Interpreted as:
Reese Olson career w/ regular-season l versus all MLB teams| OPP | L | W | L% | G | 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 | H/9 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  White Sox | 2 | 3 | .400 | 5 | .600 | 5 | 2.32 | 20 | 0 | 0 | 0 | 31.0 | 19 | 8 | 8 | 1 | 5 | 1 | 0 | 0 | 112 | 0 | 5.81 | 1.45 | 4.00 | 0.29 | 17.9 | 4.5 | 0.77 | .212 | 2.32 | 5.52 |
| 2 |  Phillies | 0 | 0 | 1 | 0 | 1.80 | 3 | 0 | 0 | 0 | 5.0 | 3 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 19 | 0 | 5.40 | 1.80 | 3.00 | 0.00 | 15.8 | 5.3 | 0.80 | .200 | 1.80 | 5.40 | ||
| 3 |  Braves | 1 | 0 | 1.000 | 2 | .000 | 2 | 5.79 | 10 | 0 | 0 | 0 | 9.1 | 9 | 6 | 7 | 1 | 2 | 0 | 0 | 0 | 40 | 1 | 9.64 | 1.93 | 5.00 | 0.96 | 25.0 | 5.0 | 1.18 | .296 | 6.75 | 8.68 |
| 4 |  Royals | 2 | 1 | .667 | 6 | .333 | 6 | 3.14 | 33 | 0 | 0 | 0 | 28.2 | 27 | 10 | 13 | 4 | 10 | 1 | 0 | 0 | 122 | 1 | 10.36 | 3.14 | 3.30 | 1.26 | 27.0 | 8.2 | 1.29 | .311 | 4.08 | 8.48 |
| 5 |  Twins | 1 | 2 | .333 | 5 | .667 | 5 | 4.24 | 27 | 0 | 0 | 0 | 23.1 | 25 | 11 | 13 | 1 | 10 | 2 | 0 | 0 | 105 | 2 | 10.41 | 3.86 | 2.70 | 0.39 | 25.7 | 9.5 | 1.50 | .369 | 5.01 | 9.64 |
| 6 |  Rangers | 2 | 0 | 1.000 | 4 | .000 | 4 | 2.65 | 21 | 0 | 0 | 0 | 17.0 | 18 | 5 | 5 | 1 | 4 | 1 | 0 | 0 | 73 | 0 | 11.12 | 2.12 | 5.25 | 0.53 | 28.8 | 5.5 | 1.29 | .370 | 2.65 | 9.53 |
| 7 |  Athletics | 0 | 0 | 1 | 0 | 0.00 | 5 | 0 | 0 | 0 | 5.0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 17 | 0 | 9.00 | 1.80 | 5.00 | 0.00 | 29.4 | 5.9 | 0.40 | .091 | 0.00 | 1.80 | ||
| 8 |  Blue Jays | 1 | 1 | .500 | 5 | .500 | 4 | 2.45 | 14 | 0 | 0 | 0 | 22.0 | 12 | 6 | 7 | 2 | 8 | 1 | 0 | 1 | 85 | 0 | 5.73 | 3.27 | 1.75 | 0.82 | 16.5 | 9.4 | 0.91 | .167 | 2.86 | 4.91 |
| 9 |  Mariners | 1 | 0 | 1.000 | 1 | .000 | 1 | 3.38 | 5 | 0 | 0 | 0 | 5.1 | 6 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 21 | 0 | 8.44 | 0.00 | 1.69 | 23.8 | 0.0 | 1.13 | .333 | 3.38 | 10.13 | |
| 10 |  Padres | 1 | 1 | .500 | 2 | .500 | 2 | 3.65 | 12 | 0 | 0 | 0 | 12.1 | 9 | 5 | 5 | 2 | 3 | 0 | 0 | 0 | 49 | 1 | 8.76 | 2.19 | 4.00 | 1.46 | 24.5 | 6.1 | 0.97 | .219 | 3.65 | 6.57 |
| 11 |  Marlins | 0 | 0 | 2 | 2 | 2.57 | 8 | 0 | 0 | 0 | 14.0 | 11 | 4 | 4 | 1 | 0 | 0 | 0 | 0 | 52 | 0 | 5.14 | 0.00 | 0.64 | 15.4 | 0.0 | 0.79 | .233 | 2.57 | 7.07 | |||
| 12 |  Rays | 1 | 0 | 1.000 | 3 | .000 | 3 | 5.14 | 7 | 0 | 0 | 0 | 14.0 | 15 | 8 | 8 | 1 | 5 | 0 | 0 | 0 | 60 | 1 | 4.50 | 3.21 | 1.40 | 0.64 | 11.7 | 8.3 | 1.43 | .298 | 5.14 | 9.64 |
| 13 |  Cubs | 0 | 0 | 1 | 1 | 11.57 | 7 | 0 | 0 | 0 | 4.2 | 4 | 6 | 6 | 2 | 3 | 0 | 0 | 0 | 22 | 0 | 13.50 | 5.79 | 2.33 | 3.86 | 31.8 | 13.6 | 1.50 | .200 | 11.57 | 7.71 | ||
| 14 |  Yankees | 1 | 0 | 1.000 | 2 | .000 | 2 | 0.96 | 15 | 0 | 0 | 0 | 9.1 | 5 | 1 | 1 | 0 | 6 | 0 | 0 | 0 | 39 | 1 | 14.46 | 5.79 | 2.50 | 0.00 | 38.5 | 15.4 | 1.18 | .278 | 0.96 | 4.82 |
| 15 |  Reds | 0 | 2 | .000 | 2 | 1.000 | 2 | 1.54 | 15 | 0 | 0 | 0 | 11.2 | 5 | 2 | 3 | 2 | 6 | 0 | 0 | 0 | 43 | 0 | 11.57 | 4.63 | 2.50 | 1.54 | 34.9 | 14.0 | 0.94 | .150 | 2.31 | 3.86 |
| 16 |  Dodgers | 1 | 1 | .500 | 2 | .500 | 2 | 4.22 | 10 | 0 | 0 | 0 | 10.2 | 6 | 5 | 5 | 2 | 4 | 0 | 0 | 1 | 42 | 0 | 8.44 | 3.38 | 2.50 | 1.69 | 23.8 | 9.5 | 0.94 | .154 | 4.22 | 5.06 |
| 17 |  Mets | 0 | 0 | 1 | 1 | 0.00 | 3 | 0 | 0 | 0 | 5.2 | 3 | 0 | 0 | 0 | 2 | 1 | 0 | 0 | 22 | 0 | 4.76 | 3.18 | 1.50 | 0.00 | 13.6 | 9.1 | 0.88 | .188 | 0.00 | 4.76 | ||
| 18 |  Pirates | 1 | 0 | 1.000 | 1 | .000 | 1 | 12.46 | 3 | 0 | 0 | 0 | 4.1 | 9 | 6 | 6 | 0 | 3 | 1 | 0 | 0 | 26 | 1 | 6.23 | 6.23 | 1.00 | 0.00 | 11.5 | 11.5 | 2.77 | .474 | 12.46 | 18.69 |
| 19 |  Guardians | 0 | 1 | .000 | 3 | 1.000 | 3 | 2.76 | 10 | 0 | 0 | 0 | 16.1 | 13 | 5 | 6 | 2 | 4 | 0 | 0 | 0 | 64 | 0 | 5.51 | 2.20 | 2.50 | 1.10 | 15.6 | 6.3 | 1.04 | .229 | 3.31 | 7.16 |
| 20 |  Red Sox | 1 | 0 | 1.000 | 1 | .000 | 1 | 8.44 | 5 | 0 | 0 | 0 | 5.1 | 6 | 5 | 5 | 2 | 1 | 0 | 0 | 0 | 23 | 0 | 8.44 | 1.69 | 5.00 | 3.38 | 21.7 | 4.3 | 1.31 | .267 | 8.44 | 10.13 |
| 21 |  Brewers | 1 | 0 | 1.000 | 1 | .000 | 1 | 18.00 | 6 | 0 | 0 | 0 | 4.0 | 12 | 8 | 8 | 0 | 1 | 0 | 0 | 0 | 24 | 0 | 13.50 | 2.25 | 6.00 | 0.00 | 25.0 | 4.2 | 3.25 | .706 | 18.00 | 27.00 |
| 22 |  Nationals | 1 | 0 | 1.000 | 1 | .000 | 1 | 6.75 | 3 | 0 | 0 | 0 | 5.1 | 10 | 4 | 5 | 1 | 2 | 0 | 0 | 0 | 27 | 0 | 5.06 | 3.38 | 1.50 | 1.69 | 11.1 | 7.4 | 2.25 | .429 | 8.44 | 16.88 |
| 23 |  Angels | 0 | 1 | .000 | 2 | 1.000 | 2 | 1.54 | 17 | 0 | 0 | 0 | 11.2 | 8 | 2 | 2 | 0 | 6 | 1 | 0 | 0 | 50 | 2 | 13.11 | 4.63 | 2.83 | 0.00 | 34.0 | 12.0 | 1.20 | .308 | 1.54 | 6.17 |
| 24 |  Orioles | 0 | 0 | 1 | 1 | 3.00 | 3 | 0 | 0 | 0 | 3.0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 0 | 12 | 0 | 9.00 | 3.00 | 3.00 | 0.00 | 25.0 | 8.3 | 0.67 | .143 | 3.00 | 3.00 | ||
| 25 |  Astros | 1 | 0 | 1.000 | 1 | .000 | 1 | 4.76 | 7 | 0 | 0 | 0 | 5.2 | 4 | 3 | 3 | 0 | 3 | 0 | 0 | 0 | 23 | 0 | 11.12 | 4.76 | 2.33 | 0.00 | 30.4 | 13.0 | 1.24 | .308 | 4.76 | 6.35 |
StatMuse has game-level data for pitcher losses going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
Tigers 
COL 
