Match ends, Lincoln City 1, Altrincham 2.
Lincoln caretaker managers Grant Brown and Chris Moyses made a losing start to their reign as Altrincham picked up their second away win of the season.
Damien Reeves was their key man, scoring one goal and making the other.
He first dispossessed Thierry Audel and set up Simon Richmond to hammer in an 18-yard opener in the 45th minute and then guided in the second.
Substitute Connor Robinson got one back for City, lifting the ball over keeper Dave Parton, but they could not level.
Mid-table Lincoln performed better in the second half than in the first when they offered little.
Brown and Moyses were put in charge on Monday after manager Gary Simpson was put on gardening leave.
Lincoln joint caretaker manager Chris Moyses told BBC Radio Lincolnshire:
"I am extremely disappointed with the first-half performance. We did ok second half but were off it for the first half and I take the blame for that because we changed the system.
"For the last 25 minutes we had a go. We looked lively, we moved the ball a bit better and looked a threat.
"Altrincham worked very hard and we weren't at it. It has been difficult, but we have to be strong."
- 1FarmanBooked at 90mins
- 24AudelSubstituted forCapriceat 77'minutes
- 12MendySubstituted forTomlinsonat 56'minutes
- 15Sam-YorkeSubstituted forRobinsonat 60'minutes
- 17PartonBooked at 75mins
- 16MarshallBooked at 81mins
- 18WilliamsSubstituted forCavanaghat 88'minutes
- 10ReevesSubstituted forPerryat 82'minutes
- Simon Bennett
- Shots on Target
Second Half ends, Lincoln City 1, Altrincham 2.
Paul Farman (Lincoln City) is shown the yellow card for a bad foul.
Attempt missed. Ben Tomlinson (Lincoln City) right footed shot from outside the box misses to the right.
Foul by Nathaniel Brown (Lincoln City).
Kyle Perry (Altrincham) wins a free kick.
Offside, Altrincham. Kyle Perry tries a through ball, but Kyle Perry is caught offside.
Substitution, Altrincham. Peter Cavanagh replaces Sean Williams.
Foul by Alan Power (Lincoln City).
Sean Williams (Altrincham) wins a free kick.
Attempt saved. Sean Williams (Altrincham) right footed shot from outside the box is saved. Assisted by James Lawrie.
Attempt missed. Jordan Burrow (Lincoln City) header from the left side of the six yard box is too high.
Attempt missed. Tom Miller (Lincoln City) header from the left side of the six yard box misses to the right. Assisted by Sean Newton with a cross.
Substitution, Altrincham. Kyle Perry replaces Damian Reeves.
Tom Marshall (Altrincham) is shown the yellow card for dissent.
Foul by Tom Marshall (Altrincham).
Connor Robinson (Lincoln City) wins a free kick.
Attempt saved. Jordan Burrow (Lincoln City) right footed shot from the right side of the box is saved.