Records tumbled at Nissan Arena on Saturday as the Fever withstood an unprecedented long-range shooting barrage from the defending champions to extend their unbeaten run to six games.

Having set the record with 66 goals against the Adelaide Thunderbirds in 2018, Fowler eclipsed her own high mark with 70 goals at almost 96 per cent accuracy as the Fever moved ahead of the Swifts into second spot on the ladder.

"No, I wasn't aware of that - that's really cool," Fowler said after her record-breaking performance.

"The girls feed a lot of balls in so I had to score them."

Fowler's dominance under the post was a major factor in West Coast building a 17-goal advantage late in the third quarter but Sam Wallace and Sophie Garbin combined to hit seven Super Shots in the last five minutes to give the Swifts a glimmer of hope.

The reigning champs then cut West Coast's lead to four by scoring eight of the first 10 goals in the fourth quarter but Fowler stood tall when it counted to secure the win, NSW ending the match with 15 Super Shots.

With a semi-final berth all but secured, the Fever will seek a top-two finish as they close the regular season against Giants Netball and Adelaide Thunderbirds.

With star attacker Helen Housby sidelined after suffering a concussion in Tuesday's round-11 loss to the Melbourne Vixens, the Swifts' makeshift lineup struggled in the opening quarter as the Fever jumped out to a 10-goal advantage.

Three Super Shots from Wallace kept NSW in the hunt but despite an even second period, the Fever went into halftime ahead 39-31 with Fowler helping herself to 36 goals from 37 attempts.

NSW were hoping that their second-half surge would be reminiscent of their stunning comeback win over the Fever in round two when Garbin fuelled a 27-11 third-quarter charge in the Swifts' one-goal victory.

But the Swifts had no answer for Fowler and will need to bounce back against the Adelaide Thunderbirds on Saturday to stay in the top-two race.

Australian Associated Press