{"merchant":{"slug":"bowlersmart","name":"BowlersMart","domain":"www.bowlersmart.com"},"id":"982139","sku":"TRA-THE-PEA","gtin":null,"name":"Track Theorem Pearl Bowling Ball","brand":"Track","categories":[{"name":"Asymmetrical Core Bowling Balls","slug":"asymmetrical-core-bowling-balls"},{"name":"Bowling Ball Deals","slug":"bowling-ball-deals"},{"name":"Bowling Balls","slug":"bowling-balls"},{"name":"Bowling Deals","slug":"bowling-deals"},{"name":"High Performance Bowling Balls","slug":"high-performance-bowling-balls"},{"name":"Mid-Performance Bowling Balls","slug":"mid-performance-bowling-balls"},{"name":"Pearl Reactive Bowling Balls","slug":"pearl-reactive-bowling-balls"},{"name":"Track","slug":"track"},{"name":"Track Bowling Balls","slug":"track-bowling-balls"}],"buy_url":"https://www.bowlersmart.com/product/track-theorem-pearl-bowling-ball/","pages":{"html":"https://ittems.com/bowlersmart/p/track-theorem-pearl-bowling-ball","md":"https://ittems.com/bowlersmart/p/track-theorem-pearl-bowling-ball.md","json":"https://ittems.com/bowlersmart/p/track-theorem-pearl-bowling-ball.json"},"price":{"min":109.95,"max":109.95,"currency":"USD"},"availability":"instock","checked_at":"2026-10-15T17:34:10.676878+00:00","source_updated_at":"2026-10-15T07:21:35+00:00","summary":"What should I know about the Theorem Pearl? Asymmetric MC2 Asym Core with DynamiCore for shape and flare Prime Response Pearl (HK22) cover at a polished finish for length and a sharp backend A clean, angular asymmetric for medium oil and transition","specs":[{"key":"Brand","value":"Track"},{"key":"Bowling Ball Core Shape","value":"Asymmetrical Core"},{"key":"Bowling Ball Core Name","value":"Track MC2 Asym Core"},{"key":"Bowling Ball Coverstock Type","value":"Pearl Reactive"},{"key":"Bowling Ball Cover Name","value":"Track Prime Response Pearl Reactive"},{"key":"Radius of Gyration: RG (15LB)","value":"2.47"},{"key":"Differential: Diff (15LB)","value":".046"},{"key":"Mass Bias Strength","value":".017"},{"key":"Flare Potential","value":"4 - 5 Inches"},{"key":"Surface Finish","value":"1500 Grit Polish"},{"key":"Preferred Lane Conditions","value":"Medium Oil"},{"key":"Ball Performance Level","value":"High Performance Bowling Balls"},{"key":"Bowling Ball Color","value":"Blue, Purple"},{"key":"Scent","value":"None"},{"key":"Release Date","value":"November 2024"}],"variants":[{"sku":"TRA-THE-PEA-16","gtin":"840315618305","label":"16LB","price":109.95,"stock":1,"options":{"Ball Weight":"16LB"},"availability":"instock","regular_price":259.99},{"sku":"TRA-THE-PEA-15","gtin":"840315611214","label":"15LB","price":109.95,"stock":11,"options":{"Ball Weight":"15LB"},"availability":"instock","regular_price":259.99}],"images":[{"alt":"track-theorem-pearl-ball-nov2024","url":"https://www.bowlersmart.com/wp-content/uploads/2024/11/track-theorem-pearl-ball-nov2024.jpg"},{"alt":"Track Mc2 Asym 14 15 and 16lb","url":"https://www.bowlersmart.com/wp-content/uploads/2024/11/Track-Mc2-Asym-14-15-and-16lb.png"},{"alt":"Track Mc2 Asym","url":"https://www.bowlersmart.com/wp-content/uploads/2024/11/Track-Mc2-Asym.png"}],"release_date":"November 2024","description":"Clean Length and an Angular Backend\n\nAbout the Theorem Pearl\n\nThe Track Theorem Pearl is a clean, angular asymmetric for medium oil. It pairs the asymmetric MC2 Asym Core with the Prime Response Pearl (HK22) coverstock at a polished finish, so it gets down the lane cleanly and then makes a strong, angular move off the friction. It is the length-and-angle piece of the Theorem pair.\n\nThe Theorem Pearl wraps the proven MC2 asymmetric core in a polished HK22 pearl. The core gives it a defined breakpoint and plenty of flare, while the pearl cover conserves energy through the heads for a sharper, more angular finish than the solid Theorem. It is the answer when you want an asymmetric shape with length and downlane pop.\n\nUnderstanding the Track MC2 Asym Core and Track Prime Response Pearl (HK22)\n\nTrack built the Theorem Pearl for clean length and an angular backend on medium oil. Specifically, the asymmetric MC2 Asym Core posts a 2.47 RG, a .046 differential, and a .017 intermediate differential for a defined breakpoint, while the Prime Response Pearl HK22 cover at a polished finish conserves energy through the fronts for a sharp move down lane. As a result, it gives you length with an angular, asymmetric backend. The per-weight specifications are listed below.\n\nA Defined Asymmetric Core for Shape and Flare\n\nAt the heart of the Theorem Pearl is the asymmetric MC2 Asym Core. At 15 lb it measures a 2.47 RG, a .046 differential, and a .017 intermediate differential, a combination that produces strong flare and a defined, asymmetric breakpoint. The low RG gets the ball revving, while the intermediate differential adds a clear, continuous shape at the spot.\n\nTrack wraps the MC2 core in DynamiCore, Brunswick's industry-leading outer-core technology, for added durability and a stronger hitting ball. Because the core is asymmetric, your pro shop can tune the layout to control how clean and how angular the Theorem Pearl plays.\n\nA Polished HK22 Pearl for Length and a Sharp Backend\n\nThe Theorem Pearl wraps that core in Track's Prime Response Pearl (HK22) coverstock at a polished factory-compound finish. The pearl additive and polished surface let the ball conserve energy through the front of the lane, so it gets down cleaner than the solid Theorem and then makes a stronger, more angular move off the friction.\n\nThat clean read and sharp backend make the Theorem Pearl the length-and-angle partner to the Theorem Solid: when the solid reads too early on a drying lane, the pearl pushes through the heads and saves its energy for the pins. Leave it polished for length and angle, or take the surface down at your pro shop for an earlier, smoother read on more oil.\n\nTheorem Pearl Specs\n\nRG and differential vary by weight. Specifications provided by the manufacturer.\n\nWho This Ball Is Right For\n\n✓Tournament Players: A clean, angular asymmetric pearl for medium oil and transition\n\n✓Higher-Rev Bowlers: The MC2 core and clean HK22 pearl reward revs with a sharp, continuous backend\n\n✓Tweener and Speed-Dominant Styles: Cleaner length through the fronts with the shape of a defined asymmetric\n\n✓Arsenal Builders: The angular, later-reading complement to the earlier-rolling Theorem Solid\n\nGood to Know Before You Buy\n\n·Ships polished: The 1500 Grit Polish finish runs clean and long out of the box. For an earlier read on heavier oil, take the surface down at your pro shop.\n\n·Asymmetric layout sensitivity: Layout choices shift the reaction more than on a symmetric ball. Match the pin and mass bias to your game with your pro shop.\n\n·Colors vary: Actual colors vary somewhat from the photos shown; no two balls come out of the mold exactly alike.\n\n·Tiny pit holes are normal: A few tiny pit holes in the coverstock are a normal part of the manufacturing process.\n\n·Sold undrilled: Ships without finger holes, so it can be fitted to your hand and span.\n\nBowlersMart Tips: Where the Theorem Pearl Fits in Your Track Arsenal\n\nWhere It Fits in Your Arsenal\n\nIn the Track lineup, the Theorem Pearl is the cleaner, more angular version of the Theorem Solid. They share the MC2 asymmetric core, but the pearl reads later with a sharper backend. Throw the solid Theorem on fresh medium to heavy oil, then move to the Theorem Pearl as the lane transitions and you want more length and angle.\n\nSurface Adjustments\n\nThe polished finish gives the Theorem Pearl its clean length and angular backend. Take the surface down with a lower-grit pad for an earlier, smoother read on more oil, or keep it polished for maximum length when the lanes dry. Have surface changes done at your pro shop for an even, consistent finish.\n\nCoverstock Care\n\nWipe the HK22 pearl cover with an approved reactive ball cleaner after every session, and deep clean it periodically. Keeping the cover fresh preserves the clean length and sharp backend that define the Theorem Pearl.\n\nEarn points on every Track purchase through the Striking Rewards loyalty program. Every ball you add to your arsenal builds toward your next reward.\n\nShop With Confidence at BowlersMart\n\nThe Track Theorem Pearl Bowling Ball ships free with no minimum purchase and is backed by our 60-day return policy. As an authorized Track dealer, every ball is genuine and covered by the full one-year Track warranty. Place your order before 2 PM EST and it ships the same day.\n\nWeight\nRadius of Gyration (RG)\nDifferential\nMass Bias\n\n16 lbs\n2.485\n.044\n.017\n\n15 lbs\n2.473\n.046\n.017\n\n14 lbs\n2.487\n.046\n.017\n\n13 lbs\n2.597\n.041\n.014\n\n12 lbs\n2.593\n.041\n.014","policies":[{"text":"Free ground shipping on US orders, no minimum, 48 contiguous states and military APO/FPO. To Alaska, Hawaii, Puerto Rico and Guam bowling balls ship for $24.95 per ball, most other items free; oversized roller bags cost extra there. International orders pay the rate shown at checkout, duties paid locally.","title":"Shipping","source_url":"https://www.bowlersmart.com/shipping-information/"},{"text":"In-stock items ordered by 2PM EST Monday to Friday ship the same day, later orders the next business day. Carriers USPS, UPS, FedEx. Standard delivery 3 to 7 business days; expedited options at checkout.","title":"Processing and delivery","source_url":"https://www.bowlersmart.com/shipping-information/"},{"text":"60 days from delivery for US customers on new, unused items in original packaging, free prepaid return labels. Drilled bowling balls cannot be returned or exchanged. Shoes must have been tried on a clean, dry surface. Manufacturing defects and shipping damage go through the defect claim process.","title":"Returns","source_url":"https://www.bowlersmart.com/return-exchange-policy/"},{"text":"Credit and debit cards, PayPal, Apple Pay, Google Pay, Venmo, Amazon Pay, and buy now pay later through Affirm, Afterpay and Klarna.","title":"Payment","source_url":"https://www.bowlersmart.com/payment-options/"},{"text":"Pro shops inside bowling centers in 10 US states fit, drill and service equipment; a ball bought online can be drilled there.","title":"Pro shops","source_url":"https://www.bowlersmart.com/locations/"},{"text":"www.bowlersmart.com is the only website of BowlersMart. Lookalike domains are fraudulent.","title":"Identity","source_url":"https://www.bowlersmart.com/resources/scam-awareness/"}]}