For the third time in as many attempts during a sunshine fixture this season, North Queensland lost, this time going down 1-0 to Logan United in Brisbane yesterday.
During their Queensland State League night games, the Razorbacks have lost just once in eight matches, winning six and drawing one.
"Maybe it's the afternoons. We've played three now – the first against Sunshine Coast, then against Olympic and today – we've lost them all," Tonner said.
"I don't know whether it's anything to be noted or not, but they're the facts."
Curse or not, Tonner was at a loss to explain the defeat.
The Razorbacks mentor said his team had enough chances to win the game time and again, but continuously failed to find the back of the net.
Tonner said his players deserved to have walked away as victors.
"I'm gutted, I'm really gutted because the better team lost – I just say what I see – the better team lost, and it's very, very disappointing," he said.
"We just created so many chances and played so well and dominated the game for long periods of time ... it was just that one error in judgement where the ball went over the 'keeper's head and it was 1-0."
Logan hit the lead in the 74th minute, but it wasn't the end of the contest, as North Queensland threw everything they had at the home team in the search for an equaliser.
But as it did all game, the goal eluded the Pigs.
Tonner refused to be critical of his team, though.
"I'm just really gutted for them because they worked so hard and played so well, they just tried and their effort was superb," he said.
"They stuck to the game plan, they got in behind (their opponents) – did everything we asked them to do – bar put the ball into the net.
"But that's football. It's a game where you can be so dominant, but unless you get that ball into that net it doesn't really matter at the end of the day what you've done."
The loss came as a double blow for the Razorbacks, who could have cemented their place in the top four after nearest rivals Redlands and Queensland Academy of Sport lost.
They also lost Sean Burke (ankle) and Jake Navarro (hamstring) to injury.
While Burke may be in doubt for NQ's upcoming clash with Sunshine Coast, Tonner was confident next week's bye should ensure Navarro's availability.
"The Sunshine Coast game now becomes a very significant one in our season," he said.