It was just over a minute and a half of playing time left when Holmberg got past the opponents' defense and sent the puck into the empty net. It was the 25-year-old Swede's fifth goal of the season. Teammate and compatriot William Nylander assisted.
The home team Chicago started with 1-0 in the first period, but were then overrun when Toronto scored three goals in a row in the second.
Chicago center Philipp Kurashev reduced the score – but the visitors scored two more goals in the third period and Toronto won 5-2.
I think, just like with everything else, that there were parts of this match that we liked and parts that we didn't like, says Chicago's Swedish coach Anders Sörensen to reporters after the match.
You have to take the positive and build on it. And the things we need to clean up, we'll clean up, he continues.
Chicago's Swedish goalkeeper Arvid Söderblom made 25 saves.