Proofset AcademyModule 1 · Professional tennisLesson 1.6Free · 25 min

Retirement, walkover, suspension

A tennis match has no clock and does not always end on match point. A player can get injured, pull out before stepping onto the court, or see rain stop play. Each of these cases has a name, a rule on the tour, and a consequence for a bet.

Part 1

Four terms not to confuse

Retirementabbreviation: “ret.”

The match has started, then a player stops, most often because of an injury or illness. The opponent is declared the winner. The displayed score stops there, for example 6-3 2-1 ret.

Walkoverabbreviation: “w/o”

The player withdraws before the start of the match. The opponent goes through to the next round without playing. No point is played, there is no score.

Default (disqualification)abbreviation: “def.”

The umpire removes a player, for example after a ball hit in anger strikes someone, or after too many warnings. The match stops and the opponent wins. This is rare.

Suspensionsuspended / postponed

Rain, darkness or a technical problem stops the match. It resumes later, often the next day, at the exact score where it stopped.

There is also the lucky loser: when a player withdraws before the draw begins, their place is given to a player beaten in the final round of qualifying. The opponent therefore changes, sometimes a few hours before the match.

Part 2 · Animation

Rain stops play

On an outdoor court, rain makes the lines and the surface slippery. The umpire suspends the match, the players go off, and covers are put over the court. On grass and hard courts, it can take a long time for the court to dry. The big stadiums have a closing roof; the outside courts do not.

MATCH SUSPENDED 6-4 3-2 · 30-15

The score is frozen. When the match resumes, it restarts from 6-4 3-2, 30-15. The players are allowed a short warm-up. For a bet, a suspension generally cancels nothing: the bet waits for the end of the match. But each operator sets a time limit: if the match does not resume in time, the bet may be voided. The rule is written in the operator’s terms and conditions.

Part 3 · Your turn

It all depends on the timing

Choose the moment when the player pulls out. You will see what happens in the tournament and what generally happens to a bet on this match.

In the tournament

For a bet

Part 4

The three families of operators’ rules

For a retirement, there is no single rule: each operator chooses its own and writes it in its terms and conditions. You will almost always find one of these three families.

FamilyThe bet stands if…Otherwise
One point playedAt least one point has been played. The player who goes through to the next round is declared the winner.Walkover before the match: bet voided.
One set completedThe first set was completed before the retirement.Bet voided.
Match completedThe match went all the way to match point.Any retirement voids the bet.

“Voided” means the bet is treated as if it had never existed. Bets on the number of games or sets often have their own, stricter rules. Always read your operator’s terms and conditions before betting.

Part 5

Treatment and breaks during the match

The medical time-out

A player can call for the physio or the doctor. On-court treatment lasts 3 minutes, at a change of ends or immediately if it is urgent.

Cramp

Cramp does not entitle a player to a separate medical time-out: the player must treat it during the normal breaks. Cramp often signals a difficult end to the match.

Toilet breaks

They are limited in number and duration. A player can also change clothes. These breaks sometimes disrupt the opponent’s rhythm.

What you see on screen

Strapping that appears, a slower serve, shorter rallies: these are clues, not proof. Many players who receive treatment finish and win their match.

The exact rules (number of breaks, duration) vary by tour (ATP, WTA, ITF) and are updated every season.

Part 6 · Proofset measurements

The signals Proofset displays

A retirement cannot be predicted. But a player who has played a lot in recent days, or who is coming back after a long absence, is not in their usual condition. Proofset shows this on the match page with two tags: overloaded and returning. Here is how often the ELO favourite won, according to its tag, in the Proofset database.

61,9 %ELO favourite active: playing normally.
57,4 %ELO favourite returning: coming back after an absence.
56,5 %ELO favourite overloaded: has played a lot recently.

An overloaded or returning favourite wins less often than an active favourite. This is a benchmark to keep in mind when reading a probability: the lesson on the Proofset method will come back to this.

Why this matters for a bet

  • The same retirement gives different results depending on the operator. Settled with one, voided with another: you need to know the rule before betting, not after.
  • A walkover is not a defeat. The player who goes through without playing has proved nothing, and the one who withdrew was not beaten on court: a walkover says nothing about the level of either player.
  • Check the favourite’s condition before the match: matches played in recent days, return from injury, opponent changed at the last minute (lucky loser).
Part 7

Test yourself

7 questions. You need 6 correct answers to pass the lesson.

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