Bowling Ball Oil Tracks .pdf

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Original filename: Bowling Ball Oil Tracks.pdf
Title: Bowling Ball Oil Track Patterns

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Bowling Ball Tracks
A bowling ball rolled down the lane will come back with a line of oil round it - this is your ball
track and the pattern it makes is useful information as to what kind of bowler you are, how you
should get your equipment drilled and prepared to cope best on a range of conditions.
We will explain here the difference between these tracks and show how they evolve into the complex flare patterns of
todays reactive balls. Armed with the knowledge of what your ball track means you can choose and prepare your
equipment so you struggle less on certain oiling conditions.

Bowling Ball Track Pictures
A ball rolled end-over-end straight down the lane will probably have a track between the two finger holes and over the
thumb: this ball would make a noise going down the lane - as it rolls over the holes - we would call it a "thumper". But
once you develop a certain level of skill your release can impart rotational energy on the ball to create hook or spin.
Just by looking at the oil track we can tell what kind of bowler you are, what your hand does at the moment of
release, how your ball will react on different lane conditions and, by implication, where you will find it difficult to score
on certain conditions.
These pictures are for right handed bowler - reverse them for a left hander.
This is the most-usual track for
hook bowlers today, with the track
being just to the side of the fingers
and thumb. Because the ball is not
rolling over the middle of the ball it
is "tilted" a little as it rolls and
impacts with the pins. This tilt
creates extra mix as it sends the
pins in a more horizontal direction, into each other. This
style is used by strokers and can be used with moderate
to high revs for more hook potential.

Many bowlers, trying to achieve more
hook will mistakingly overturn the wrist:
this has the effect of creating more axistilt - the ball spins more than rolls and
the track is reduced in size. A smaller
track means there is less of the ball
surface in contact with the lane, which
means less friction and accordingly less
hook. This style will find it very hard to score on heavy oil
conditions and need to use dull surface aggressive balls.
Carried to the extreme, though, it develops into what we call
a "helicopter" ball and is capable of averaging 200+ on any
lane condition.

Modern balls (since the mid-1990's)
have introduced the concept of
"dynamic imbalance" which means
the ball moves off it's initial track
and migrates to a new track with
each roll of the ball. This means
that more of the dry surface of the
ball touches the lane for increased
hook potential. Extra hook means it can be difficult to
achieve consistent reaction so there is a balance
between control and power: you can often hear
crankers complain the lane is "dry" while the low track
bowler may say there is too much oil!

Backup Ball


This style was successful in the past,
but is generally not seen as often with
modern lanes and equipment. It is
characterised by the track going
between the fingers and thumb. If you
measure the length of this track you will
find it is equal to, or very close to, the
circumference of the ball (27 inches).
Generally a full-roller style will have only moderate revs and
medium hook.

A bowler capable of generating high
revs by getting the thumb out and
keeping the fingers in the ball can
generated an inverted track. This is
not seen that often.

A right handed hook bowler will hook the
ball from the right to left, into the pins.
A backup bowler has a "reverse" hook,
laying the ball down with reduced revs in
the middle of the lane letting it fade right
into the pocket. More ladies than men
use the backup style and if delivered
with slow speed it can hook significantly.


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