Prep Baseball Report
Cooper Chapple
Cooper Chapple

CLASS OF 2026

RHP
SS

Cooper
Chapple


Waubonsie Valley (HS) • IL
6' 3" • 165LBS
R/R • 18yr 8mo
Travel Team: ESP American
2026 National

Rankings available to Premium Subscriber

Log In Subscribe to PrepBsl Plus

2026 State

Rankings available to Premium Subscriber

Log In Subscribe to PrepBsl Plus

Commitment

Videos

This Area is only available to Prep Baseball Plus subscribers.

Best of Snapshot
News
Comments
Contact

Best Of Stats

Pitching

Fastball

87.1
Velocity (max)
2/16/26
85 - 87
Velo Range
2/16/26
1863
Spin Rate (avg)
6/10/25

Changeup

75 - 76
Velo Range
2/16/26
1949
Spin Rate (avg)
6/10/25

Curveball

70 - 73.2
Velo Range
2/16/26
2379
Spin Rate (avg)
2/16/26

Game Performance

Notes

Comments

2/16/26

Positional Profile: RHP/SS
Body: 6-3, 165-pounds. Wiry, long-levered, projection.
Delivery: Side step into high knee tuck, tall balance point. Low-effort, fluid down mound, works closed, balanced.
Arm Action: RH. Long draw, compact to high 3/4; loose, arm speed.
FB: T87, 85-87 mph. Rise/run, efficient; late arm-side life. T1905, 1773 average rpm.
CB: 70-73 mph. Feel, intent; 10/4 shape. Two-plane, projects for swing-and-miss. T2461, 2379 average rpm.
CH: 75-76 mph. Deceptive and at arm speed; fade/run, feel. T1880, 1771 average rpm.

2/16/26

RHP Cooper Chapple (Waubonsie Valley, 2027) is an uncommitted arm to continue to follow after the event. Presenting a wiry frame at 6-foot-3, 165-pounds with room to mature physically in the coming years, he showed an intriguing three-pitch mix. His fastball sat 85-87 mph with arm-side run (avg. 16.4” HM). He tossed in a 70-74 mph curveball with above-average spin (avg. 2379 rpm), and rounded things out with a 73-76 mph changeup that displayed significant fade (avg. 17.6” HM). Chapple will be a name to watch this spring.

6/10/25

RHP Cooper Chapple (Waubonsie Valley, 2026) came to his first Prep Baseball event and showed very well. The right-hander lean, wiry 6-foot-3, 160-pounder sat 84-85 mph with a spin efficiency of 96%. His changeup sat 69-71 mph with an average HM of 15.2 inches. Chapple’s curveball shows a lot of potential as it sits 65-68 mph with an average spin rate of 2339 RPM and an average HM of -18.8 inches while having an average IVB of -12.7 inches.

6/10/25

Positional Profile: RHP/3B
Body: 6-4, 165-pounds.
Delivery: Controlled, easy, high leg lift with tuck, drop/drive.
Arm Action: RH. Long, clean, low 3/4 slot.
FB: T86, 84-86 mph. Firm action, showed life out of the hand. T1931, 1863 average rpm.
CB: 65-68 mph. 10/4 shape, sharp. T2412, 2340 average rpm.
CH: 69-71 mph. Heavy arm-side fade, plays at the bottom of the zone. T2024, 1949 average rpm.

Draft Reports

Contact

Premium Content Area

To unlock contact information, you need to purchase a ScoutPLUS subscription.

Purchase Subscription
OR
Login

Twitter