Despite going a point clear of Borussia Dortmund, the Bayern Munich manager felt die Roten deserved nothing less than a win at the BayArena.
Toni Kroos had opened Bayern's account only for Sidney Sam to equalize immediately, and the Bavarians to subsequently miss a hatful of scoring opportunities to win the game.
And though acknowledging that the dominant nature of the display pleased him, Guardiola was still disappointed that his side had not emerged victorious.
"Congratulations to my players. I am proud of our performance," the former Barcelona boss told Sky Sports Deutschland. "We have played very, very well. Nevertheless, we have not won. I do not know what to say. But that's football. [Bernd] Leno is a very good goalkeeper. We had done everything, but we are still in first place."
Meanwhile, captain Philipp Lahm also felt that the reigning European champions had done enough to win the match.
"Despite clear opportunities we have failed to score," the Germany international stated. "With the game itself, we can be happy, we were clearly superior.
"We clearly had the upper hand against a good team like Leverkusen, who had few opportunities. The mix between attack and defense was good again."