2025 Stats
W-L
0-0
ERA
0.00
WHIP
0.00
K
0
SV
0
2026 Projections
RANKS
Rest of Season
Signed a two-year, $12 million contract with the White Sox in December of 2025.
Gets $12 million from White Sox
The White Sox signed Kay to a two-year, $12 million contract Wednesday, Jeff Passan of ESPN.com reports.
Analysis
Kay is returning to the majors after a two-year stint with the Yokohama Bay Stars of Nippon Professional Baseball, where he held a 2.53 ERA, 1.15 WHIP and 249:94 K:BB over 291.2 innings. The left-hander set a new franchise record with a 1.74 ERA in 2025 and also led NPB with a 57.8 percent groundball rate. Kay posted a 5.59 ERA, 1.61 WHIP and 88:47 K:BB across 85.1 frames at the big-league level from 2019-2023. He'll slide into Chicago's rotation in 2026.
Kay is returning to the majors after a two-year stint with the Yokohama Bay Stars of Nippon Professional Baseball, where he held a 2.53 ERA, 1.15 WHIP and 249:94 K:BB over 291.2 innings. The left-hander set a new franchise record with a 1.74 ERA in 2025 and also led NPB with a 57.8 percent groundball rate. Kay posted a 5.59 ERA, 1.61 WHIP and 88:47 K:BB across 85.1 frames at the big-league level from 2019-2023. He'll slide into Chicago's rotation in 2026.
Pitching Stats
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2023 MLB Game Log
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2021
2020
2019
Minor League Game Log
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Left/Right Pitching Splits
Since 2023
-45%
BAA vs LHP
2025
No Stats
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .158 | 5 | 3 | 3 | 1 | |||
| Since 2023vs Right | .286 | 6 | 6 | 10 | 1 | |||
| 2025vs Left | 0 | 0 | 0 | 0 | 0 | |||
| 2025vs Right | 0 | 0 | 0 | 0 | 0 | |||
| 2024vs Left | 0 | 0 | 0 | 0 | 0 | |||
| 2024vs Right | 0 | 0 | 0 | 0 | 0 | |||
| 2023vs Left | .158 | 5 | 3 | 3 | 1 | |||
| 2023vs Right | .286 | 6 | 6 | 10 | 1 | |||
| More Splits→ | View More Split Stats | |||||||
Home/Away Pitching Splits
Since 2023
-25%
ERA on Road
2025
No Stats
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 6.55 | 1.55 | 11.0 | 6.5 | 6.5 | ||||
| Since 2023Away | 4.91 | 1.36 | 3.2 | 7.4 | 2.5 | ||||
| 2025Home | 0 | 0 | 0 | 0 | 0 | ||||
| 2025Away | 0 | 0 | 0 | 0 | 0 | ||||
| 2024Home | 0 | 0 | 0 | 0 | 0 | ||||
| 2024Away | 0 | 0 | 0 | 0 | 0 | ||||
| 2023Home | 6.55 | 1.55 | 11.0 | 6.5 | 6.5 | ||||
| 2023Away | 4.91 | 1.36 | 3.2 | 7.4 | 2.5 | ||||
| More Splits→ | View More Split Stats | ||||||||
Prospect Rankings History
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Past Fantasy Outlooks
2021
2020
A starter throughout his minor-league career, Kay broke summer camp on the Blue Jays' 30-man roster. He was expected to play a swingman role but ended up pitching exclusively out of the bullpen, making 13 appearances in relief before being optioned to the team's alternate training site in mid-September. Kay was never comfortable as a reliever, walking 14 while allowing three homers in 21 innings, though he did fan 22 batters. Toronto has opened its window to win and taken measures to strengthen the rotation, so Kay's future may be in a similar bullpen role, which doesn't lend itself to fantasy. To get back in the rotation mix, he needs to work on command and control, but with average stuff, his ceiling is capped as an innings eater. Kay is probably better off focusing on a couple offerings to maximize his effectiveness as a reliever.
More Fantasy News
Aiming to return to MLB
Kay will seek a major-league contract this offseason after spending the last two years pitching for the Yokohama Bay Stars of Nippon Professional Baseball, Jon Heyman of the New York Post reports.
Analysis
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Headed to Japan
Kay signed with the Yokohama DeNA BayStars of Nippon Professional Baseball on Tuesday, Robert Murray of FanSided.com reports.
Analysis
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Cast off 40-man roster
Oakland outrighted Kay to Triple-A Las Vegas on Monday.
Analysis
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Claimed by Oakland
Oakland claimed Kay off waivers from the Mets on Tuesday.
Analysis
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Cast off 40-man roster
The Mets placed Kay on outright waivers Friday, Anthony DiComo of MLB.com reports.
Analysis
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Latest Fantasy Rumors
Rotation opportunity on tap?
Kay is a candidate to slide into the Blue Jays' starting rotation as a result of Chase Anderson's placement on the injured list due to an oblique injury.
Analysis
Kay saw major-league action last season, making three appearances, including two starts, and posting a 1-0 record, 5.79 ERA and 1.43 WHIP over 14 innings. The young southpaw had an uneven minor-league career, but his 2.50 ERA over 36 innings at Triple-A Buffalo prior to last year's promotion supports the notion he could hold down the fort for a handful of outings before Anderson returns. In addition to Kay, manager Charlie Montoyo could opt to turn to Ryan Borucki, who's produced mixed results over his first pair of big-league stints the last two seasons.
Kay saw major-league action last season, making three appearances, including two starts, and posting a 1-0 record, 5.79 ERA and 1.43 WHIP over 14 innings. The young southpaw had an uneven minor-league career, but his 2.50 ERA over 36 innings at Triple-A Buffalo prior to last year's promotion supports the notion he could hold down the fort for a handful of outings before Anderson returns. In addition to Kay, manager Charlie Montoyo could opt to turn to Ryan Borucki, who's produced mixed results over his first pair of big-league stints the last two seasons.