The 1-0 win over Chelsea on Saturday was his 221st since taking charge in the summer of 2016.
That moves him ahead of Les McDowall, who secured 220 wins during his 13-year period as City boss, with one of his campaigns spent in the second tier.
“I am so proud,” Guardiola said. “The period we have been together has been magnificent.
“We can lose games, lose finals, but we play with incredible courage every single game.
“We go to play our game every single time and that makes me proud.”