Newcastle won all 11 games where they led at half-time in 2020, but Adam O'Brien's team didn't notch a single win when trailing following the first 40 minutes.
Parramatta (11/11), Melbourne (12/13), Penrith (14/16), Canberra (9/10), Cronulla (8/10) and Gold Coast (6/6) were also strong at converting first-half leads into victories in the regular season.
St George Illawarra struggled to close out matches, only winning five of the nine times they started the second term ahead. The Dragons also went 0/3 when the scores were level at half-time.
Given they finished in 12th position, three wins adrift of Cronulla in eighth, St George Illawarra's inability to capitalise on solid starts may have ultimately cost them a finals berth.
Like the Knights, the Sharks and Bulldogs couldn't notch up a win after trailing at the break, while the Broncos (1/15), Cowboys (1/14), Titans (2/12) and Warriors (3/13) didn't fare much better.
Ricky Stuart's Raiders were on the wrong side of the scoreboard come half-time in half their matches, but managed to win 5/10.
The first-placed Panthers (3/3) and eventual champions the Storm (4/7) had the best win rates following a half-time deficit.