Match ends, Grimsby Town 0, Altrincham 0.
Grimsby's winless run stretched to three games as Altrincham goalkeeper Stuart Coburn kept them at bay.
Coburn made a good save from Patrick McLaughlin just after the half-hour before he tipped a left-foot shot from Aswad Thomas around the post.
Top scorer Damian Reeves almost won it for the visitors late on but James McKeown kept out his header.
The result leaves the Mariners in 11th place in the table - six points off the play-offs - with Altrincham 18th.
Grimsby manager Paul Hurst told BBC Radio Humberside:
"Obviously the simple thing is we didn't get the ball in the net, but I can't fault the players in terms of the effort to try and win the game.
"We couldn't find the goal which I felt the players deserved and ultimately it's two points dropped at home.
"The only thing I can knock them for is at times we're a little bit static in the box, from the second phase of a cross where it's maybe headed back across the goal, or it's a defender who moves and we react to things rather than gambling on them. "
- 26McLaughlinSubstituted forOatesat 72'minutes
- 14John-LewisSubstituted forHannahat 72'minutes
- 18WilliamsSubstituted forCavanaghat 46'minutesBooked at 61mins
- 11CleeSubstituted forCrowtherat 76'minutes
- 15WilkinsonSubstituted forPerryat 60'minutes
- 10ReevesBooked at 39mins
- Ross Joyce
- Shots on Target
Second Half ends, Grimsby Town 0, Altrincham 0.
Foul by Jack Mackreth (Grimsby Town).
Ryan Crowther (Altrincham) wins a free kick.
Corner, Grimsby Town.
Attempt missed. Damian Reeves (Altrincham) header from the centre of the box misses to the right. Assisted by Kyle Perry with a cross.
Attempt saved. Carl Magnay (Grimsby Town) left footed shot from outside the box is saved.
Offside, Altrincham. Damian Reeves tries a through ball, but Damian Reeves is caught offside.
Attempt saved. Damian Reeves (Altrincham) header from the centre of the box is saved. Assisted by Peter Cavanagh with a cross.
Attempt saved. Danny Parslow (Grimsby Town) header from the centre of the box is saved. Assisted by Scott Neilson with a cross.
Foul by Peter Cavanagh (Altrincham).
Craig Clay (Grimsby Town) wins a free kick.
Foul by Adam Griffin (Altrincham).
Jack Mackreth (Grimsby Town) wins a free kick.
Substitution, Altrincham. Ryan Crowther replaces Nicky Clee.
Substitution, Grimsby Town. Rhys Oates replaces Patrick McLaughlin.
Substitution, Grimsby Town. Ross Hannah replaces Lenell John-Lewis.
Corner, Grimsby Town.
Attempt blocked. Aswad Thomas (Grimsby Town) left footed shot from outside the box is blocked.
Attempt blocked. Carl Magnay (Grimsby Town) right footed shot from outside the box is blocked.