Bowling ball core · Track

Track Criterion MD Core

Asymmetric Track core

An asymmetric core with mid-lane rev-up and high flare, built for medium to heavy oil. 1 of the 2 balls with this core are in stock at BowlersMart.

  • Asymmetric
  • RG 2.500
  • Diff 0.052
  • MB 0.018
Track Criterion MD asymmetric core shape inside the ball

Specs

RG AT 15 LB

2.500

Mid-lane rev-up

Revs soonerRevs later

42% of the reactive and urethane balls we stock have a lower RG.

DIFFERENTIAL AT 15 LB

0.052

High flare

Less flareMore flare

72% of the reactive and urethane balls we stock have a lower differential.

MASS BIAS AT 15 LB

0.018

Medium asymmetry

MilderStronger

62% of the asymmetric reactive and urethane balls we stock have a lower mass bias.

RG How soon the ball revs up.Differential How much the ball can flare.Mass bias How asymmetric the core is.
Track Criterion MD Core specs by ball weight
Weight RG DifferentialDiff Mass biasMB
15 lbUsed on this page 2.500 0.052 0.018

Other weights are not in our catalog for this core.

Balls with the Track Criterion MD Core

1 of the 2 balls with the Track Criterion MD Core are in stock at BowlersMart. Same core, different covers: pick the cover for the lanes you bowl on.

Track Criterion Bowling Ball

Track Criterion

Track QR-12 Solid Reactive

Medium to heavy oil

Sale price $144.95 Regular price $279.95In stock
Show 1 ball no longer available at BowlersMart
More bowling balls with the Track Criterion MD Core
Ball Cover First seen
Track Criterion Hybrid Bowling Ball Track Super Response Hybrid HK22C Reactive February 2025

Shop the 1 available balls with this core

Where the Track Criterion MD sits

Each dot is a core in balls we stock. Cores close together roll alike; the cover and layout decide the rest.

DV8 Larceny Core, RG 2.471, diff 0.028DV8 Renegade Core, RG 2.499, diff 0.040Track I-Core Gen4, RG 2.480, diff 0.053Brunswick Vintage Light Bulb Low RG Core, RG 2.568, diff 0.032Brunswick Dual Centric Core, RG 2.509, diff 0.047Ebonite Big Time Core, RG 2.508, diff 0.054Hammer Stacked LED Core, RG 2.545, diff 0.047Hammer Vindicator Core, RG 2.474, diff 0.053Radical Vexed Variant Asymmetric Core, RG 2.490, diff 0.045Radical Modified Intel Symmetric Core, RG 2.483, diff 0.032Motiv Affliction V2 Core, RG 2.480, diff 0.055900 Global Conduit A.I. Core, RG 2.590, diff 0.050Roto Grip GEM A.I. Core, RG 2.490, diff 0.057Hammer Obsession Tour Core, RG 2.469, diff 0.034Hammer Super Offset Core, RG 2.524, diff 0.053Hammer Gas Mask Core, RG 2.500, diff 0.058Ebonite Turbo Core, RG 2.517, diff 0.040Ebonite Centrex Symmetrical Mass Bias Core, RG 2.466, diff 0.056Motiv Excel Core, RG 2.550, diff 0.030Motiv Detonator Core, RG 2.470, diff 0.055Storm Solarion A.I. Core, RG 2.480, diff 0.054SWAG Insanity Symmetric Core, RG 2.520, diff 0.034SWAG Fusion Core, RG 2.540, diff 0.036SWAG Watcher Symmetric Core, RG 2.510, diff 0.048SWAG Dragon Asymmetric Core, RG 2.490, diff 0.050Motiv Predator V2 Core, RG 2.470, diff 0.054Storm C3 Centripetal Control Core, RG 2.490, diff 0.029Roto Grip Rondure MaxD Core, RG 2.500, diff 0.058Hammer Vibe Core, RG 2.510, diff 0.042Hammer Aftermath Core, RG 2.520, diff 0.052Brunswick Alert Core, RG 2.478, diff 0.037DV8 Collision Core, RG 2.462, diff 0.052Track MC2 Asym Core, RG 2.473, diff 0.046Radical Evil Eye Symmetric Core, RG 2.495, diff 0.046Ebonite Iron Fist V2 Core, RG 2.473, diff 0.053Radical No Doubt Symmetric Core, RG 2.485, diff 0.051Storm Surge Core, RG 2.580, diff 0.024Roto Grip Hyped UP Core, RG 2.500, diff 0.042Roto Grip Morph-Wing Core, RG 2.510, diff 0.051Brunswick Fury Core, RG 2.524, diff 0.038Motiv Sigma Core, RG 2.470, diff 0.047Roto Grip Hustle Core, RG 2.530, diff 0.030900 Global Blast A.I. Core, RG 2.470, diff 0.055900 Global Strobe A.I. Core, RG 2.510, diff 0.052Radical Guru Core, RG 2.503, diff 0.044Track I-CORE 3.0, RG 2.486, diff 0.056Brunswick Infinity Core, RG 2.521, diff 0.051Storm Catalyst A.I. Core, RG 2.480, diff 0.053Hammer Raw Hammer Core, RG 2.537, diff 0.038Storm Atmos A.I. Core, RG 2.530, diff 0.042Storm Booster Core, RG 2.540, diff 0.046Track Shuttle Core, RG 2.480, diff 0.040Brunswick Light Bulb Core, RG 2.524, diff 0.030Radical Sneak Attack Core, RG 2.544, diff 0.036Motiv Gear Core, RG 2.480, diff 0.034Hammer Huntsman Core, RG 2.470, diff 0.050Hammer Super LED Core, RG 2.632, diff 0.034Ebonite Enhanced V2 Core, RG 2.480, diff 0.048DV8 Dualistic Core, RG 2.496, diff 0.045Radical Vexed Asymmetric Core, RG 2.498, diff 0.036Motiv Quadfire Core, RG 2.550, diff 0.043Track Stealth Core, RG 2.482, diff 0.056Brunswick Tiered Hexagon Core, RG 2.540, diff 0.045Columbia 300 Piranha Core, RG 2.554, diff 0.043Storm Torsion A.I. Core, RG 2.470, diff 0.050Storm Element Max A.I. Core, RG 2.470, diff 0.055Storm Radius Core, RG 2.610, diff 0.020Roto Grip Rondure Tour X Core, RG 2.480, diff 0.034SWAG Unreal Core, RG 2.510, diff 0.047SWAG Craze Core, RG 2.520, diff 0.030SWAG Serpent Asymmetric Core, RG 2.510, diff 0.048Radical Torpedo Asymmetric Core, RG 2.480, diff 0.052Motiv Overload Core, RG 2.480, diff 0.050DV8 Duality Core, RG 2.480, diff 0.036Hammer Spheroid Core, RG 2.480, diff 0.048Motiv Apex Predator Core, RG 2.520, diff 0.055Brunswick Danger Zone Core, RG 2.501, diff 0.048Storm RAD-TQ Core, RG 2.560, diff 0.051Storm Velocity Core, RG 2.480, diff 0.051Hammer Modified LED Core, RG 2.586, diff 0.027Epic Spark Core, RG 2.540, diff 0.049Motiv Hadron Dual Density Core, RG 2.500, diff 0.045Track Criterion ID Core, RG 2.496, diff 0.047Brunswick Zone Asymmetric Core, RG 2.478, diff 0.048Ebonite Entity Core, RG 2.515, diff 0.052Roto Grip Rocker A.I. Core, RG 2.480, diff 0.050Motiv Flux Core, RG 2.570, diff 0.015DV8 Mantra Core, RG 2.498, diff 0.047Hammer Gas Mask Low Diff Core, RG 2.500, diff 0.034Roto Grip RST A.I. Core, RG 2.520, diff 0.055Motiv Impulse V2 Core, RG 2.550, diff 0.050SWAG APX V1 Core, RG 2.500, diff 0.042SWAG Judge Core, RG 2.490, diff 0.052900 Global Magna A.I. Core, RG 2.490, diff 0.044Columbia 300 Pulse PowerCOR Core, RG 2.468, diff 0.045Storm Element Tour A.I. Core, RG 2.470, diff 0.035KR Strikeforce Launch Core, RG 2.530, diff 0.047900 Global Ellipse Asymmetric A.I. Core, RG 2.480, diff 0.050Motiv Halogen Core, RG 2.550, diff 0.037Storm C3 A.I. Core, RG 2.480, diff 0.031Motiv Gear APG Core, RG 2.470, diff 0.036Radical Snapshot Symmetric Core, RG 2.523, diff 0.050Hammer High Rev Offset Core, RG 2.489, diff 0.053Hammer Huntsman Tour Core, RG 2.472, diff 0.036Hammer LED Core, RG 2.650, diff 0.015Storm Inverted Fe2 Core, RG 2.570, diff 0.046Storm Capacitor Core, RG 2.570, diff 0.022Storm Velocity A.I. Core, RG 2.470, diff 0.053Storm Atomic Core, RG 2.480, diff 0.053Storm RAD-X Asymmetric Core, RG 2.480, diff 0.054Storm ID A.I. Core, RG 2.510, diff 0.055Hammer FAB Asymmetric Core, RG 2.550, diff 0.051Columbia 300 Shifter Core, RG 2.478, diff 0.050Columbia 300 Ricochet Core, RG 2.488, diff 0.054Roto Grip Defense A.I. Core, RG 2.490, diff 0.053Storm Supercoil Core, RG 2.470, diff 0.053Storm Centripetal HD A.I. Core, RG 2.460, diff 0.056Hammer Modified Infamous Core, RG 2.567, diff 0.049Brunswick Ethos Core, RG 2.480, diff 0.053Hammer Hazmat Core, RG 2.470, diff 0.055Roto Grip Momentous A.I. Core, RG 2.480, diff 0.049Storm Ignition Core, RG 2.490, diff 0.052Brunswick Portal X Core, RG 2.473, diff 0.054Ebonite Emerge Core, RG 2.510, diff 0.053900 Global Meditate LD Symmetric Core, RG 2.560, diff 0.027Columbia 300 Movement Core, RG 2.513, diff 0.053SWAG Executioner Asymmetric Core (pictured: SWAG Executioner Solid Bowling Ball)1Radical Outer Limits Asymmetric Core (pictured: Radical Outer Limits Solid Bowling Ball)2Brunswick Rampart Core (pictured: Brunswick Combat Bowling Ball)3DV8 Unholy Core (pictured: DV8 Heckler Hybrid Bowling Ball)4Radical Katana Core (pictured: Radical Katana Strike Bowling Ball)5Hammer Gauntlet Core (pictured: Hammer Spawn Bowling Ball)6Track Criterion MD Core (pictured: Track Criterion Bowling Ball)EARLY REV-UPMID-LANELATER REV-UPHIGH FLAREMEDIUMLOW FLARE2.442.482.522.562.602.642.680.0100.0200.0300.0400.0500.060RG at 15 lbDifferential at 15 lb← Revs up soonerRevs up later →More flare ↑Less flare ↓

Nearest cores, zoomed in

Hover or tap a dot for that core’s numbers. Click a dot to open its page. Drag to move around when zoomed in. The same RG and differential do not guarantee the same ball motion.

Same family: Track Criterion ID Core

This core 1 Nearest cores Other cores

Nearest cores to the Track Criterion MD Core
Core Brand Shape RG Diff vs this core
SWAG Executioner Solid Bowling Ball1SWAG Executioner Asymmetric CorePictured: SWAG Executioner Solid
 SWAG Asymmetric 2.500 0.051 RG 0.000 · Diff −0.001
Radical Outer Limits Solid Bowling Ball2Radical Outer Limits Asymmetric CorePictured: Radical Outer Limits Solid
 Radical Asymmetric 2.499 0.051 RG −0.001 · Diff −0.001
Brunswick Combat Bowling Ball3Brunswick Rampart CorePictured: Brunswick Combat
 Brunswick Asymmetric 2.502 0.051 RG +0.002 · Diff −0.001
DV8 Heckler Hybrid Bowling Ball4DV8 Unholy CorePictured: DV8 Heckler Hybrid
 DV8 Asymmetric 2.504 0.051 RG +0.004 · Diff −0.001
Radical Katana Strike Bowling Ball5Radical Katana CorePictured: Radical Katana Strike
 Radical Asymmetric 2.500 0.050 RG 0.000 · Diff −0.002
Hammer Spawn Bowling Ball6Hammer Gauntlet CorePictured: Hammer Spawn
 Hammer Asymmetric 2.501 0.050 RG +0.001 · Diff −0.002

Matches use 15 lb RG and differential.

Drilling and tools

Drilling layoutsLayout guides for symmetric and asymmetric ballsDual angle converterTurn a pin to PAP layout into a dual angle layout

Turn on JavaScript to compare with your ball.Balls with the Track Criterion MD Core1 of the 2 balls with the Track Criterion MD Core are in stock at BowlersMart. Same core, different covers: pick the cover for the lanes you bowl on.

From Track’s description

Questions bowlers ask

What is the RG of the Track Criterion MD Core?

At 15 lb the Track Criterion MD Core has an RG of 2.500. Other weights are not in our catalog for this core.

What is the differential of the Track Criterion MD Core?

At 15 lb the differential is 0.052. The mass bias is 0.018.

Which bowling balls use the Track Criterion MD Core?

Track Criterion Bowling Ball, Track Criterion Hybrid Bowling Ball. 1 are in stock now.

How do the Track Criterion MD Core specs change by weight?

Other weights are not in our catalog for this core.

How does the Track Criterion MD Core compare with my ball?

Type the ball you throw into the Compare with your ball box on this page. It shows the RG and differential side by side and saves your bag for every core page.

Sources and method

Specs. Catalog 15 lb figure.

Baseline. The baseline is 265 in-stock, published reactive and urethane balls. Plastic and polyester covers, 2-piece, 3-piece and pancake cores, missing covers and missing RG or differential values are excluded.

Percentiles. Percentiles are the share of baseline balls with a strictly lower or higher value; ties are not counted.

Nearest cores. Nearest cores are ranked by distance on standardized 15 lb RG and differential, with the same symmetric or asymmetric shape preferred among near ties (distance bands of 0.1).

Mass bias. Mass bias is compared among asymmetric balls with numeric mass bias only.

Updated. Catalog and page updated 2026-10-16.

Next lesson

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