Defensive pressure from Samantha Way and Abbey Lieschke saw Howlong account for Holbrook on Saturday.
The Spiders racked up their second win of the season after defeating the Brookers 51-26 at home.
Howlong coach Emma Pargeter admitted Way and Lieschke made it hard for the visitors.
"They put a lot of pressure in our defence end and made a lot of turnovers," Pargeter said.
It marks Way's first season at the club after coming across from Tallangatta and District League side Rutherglen, with the Spiders only retaining Pargeter, April Lampe and Jaimi Dove from their 2019 side.
"The new girls are settling in really well and I think that's something that's been working in our favour, how quickly they've gelled," Pargeter said.
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"In some ways we've been lucky because we've had three tough games and have had to work quite hard.
"I think that's a good way to start the season when you're put in a position where you have to start playing your best netball pretty quickly."
Howlong was coming off the back of a loss to reigning premiers Billabong Crows, who this round were upset by Osborne.
The Tigers posted a narrow three-goal win against the Crows at Oaklands.
Lockhart also celebrated a big win, finishing the day with 83 goals to Culcairn's 31 in Culcairn.
Other round three results saw Rand-Walbundrie-Walla account for Brock-Burrum, CDHBU defeated Murray Magpies and Jindera were too good for Henty.
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