Shrewsbury Town continued their superb start to the Sky Bet League One season on Saturday as they earned a 2-1 win at Oldham Athletic.
Stefan Payne and Joe Nolan struck for the visitors either side of Craig Davies' goal, giving The Shrews their seventh victory in eight league matches.
Ben Godfrey completed 90 minutes for Paul Hurst's men, with Ebou Adams featuring as a late substitute and Carlton Morris missing out through injury.
Diallang Jaiyesimi was an unused substitute for Grimsby, who have now won back-to-back games.
Elsewhere, Sean Raggett completed the full match as Lincoln City were beaten 1-0 at home to Mansfield Town.
A tier further down, fellow youngster Michee Efete played 90 minutes as Torquay United were cruelly denied all three points at Barrow.
The away team had led for much of the contest courtesy of James Gray's early effort, only to be pegged back in the closing stages by Byron Harrison.
Torquay remain without a win this season as a result, and sit eight points from safety after 11 games.
In the same division, Woking maintained their strong home form with a 2-0 win over Sutton United - their fourth triumph at Kingfield Stadium in five outings.
Regan Charles-Cook hit both goals for the hosts, for whom defender Louis Ramsay played 70 minutes.
More locally, Henry Pollock started Norwich United's remarkable 4-4 draw at Tilbury in the Eastern Counties Football League Premier Division.
United trailed three times in the game but earned their first point of the season in the 90th minute courtesy of a dramatic Lee Will goal.
On Sunday, Harry Toffolo was an unused substitute for Doncaster Rovers as they were beaten 1-0 by local rivals Scunthorpe United in Sky Bet League One.
Toffolo spent last season on loan with Scunthorpe, but remained on the bench as his former side emerged victorious over his current one.
Finally, Friday night saw Limerick draw 1-1 at Bray Wanderers in the League of Ireland Premier Division, with Joe Crowe an unused substitute.