In the Scottish Women's Premier League title race, leaders Rangers easily defeated Glasgow City to move seven points clear of the 16-time champions.
Cumbernauld's 4-1 win means City have a huge lead in third place with seven games remaining.
Celtic secured a 5-0 win away at Partick Thistle in the Glasgow derby and remain one point clear of Rangers.
Aberdeen, Motherwell and Montrose also won games on Sunday.
Striker Rio Hardy's penalty gave Rangers an early lead, but Scottish winger Lauren Davidson equalized for the visitors before the half was even.
However, Rangers regained the lead just after the break thanks to a brilliant long-range strike from forward Lizzy Arnott, and Rangers continued to dominate, with midfield pairing Chelsea Cornett and Mia Macaulay adding to their tally. extended.
Celtic were leading by four points by half-time against Thistle.
Center half Caitlin Hayes slid in a cross from Natalie Ross before striker Natasha Flint doubled and Murphy Agnew also found the back of the net.
Agnew added his second goal to open the scoring early in the second half.
In the bottom half, seventh-placed Aberdeen came from behind twice to beat Hamilton Academical 3-2 and keep Robert Watson's visitors bottom of the table on goal difference.
Melissa Reid put the Ashes ahead early on, scoring her first goal for the club, but Francesca Ogilvie responded almost immediately for Aberdeen.
Joshi Jarre needed only a second-half striker Bayley Hutchison's double to restore the Accies' lead before the break and secure a home win.
Motherwell defeated second-placed Dundee United 2-1 at Fir Park and remain three points clear of Aberdeen.
The home team took the lead 15 minutes into the second half with a goal from Morgan Cross.
Georgie Robb equalized with 10 minutes remaining, but Lauren Berry's goal three minutes later sealed the winner for Paul Brownlee's side.
Meanwhile, Montrose, who are in eighth place, won 2-1 away at the Spartans, but still remain six points clear of the bottom two.
Right-back Clare Delworth opened the scoring for the visitors after the break, with Jade McLaren scoring her second with 12 minutes remaining.
Becky Galbraith's penalty was saved by Lauren Perry and the Spartans missed a chance to narrow the lead.
And while the striker recovered a few minutes later, Montrose held on for the win and extended their lead over 10th-placed Edinburgh to six points.
