What Is the 45 Rule in Padel?

Padel rules · Corner bounce · Club-level judgement

The 45 rule in padel is a guideline for judging a corner bounce — when the ball hits the junction where the floor meets the glass. If the ball rebounds upward at more than 45 degrees, it is judged to have hit the floor first and the point continues. If it skims low at less than 45 degrees, it likely hit the glass first and is called out.

It is not an official FIP rule. You will not find it written in the formal laws of padel. It is a widely used informal convention — sometimes called the bola huevo (egg ball) in Spanish — that gives players a practical way to judge a disputed corner bounce without a referee.

What the 45 rule actually judges

In padel, after the ball bounces in the opponent's court, it can legally rebound off the back glass or side glass and remain in play. The problem comes in the corners — the tight angle where the floor meets the glass. When a ball hits there at speed, it can be genuinely hard to tell which surface it contacted first.

That is exactly what the 45 rule addresses. The question is simple: did the ball hit the floor first, or did it hit the glass first?

  • Floor first (IN): the ball bounces upward at a steep angle (above 45 degrees). The floor contact propels it upward into the court. Point continues.
  • Glass first (OUT): the ball skims low and crawls up the glass (below 45 degrees). The glass contact keeps it low and pressed against the surface. Point to the opposition.

The 45-degree angle is the dividing line. A ball going up steeply = floor first = good. A ball staying low and tight = glass first = out.

Why it matters on court

Corner bounce situations happen most often after a deep lob or a smash that bounces near the back glass. They are genuinely fast and hard to judge, especially in social play without a referee. The 45 rule gives both pairs a shared reference point so you can make a call without arguing for five minutes.

In Spanish club culture, this ball is called the bola huevo — the egg ball — because the impact in the corner looks like an egg shape, reflecting how the ball simultaneously touches two surfaces.

Is the 45 rule an official padel rule?

No. The 45 rule is not in the FIP (International Padel Federation) official rules. The formal rules describe what constitutes a valid bounce and when the glass can be used, but they do not define a specific angle for judging corner contacts.

In professional play, a referee makes the call. In club and social play, the 45 rule is the informal convention that most experienced players use to judge the same situation.

How to use the 45 rule when calling a point

The practical approach on court:

  1. Watch the angle the ball takes after the corner contact.
  2. If it shoots upward sharply — above 45 degrees, like a ball that genuinely bounced — call it good.
  3. If it stays low and skims along the glass — below 45 degrees, almost crawling — call it out.
  4. If genuinely unclear, the convention in most clubs is to replay the point rather than argue.

Common situations where the 45 rule comes up

  • A lob lands deep near the back corner and hits the angle between floor and back glass
  • A smash bounces and hits the side glass junction at speed
  • A defensive shot from the back wall clips the floor-glass corner on the way out

These are the moments where a clear shared reference stops disputes. The 45 rule gives you a consistent, visual way to make the call — which is why it has become the standard informal guideline in clubs across the UK, Spain and the rest of Europe.

The 45 rule vs the diagonal angle — what is the difference?

Some players confuse the 45 rule with advice about playing at diagonal angles — hitting the ball cross-court at around 45 degrees to move the opponent. That is a real tactical idea in padel, but it is a completely separate concept. The 45 rule is specifically and only about judging corner bounce contacts. They happen to share a number but describe entirely different things.

Quick reference

Ball rebounds upward (above 45°): floor first — IN, point continues.
Ball skims low (below 45°): glass first — OUT, point to opposition.
The 45 rule is not an official FIP rule. It is the widely accepted informal guideline for judging corner bounces in club play.

Related padel rules guides

FAQs: The 45 rule in padel

+What is the 45 rule in padel?

The 45 rule is an informal guideline for judging a corner bounce. If the ball rebounds upward above 45 degrees after hitting the floor-glass junction, it hit the floor first and the point continues. If it skims below 45 degrees, it hit the glass first and is out.

+Is the 45 rule an official padel rule?

No. It is not written in the FIP (International Padel Federation) official rules. It is a widely accepted informal convention used in club and social play to judge disputed corner bounces without a referee.

+What is a bola huevo in padel?

Bola huevo (egg ball) is the Spanish name for a corner bounce — when the ball hits the angle where the floor meets the glass. The name comes from the egg-like shape of the simultaneous floor-glass contact. The 45 rule is the convention used to judge whether it was in or out.

+Floor first or glass first — how do I tell?

Watch the angle of the rebound after the corner contact. A steep upward rebound (above 45 degrees) means floor first — in. A low, skimming rebound that hugs the glass (below 45 degrees) means glass first — out. If genuinely unclear, most clubs replay the point.

+Does the 45 rule mean playing at 45-degree angles?

No — that is a common confusion. The 45 rule is only about judging corner bounces. Playing cross-court diagonal shots at around 45 degrees is a separate tactical idea. They share a number but describe completely different things.

Sources and notes

The 45 rule is not in the FIP official rules document. It is a widely used informal club convention. In competitive and tournament play, a referee makes the call.

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