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Stephen Kolek or Kumar Rocker

Who Should I Start? - Week 12 • Start New
Stephen Kolek

Stephen Kolek

SPKansas City Royals KC
Kumar Rocker

Kumar Rocker

SPTexas Rangers TEX
OR
🔓 EXPERT ANALYSIS

Owners starting Kolek over Rocker

 
 
 
 
START BOTH START BENCH BOTH BN

Includes Detailed Projections

Outlook Stephen Kolek

Kolek looks to bounce back in a highly favorable road matchup against Cincinnati

Stephen Kolek has experienced a roller-coaster stretch, highlighted by a brilliant 108-pitch complete-game shutout followed by a rough outing where he allowed four earned runs. He currently slots in as the number five starter for the fourth-place Royals, who are mired in a six-game losing streak. With fellow starting pitchers Cole Ragans and Kris Bubic currently sidelined on the injured list, Kolek's role in the rotation remains highly secure.

While Kolek's 3.56 ERA and 0.96 WHIP over his last five starts look spectacular, a deeper dive suggests regression is on the horizon. His low strikeout rate of 5.64 K/9 indicates a heavy reliance on contact, which makes him highly susceptible to defensive lapses. Our models project him to finish the year with a more modest 4.28 ERA and 1.36 WHIP, meaning fantasy managers should treat his recent run as a peak rather than a new baseline.

Kolek is scheduled for a single start this week on Wednesday on the road against Cincinnati. He draws an extremely favorable matchup against Chris Paddack, who has struggled to a 6.90 ERA and a 1.71 WHIP this season. Backed by our weekly projection of a 3.14 ERA over 6.2 innings, Kolek is a high-quality option for managers seeking ratio help and a potential win. Verdict: Stream.

Updated 3 days ago

Latest News Stephen Kolek
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🔓 EXPERT ANALYSIS

Owners starting Rocker over Kolek

 
 
 
 
START BOTH START BENCH BOTH BN

Includes Detailed Projections

Outlook Kumar Rocker

High-upside former top draft pick looks to cement his role in the Texas rotation

Kumar Rocker enters the season with plenty of intrigue as he secures a solid mid-rotation slot in the Texas Rangers starting rotation. At 26 years old, the former first-round pick has battled durability concerns throughout his professional career but possesses the raw, electric stuff necessary to dominate big-league hitters. If he can maintain his health and stay on the active roster, he will have every opportunity to build up his workload and pitch in front of a competitive Texas lineup.

From a categorical standpoint, our models project Rocker to toss 111.0 innings with 95 strikeouts, translating to a high strikeout upside of nearly nine punchouts per nine innings. However, his ratios are expected to carry some risk, with our projection anticipating a 4.30 ERA and a 1.30 WHIP, largely driven by projected command issues (39 walks) and hit liability (105 hits). Fantasy managers can expect solid strikeout totals, but his walk rate remains a hurdle that could damage WHIP in any given week.

Ultimately, Rocker profiles as a high-risk, high-reward option for fantasy rotations. He is not a safe floor stabilizer, but his pedigree and dominant slider make him a prime target for managers looking to capture strikeout upside late in drafts. Treat him as a bench option with massive breakout potential if he can harness his control.

Updated 3 days ago

Latest News Kumar Rocker
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Performance Stephen Kolek
Fantasy Chart Loading...

ERA W-L HLD SV SO WLK WHIP GP
4.500-1001331.252
Season stats based on the past 7 days

ERA W-L HLD SV SO WLK WHIP GP
2.571-1001540.953
Season stats based on the past 14 days
Performance Kumar Rocker
Fantasy Chart Loading...

ERA W-L HLD SV SO WLK WHIP GP
0.000-000231.001
Season stats based on the past 7 days

ERA W-L HLD SV SO WLK WHIP GP
3.270-100751.092
Season stats based on the past 14 days
Next Up Own/Start Comparison
OWN/START Stephen Kolek
OWN
45%
+9.19 compared to last week
START
41%
+28.77 compared to last week
OWN/START Kumar Rocker
OWN
15%
+1.67 compared to last week
START
 
6%
-3.19 compared to last week
Next Up Consensus Rankings
Expert Consensus Stephen Kolek
117th
Average Ranking of Fantasy Experts
Expert Consensus Kumar Rocker
Not Ranked
Average Ranking of Fantasy Experts
Next Up Player Breakdowns
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 94th.
  • The current leader among SP's is Cristopher Sanchez
  • He is doing much better than most people thought he would.
  • Trending Pitching Stats

  • Top 15 in WHIP and is currently ranked 15th with 0.99
  • Top 50 in ERA and is currently ranked 50th with 3.38
  • Top 75 in wins and is currently ranked 73rd with 3
  • His average points in the past two weeks have remained fairly consistant and rose slightly by 0.5 PPG.
  • At this point in the season his numbers compared to last years: W: EVEN, L: EVEN, WHIP: -0.301, ERA: -0.239, K's: EVEN, Walks: -4
Breakdown Kumar Rocker

    Overview

  • Experts don't even rank him among SP's. Based on his stats from the past 60 days, he is currently ranked 96th.
  • The current leader among SP's is Jacob Misiorowski
  • Trending Pitching Stats

  • Top 100 in WHIP and is currently ranked 95th
  • Top 75 in ERA and is currently ranked 58th with 3.63
  • Top 15 in walks and is currently ranked 15th with 25
  • Currently ranked 182nd in wins with 2
  • His average points in the past two weeks have increased by 2.4 PPG.
  • At this point in the season his numbers compared to last years: W: +1, L: +1, WHIP: -0.62, ERA: -5.701, K's: +23, Walks: +18
Next Up Health Check
Injury Stephen Kolek

No Injury Reported

Injury Kumar Rocker

No Injury Reported

Next Up Matchup Comparison
Matchups Stephen Kolek
DateOpponentResult
Jun 01@CINLuinder AvilaW 2-9
Jun 02@CINBrock BurkeL 4-3
Jun 03@CINDaniel Lynch IVW 2-5
Jun 04@MINAndrew Morris
Jun 05@MINZebby Matthews
Jun 06@MINJoe Ryan
Jun 07@MINConnor Prielipp
ERA W-L HLD SV SO WLK WHIP GP
2.570-000821.141
Season stats based on this weeks opponents
Matchups Kumar Rocker
DateOpponentResult
Jun 01@STLJacob deGromW 1-2
Jun 02@STLCal QuantrillW 4-7
Jun 03@STLAndre PallanteL 5-3
Jun 05VS CLEParker Messick
Jun 06VS CLETanner Bibee
Jun 07VS CLEJoey Cantillo
ERA W-L HLD SV SO WLK WHIP GP
nan-nan0
Season stats based on this weeks opponents
Next Up Ratings Comparison
Rating Stephen Kolek
9.87
FantasySP Player Rating
Rating Kumar Rocker
8.03
FantasySP Player Rating
Next Up Career Comparison
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 6 38.0 554 27 8 0 3-1 3.32 0.97 6.4 98
ON PACE 15 100 1447 70 20 0 7-2 3.32 0.97 6.4 254
3-YEAR AVG 31 75 1243 58 22 0 4-4 4.32 1.35 7 150
Career 67 188.0 3040 143 51 0 0-0 4.07 1.26 6.9
Career Kumar Rocker
YEAR TM APP INN PC K WLK SV W-L ERA WHIP K/9 PTS
2024 TEX 3 11.2 218 14 6 0 0-2 3.86 1.54 10.8 13
2025 TEX 14 62.0 1127 56 23 0 4-5 5.95 1.52 8.1 101
2026 TEX 11 56.0 932 44 25 0 2-5 3.54 1.3 7.1 91
ON PACE 28 147 2435 114 65 0 5-13 3.54 1.3 7.1 239
3-YEAR AVG 9 37 673 35 15 0 2-4 5.45 1.5 8.3 57
Career 28 129.2 2277 114 54 0 0-0 4.72 1.43 7.9
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Player News

Matchups

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 LAD 09:40 EDT EST Ryne Nelson
Justin Wrobleski
ATH @CHC 08:05 EDT EST J.T. Ginn
Shota Imanaga
ATL vs TOR 07:15 EDT EST Chris Sale
Mason Fluharty
BAL @BOS 01:35 EDT EST Trevor Rogers
Brayan Bello
CLE @NYY 01:35 EDT EST Slade Cecconi
Carlos Rodon
HOU vs PIT 08:10 EDT EST Kai-Wei Teng
Jared Jones
KC @MIN 07:40 EDT EST Seth Lugo
Andrew Morris
MIL vs SF 02:10 EDT EST Coleman Crow
Adrian Houser
PHI vs SD 01:05 EDT EST Zack Wheeler
Lucas Giolito
Matchup Time
No games scheduled
Matchup Time
VGK @CAR 8:00 PM EST