Brazilian international Kerolin netted a hat-trick, while Vivianne Miedema and Khadija Shaw added to the tally on an entertaining afternoon in Manchester.
Confidence oozing from every player, and Kerolin a bag of tricks and flair, it was a showcase of everything that has helped City carve out such a commanding lead.
They are chasing a first WSL trophy in a decade but Jeglertz could only laugh when asked if they had one hand on it already.
"I think that is very difficult to say. We showed today that we are definitely a team with great confidence," he added.
"The pressure is there from [the media], saying that we've won the league, and the team is coming out and handling it marvellously.
"This belief the team has at the moment, that we will find a way to win, is a thing we can use in the future also. We have a couple of games left of the season."
The word 'consistency' is a favourite of Jeglertz's and it's been the key ingredient to their success this season.
His consistently calm demeanour - whether they win or lose - is one of the many positive traits of his management, and his side have mirrored it in their performances.
When the hype was dialled up to the maximum on Sunday, and City's supporters coming out in their numbers to prepare for an early celebration, the players kept to their routine, stuck to the gameplan, and embarrassed the defending champions.
Jeglertz has given them flexibility in their playing style, urged his players to show personality and creativity, and made them feel like they are the world's best.
"I came to the club because I want to win something. I haven't done that yet even though we have done a lot of good things. We are only on our way," he said earlier this week.