Jaxon Wiggins is the top pitching prospect for the Chicago Cubs, ranking at #58 in the MiLB Top 100 (one spot above Arizona’s Ryan Waldschmidt). He stands at a towering 6’6″ and has a 70-grade fastball that lives at 98 MPH but can regularly touch 101. He also has a plus slider that gets a ton of swings and misses and, sitting in the upper 80s-low 90s. He has good control over his changeup, and a curveball that is lagging behind the rest of his pitches but is improving.

In 106 innings across 3 levels in 2025, Wiggins posted a 2.72 ERA with a WHIP just north of one and 11 Ks/9. If he can improve his control, he could be lethal. His 4.5 walks/9 last season is a bit of a question mark.

In terms of a big league comp, I see a few things. I’ll start with a ceiling and a floor, then finish with the realistic middle.

I think Wiggins ceiling is Dylan Cease. Both have devastating sliders that sit ~88MPH that can get hitters out, and they use it off of a plus fastball to keep hitters guessing. Wiggins is significantly taller than Cease, and Cease relies on his slider much more than the young Cubs prospect, but the stuff is definitely comparable.

The floor is Jordan Hicks. I absolutely think Wiggins is much closer to his ceiling than his floor right now, but I feel like we need to at least acknowledge it. Hicks is a former to prospect of the St. Louis Cardinals, who possesses triple-digit heat and great movement, but has struggled to find consistency with strikes. He initially found some success in the San Francisco Giants rotation in 2025, but his control has been his main stumbling block in his career.

The realistic middle is Michael Kopech. Tall, big velocity, questions about command volatility that will determine long-term role.

Jaxon Wiggins is the Cubs’ single most intriguing pitching prospect entering 2026, who is expected to see action at the Major League level. His rapid climb through High-A, Double-A, and Triple-A reflected production backed by premium tools. If he does cut down those walks, throws strikes consistently and continues to develop that curveball to the same level as his slider and change, he could develop into a middle-of-the-rotation guy that NO ONE wants to see on the mound.