Alex McLeish paid tribute to the character of his Birmingham players following the 1-1 draw with Tottenham.
Blues had to withstand long periods of pressure in the first half at St Andrews and fell behind to Sebastien Bassong's goal after 19 minutes.
But the home side dug deep once again and a second-half goal from Craig Gardner means they have only been beaten once in front of their own fans since September 2009.
McLeish was delighted with the way his players kept fighting even though they were fatigued after the midweek Carling Cup victory over local rivals Aston Villa.
He said: "The Villa game took unbelievable energy out of the players. It was an emotional night.
"Harry (Redknapp) might have thought we were there for the taking because of that.
"A lot of players were running on empty and we had to patch them up but one thing you can't deny them is our phenomenal spirit.
"Spurs were fresh today, having not played in midweek, and they had chances in the first half but we could have won it in the second. We shuffled things tactically and were more effective."
McLeish was thrilled with the performance of midweek goal hero Nikola Zigic, who came on in the second half and set up the equaliser.
"I would say that was the most effective he has been for us. He did not lose a header in the air today. He is adjusting to the different style of football over here," said McLeish.
Tottenham defender Alan Hutton appeared to head-butt Birmingham defender David Murphy in the chest in injury time after being on the receiving end of a late challenge but referee Kevin Friend took no action against either player.
McLeish, who managed Hutton at Rangers, said: "Did the referee see it? He could not have seen it but I'm not here to talk about players getting sent off.
"It was a reaction from Hutton over a bad tackle on him, a split second emotional reaction."