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Casey Mize or Stephen Kolek

Who Should I Start? - Week 14 • Start New
Casey Mize

Casey Mize

SPDetroit Tigers DET
Stephen Kolek

Stephen Kolek

SPKansas City Royals KC
OR
🔓 EXPERT ANALYSIS

Owners starting Mize over Kolek

 
 
 
 
START BOTH START BENCH BOTH BN

Includes Detailed Projections

Outlook Casey Mize

Casey Mize Set to Return from Injured List Wednesday in Houston

Mize is primed to return from the injured list this Wednesday against the Astros after a rainout over the weekend delayed his activation. Prior to sidelined with a right adductor strain, he was in an elite groove, posting a stellar 1.11 ERA and 0.56 WHIP with 14 strikeouts over his last 16.2 innings. He rejoins a fourth-place Tigers rotation looking to build momentum and jumpstart their season.

While Mize's 2026 surface numbers of a 2.36 ERA and 1.00 WHIP look like a massive breakout, our models expect some regression to a 4.11 ERA and 1.27 WHIP over 151.0 projected innings. However, his improved 4.08 strikeout-to-walk ratio is a substantial leap over his career mark of 3.25, suggesting his growth into a reliable mid-rotation starter is legitimate.

Mize has a single start scheduled this week on Wednesday on the road against the Astros and opposing starter Peter Lambert, who carries a 3.47 ERA. Our model projects a solid 1.98 ERA and 0.81 WHIP over 5.2 innings for Mize in his return, though fantasy managers should expect a somewhat limited pitch count. Verdict: Start.

Updated 11 hrs ago

Latest News Casey Mize
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🔓 EXPERT ANALYSIS

Owners starting Kolek over Mize

 
 
 
 
START BOTH START BENCH BOTH BN

Includes Detailed Projections

Outlook Stephen Kolek

Stephen Kolek is shining amid rotation injuries, making him a viable deep-league option.

Stephen Kolek has stepped up as a crucial mid-rotation starter for the fifth-place Royals (29-43), who are battling significant rotation injuries with Seth Lugo and Cole Ragans on the shelf. Kolek has been stellar over his last two outings, posting a 0.74 ERA and earning consecutive wins to solidify his place in the rotation.

Although his current 2.73 ERA is highly impressive, our models expect some regression toward his projected 4.28 ERA and 1.36 WHIP over the rest of the season. Still, his pristine control and a career-best 1.05 WHIP suggest he will remain a viable option rather than a total fluke.

This week, Kolek draws a single home matchup on Friday against a tough Cardinals lineup and starter Michael McGreevy, who holds a strong 2.99 ERA. Our weekly projection expects 6.2 innings of 2.16 ERA ball, making him a highly reliable option for deep-league managers. Verdict: Start.

Updated 11 hrs ago

Latest News Stephen Kolek
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Performance Casey Mize
Fantasy Chart Loading...

ERA W-L HLD SV SO WLK WHIP GP
nan-nan0
Season stats based on the past 7 days

ERA W-L HLD SV SO WLK WHIP GP
nan-nan0
Season stats based on the past 14 days
Performance Stephen Kolek
Fantasy Chart Loading...

ERA W-L HLD SV SO WLK WHIP GP
0.741-000721.242
Season stats based on the past 7 days

ERA W-L HLD SV SO WLK WHIP GP
1.411-0001541.203
Season stats based on the past 14 days
Next Up Own/Start Comparison
OWN/START Casey Mize
OWN
74%
+9.99 compared to last week
START
40%
+35.52 compared to last week
OWN/START Stephen Kolek
OWN
56%
+20.04 compared to last week
START
48%
+38.97 compared to last week
Next Up Consensus Rankings
Expert Consensus Casey Mize
71st
Average Ranking of Fantasy Experts
Expert Consensus Stephen Kolek
116th
Average Ranking of Fantasy Experts
Next Up Player Breakdowns
Breakdown Casey Mize

    Overview

  • Experts rank this player at 72nd among SP's. Based on his stats from the past 60 days, he is currently ranked 115th.
  • The current leader among SP's is Jacob Misiorowski
  • He is in a heck of a slump. If he is star player then he should rebound.
  • In the past two weeks he has had an awful lot of time off and he's listed on the injury report. He may have some nagging injuries with his Adductor (Since May 28, 2026). Stay clear of him if its going to stick around, otherwise now is the time to get a guy at a bargain price since he is hurt. Check out his player news.
  • Trending Pitching Stats

  • WHIP is among the best in the league currently ranked 4th with 0.75
  • ERA is among the best in the league currently ranked 3rd with 1.48
  • His average points in the past two weeks have dipped quite a bit at 5.9.
  • At this point in the season his numbers compared to last years: W: -4, L: +1, WHIP: -0.354, ERA: -0.766, K's: -6, Walks: -6
Breakdown Stephen Kolek

    Overview

  • Experts rank this player at 117th among SP's. Based on his stats from the past 60 days, he is currently ranked 43rd.
  • The current leader among SP's is Jacob Misiorowski
  • Super human effort in the past 30 days. If he can keep it up, then keep him. . otherwise think trade.
  • Trending Pitching Stats

  • Top 25 in WHIP and is currently ranked 21st with 1.05
  • Top 25 in ERA and is currently ranked 22nd with 2.73
  • Top 75 in wins and is currently ranked 55th with 4
  • His average points in the past two weeks have remained fairly consistant and rose slightly by 0.3 PPG.
  • At this point in the season his numbers compared to last years: W: +1, L: -1, WHIP: -0.325, ERA: -0.934, K's: EVEN, Walks: -8
Next Up Health Check
Injury Casey Mize

ADDUCTOR - Since May 28, 2026

Mize is expected to be activated from the 15-day injured list and make the start for the Tigers.
Injury Stephen Kolek

No Injury Reported

Next Up Matchup Comparison
Matchups Casey Mize
DateOpponentResult
Jun 15@HOUKai-Wei Teng
Jun 16@HOUHunter Brown
Jun 17@HOUPeter Lambert
Jun 19VS CHWErick Fedde
Jun 20VS CHW
Jun 21VS CHW
ERA W-L HLD SV SO WLK WHIP GP
nan-nan0
Season stats based on this weeks opponents
Matchups Stephen Kolek
DateOpponentResult
Jun 15@WASAndrew Alvarez
Jun 16@WASFoster Griffin
Jun 17@WASZack Littell
Jun 18VS STLMatthew Liberatore
Jun 19VS STLMichael McGreevy
Jun 21VS STLDustin May
ERA W-L HLD SV SO WLK WHIP GP
0.001-000310.821
Season stats based on this weeks opponents
Next Up Ratings Comparison
Rating Casey Mize
9.18
FantasySP Player Rating
Rating Stephen Kolek
10.89
FantasySP Player Rating
Next Up Career Comparison
Career Casey Mize
YEAR TM APP INN PC K WLK SV W-L ERA WHIP K/9 PTS
2020 DET 7 28.1 543 26 13 0 0-3 6.99 1.48 8.3 31
2021 DET 29 148.1 2303 115 40 0 7-9 3.7 1.13 7 291
2022 DET 2 10.0 169 4 2 0 0-1 5.4 1.5 3.6 6
2024 DET 22 100.0 1789 78 29 0 2-6 4.68 1.51 7 150
2025 DET 30 150.1 2469 146 40 0 14-6 3.95 1.3 8.7 359
2026 DET 9 47.2 697 49 12 0 2-3 2.27 0.97 9.3 119
ON PACE 20 108 1590 111 27 0 4-6 2.27 0.97 9.3 272
3-YEAR AVG 17 83 1419 75 23 0 5-4 4.21 1.39 8.1 170
Career 99 480.0 7970 418 136 0 0-0 4.11 1.29 7.8
Career Stephen Kolek
YEAR TM APP INN PC K WLK SV W-L ERA WHIP K/9 PTS
2024 SD 42 42.0 797 39 12 0 3-0 5.79 1.69 8.4 85
2025 SD 19 110.1 1689 77 31 0 5-7 3.59 1.17 6.3 216
2026 KC 8 50.1 737 34 10 0 4-1 2.68 1.03 6.1 129
ON PACE 18 113 1658 76 22 0 9-2 2.68 1.03 6.1 289
3-YEAR AVG 31 75 1243 58 22 0 4-4 4.32 1.35 7 150
Career 69 200.1 3223 150 53 0 0-0 3.86 1.26 6.7
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Week 1
ARI @LAC
ATL @PIT
BAL @IND
BUF @HOU
CAR vs CHI
CIN vs TB
CLE @JAC
DAL @NYG
DEN @KC
DET vs NO
GB @MIN
LAR vs SF
LV vs MIA
NE @SEA
NYJ @TEN
PHI vs WAS
Matchup Time Pitchers
ARI vs LAA 09:40 EDT EST Ryne Nelson
Walbert Urena
ATH vs PIT 09:40 EDT EST J.T. Ginn
Jared Jones
CHC vs COL 08:05 EDT EST Shota Imanaga
Michael Lorenzen
CIN vs NYM 07:10 EDT EST Chase Burns
Tobias Myers
DET @HOU 08:10 EDT EST Troy Melton
Kai-Wei Teng
KC @WAS 06:45 EDT EST Mitch Spence
Andrew Alvarez
LAD vs TB 10:10 EDT EST Eric Lauer
Nick Martinez
MIA @PHI 06:40 EDT EST Ryan Gusto
Zack Wheeler
MIN @TEX 08:05 EDT EST
MacKenzie Gore
SD @STL 07:45 EDT EST Lucas Giolito
Dustin May
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