JYP were already the last side on maximum points before tonight's games but had played fewer than most, but that is not the case any more after they beat Jokerit 4-2 and left the promoted side with just one point from their four outings thus far.
Maxime Fortier broke the deadlock in the opening seconds for Jokerit, but goals from Jere Lassila and Trenton Bourque had the visitors ahead after one period. Max Krogdahl drew the Helsinki side level midway through the match but again JYP pulled clear through Eeru Peltola and a second from Lassila.
Liiga champions Tappara have endured a rocky start to their title defence - their 4-0 loss at TPS Turku was their second defeat in three so far, leaving them 13th, while TPS have climbed to fourth having responded well to a two-game losing run by earning their third win of the season.
Jeremi Virtanen and Lukas Wernblom scored either side of the 20-minute mark before Kasper Pikkarainen and Alexis Binner completed the scoring in period three, but the night belonged to Eetu Makiniemi, who made 20 saves to register a memorable shutout.
Vaasan Sport are up to seventh in the standings thanks to a third victory from six games so far, as they had just enough to beat Lukko 2-1 away from home in Rauma, where the hosts remained on three points and sit 12th in the standings, albeit from only four matches.
Philip Granath was the hero for Sport, twice putting them ahead - first early in the second period and then midway through the third - either side of Alex Beaucage levelling late on in the second period.