In which sport would you bowl a maiden over?

Bowling a maiden over is a term specifically used in cricket. In this context, a maiden over consists of six consecutive legal deliveries bowled by a bowler in which no runs are scored off the bat. This is significant because it reflects the bowler's skill in containing the batters and limiting scoring opportunities. In cricket, achieving a maiden over is considered an accomplishment, demonstrating effective bowling strategy and control.

In contrast, the other sports listed do not involve the concept of bowling or “over” in the same way cricket does. Golf features different terminology and scoring methods, while rugby focuses on gameplay involving carrying and passing a ball without a concept of bowling. Tennis is centered around rallying a ball over a net and also doesn't utilize the term 'over.' Thus, cricket is the only sport where the term 'maiden over' is relevant, confirming that this is the correct answer.