Kaleb Wing 5/15/26

Cubs 2025 4th Rounder Kaleb Wing threw Friday on the Sloan Backfields. Advanced HS righty from Cali. Exciting arm many would argue has the best pure stuff on the AZ complex and highest upside. Bad outing outing results wise, but you can still see why he’s gotten so much hype.

Absolute bulldog mound presence –works quickly and is on the attack. Gave up a homer and didn’t look remotely fazed. Next pitch - just went about his business. Makeup read: hyper-competitive borderline manic energy on the mound (in a good way). Deep pitch mix. Fastball LOOKS high carry. CHG an invisi-ball that drops off the table late and projects to double plus. Multiple slider variations: one a shorter cutter-ish slider and the second had more depth. Able to land spin in zone or as chase pitches. Likes to back door curve to lefties early in counts. Curve was tight 12/6 breaker with lower crest – LOOKED high spin.

Makes hitters defend full zone: combo approach. Worked fastball E/W early, also to change eye levels and set up secondary stuff or vice versa. Multiple pitches to attack both-sided hitters and enough wrinkles to turn over a lineup.

Listed at 6’2” 180. Well proportioned, right mix of athletic/loose and strong. Not completely filled out yet. Not the biggest guy but believe he will be strong enough to log SP innings as he fills out. Repeats delivery well. Lot of torque with big hip to shoulder separation – rotates very well. Live arm with plus arm speed. Elbow flexion inside 90.

Should throw a lot of strikes and quality of stuff may give him some margin for error. Highest upside arm I have seen on the complex this year. Believe in #2 SP potential. Consistency of breaking ball shapes can be improved. Fastball can be touched lower half and believe more a N/S approach would be ideal.