
| 5 | | M. Yoshii | 2002 | MON | 31 | 4 | 9 | .308 | 20 | 4.11 | 74 | 1 | 0 | 0 | 131.1 | 143 | 60 | 66 | 15 | 32 | 4 | 4 | 2 | 553 | 5 | 5.07 | 2.19 | 2.31 | 1.03 | 13.4 | 5.8 | 1.33 | .299 | 4.52 | 97 | 4.13 | 97 | 9.80 | 2.1 |
| Total | 162 | 32 | 47 | .405 | 118 | 4.62 | 447 | 3 | 0 | 0 | 757.1 | 805 | 389 | 408 | 112 | 222 | 23 | 9 | 18 | 3,219 | 17 | 5.31 | 2.64 | 2.01 | 1.33 | 13.9 | 6.9 | 1.36 | .287 | 4.85 | 100 | 4.80 | 106 | 9.57 | -20.9 |
Phillies 
Marlins 
Braves 
Nationals 
MIL 
NYY 
Cubs 
Dodgers 
Padres 
Blue Jays 
Tigers 
Guardians 
Astros 
Mariners 
PIT 
LAA 
AZ 
ATH 
TBR 
STL 
