When I go to the basket and jump, the other guy jumps up and knocks me back, is it a foul?

Generally speaking, basketball is offensive in favor of offense, that is, in the rules of the game, it is conducive to offense.

In the offense, to judge whether the defender has committed a foul, in addition to the direct big hand or obvious intentional foul, other reasonable judgments are judged by the person's cylinder space, when you jump to the basket, you have your own cylinder space, and the defender also has your own cylinder space, when both of your bodies are moving in your own space, even if there is physical contact, it is not a foul. When a defender touches an attacker beyond the space of his cylinder, the defender is deemed to have committed a foul.

The description of your situation is not very clear, so it is impossible to determine. But generally, it is to protect the attacker, and in non-professional basketball, he can be counted as a foul.

You don't have to think about it, you have to do it, theoretically you don't have physical contact with basketball... Especially in the air, so definitely a foul.

Of course he fouled! If you don't score, you will make two free throws, and if you score, it will be 2+1. If he's in a bad mood, you can also blow him for a technical foul.

There is generally no physical contact when taking off the block, and a contact is basically a foul, and it is generally only a cap ball to avoid body contact.

It must be a foul if you hit you, and if you cover the cap, it depends on how the referee blows it, it must be visual induction.

If that guy jumps too, it has to be a foul.

Physical contact after a layup is generally a foul.

An air charge counts as a foul on a defender.

It depends, if you haven't made a shot, it's a foul, and if you do, it's not a foul.

Under normal circumstances, the average physical confrontation in the air does not blow fouls. But sometimes the referee is biased. If a player has an intrusive action such as hitting an arm or pressing a shoulder in the air, he will be blown up and fouled.

Jumping action: However, the principle of vertical jumping must be observed by both the offensive and defensive sides. If the opposing player is close to the opposing player before the jump, in an attempt to affect or prevent the opposing team member from taking off normally, or the jumping player is tilted forward, backward, left or right, and collides with the opposing player who has occupied a reasonable position; Or use your hands to push the opposing player to a position that is not conducive to grabbing the ball and then jump on his own; or jump with your hands or arms on top of the opposing team; or pressing on the opposing player after jumping to grab or catch the ball, etc., are all offensive fouls during the take-off.

He fouled. If you go to the basket and he's already on his feet and you collide, you're fouled. If you go to the basket and he's still moving on both feet and doesn't stand, a collision is a foul.

The moment your body touches, the defender's foot moves to block, and the defender's foot doesn't move and hits the spot, it's an offensive foul.

Count as a foul. Usually the game is blown, but street basketball is rare, unless it is very intense.

If it's in a reasonable collision zone, it doesn't count, if not, it depends on the referee's penalty scale, but in general, the attacker has a cylinder of his own, and if the opponent violates it, it is a foul.

This has to be analyzed on a case-by-case basis, the key is whether you jump or not? Layups? Or is it a fight for rebounds?

If you shoot a jump shot on the spot, and he rushes over and jumps and hits you, of course it's a foul; How you are in the layup, the opponent rushes to your running route and collides with you, it is also a foul, if the two of you go to rush over to grab the ball together, it should not be a foul, provided that everyone is rushing to the ball.

It depends on the specific situation, if it's serious, it's a foul, if it's not serious, it's a foul if it's a hit, if it's very serious, it's a technical foul, anyway, the NBA is like this, and the CBA doesn't know.

"Split dunk" can also be judged as an offensive foul, this premise is that the defender must have a standing position in advance, the feet are not moving, and not within the reasonable collision zone, then the offensive foul must be awarded! Otherwise, the offense is effective and no fouls! "Layups with one person" is the same principle!

It depends on whether the defender is standing, if not, the dunk is not a foul, and it may also blow a defensive foul; If the defender stands still, it's an offensive foul. Layups are the same as the former.

Alternate dunks are generally within the reasonable collision zone. And the layup between people is generally outside of take.

Even if it's not a dunk, the two of them bump into each other is a good chance of a defensive foul, and only if you stand in position in advance and collide head-on with the attacking team is an offensive foul! Therefore, if two people collide and one falls to the ground, or both of them fall to the ground, 70% of them are defensive fouls!

It was a matter of continuity of action, when you dunked, your feet off the ground and hit a defender, and it was a defensive foul on the defender!

The layup, which will generally knock down the defender in the process of running, has few opportunities for the foot to leave the ground, and the referee will blow the whistle when he sees that your movements are not coherent enough, saying that he is hitting someone with the ball!

You've also said that the action should be done "in one go"!

The determination of hitting a person with the ball is related to the defender's landing time (whether the route is predicted in advance), the defensive posture (whether there is any infringement on the cylinder range of the ball holder), and the ball carrier's movement (whether there is a shoulder sink).

In the NBA, due to the introduction of a reasonable collision zone (i.e., the small half circle under the basket), any excessive physical impact in the reasonable collision zone is considered a blocking foul.

Know that you're talking about dunking the ball in while hitting someone. That is, the attacker is in the air, and the defender is also in the air. Then a defensive foul can be awarded, or no judgment can be made.

because the defending team should be on the ground with both feet in order to be in a reasonable area; No, because the ball is scored, it is advantageous to attack. (Of course, it also depends on the actions of the defender and the attacker.) There is also the case where the defender's feet are on the ground, which is generally an offensive foul.

(Of course, it also depends on the actions of the defender and the attacker.) To sum up, "man dunk" and "man dunk" are mainly to determine whether the defender first occupies a reasonable position and whether the defensive posture is in accordance with the rules. Of course, there is a reasonable collision zone in the NBA that is not in the case of offensive fouls.

This question is a bit difficult, not that professionals can't explain it, there should be a reasonable collision zone.

"Separate dunks" such awesome things have been done, if I were the referee, I wouldn't give him a foul, if he has the right to add points, I will give him extra points.

What you said is too general, landlord, I will roughly divide the situation:

1. Step after receiving the pass. It is very common in the game, receiving the pass from a teammate while moving, there will be an adjustment step, and there is often a small step (a small jump step with both feet together) to control the center of gravity of the body, and then choose to dribble, pass, and shoot, which is a normal action and will not be violated, and there will be n times in every NBA game.

2. Step after the dribble. After the high-speed dribble moves, in order to control the center of gravity of a small step (a small jump step with both feet together), the jump stop jump shot is one of the most basic jump shooting techniques. There will be no violation.

3. Step after standing with the ball. When holding the ball and standing firmly with both feet, only one foot can be selected as the pivot foot and cannot be changed, and the other foot can be moved at will.

Walking is a violation, and after receiving the ball, you have to shoot the ball twice anyway to move the pivot foot.

You can take 2 steps or jump 1 step when you don't catch the ball, so many fast breaks have 2 steps to catch the ball and dribble down to 3 steps to get to the basket or catch the ball to jump 1 step to shoot, of course, you must be able to do that when you receive the ball and hold the ball.

It should be counted, you are equivalent to not dribbling, and if you step backwards and shoot again, it should be counted as walking.

After taking a step after receiving the ball, if you jump up and throw blue, your feet off the ground, you will walk.

Jumping a step while receiving the ball does not count, and jumping a step after receiving the ball counts as a foul.

If you hit the ground with your foot first, and then you make another shot, then it's a foul.

Otherwise, there is no foul.

The moment you jump to the moment you hit the ground, if the ball is out of your hand, it doesn't count.

Look at your shot and jump.

Jumping doesn't count.

If the shot is not a jump, it is not a rule.

If you foul it, it's (a jump) that is, a walk.