Wigan Athletic's Dan Burn shoots at goal
But in the 90th minute, Craig Davies scored from close range to level the scores and deprive Birmingham of what would have been a smash-and-grab victory.
The assist was provided by William Grigg, who was as ever somewhat on fire.
Davies celebrates scoring the late equaliser
Wigan completely dominated the match. They had 71% possession, 20 shots on goal (compared to Birmingham's six), and ten corners (compared to Birmingham's two).
Despite their dominance, Birmingham arguably had the more gilt-edged chances. One such chance led to Donaldson hitting the post after Adam Bogdan had saved Jacques Maghoma's shot.
Wigan fans took to Twitter after the game to express their pride in the team's never-say-die-attitude, although there was a latent sense that perhaps the Latics should have gained the full three points given their dominance.
@power_m4 let down by the officials, and Brum just parked the bus after scoring. Point was the least we deserved.— Jon (@Jon_wafc) August 16, 2016
Well earned point in the end. Great spirit from the boys to keep going. Can't wait for Saturday now. #upthetics ⚪️— Alex Gilbey (@agilbey8) August 16, 2016
The Latics pay a visit to the City Ground on Saturday afternoon for a clash with Nottingham Forest.
With Forest having endured a poor start to the season, losing two of their first three games, Wigan will be confident of at least gaining a point from the match.