Rule Differences

The main FIBA, NBA and NCAA rule differences are summarised in the following table:

Rule
FIBA
NBA
NCAA
Playing time

4x10 minutes

5 minutes over-time (OT)

4x12 minutes

5 minutes over-time

2x20 minutes

5 minutes over-time

Shot clock

24 seconds

After offensive rebound: 14 seconds

24 seconds

Men: 35 seconds

Women: 30 seconds

3-point line
6.75m (6.60 on baseline) 7.24m (6.70m on baseline)

Men: 6.25m

Women: 6.325m

Time-outs

2 in first half

3 in second half (but only 2 in last two minutes of the 4th period)

1 per OT period

Always 60 seconds

Never carried over

6 regular

2 per OT period

= 60 or 100 seconds

+ 1 short time-out (20 seconds) per half

The second short time-out can be carried over to OT period

!!! additional regulations

4 regular

30 seconds

+  long

60 seconds

Maximum 3 regular and 1 long in second half

!!! additional regulations

Jump ball and alternating possession

Jump ball to star game

The one losing initial jump ball gets possession for the next jump ball situation

Alternating possession between teams thereafter for all jump ball situations

Jump ball to star game

The one losing initial jump ball gets possession to start 2nd and 4th quarters

The one winning initial jump ball gets possession to start 3rd quarter

All other jump ball situations played as "real jump ball"

 

 

Jump ball to star game

The one losing initial jump ball gets possession for the next jump ball situation

Alternating possession between teams thereafter for all jump ball situations

Jump ball to start OT

Individual foul
Foul out on 5 (personal and technical) Foul out on 6 or 2 technical Foul out on 5 (personal and technical)
Team fouls and bonus free-throws

2 free-throws awarded for each (non-shooting) foul after the 4th period (includes player technical fouls)

Does not include offensive fouls/fouls by team in possession

2 free-throws awarded for each foul after the 4th team foul or last two minutes of each quarter, whichever comes first

Does not include offensive fouls and technical fouls

1 free throw, plus another if the first is successful is awarded on the 7th, 8th and 9th foul of each half; the penalty is increased to two shots on the 10th and subsequent fouls; overtime is an extension of the second half.

Does not include offensive fouls

Technical foul
(penalty)
1 free throw and possession of the ball at centre 1 free throw per technical foul; play resumes at the point of interruption; foul is charged to individual in question (and automatic fine assessed) 2 free throws, play resumes at point of interruption
Goaltending/basket interference
No blocking a ball in downward flight towards the rim.

Once the ball strikes the rim, any player can play the ball (i.e. swat it away or tap it in)
No blocking a ball in downward flight towards the rim.

An imaginary cylinder exists that has the basket as its base. Touching the ball while any part of it is in this cylinder (and still has a chance to go in) is a violation
No blocking a ball in downward flight towards the rim.

An imaginary cylinder exists that has the basket as its base. Touching the ball while any part of it is in this cylinder (and still has a chance to go in) is a violation.
Zone defense
Legal Legal but…
defensive player may not stay in the lane (a.k.a. key, restricted area) for longer than three seconds if he is not actively guarding an opponent
Legal
Player numbers
00, 0, 1-99 Any one or two digit number 00 (or 0), 1-5, 10-15, 20-25, 30-35, 40-45, 50-55