Retirement or Disqualification:

Head to Head Matchups:

One full set must be completed for Money Line wagers to stand. If less than 1 set is completed, all Money Line wagers will be considered void.
Example: Federer 6-3, 2-0 (Roddick retired due to injury). All wagers stand. Federer declared the winner while Roddick is deemed the loser.
Example: Federer 2-0 (Roddick retired due to injury). All wagers considered void.

If we offer Player A (-1.5 sets or -2.5 sets ) vs Player B (+1.5 sets or +2.5 sets) the match must be completed else wagers on that line are void.

First Set Betting:

If the first set is not completed because of a player retirement or disqualification, all wagers will be considered void. Such wagers will be cancelled and the monies refunded.
Sets Betting:

If a tennis match is not completed because of a player retirement or disqualification, all Set wagers will be considered void. Such wagers will be cancelled and the monies refunded.
Handicap and Total Games Betting:

If a tennis match is not completed because of a player retirement or disqualification, all Handicap and Total Games bets will be considered void. Such wagers will be cancelled and the monies refunded.
Proposition Betting:

If a tennis match is not completed because of a player retirement or disqualification, all Prop wagers will be considered void. Such wagers will be cancelled and the monies refunded, with some exceptions pertaining to the completion of an individual set.

Example:
To Win 1st Set (Must Complete 1st Set)
Correct Score of 1st Set (Must complete 1st Set)
There Will be a Tie-Break in the Match? (Must complete Set)

For unique propositions on individual matches, the official tournament website statistics will be used for grading purposes.

Example:
Total Aces by Roddick vs. Federer in Australian Open semi-final. www.ausopen.org would be used for grading that prop.

Proposition betting for “Who will Last Longer”: Both players must start the tournament for bets to have action. If both players are eliminated in the same round, bets will be graded no action and all monies refunded.
Team Total Betting:

If a match ends with a player retirement, the team total bets for each individual player will be voided and graded as no action. A match must be completed for team total bets to be graded as action.

If one of the players does not start the match, or tournament, all team total bets associated with that match will be graded as no action.

Delay or Suspension:

If a tennis match is completed, all wagers stand as written. A delay in the start of a match will not affect the standing of wagers, nor will a suspension, as long as play is resumed and the match completed.

In the event a match does not go the specified number of sets, and the match is shortened by tournament officials, the leader determined to be official by tournament officials shall be the winner.

Example: A match is scheduled for 5 sets, but only 3 sets can be played because of weather. The leader at the end of 3 sets would be declared the winner of the match.

Pro Set:

If a match is decided on a Pro Set, instead of the normal length of the match, all wagers are refunded except wagers on the game money line.
Futures (Ante post) Betting:

All futures (Ante post) bets have action. Should a player withdraw before a tournament begins, or retire during a tournament, bets on that player to win the tournament lose.
Change of Venue or Playing Surface:

All bets stand regardless of any change of venue, court surface, changes from indoor to outdoor and vice versa.
Live Betting:

Live wagering is offered during changeovers only. The 1st Ball after the changeover must be served for wagers to have action.

If the first set is not completed all live bets will be void.

Individual Sets Betting: If the stated set is not completed, all live wagers will be voided.

Handicap and Total Games Betting: If a tennis match is not completed because of a player retirement or disqualification, all live wagers on Handicap and Total Games will be voided. The wagers will be cancelled and the monies refunded. Note this also applies to live wagers on lines such as Federer -2.5 Sets vs Roddick +2.5 Sets.