Here's the AI fastball reports for the fifteen pitchers I posted above. Much better speeds than I expected, especially for Kipp and JP Wheat; I also learned JP stands for JonPaul:
Jaxon Wiggins sits consistently in the 94–97 mph range with his fastball, and has been clocked touching 99–100 mph in both his college career and early professional outings.
Brandon Birdsell’s fastball typically sits in the mid‑90s, with a range of 94–96 mph, and has been known to touch upper-90s, even 98 mph in 2024. Scouts have noted… His fastball “sits at 94–96 mph and tops out at 98” in Triple‑A, with strong movement and command.
Will Sanders, the Cubs’ tall right-hander, typically features a fastball sitting between 92–94 mph, with his average hovering around 93 mph. Scouts note he has touched as high as 96–98 mph at peak moments.
Ryan Gallagher, His four-seamer generally ranged from 88–90 mph, with bursts up to 92–93 mph, and was noted for its late rising action. Since joining the Cubs he has added about 2 mph to his fastball at the beginning of his pro career, working at 90-93 mph and topping out at 95. As he matures there's more projectable growth with his four-seamer.
Erian Rodríguez, the Chicago Cubs’ right-handed pitching prospect, features a well-toned fastball that sits in the mid‑90s and occasionally reaches the upper‑90s. 2024 update Single‑A to High‑A: his fastball sat regularly in the 94–96 mph range, with occasional 99 mph readings featuring strong horizontal movement.
Nazier Mule’s Average velocity: typically 94–96 mph, with touches up to 98 mph, featuring some arm-side run. Pro debut (2024 Low‑A Myrtle Beach): His fastball has consistently sat 94–97 mph, with the combination of heater and slider noted as the system’s “nastiest”.
Drew Gray’s fastball sits comfortably in the 92–95 mph range, featuring quality carry and a deceptive extension in his delivery. Scouts have noted he’ll commonly hit 92–93 mph, with occasional touches up to 96 mph. His fastball hasn't been as fast with the Cubs as he makes adjustments in the minors.
Grant Kipp’s fastball velocity has steadily climbed — here’s the latest breakdown: During the 2024 Arizona Fall League, scouts reported his four-seamer sat in the low–90s mph, using it primarily to set up his slider in the low–80 In the early 2025 season, reports out of Knoxville indicate his fastball typically sits around 95 mph and can touch up to 97 mph on occasions.
Nick Dean, a right-handed pitcher in the Cubs system, doesn't rely on overpowering velocity—but his fastball sits comfortably in the low‑90s mph, typically 90–92 mph, and has been known to touch 93 mph toward the end of outings.
Tyler Schlaffer’s fastball topped out in the mid-90s mph (94–95 mph) during his senior season at Homewood‑Flossmoor High School. 2025 Rookie-Level (Complex Leagues): Reports indicate his fastball can touch 97 mph, showing that his velocity ceiling remains intact.
JP Wheat’s pre-draft (High School/Showcases): Scout reports from spring 2021 noted his fastball sat 94–96 mph, with occasional 97 mph readings.Post-draft projections: Early firearm shows hit 94–96 mph, with some readings up to 97 mph. He reportedly hit 100 mph in 2025 camp, displaying outstanding arm strength and power early in the year.
Connor Noland’s average fastball pace (90–91 mph) underscores his role as a crafty, control-heavy starter or multi-inning reliever, rather than an overpowering arm. His fastball serves to set up off-speed pitches, keeping hitters off balance, in a style reminiscent of Kyle Hendricks.
Brody McCullough’s four-seam fastball consistently sits in the 91–95 mph range, occasionally touching 95–96 mph. Though not blazing fast, it plays faster than the radar shows thanks to a flat plane, strong carry, and deception.
Sam Armstrong’s fastball in College (Old Dominion) was in the 93–94 mph range, consistently generating that velo throughout his NCAA career .2025 (Double-A Knoxville): While specific velocity readings are limited this year, his pitching mechanics and arm strength suggest he’s maintained the low‑90s averaging 93–94 mph on his four-seam. Velocity is similar to his college and early pro work.
Brooks Caple in college (Lamar University) consistently sat 94 mph, with the ability to touch 95 mph — his fastball featured a strong “ride,” often playing above its raw speed thanks to his 6'6" frame and extension. Pre-draft evaluations listed his fastball typically at 90–95 mph, with occasional peaks up to 97 mph, although that top-end is sporadic.