Inverness failed to score for the first time this season but stretched their unbeaten run to nine games and retained second place with a 0-0 draw at St Johnstone.
Caley Thistle had found the net in their previous 25 matches this season, with their SPL games averaging four goals a game, but they found St Johnstone difficult to break down despite having two one-on-ones in the opening stages, neither straightforward.
Gregory Tade had a similar chance saved for the hosts, who also saw David McCracken's header cleared off the line, but the game lacked the spark associated with Inverness throughout the season.