Kirby (3-3) was hit with the loss against the Twins on Wednesday, allowing four runs on four hits and one walk over five innings. He struck out four.
Kirby (knee) is listed as the Mariners' probable starting pitcher for Wednesday's game against the Twins at Target Field.
Kirby (3-2) earned the win over the Diamondbacks on Saturday, hurling seven shutout innings while allowing two hits and two walks. He struck out 12.
Kirby pitched five scoreless innings, allowing five hits and a walk while striking out seven in Seattle's 2-1 extra-inning loss to the Rockies in Game 1 of Sunday's doubleheader. He did not factor into the decision.
Kirby (1-1) took the loss Wednesday, allowing eight runs on 10 hits over 3.2 innings against the Guardians. He struck out two.
Kirby has an 8.31 ERA and 1.73 WHIP over 8.2 innings across three Cactus League starts.
Kirby (10-9) took the loss Sunday, allowing four runs (three earned) on six hits over three innings against the Mets. He struck out three.
Mariners manager Scott Servais said Wednesday that Kirby (illness) will slot back into the rotation during this weekend's series with the Mets, Ryan Divish of The Seattle Times reports.
Kirby was scratched from his scheduled start Tuesday against Oakland due to an illness, Daniel Kramer of MLB.com reports.
Kirby did not factor into the decision Wednesday, allowing three runs on eight hits over 5.2 innings against the White Sox. He struck out nine.