Criterion
The Track Criterion uses a new asymmetrical core shape that gives it a lower RG (2.500″), a medium-high differential (0.052″), and a strong intermediate differential (0.018″). This new design is surrounded by a new coverstock. The Criterion uses the QR-12 Solid cover with HK22C. This new coverstock is finished with 500 and 2000 SiaAir, giving this strong ball a dull and rough finish to help it dig through the oil. We found the Criterion most useful while our test conditions were fresh, using its strong cover, core, and box finish to create traction when other balls wanted to skid a bit too much.
Criterion Hybrid
The Track Criterion Hybrid is a high-performance bowling ball featuring the new Super Response Hybrid coverstock (with HK22C) and the Criterion M.D. (Multi-Density) asymmetric core, designed for strong mid-lane traction and a powerful, yet controlled, backend reaction, making it excellent for heavy oil conditions and versatile for different playing styles. It offers a smoother, heavier roll than the original Criterion but with more backend reaction than a typical pearl, providing a strong, directional, hockey-stick shape for consistent performance on challenging patterns.
Criterion Inverse
The Track Criterion Inverse flips the script with an innovative reversed two-density core. This provides cleaner, more controlled motion, blending wet and dry patterns better than traditional asymmetric balls.With a reduced total differential, the Criterion Inverse delivers confidence on medium and challenging patterns, where both power and control are key. A tester favorite for bowlers seeking precision without sacrificing performance.
Cypher Pearl
The Track Cypher Pearl is the perfect step up from the Cypher Solid, offering more length and an explosive backend motion. With the trusted Synergy core and upgraded HK-22 Prime Response Pearl coverstock, this ball thrives on medium oil conditions.Finished in a vibrant blue, amethyst, and silver design, the Cypher Pearl blends style with high-end performance. If you're seeking sharp backend movement without sacrificing control, this ball is your go-to.
Paragon Shadow
The Track Paragon Shadow represents the next evolution in the Paragon series—designed to provide competitive bowlers with exceptional control, strength, and mid-lane traction on challenging oil patterns. It features the powerful I-Core 3.0 at its heart, known for delivering strong asymmetric motion, paired with the new QR-12 Hybrid coverstock enhanced by the HK22C base and Cohesion additive. This pairing generates outstanding friction in the mid-lane and a predictable, continuous shape through the pins.
With a 1500 grit Siaair finish, the Paragon Shadow is tailored for heavy oil conditions and excels in environments where most balls lose their bite. It is especially effective for bowlers with lower rev rates who need extra help from the cover and core to generate motion and carry. The hybrid nature of the coverstock offers the perfect blend of control and sharpness, delivering a confident and smooth reaction without over-skidding or over-reacting.
Whether you're battling through a long tournament block or adapting to high-volume house shots, the Paragon Shadow offers a high-performance solution that doesn't compromise on versatility or reliability.
Stealth Mode
The Track Stealth Mode is a modern benchmark bowling ball, an evolution of the beloved original Stealth, featuring the original Stealth Symmetrical Core for consistent motion but with an upgraded, stronger QR-10 Solid Reactive Coverstock for more traction and power, especially on medium-to-heavy oil, offering a smooth, controllable, yet aggressive mid-lane and backend reaction that makes it a versatile first ball out of the bag for many styles
Theorem
The Track Theorem Solid expands on the proven success of the Theorem line by introducing a solid coverstock option designed to tackle medium to heavy oil conditions. Retaining the clean length and sweeping backend motion that made the Hybrid and Pearl versions so popular, the Solid brings added traction and earlier lane read for better performance when oil is more abundant.
Whether you're using it as your first ball out of the bag or switching to it when transition hits, the Theorem Solid is built for versatility and consistency. It’s a smart addition to your arsenal when you need a predictable shape with more bite up front—ideal for competitive bowlers who demand precision under pressure.
Theorem Pearl
The Theorem Pearl shares the MC2 Asym core design with the very successful Theorem. This ball changes the coverstock to Prime Response Pearl (HK22) from the Prime Response Hybrid (HK22) veneer that was used on the original. Both balls share the same shiny box finish, allowing the Theorem Pearl to clear the front easily before making a strong turn when it finds the dry. The added motion off the dry allowed us to cover more boards than with the Theorem. We were able to open up the lane more and see more downlane recovery compared to the Theorem, Stealth Hybrid, or Criterion. We found this ball to be effective for all three bowlers across all four of our patterns with the box finish. Adjusting the surface when needed provided even more versatility, allowing us to fine-tune its reaction for different conditions.
Theorem Solid
The Track Theorem Solid expands on the proven success of the Theorem line by introducing a solid coverstock option designed to tackle medium to heavy oil conditions. Retaining the clean length and sweeping backend motion that made the Hybrid and Pearl versions so popular, the Solid brings added traction and earlier lane read for better performance when oil is more abundant.
Whether you're using it as your first ball out of the bag or switching to it when transition hits, the Theorem Solid is built for versatility and consistency. It’s a smart addition to your arsenal when you need a predictable shape with more bite up front—ideal for competitive bowlers who demand precision under pressure.

