1999-2001 Basketball Mechanic Changes

1
National Federation of State High School
Associations BASKETBALL THREE OFFICIALS
MECHANICS

2
Three-Person Mechanics

• Terminology
• Pregame
• Jump Ball
• Areas of Coverage
• Rotations
• Throw-ins

• Fouls Switching
• Free Throws
• Time-outs Intermission
• Last Second Shot

3
Terminology

• Close Down
• Ball Side
• Strong Side
• Weak Side
• Tableside
• Opposite Side

• Rotation
• Switch
• L Official
• C Official
• T Official

4
Pregame Positions

• U1 observes home team warm-up
• U2 observes visiting team warm-up

5
Jump Ball

• U1 chops clock, watches jumpers
• U2 watches eight non-jumpers
• U1 U2 mindful of quick 3-pt attempt and
  over/back

6
Jump Ball
Ball goes right
Ball goes left

• R always goes into T position

7
Primary Coverage Areas

• Both C and T should close down on shots.

8
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

9
Inbounds Coverage
10
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

12
Shot Rebound Coverage
13
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 officials good
  signal

14
Rotation Sequence

• L goes to ball-side, T closes down, C completes
  rotation (last to rotate)

15
Rotation Cues

• L dictates rotation (dont stay in lane)
• Better to have two Cs than two Ts (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

16
Transition Coverage After Rotation
17
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)

18
End Line Throw-Ins in the Frontcourt

• L may administer throw-ins on either side of
  player when staying in frontcourt

19
Sideline Throw-Ins in the Backcourt

• T handles all throw-ins in the backcourt,
  regardless of location (bump and run, if
  necessary)

20
End Line Throw-Ins in the Backcourt

• If no pressure, C and L may go to home locations.

21
Press Coverage

• C stays in backcourt
• L should have deepest player in front and boxed-in

22
Foul Reporting
23
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

24
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

25
Disqualification Procedure

• New table side (Center or Trail) official
• notifies coach
• requests timer to begin 30-second replacement
  interval
• notifies disqualified player

26
Disqualification Procedure

1. Officials not administering disqualification
   position for subsequent throw-in or free throw
2. Administering official takes a position on
   division line half way between center circle and
   sideline nearest table to administer substitution

27
Foul Reporting Switching
Staying in the frontcourt

• Important for all officials to designate throw-in
  spot

28
Foul Reporting Switching
Backcourt to frontcourt - no free throws

• L calls foul opposite, reports and returns to
  administer throw-in as new T
• Old T becomes new L
• C remains C

29
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

30
Free Throws

• Calling official becomes T
• L administers all free throws
• C and T should close down on last shot attempt

31
Time-outs Intermissions
32
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 pre-game)

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QUESTIONS?