Transcript 1999-2001 Basketball Mechanic Changes

National Federation of
State High School
Associations
BASKETBALL
THREE OFFICIALS’
MECHANICS
Three-Person
Mechanics
•
•
•
•
Terminology
Pregame
Jump Ball
Areas of
Coverage
• Rotations
• Throw-ins
July, 2005
• Fouls &
Switching
• Free Throws
• Time-outs &
Intermission
• Last Second Shot
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Terminology
• Rotation
• Switch
• L Official
• C Official
• T Official
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• Close Down
• Ball Side
• Strong Side
• Weak Side
• Tableside
• Opposite Side
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Pregame Positions
 U1 observes
home team
warm-up
 U2 observes
visiting team
warm-up
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Jump Ball
U1 chops clock,
watches jumpers
U2 watches
eight nonjumpers
U1 & U2 mindful
of quick 3-pt
attempt and
over/back
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Jump Ball
Ball goes left
Ball goes right
 R always goes into T position
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Primary Coverage
Areas
 Both C and T
should close
down on shots.
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Line Coverage
Lead has entire
end line
C has closest
sideline
T has closest
sideline, division
line, and far end
line
Call only your line
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Inbounds Coverage
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Coverage on Transition
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Shot & Rebound
Coverage
Lead should not be
positioned within
lane lines
Both C and T should
close down on shots
C is primarily
responsible for
weak side
rebounding
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Shot & Rebound
Coverage
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Three-Point Shot
Coverage
If both C and T
indicate the 3-pt
attempt, T should
referee the defense
on the shooter and
stay with the shot; C
should release and
cover rebounding
C/T should mirror the
other official’s “good”
signal
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Rotation Sequence
 L goes to ball-side, T closes down, C completes rotation
(last to rotate)
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Rotation Cues
L dictates rotation (don’t stay in lane)
Better to have two C’s than two T’s (this is
why C is last to rotate)
L must officiate play in the post, even while
moving across the lane
If the L begins to rotate and the ball is
quickly reversed or a quick shot is taken,
the L does not have to complete the
rotation
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Transition Coverage
After Rotation
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Throw-In Cues
L may administer throw-ins on either side
of player when staying in frontcourt
T handles all throw-ins in the backcourt,
regardless of location (“bump and run,” if
necessary)
T may bounce any sideline or end line
throw-in (may depend on defensive
pressure)
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End Line Throw-Ins
in the Frontcourt
L may administer throw-ins on either side
of player when staying in frontcourt
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Sideline Throw-Ins
in the Backcourt
T handles all throw-ins in the backcourt,
regardless of location (“bump and run,” if
necessary)
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End Line Throw-Ins
in the Backcourt
If no pressure, C and L may go to home
locations.
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Press Coverage
C stays in
backcourt
 L should
have
deepest
player in
front and
boxed-in
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Foul Reporting
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Fouls & Basic
Switching
Non-calling officials should observe
all players
Calling official goes table side after
reporting
Official originally table side fills the
vacancy left by the calling official
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Fouls & Basic
Switching
Third official remains in the same
position occupied at time of foul
If calling official was table side, no
switch occurs
No long switch on fouls called in the
backcourt without free throws
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Disqualification
Procedure
1. New table side (Center or Trail)
official:
 notifies coach
 requests timer to begin 30-second
replacement interval
 notifies disqualified player
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Disqualification
Procedure
2. Officials not administering
disqualification position for subsequent
throw-in or free throw
3. Administering official takes a position
on division line half way between
center circle and sideline nearest table
to administer substitution
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Foul Reporting & Switching
Staying in the frontcourt
Important for all officials to designate
throw-in spot
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Foul Reporting & Switching
Backcourt to frontcourt no free throws
L calls foul
opposite, reports
and returns to
administer throwin as new T
Old T becomes
new L
C remains C
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Foul Reporting & Switching
Backcourt to frontcourt no free throws
C calls foul, reports
and slides down to
become new L
Old T becomes new
C
L goes to sideline to
administer throw-in
and becomes new T
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Free Throws
Calling official
becomes T
L administers all
free throws
C and T should
close down on last
shot attempt
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Time-outs &
Intermissions
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Last Second Shot
C or T – Opposite table official is
responsible
L may need to offer assistance or be
responsible if on fast break
Responsible official should communicate
with partners that he/she has the last
second shot (discussed during pregame)
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QUESTIONS?