National Federation of State High School Associations
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National Federation of State High School Associations BASKETBALL THREE OFFICIALS’ MECHANICS. Three-Person Mechanics. Terminology Pregame Jump Ball Areas of Coverage Rotations Throw-ins. Fouls & Switching Free Throws Time-outs & Intermission Last Second Shot. Terminology. Rotation

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National Federation of State High School Associations

BASKETBALL

THREE OFFICIALS’ MECHANICS


Three person mechanics
Three-Person Mechanics

  • Terminology

  • Pregame

  • Jump Ball

  • Areas of Coverage

  • Rotations

  • Throw-ins

  • Fouls & Switching

  • Free Throws

  • Time-outs & Intermission

  • Last Second Shot

NFHS Three Officials' Mechanics


Terminology
Terminology

  • Rotation

  • Switch

  • L Official

  • C Official

  • T Official

  • Close Down

  • Ball Side

  • Strong Side

  • Weak Side

  • Tableside

  • Opposite Side

NFHS Three Officials' Mechanics


Pregame positions
Pregame Positions

  • U1 observes home team warm-up

  • U2 observes visiting team warm-up

NFHS Three Officials' Mechanics


Jump ball
Jump Ball

  • U1 chops clock, watches jumpers

  • U2 watches eight non-jumpers

  • U1 & U2 mindful of quick 3-pt attempt and over/back

NFHS Three Officials' Mechanics


Jump ball1
Jump Ball

Ball goes right

Ball goes left

  • R always goes into T position

NFHS Three Officials' Mechanics


Primary coverage areas
Primary Coverage Areas

  • Both C and T should close down on shots.

NFHS Three Officials' Mechanics


Line coverage
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

NFHS Three Officials' Mechanics


Inbounds coverage
Inbounds Coverage

NFHS Three Officials' Mechanics


Coverage on transition
Coverage on Transition

NFHS Three Officials' Mechanics


Shot rebound coverage
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

NFHS Three Officials' Mechanics


Shot rebound coverage1
Shot & Rebound Coverage

NFHS Three Officials' Mechanics


Three point shot coverage
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

NFHS Three Officials' Mechanics


Rotation sequence
Rotation Sequence

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

NFHS Three Officials' Mechanics


Rotation cues
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

NFHS Three Officials' Mechanics


Transition coverage after rotation
Transition Coverage After Rotation

NFHS Three Officials' Mechanics


Throw in cues
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)

NFHS Three Officials' Mechanics


End line throw ins in the frontcourt
End Line Throw-Ins in the Frontcourt

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

NFHS Three Officials' Mechanics


Sideline throw ins in the backcourt
Sideline Throw-Ins in the Backcourt

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

NFHS Three Officials' Mechanics


End line throw ins in the backcourt
End Line Throw-Ins in the Backcourt

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

NFHS Three Officials' Mechanics


Press coverage
Press Coverage

  • C stays in backcourt

  • L should have deepest player in front and boxed-in

NFHS Three Officials' Mechanics


Foul reporting
Foul Reporting

NFHS Three Officials' Mechanics


Fouls basic switching
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

NFHS Three Officials' Mechanics


Fouls basic switching1
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

NFHS Three Officials' Mechanics


Disqualification procedure
Disqualification Procedure

  • New table side (Center or Trail) official:

    • notifies coach

    • requests timer to begin 30-second replacement interval

    • notifies disqualified player

NFHS Three Officials' Mechanics


Disqualification procedure1
Disqualification Procedure

Officials not administering disqualification position for subsequent throw-in or free throw

Administering official takes a position on division line half way between center circle and sideline nearest table to administer substitution

NFHS Three Officials' Mechanics


Foul reporting switching
Foul Reporting & Switching

Stayingin the frontcourt

  • Important for all officials to designate throw-in spot

NFHS Three Officials' Mechanics


Foul reporting switching1
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

NFHS Three Officials' Mechanics


Foul reporting switching2
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

NFHS Three Officials' Mechanics


Free throws
Free Throws

  • Calling official becomes T

  • L administers all free throws

  • C and T should close down on last shot attempt

NFHS Three Officials' Mechanics


Time outs intermissions
Time-outs & Intermissions

NFHS Three Officials' Mechanics


Last second shot
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)

NFHS Three Officials' Mechanics



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