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Scouting Report
Updated May 19, 2026
Stephen Kolek was activated from the 15-day IL on May 5, 2026, after recovering from a Grade 1 left oblique strain suffered during spring training. He made his 2026 MLB debut on May 5 against the Guardians, earning a quality start with 6 innings pitched, 3 earned runs, 4 hits, 0 walks, and 3 strikeouts. He was subsequently recalled on May 12 to fill in for injured ace Cole Ragans (elbow impingement) and is slated to start multiple games in the rotation, including against the White Sox and Cardinals.
Strengths
- + Successful return from oblique injury with quality start debut
- + Earned a win in his first 2026 appearance
- + Completed 6 innings in debut start
- + Recalled to fill rotation spot for injured Ragans
- + Completed 4 rehab appearances at Triple-A before activation
- + No walks allowed in debut
- + Opportunity for multiple starts per week
Weaknesses
- - Recent oblique strain (Grade 1+) limited him to spring training
- - Demoted to Triple-A after debut before being recalled
- - Allowed 3 earned runs in debut start
- - Limited strikeout production (3 K's in 6 IP)
- - Rehab appearance showed some inconsistency (3 runs in 4.1 IP)
About
Adam Kolarek is a rp for the Chicago Cubs.
Player Overview
Position
RP
Team
Chicago Cubs