Stephen KolekKCR · SP

2026 review

Stephen Kolek held a rotation spot when healthy but couldn't stay on the mound: a 4.50 ERA and 1.24 WHIP in 54.0 IP over 10 starts, with a 15.2 K% and a 5.4 BB% over 224 BF, going 4 W and 3 L. He opened the year on the 15-day IL retroactive to Mar 22 with a left oblique strain, took a rehab assignment Apr 12, and wasn't activated until May 5, missing 111 regular-season days total across 2 stints. KCR optioned him May 6 and recalled him May 8, he went on the paternity list Jun 26 and the bereavement list Jun 29 before being activated Jul 2, then took another rehab assignment Jul 18 ahead of a right flexor strain that put him on the 15-day IL Jul 19 and saw him transferred to the 60-day IL Jul 22. Drafted at NFBC ADP rank 1215, taken in 267 of 674 drafts as an occasional pick, he finished 700th of 1472 in the TDK LABS 5x5 value rank and 103rd of 236 starting pitchers. His 5.4 BB% over 224 BF was the 34th lowest of 517 pitchers with 100+ BF. His 15.2 K% over 224 BF was the 36th lowest of 517 pitchers with 100+ BF. His 4.50 ERA ran 0.63 above his 3.87 xERA over 224 BF. The TDK LABS card had him back and starting May 5 off an oblique rehab assignment, by late Jun had him day-to-day on the paternity list, and by late Aug had him on the 60-day IL.