Coventry City's home fixtures ended with a whimper after a dour goalless draw against Gillingham.
The result means Coventry have failed to win at home this year, and the Sky Blues were lucky to escape with a point after Gillingham created far more chances.
The young Coventry side started neatly without properly threatening Gillingham and it was the visitors who carved out the first opening.
After just six minutes Danny Spiller found space 30 yards out and hit a half-volley that had Gary Montgomery stranded five yards off his line.
The City keeper was relieved to see the ball drop on to the crossbar and bounce down where it was cleared to safety.
The scare saw City take a firmer hold of the game and on 13 minutes Matt Jansen teed up McAllister whose 20-yard drive flew wide of Jason Brown's left-hand upright.
Gillingham were lucky to still have 11 men on the park when Spiller was only booked for a two-footed lunge on Andrew Whing just before the half-hour mark.
The outstanding Whing's influence down the right flank forced two chances for the home side.
First Jansen tried his luck from the right of the box but saw his effort curl wide, then McAllister repeated the trick with five minutes of the half remaining.
Debutant Isaac Osbourne completed the first half of his senior debut with a low 30-yard drive though Brown held it well.
He started the second half in similar fashion with a 25-yard effort that crept inches wide.
Coventry dominated as they created two more quality chances to break the deadlock on 55 minutes, first when David Pipe's shot was blocked by Roland Edge, then when Brown saved Mo Konjic's header from the resulting corner.
Substitute Leon Johnson nearly made an instant impact when his header was cleared off the line by Vicente Engonga.