Taijuan Walker was touched up for four runs over just 5 2/3 innings in Sunday's loss to the Blue Jays.
Taijuan Walker yielded four runs over 3 2/3 innings but got a no-decision in Tuesday's 9-4 loss to the Orioles.
Taijuan Walker held the Padres to two runs in six innings but took the loss Wednesday.
The Mariners have flipped Taijuan Walker and Roenis Elias in the starting rotation.
Taijuan Walker pitched five innings and allowed three runs Friday in a no-decision against the A's.
Taijuan Walker was knocked around by the Astros on Saturday, surrendering eight runs (seven earned)--including three home runs--in just three innings.
Taijuan Walker was dominant against the Rangers in a win on Monday, allowing just an unearned run in seven innings.
Taijuan Walker held the Astros to one run in 5 1/3 innings but picked up a no-decision as the Mariners lost on Tuesday.
Taijuan Walker was detonated again on Wednesday, this time for five runs on six hits and four walks across four innings in a loss to the Dodgers.
Taijuan Walker was lit up for nine runs and nine hits in 3 1/3 innings by the A's on Friday.
Taijuan Walker gave up one run in two innings of work in his final spring tune-up against the Rockies on Saturday.
Taijuan Walker was again terrific, limiting the Angels to one run in seven innings as the Mariners won 5-3 on Monday.
Taijuan Walker has won the fifth spot in the Mariners' rotation.
Taijuan Walker is next scheduled to start on Monday, while Roenis Elias is not currently penciled in for any more Cactus League starts.