1990 Toronto Blue Jays season Game log May

| Date_ | Opponent | Score | Loss | Attendance | Record |
|---|---|---|---|---|---|
| May 1 | @ Indians | 4 - 3 | Candiotti (3-1) | 5111 | 13-9 |
| May 2 | @ Indians | 3 - 0 | Cerutti (1-4) | 8801 | 13-10 |
| May 4 | Tigers | 3 - 1 | Flanagan (2-2) | 49146 | 13-11 |
| May 5 | Tigers | 5 - 1 | Robinson (1-3) | 49219 | 14-11 |
| May 6 | Tigers | 11 - 7 | Dubois (0-1) | 49206 | 15-11 |
| May 7 | White Sox | 6 - 1 | McDowell (1-2) | 41384 | 16-11 |
| May 8 | White Sox | 4 - 1 | Cerutti (1-5) | 41101 | 16-12 |
| May 9 | White Sox | 4 - 3 | Edwards (0-1) | 43128 | 17-12 |
| May 10 | @ Tigers | 10 - 5 | Stottlemyre (4-3) | 11296 | 17-13 |