Basketball · Official Basketball Rules
Law 23: Player and Ball Out-of-Bounds
2 parts · 2 tests · 20 facts · updated 22 October 2026 · markdown
When a player or the ball is out of bounds, who caused it, and a held ball at the line.
23.231Out of Bounds
Players and the ball touching the line, people and objects out of bounds.
Test 1When a player or the ball is outTake a test
A player is out of bounds when any part of the body touches the floor or an object on or outside the boundary line.
Source: FIBA OBR 2026, Art. 23.1.1 · recall
The rule speaks of the floor or any object other than a player.
Source: FIBA OBR 2026, Art. 23.1.1 · applied
The ball is out when it touches a player or any other person who is out of bounds.
Source: FIBA OBR 2026, Art. 23.1.2 · applied
The ball is out when it touches the backboard supports.
Source: FIBA OBR 2026, Art. 23.1.2 · applied
The ball is out when it touches any object above the court.
Source: FIBA OBR 2026, Art. 23.1.2 · applied
The ball is out when it touches the floor on or outside the boundary line.
Source: FIBA OBR 2026, Art. 23.1.2 · applied
Standing on the line, he is out of bounds, so his touch sends the ball out.
Source: FIBA OBR 2026, Art. 23.2.2 · applied
The back of the backboard is out of bounds.
Source: FIBA OBR 2026, Art. 23.1.2 · applied
Touching the line puts him, and the ball he controls, out of bounds.
Source: FIBA OBR 2026, Art. 23.1, 23.2.2 · applied
A heel on the sideline is contact with the line; leaning over or being in the air after taking off inside is not.
Source: FIBA OBR 2026, Art. 11.1, 23.1.1 · applied
23.232Who Caused It
The last player to touch it, a player on the line, and held balls.
Test 1Who caused it, and held ballsTake a test
The ball is caused to go out by the last player to touch or be touched by it.
Source: FIBA OBR 2026, Art. 23.2.1 · recall
The last player to touch it caused it, even if it goes out by touching something other than a player.
Source: FIBA OBR 2026, Art. 23.2.1 · applied
His feet on the line put him out; the ball he catches is out with him.
Source: FIBA OBR 2026, Art. 23.2.2 · applied
Whoever the ball touched last is the one who caused it.
Source: FIBA OBR 2026, Art. 23.2.1 · applied
If a player moves out of bounds during a held ball, a jump ball situation occurs.
Source: FIBA OBR 2026, Art. 23.2.3 · applied
Either direction, out of bounds or back into the backcourt, turns the held ball into a jump ball situation.
Source: FIBA OBR 2026, Art. 23.2.3 · recall
The ball is dead and the opponents of the team that caused it get a throw-in.
Source: FIBA OBR 2026, Art. 10.3, 22.2, 23 · recall
The last toucher's team loses the ball.
Source: FIBA OBR 2026, Art. 23.2.1 · applied
Out of bounds during a held ball is settled by the arrow.
Source: FIBA OBR 2026, Art. 12.6, 23.2.3 · applied
The back of the backboard is out of bounds; the front, the ring and the net are not.
Source: FIBA OBR 2026, Art. 23.1.2 · applied
Sources
FIBA Official Basketball Rules 2026 (v1.1), Article 23 (paraphrased in original wording; original questions authored from the Rules, not reproduced)
- FIBA OBR 2026, Art. 23.1.26
- FIBA OBR 2026, Art. 23.2.14
- FIBA OBR 2026, Art. 23.1.12
- FIBA OBR 2026, Art. 23.2.22
- FIBA OBR 2026, Art. 23.2.32
- FIBA OBR 2026, Art. 23.1, 23.2.21
- FIBA OBR 2026, Art. 11.1, 23.1.11
- FIBA OBR 2026, Art. 10.3, 22.2, 231
- FIBA OBR 2026, Art. 12.6, 23.2.31