Germyn, Armstrong, and Van der Gulik all scored in the first period for Quad City, which took the 3-0 advantage into the middle stanza.
Greentree and Vandermeer then netted third-period goals for the Flames to make it a 5-1 game. Iowa’s Drew Miller and Quad City’s Cunning traded goals in the latter part of the period.
Irving finished with 16 saves in the victory, which was the Flames’ fourth in their last six games (4-2-0-0).
Quad City scored six goals on three occasions last season, including back-to-back games from Feb. 22-24.
MILWAUKEE 3, GRAND RAPIDS 2
Stephen Werner netted a pair of third-period goals to give Milwaukee a 3-2 win over visiting Grand Rapids at the Bradley Center.
Werner gave Milwaukee its first lead of the night on the power play 2:13 of the third, only to have Darren Haydar tie it for Grand Rapids at 10:32. But just 12 seconds later, at the 10:44 mark, Werner scored again to put the Admirals on top for good.
Milwaukee goaltender Mark Dekanich stopped 29 of 31 shots to earn his second win of the year (2-1-0).
BRIDGEPORT 3, SAN ANTONIO 1
Bridgeport scored three times in the third period to rally past San Antonio by a 3-1 count at the AT&T Center.
Trailing 1-0, the Sound Tigers received third-period markers from Ben Walter at 2:18 and Trevor Smith at 17:45. Mike Iggulden scored his team-leading 11th of the season into an empty net at 19:56 to seal it.
Sound Tigers goaltender Nathan Lawson earned his fourth win in as many appearances with 28 saves on 29 shots. Bridgeport moved to 6-0-0-1 in its last seven outings.
Derek Nesbitt scored in the second period for the Rampage, who dropped their 10th consecutive game (0-9-0-1).