Bowling Ball Reaction Chart

Ball size

Hook Length vs Ball Shape

37 balls, each at the middle of its range on both stats. Click a ball for its details.

Y axis

X axis

Range

Every ball is rated on six reaction scales from 1 to 11, usually as a range rather than a single number. The chart plots any two of them against each other, with each ball at the middle of its range on both; the box or whiskers around it show how far the range runs. Balls close together react alike on those two scales.

Flare Potential: How far the ball's track can flare as it rolls, from low to high. More flare keeps bringing fresh cover into contact with the lane, which adds hook and helps on heavier oil.
Ball Shape: How the ball changes direction at the breakpoint: a smooth, arcing turn or a sharp, angular one.
Hook Length: Where down the lane the ball starts to hook: early, mid-lane or late.
Oil Volume: How much oil the ball is made for, from light to heavy.
Pattern Length: The length of oil pattern the ball suits, from short to long.
Lane Condition: The state of the lane the ball suits: fresh oil, transition as the oil moves, or burn, once the front of the lane has dried out.

To line balls up on a single scale, use the Arsenal Ladder; to find the balls closest to one ball on all six, the Look-alikes.

Reaction ratings: 37 balls

Reaction ratings
Ball	Flare Potential	Ball Shape	Hook Length	Oil Volume	Pattern Length	Lane Condition
900 Global Portal	10	8-10	8-11	2-6	4-9	7-10
900 Global Vengeance	9	4-5	3-5	8-10	7-10	1-3
900 Global Vengeance Returns	9	4-6	5-6	6-8	4-6	3-5
900 Global Viking Conquest	10	2-3	3-4	9-11	8-10	1-3
Roto Grip Gremlin	11	7-9	8-10	5-9	5-9	5-9
Roto Grip Gremlin Tour-X	6	2-4	3-5	3-7	4-8	2-6
Roto Grip Hyped Up!	8	3-4	4-6	5-7	3-6	3-5
Roto Grip Perfect Gem	11	1-4	1-3	8-11	7-11	1-4
Roto Grip RST Hyperdrive Pearl	10	9	8-10	6-8	7-9	5-7
Roto Grip Transform Pearl	10	8-9	8-9	7-9	7-10	5-8
Roto Grip Transformer	10	7-8	6-7	6-9	6-9	2-5
Roto Grip Wicked Gremlin	11	1-3	3-5	8-10	6-9	1-4
Storm !Q Tour 78/U	5	1	1	8-11	1-4	1-3
Storm !Q Tour Edition	5	4	5-7	3-9	2-10	2-9
Storm !Q Tour Sapphire	5	7-8	6-9	2-5	4-8	6-10
Storm Alpha Crux	10	4-5	3-4	8-10	7-9	2-3
Storm Bionic	10	5-6	6-7	7-8	7-8	3-5
Storm Concept	4	2-4	2-6	5-10	2-7	2-7
Storm Equinox Hybrid	10	7-9	5-8	4-9	4-9	4-8
Storm Equinox Solid	10	7	6-7	6-8	5-8	2-5
Storm Hy-Road	9	9	9-10	1-3	5-7	9-10
Storm Identity	10	10	9-10	6-8	6-9	5-8
Storm Identity B/C/P	10	10	9-10	6-8	6-9	5-8
Storm Ion Max	10	5	2-3	10-11	9-10	1-2
Storm Ion Max Pearl	10	5-7	5-7	6-8	6-8	3-7
Storm Ion Pro Pearl	7	7-10	7-10	2-7	4-9	5-11
Storm Ion Pro Solid	7	4-6	5-8	3-7	2-8	4-9
Storm Monsoon	8	4-6	6-8	5-7	6-8	3-5
Storm Next Factor	10	10-11	9-10	3-5	4-5	7-9
Storm Norm Duke Clear	3	1	11	1	1	11
Storm Phaze II	10	4	4-5	7-9	7-9	1-4
Storm Phaze II Pearl	10	6-7	8-9	5-7	6-7	5-7
Storm Pitch Black	4	1	1	7-11	1-5	1-2
Storm Rocket A.I.	9	8-9	8-9	3-6	4-7	6-9
Storm Tropical Surge Black-Blue-Pink	3	6	10-11	1-2	3-9	10-11
Storm Tropical Surge Silver-Purple	3	6	10-11	1-2	4-8	10-11
Storm Typhoon	7	9-10	10	1-3	4-6	9-11