Arsenal missed the chance to keep pace with Women's Super League leaders Manchester City on Sunday, but Liverpool grabbed the standout result.
Liverpool edged Tottenham 3-2 thanks to Marie-Therese Hobinger's last-gasp penalty.
Having netted her first goal of the season in the 75th minute, Hobinger doubled up to win it for the Reds deep in stoppage time.
Ashleigh Neville fouled Sophie Roman Haug, and Hobinger made no mistake to seal Liverpool's first win of the season.
Neville had turned provider for Tottenham's second equaliser of the game at Gaughan Group Stadium, when she crossed for Clare Hunt to score in the 83rd minute.
Liverpool took the lead early on through Cornelia Kapocs, before Taylor Hinds' own goal handed Spurs a leveller.
The Reds' Merseyside rivals Everton, meanwhile, frustrated Arsenal by holding the Gunners to a 0-0 draw.
Everton have been hit by serious knee injuries to Inma Gabarro and Aurora Galli this season, but the Toffees showed plenty of resilience to pick up their first point of the campaign at Emirates Stadium.
Emily Fox went closest for Arsenal when she hit the post early in the first half, but in spite of having 21 shots, the Gunners accumulated only 0.74 expected goals (xG).
Annabel Blanchard, meanwhile, netted twice to propel Crystal Palace to their first victory of the season, as they beat Leicester City 2-0.
Earlier in the day, Man City defeated West Ham 2-0.