Transcript HS FB Mechanics 4 man

National Federation
4 Person Mechanics Football
IACAO FB Dec. 2005
1
Football Mechanics Criteria
 Communication
Field Positions
Keys & General Mechanics
2
Mechanics – 4 man
 Before Kickoff
After Kickoff
Basic Scrimmage Position
Prior to the Snap
Running Plays
Passing Plays
3
Mechanics 4 man (cont’d)
 Scrimmage Kicks
SK’s - Field Goals & Try Attempts
SK’s – Field Goals & Try Fakes
Goal Line – Inside 10 yard line
Measurements
4
Before Kickoff
LJ
R
Referee
G
10 20 30 40 50 40 30 20 10
G
G
10 20 30 40 50 40 30 20 10
G
Position near R’s
10-yard line
opposite
Linesman
Count R Players
Check other
officials in position
and signal ball
ready for play
after other officials
and kicker ready
U
H
5
Before Kickoff
Umpire
G
10 20 30 40 50 40 30 20 10
G
G
10 20 30 40 50 40 30 20 10
G
Position on R’s 20
yard line opposite
Line Judge
Count R Players
Ensure coaches,
players,
substitutes in
proper location
Hold hand in air to
inform Referee
ready
U
6
Before Kickoff
Linesman
G
10
20
30 40
50
40
30
20
10
G
10 20 30 40 50 40 30 20 10
G
Position on K freekick line
Hand ball to kicker
and point out
Referee. Inform
to wait for ready
for play signal
H
G
Count K Players
Move to sideline
with line-to-gain
equipment and
hold hand in the
air to inform
Referee ready
7
Before Kickoff
Line Judge
G
10
20
30 40
50
40
30
20
10
G
10 20 30 40 50 40 30 20 10
G
Position on R’s Free
Kick line and identity
Move to side line
opposite Linesman
Ensure coaches,
players, substitutes
and others in proper
location
LJ
G
Count K
Hold arm in air to
inform Referee
ready
8
After Kickoff
R
Referee
LJ
G
10
20
30 40
50
40
30
20
10
G
G
10 20 30 40 50 40 30 20 10
G
Deep Kicks, Be
ready to rule on
touchback or player
momentum
Kicks middle or your
side, Start Clock
when kick is
touched (other than
first touching by K)
Pick up runner and
follow until released
to covering official
9
After Kickoff
R
Referee
G
10
20
30 40
50
40
30
20
10
G
G
10 20 30 40 50 40 30 20 10
G
Determine if kick
goes out of bounds
and flag if not
touched by R
Kicks opposite side,
move cautiously
with play
Observe actions
behind play and
clean up
10
After Kickoff
Umpire
G
10
20
30 40
50
40
30
20
10
G
G
10 20 30 40 50 40 30 20 10
G
Kicks your side,
start clock when kick
is touched (other
than first touching
by K)
Pick up runner and
follow until released
to Linesman
Once you release
runner, observe
action behind play
U
H
Maintain
responsibility for you
sideline
11
After Kickoff
Umpire
G
10 20 30 40 50 40 30 20 10
G
G
10 20 30 40 50 40 30 20 10
G
Determine if kick
goes out of bounds
and flag if not
touched by R
Kicks opposite side,
move cautiously
with play
Observe actions
behind play and
clean up
U
12
After Kickoff
Linesman
G
10
20
30 40
50
40
30
20
10
G
G
10 20 30 40 50 40 30 20 10
G
Watch for free-kick
line infractions
Help Line Judge rule
on first touching by
K prior to R’s freekick line and bean
bag in necessary
Watch initial blocks
near R’s free-kick
line and blocks on
kicker / holder
H
Administer fouls
prior to kickoff
13
After Kickoff
Linesman
Kicks to your Side
G
10
20
30 40
50
40
30
20
10
G
G
10 20 30 40 50 40 30 20 10
G
Move down the
sideline to area to
best officiate
depending on kick
keeping spacing
with Umpire
Determine if kick
goes out of bounds
and flag if R has not
touched ball
Pick up
responsibility for
runner from Umpire
and follow to goal
line
U
H
14
After Kickoff
Linesmen
G
10 20 30 40 50 40 30 20 10
G
G
10 20 30 40 50 40 30 20 10
G
Kick Opposite side
Move cautiously
toward play being
ready to rule on your
sideline if play
reverses
Observe action of
player in vicinity of
runner and watch for
fouls away from the
ball
H
Assist Line Judge
with goal line on
long runs
15
After Kickoff
LJ
Line Judge
G
10
20
30 40
50
40
30
20
10
G
G
10 20 30 40 50 40 30 20 10
G
Watch for free-kick
line infractions
Be Alert for first
touching by K prior
to R’s free-kick line
and bean bag if
necessary
16
After Kickoff R
LJ
Line Judge
Kick to your side
G
10
20
30 40
50
40
30
20
10
G
G
10 20 30 40 50 40 30 20 10
G
Move down sideline
while watching for fouls
and to area best to
officiate depending on
the kick, keeping
spacing with Referee
Determine if kick goes
out of bounds and flag
if not touched by R
Pick up responsibility
for the runner from
Referee and follow to
goal line
17
After Kickoff
LJ
Line Judge
G
10 20 30 40 50 40 30 20 10
G
G
10 20 30 40 50 40 30 20 10
G
Kick Opposite Side
Move cautiously
toward play being
ready to rule on your
sideline if play
reverses
Observe action of
player in vicinity of
runner and watch for
fouls away from the
ball
Help Linesman with
goal line on long
runs
18
Basic Scrimmage Position
Referee
A’s backfield 3 to 4
yards behind deepest
back on passing arm
of Quarterback able to
view opposite side
tackle
G
10
20
R 30
20
30
U
Umpire
3 to 8 yards off ball as
to not interfere with
vision or movement of
defensive backs.
G
10
19
Basic Scrimmage Position
LJ
Linesman &
Line Judge
G
10
Start on side line
straddling line-ofscrimmage.
20
R 30
20
30
U
G
10
H
20
Prior to Snap (All Plays)
Referee
Declare ball ready-forplay
G
10
20
R 30
G
10
20
30
Count A players
Responsible for 25
second count
Check players set for
one second prior to
snap.
Watch for snap
infractions, illegal
shifts, and false starts
21
Prior to Snap (All Plays)
Umpire
Vary position as to not
block view of B players
or allow A to use you
as interference
G
10
20
30
20
30
U
Count A Players
Check five players on
line numbered 50 to
79
Be ready to rule on
snap infractions, false
starts, encroachments,
disconcerting signals
by defense and be
aware of B players line
up in free blocking
zone
G
10
22
Prior to Snap (All Plays)
LJ
Linesman &
Line Judge
Check down number
on box and signal
down
G
10
20
30
G
10
20
30
Extend arm back to
indicate A player
closes to you off the
line-of-scrimmage
Check to see if all
backs, flankers, split
ends in legal position
and check eligibility
Determine if player in
motion movement is
legal
H
23
Prior to Snap (All Plays)
LJ
Linesman &
Line Judge
G
Check for seven on the
line-of-scrimmage
Key off tackle for run /
pass
1 30
2
20
3
4
Help in determining
false start,
encroachment,
interference with snap
Count B players and be
alert for illegal
substitutes
10
5
6
G
10
20
7
30
H
24
Running Play
Referee
Key opposite guard /
tackle
G
10
20
30
R
Responsible for ball
carrier and action
around him to the
neutral zone
G
10
20
30
25
Running Play
Referee
Move behind play
toward side of field
which plays advances
and cover runner until
reaching neutral zone
or if down near line-ofscrimmage
Watch action behind
ball and away from
runner, action on
quarterback, and
backward or forward
passes.
G
10
20
30
R
G
10
20
30
26
Running Play
Referee
When ball is dead,
move to location and
signal next down
G
10
20
30
R
Help relay ball and
assist umpire with spot
If first down, stop clock
and signal
Make sure all officials
ready to go before
signal ball ready for
play
G
10
20
30
27
Running Play
Umpire
Read point of attack
G
10
Watch line play for
illegal action around
ball carrier and in free
blocking zone
Move accordingly
depending play
working inside out
20
30
20
30
U
G
10
Be alert for fumbles
beyond neutral zone
and help determine
who gains possession
After play spot ball
28
Running Play
Linesman
Action toward you
G
10
20
30
G
10
20
30
Work off the field
Observe actions of
linemen your side and
blockers in front of ball
carrier
Pick up responsibility
of ball carrier, mark
forward progress and
stop clock if out of
bounds
Follow runner to goal
line
H
29
Running Play
Linesman
Action away from you
G
10
20
30
G
10
20
30
Move cautiously onto
field ready for reverse
action
Observe action behind
play
Be ready to help with
forward progress spot
or goal line
H
30
Running Play
LJ
Line Judge
Action toward you
G
10
20
30
G
10
20
30
Work off the field
Observe actions of
linemen your side and
blockers in front of ball
carrier
Pick up responsibility
of ball carrier, mark
forward progress and
stop clock if out of
bounds
Follow runner to goal
line
31
Running Play
LJ
Line Judge
Action away from you
G
10
20
30
G
10
20
30
Move cautiously onto
field ready for reverse
action
Observe action behind
play
Be ready to help with
forward progress spot
or goal line
32
Passing Plays
Referee
Key opposite guard /
tackle
G
10
20
3R0
G
10
20
30
Watch blocking
Remain wider and
deeper than passer
After pass released,
verbally alert
defenders and
observe action on
passer not ball
Determine pass
forward or backward
33
Passing Plays
Referee
Sole responsibility for
intentional grounding,
however, can get
assistance from
covering official
G
10
20
R 30
G
10
20
30
Determine if passer
crosses neutral zone
Continue to observe
action behind neutral
zone before leaving
34
Passing Plays
Umpire
Watch for Illegal
contact in free
blocking zone
G
10
20
30
20
30
U
Move to line-ofscrimmage
Observe action of
players in and just
behind neutral zone
G
10
Assist Referee in
determining if forward
pass released beyond
neutral zone
35
Passing Plays
Umpire
Know if ball tipped at
line-of-scrimmage
G
10
20
30
20
30
U
Pivot after pass
crosses neutral zone
and assist on
determining catch or
no catch
G
10
36
Passing Plays
LJ
Linesman &
Line Judge
G
10
20
30
G
10
20
30
Watch initial action off
line for defensive
holding
Move downfield
cautiously on passes
to your side and be
ready to adjust back
for run
Be ready to rule on
pass incomplete /
complete and
interference
H
37
Passing Plays
LJ
Linesman &
Line Judge
If ball intercepted,
observe action until ball is
dead, covering official
stop clock and signal first
down, if inside defensive
5 yard line, be ready to
rule on momentum
If incomplete pass in your
area, sound whistle and
signal
R
G
10
20
30
20
30
U
G
10
Be alert for illegal passes
Rule on touching or
catching by ineligibles
H
38
Scrimmage Kick
Referee
G
Position 3-4 yards in
front of kicker, 5-7
yards wide on Line
Judge side
10
20
30 40
50
40
30
20
10
G
10 20 30 40 50 40 30 20 10
G
R
Be able to see ball
and all backs
Watch for fouls
behind neutral zone
and roughing /
running into kicker
G
Be alert for blocked
kicks and recovery
39
Scrimmage Kick
Referee
G
10
10
G
G
10 20 30 40 50 40 30 20 10
G
After ball crosses
neutral zone,
observe line play
and move down field
slowly
If necessary,
determine if ball was
touched beyond the
neutral zone and by
whom
20
30 40
R
50
40
30
20
Be ready to pick up
runner on long run
and continue with
him to goal line
40
Scrimmage Kick
LJ
Referee
G
10
10
G
G
10 20 30 40 50 40 30 20 10
G
If ball kicked out of
bounds in flight,
assist the covering
official with spot
In no foul, signal
linesmen and lineto-gain equipment
into position for next
play
Make sure all
officials ready prior
to giving ready-forplay signal
20
30 40
R
50
40
30
20
H
41
Scrimmage Kick
Umpire
G
Position 4 to 7 yards
deep, keeping ball in
view
10
20
30 40
50
40
30
20
10
G
10 20 30 40 50 40 30 20 10
G
U
Check numbering
exceptions
After snap, step
toward neutral zone
watching for
possible roughing of
snapper, then shift
to blocking action
G
42
Scrimmage Kick
Umpire
G
Determine if kick
crosses neutral
zone
10 20 30 40 50 40 30 20 10
G
U
Assist Referee with
short or blocked
kicks
Once kick crosses
neutral zone, pivot
and observe blocks
downfield and
players away from
ball
G
10 20 30 40 50 40 30 20 10
G
43
Scrimmage Kick
Lineman
G
10
20
30 40
50
40
30
20
10
G
G
10 20 30 40 50 40 30 20 10
G
Cover kicks to your
side of field
If out of bounds in
flight, move past
were ball went out
and walk forward
until Referee spots
you
Grounded kicks out
of bounds, mark
spot and observe
action
H
44
Scrimmage Kick
Lineman
G
10
20
30 40
50
40
30
20
10
G
G
10 20 30 40 50 40 30 20 10
G
Help Referee with
short or blocked
kicks and note spot
of recovery
Bean bag spot of
first touching and
end of kick
Be ready for fair
catch and blow
whistle only after
kick is secured
H
45
Scrimmage Kick
Lineman
G
10
20
30 40
50
40
30
20
10
G
G
10 20 30 40 50 40 30 20 10
G
Routine kick, move
downfield cautiously
observer action in
front of ball carrier
Move with runner to
your sideline and
follow until goal line
Only move line to
gain equipment
when sure no foul
on play and signaled
by Referee
H
46
Scrimmage Kick
Line Judge
20
30 40
50
LJ
40 30 20
G
10
10
G
G
10 20 30 40 50 40 30 20 10
G
Position 7 to 10
yards in front of
deepest receiver
and in position to
cover sideline
Carry bean bag in
hand
Be ready to rule on
momentum inside 5
yard line
Observe initial
action around
receiver
47
Scrimmage Kick
LJ
Line Judge
G
10
20
30 40
50
40
30
20
10
G
G
10 20 30 40 50 40 30 20 10
G
Drop Bean Bag to
mark end of kick
Maintain
responsibility of ball
carrier on returns up
the middle and to
your side until
released to other
official
48
Scrimmage Kick
LJ
Line Judge
G
10 20 30 40 50 40 30 20 10
G
G
10 20 30 40 50 40 30 20 10
G
If out of bounds in
flight, move past
were ball went out
and walk forward
until Referee spots
you
Grounded kicks out
of bounds, mark
spot and observe
action
Returns to
Linesman side,
move slowly behind
play observe all
action
49
Scrimmage Kick
LJ
Line Judge
G
10
20
30 40
50
40
30
20
10
G
G
10 20 30 40 50 40 30 20 10
G
If K first to touch,
mark spot of first
touching with bean
bag
If fair catch is
signaled, sound
whistle after kick is
complete, and mark
spot
Be ready for muff
50
Field Goal and Try Attempts
Referee
Position 1 yard behind
and 2 to 3 yards to
side of kicker able to
see kicker and holder
G
10
20
30
20
30
Rule on motion of
backs
Be ready for fumble or
fake
After kick, move
behind kicker to Judge
whether ball goes
between uprights
If Try is blocked,
sound whistle, Field
Goal, ball is live
R
G
10
51
Field Goal and Try Attempts
Umpire
Position 5 to 7 yards
deep keeping ball in
view and checking
numbering exceptions
G
10
20
30
10
20
30
U
After snap, step
toward neutral zone
watching for roughing
the snapper
After kick crosses
neutral zone, pivot to
line judge side and
assist with coverage
G
52
Field Goal and Try Attempts
Linesman
Position on line-ofscrimmage
G
10
20
30
G
10
20
30
Watch line play and for
Roughing the Holder
of Kicker
H
53
Field Goal and Try Attempts
Line Judge
Position on line-ofscrimmage
LJ
G
10
20
30
G
10
20
30
Handle same as any
goal line play
After snap, move
towards end line and
determine if ball clears
cross bar
Sound whistle when
ball crosses plane of
end zone
If unsuccessful, signal
no score
If field goal attempt,
signal touchback
54
Field Goal and Try Attempts
Referee
Outside 15 yards
Move to side vacated
by line judge
G
10
20
30
20
30
R
Responsible for kicker
and holder
Cover as scrimmage
kick
G
10
55
Field Goal and Try Attempts
Umpire and
Linesman
G
10
20
30
10
20
30
Outside 15 yards
Cover same as
scrimmage kick
U
G
H
56
Field Goal and Try Attempts
Line Judge
Outside 15 yards
Position under
uprights
Sound whistle when
ball crosses plane of
end zone and rule on
kick
G
10
20
30
G
10
20
30
LJ
If successful signal
score
If unsuccessful, signal
no score and if field
goal attempt, signal
touchback
If field goal does not
cross plane, move to
sideline and handle as
scrimmage kick
57
Goal-Line Plays (Inside 10 yards)
LJ
Referee
Same Coverage as
Running and Passing
Plays
G
10
20
30
20
30
R
U
Umpire
Move up to goal line,
be ready to move to
end line if necessary
on pass
Linesman
G
10
H
Move to goal line and
work back on play
58
Goal-Line Plays (Inside 10 yards)
LJ
All Officials
ONLY signal
Touchdown if you see
ball cross goal line
(primary coverage is
wing officials – U
should communicate
to make sure wing
officials do not have
play over in FOP!)
G
Do NOT mirror signal
G
Communicate on dual
coverage areas
10
20
30
20
30
R
U
10
H
59
Measurement
Line Judge
Align Linesman up
with line and ball
G
Linesman
10
20
U
Walk chains out, place
clip on line and hold
30
LJ
R
Umpire
After Linesman ready,
pull chain
Referee
Hold ball and
determine if ball
across line-to-gain
G
10
20
30
H
60
4 Person Football Mechanics
• Presentation Prepared for the IHSA by:
– Tim Kiefer
• Edited by:
– Octavio Herrera
61