Zack
Ziroli

LHP Zack Ziroli (Downers Grove North, 2025) impressed throughout our brief look. Upside frame, listed at 6-foot-1, 175-pounds with room for added strength. The southpaw worked his fastball up to 82 mph, playing with heavy run/sink at times. He paired the fastball off a big-breaking curveball in the mid-60s, landing it for strikes and even back-dooring some hitters with it.

LHP Zack Ziroli (Downers Grove North, 2025) is an uncommitted two-way that provided more than enough for his team this weekend on the mound. Working out the stretch, the 6-foot-1 southpaw demonstrated strong poise and attention to detail throughout clean and difficult innings. Mixing between a 81-82 mph fastball and a 66-67 mph sweeper, Ziroli was able to keep the hitters off-balance and created swing and miss.

LHP Zack Ziroli (Downers Grove North, 2025) was recently a winner at the Northwest Suburban Open this summer, and gave another intriguing look at the Illinois State Games. Ziroli is an athletic 6-foot, 175-pound southpaw that moves well around the mound with an easy, fluid arm action. His fastball primarily worked in the low-80s with carry up in the zone (T2455 RPM), and he spun a tight curveball in the high-60s with late bite to get swings and misses around the zone (T2715 RPM). 

Positional Profile: LHP/OF
Body: 6-0, 170-pounds.
Delivery: Controlled tempo, high leg lift, slight pre-set bend in the back knee, works in-line down the mound.
Arm Action: LH. Long, loose arm action. Lower 3/4 slot.
FB: T82, 81-82 mph. Run. Ability to spot up. T2455, 2285 average rpm.
CB: 67-68 mph. Sharp 1/7 action with occasional depth. T2715, 2634 average rpm.
CH: 76-78 mph. Thrown low in the zone with fade. T1971, 1917 average rpm.

At 6-foot-1, 170-pounds LHP/OF Zach Ziroli (Downers Grove North, 2025) was a two-way winner from this event. Offensively, Ziroli flashed bat strength at the plate from an uphill right-handed swing that worked gap-to-gap as a result. He played with bounce and an intentful first step from the outfield, flowing freely throughout his defense workout. Ziroli showed a loose arm that peaked at 84 mph on his best bullet and hopped on the mound later on, pitching in the low-80s with his fastball while mixing in a mid-60s curveball, too. 

At 6-foot-1, 170-pounds LHP/OF Zach Ziroli (Downers Grove North, 2025) was a two-way winner from this event. Offensively, Ziroli flashed bat strength at the plate from an uphill right-handed swing that worked gap-to-gap as a result. He played with bounce and an intentful first step from the outfield, flowing freely throughout his defense workout. Ziroli showed a loose arm that peaked at 84 mph on his best bullet and hopped on the mound later on, pitching in the low-80s with his fastball while mixing in a mid-60s curveball, too.

Positional Profile: LHP/OF
Body: 6-0, 170-pounds.
Hit: RHH. Crouched setup, open stance, small leg lift, short stride. Athletic swing, stays on-plane, controlled intent, present bat speed and hard up-the-middle contact. 68.1 mph bat speed with 13 G’s of rotational acceleration.
Power: 91 max exit velocity, averaged 82.8 mph. 338’ max distance.
Arm: LH. OF - 84 mph. Short, quick arm, 3/4 slot.
Defense: Athletic actions, proper routes, attacks with purpose, works in-stride, clean and directional release.
Run: 7.29 runner in the 60.