What is the no-tick shot rule?

Under rule R7, if, before the delivery of the sixth stone of an end, a delivered stone directly or indirectly moves an opposition stone that is in the Free Guard Zone and touching the centre line to an off-centre-line position, or to a position outside the Free Guard Zone, the non-offending team may choose to:

1. remove the delivered stone from play and replace all displaced stones to their earlier positions; or
2. leave all stones where they came to rest.

If the stone is moved from the centre line to an out-of-play position, the Free Guard Zone rule R6(b) applies instead (the delivered stone is removed and displaced stones are replaced).

The no-tick rule does not apply to wheelchair curling or Mixed Doubles competitions (R7(c)).

Source: World Curling Rules of Curling, 1 September 2026, rule R7.