I always go through a good stretching routine prior to practice bowling. This
includes a few knee bends, as well as stretching of the legs and arm muscles.
My first practice balls are thrown relatively slow, with little attempt to increase
the speed of the ball until my body is ready. The last few practice shots
are used to find a line to the pocket. By slowly increasing your ball speed
during practice, you’ll avoid overextending your body, and thus avoid errant
shots in the opening frames of competition.

Tournament managers are not required to recognize separate left-handed and
right-handed averages by bowlers who use each hand not even if a bowler
purchases separate membership cards. If a local association breaks with
policy and sells an individual two cards, the USBC will issue a refund for one
of the cards. The bottom line: To tournament managers—and—the the USBC
a bowler who establishes separate right-handed and left-handed averages still
is considered an INDIVIDUAL, and the higher average will be used for handicap-
ping purposes.