Here is the excerpt of the freestyle rules from the 2009 IJSBA Jet Ski Rules Book:
11.4 FREESTYLE EVENT
11.4.1 Freestyle events are intended to show a rider?s skill and expertise in executing difficult, challenging and creative
maneuvers within a set period of time and scored by a panel of judges. Competing watercraft must meet IJSBA class
specifications. For specific freestyle event rules, refer to Section 14, pg. 55.
Pro Freestyle ONLY: The maximum displacement for Ski Division in freestyle competition is 1200cc. The maximum
displacement for Amateur Freestyle classes is 900cc.
MODIFIED CLASS COMPETITION
Competitors in this class are allowed modifications to gain maximum machine and engine performance. Watercraft
competing in this class must conform to the specifications which follow.
FREESTYLE ADDENDUM: Amateur and Pro Freestyle classes are allowed identical modifications with the
exception that Amateur Freestyle Competitors may compete on PWC with a maximum displacement of 900cc
while Pro Freestyle Competitors may compete on PWC with a maximum displacement of 1200cc.
Freestyle ONLY: Footholds may be installed into the footwells. If the same watercraft is used for racing, the footwells
must be blocked off, allowing no indentation into the footwell sides.
Freestyle ONLY: The top deck of freestyle craft may be modified or aftermarket, providing the following: The top deck
must resemble the original top deck of the homologated watercraft; the length of the top deck must be no less than 165.1
mm (6.5 inches) shorter than the original OEM top deck and the width of top deck must be within 50.8 mm (2.0 in) of the
original component; the craft must function as originally intended. The hull may be no smaller than the minimum
measurements of the top deck. These restrictions also apply to the minimum length of the hull. The front bumper may
add no more than 31.75 mm (1.25 in) to the overall length of the Top Deck for the purposes of meeting the minimum
measurements. Fuel fillers may be relocated internally.
The decision of the Technical Director and/or Race Director regarding modifications will be final. Any question regarding
the legality of modifications should be directed to the IJSBA or IJSBA affiliate prior to use in competition.
14.1 GENERAL FREESTYLE REGULATIONS
14.1.1 The rider will be judged by three to seven persons scoring on a scale of ?1 to 10,? with ?10? being best. There is a twominute
time limit. Other times may be used, but must be approved by the IJSBA and will be announced to competitors
during the riders meeting.
14.1.2 Maneuvers, tricks or stunts that may create a hazard to the rider, spectators, pit crew or officials must be approved in
advance by the Race Director.
14.1.3 Only one person per watercraft during competition. Only one homologated watercraft may be used during competition.
Freestyle competitors may compete on Stock, Limited, Superstock or Modified watercraft.
14.1.4 Riders competing in freestyle should draw for their starting order prior to the event.
14.1.5 Each freestyle rider must signify the start of his or her routine with a wave of the hand over his/her head.
14.1.6 A freestyle routine of greater difficulty with minimal mistakes will be scored higher than a routine of lesser difficulty with
fewer or no mistakes.
14.1.7 Each freestyle rider should finish as close to the time limit as possible.
14.1.8 No score or points will be awarded to freestyle routines that are less than one minute in length.
14.1.9 The judges will award a score of at least ?6? if the full two-minute freestyle routine has been completed.
14.1.10 In the case of a tie for first place, each competitor in the tie will perform a one-minute routine. Ties for all other positions
will be broken by re-adding the high and low scores that may have been thrown out to calculate their original total score. If
no high and low scores were thrown out to calculate the original total score, the highest single score will be used to break
the tie. If still tied, the next highest individual score will be used and so on. If still tied, the riders will then perform a oneminute
routine.
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