If Janesville takes at least three of the four points up for grabs Friday and Saturday, it will clinch second place and home-ice advantage in the first round of a playoff series against the Minnesota Wilderness
LaFontaine made 86 saves on 90 shots in his two games against the Springfield Junior Blues, both Jets wins.
They put 15 shots on goal and scored three goals in the opening 20 minutes and chased Springfield's starting goalie with a fourth goal early in the second period on their way to a 6-2 road win.
The Janesville Jets were shut out for the third time this season Friday night.
Jack LaFontaine is currently riding another five-game winning streak and hasn't lost a game that wasn't decided by a shootout in his last 12 outings (8-0-0-2 in that stretch).
Janesville opened a three-game series with a 6-2 road win Thursday
Janesville limited visiting Springfield to just 16 shots on goal, and Jack LaFontaine stopped all of them to lead the Jets to a 1-0 victory.
Janesville put the pressure on the Springfield Junior Blues all night Friday, but Blues goalie Tommy Nappier held up and made 30 saves as his team scored a goal in each period to beat the Jets 3-2.
Janesville opened a three-game home series with a 3-2 victory Thursday night
Janesville and Springfield will play each other six times in 10 days in North American Hockey League action