Track Theorem PRE-DRILLED Bowling Ball

This ball ships professionally PRE-DRILLED for your convenience.

We’ve simplified the process so you can hit the lanes faster. Based on the ball weight you choose, we’ll drill it to a standard hand size that fits most bowlers in that weight range:

• X-Small (6lbs): Ages 8 & under
• Small (8–9lbs): Ages 8–11, women’s ring size 8–11
• Medium (10–12lbs): Ages 11–15, adult ring size 10 or under
• Large (13–14lbs): Men’s ring size 10–12 or larger hands
• X-Large (15–16lbs): Men’s ring size 13+ or extra-large hands

Want a different drilling size than standard?
Email us immediately after checkout with your order number and your preferred size.

Track Theorem Bowling Ball

Precision meets innovation with the Track Theorem Bowling Ball—a game-changer for bowlers who demand angularity, control, and versatility on medium to heavy oil lanes. Whether you're a seasoned competitor or a passionate league bowler, Theorem’s hybrid performance will sharpen your angles and elevate your results.

At the heart of the ball is the MC2 Asymmetrical Core, an advanced evolution of Track's proven Triton Elite design. This core delivers a dynamic shape that reads the mid-lane with precision and delivers explosive motion at the breakpoint. Wrapped in the Prime Response Hybrid Reactive coverstock with HK22 technology, Theorem offers the best of both worlds—gripping the lane for control while unleashing a sharp backend reaction for better pin carry.

Finished with 1500 Grit Polish, the ball creates a clean glide through the front part of the lane while biting with authority in the mid-lane and backend. A low RG of 2.47 and a differential of .046 mean Theorem revs up quickly, creating strong flare and a continuous, angular motion that dominates the pocket.

Technical Specifications:

• Brand: Track

• Coverstock Type: Hybrid Reactive

• Coverstock Name: Prime Response Hybrid Reactive (HK22)

• Core Shape: Asymmetrical Core

• Core Name: MC2 Asym Core

• RG (15LB): 2.47

• Differential (15LB): .046

• Mass Bias Strength: .017

• Flare Potential: 4 – 5 Inches

• Surface Finish: 1500 Grit Polish

• Lane Conditions: Medium – Heavy Oil

• Performance Level: High Performance

• Color: Black, Purple, Red

• Available Weights: 12LB – 16LB

• Scent: None

• Warranty: 2 Years from Date of Purchase

Care Tip: For longer life and consistent performance, clean with Ultimate Black Magic Rejuvenator after each use.

With its unique asymmetrical design and reactive hybrid cover, the Track Theorem offers a formula for success on the toughest conditions—making it the smart choice for serious bowlers.