Possible Clues:

• They are apparently ruled out in Dick Francis' Odds Against
• Quits competitions, being short of time
• Fifty-fifty odds
• The odds are that they're not so odd
• Not the odd bet for seven
• The odds are they may be favourite ones
• Two, four, six, eight, etc.
• Bet they're not 16 across
• Likelihood team's opening pair have got out?
• Finger-thrower's call