Nottinghamshire reached 161-2 in the 69.1 overs of play that were possible on the first day of their LV= County Championship clash with Middlesex at Lord's.
The hosts claimed the wickets of Rikki Wessels (14) and Michael Lumb, who made 54, but they were foiled by Steven Mullaney's 88 not out as they failed to pick up a bowling bonus point after inserting their opponents.
Middlesex, still with a mathematical chance of claiming the Division One title, had to wait until the 16th over for an initial breakthrough.
Wessels was the man to go, driving at Neil Dexter's medium pace only to be caught at second slip by Sam Robson.
However Mullaney then combined with new man Lumb to further frustrate the hosts, the pair sharing a second-wicket stand of 115 that spanned 51 overs.
Lumb took 135 balls to reach his half-century and then another 36 balls to add a further four more runs before he skied a sweep at off spinner Ollie Rayner to deep square leg.
James Taylor faced three balls from Rayner before a short bad light delay; the players returned for a further 2.1 overs bowled before the light intervened again at 4.25pm for what proved to be the last time.
It meant Mullaney will have to wait to reach three figures for the fifth time in first-class cricket, the all-rounder having hit 10 boundaries from the 193 deliveries he'd faced.
Nottinghamshire began the game just seven points ahead of seventh-placed Derbyshire, though with a match in hand on the two counties immediately below them in a congested table.