Panthers halfback Nathan Cleary became the first player since round three to cover 10 kilometres or more in last week's thumping win against Manly.
Cleary, who had a night out at Lottoland with a try and seven goals, ran 10.2km according to Telstra Tracker data.
No one had reached double figures since an extra-time draw between Newcastle and Penrith nine weeks ago.
On that day, Enari Tuala (10.6km), Kurt Mann (10.4), Jarome Luai (10.2), Bradman Best (10.1) and Matt Burton (10) all worked themselves to a standstill over 90 minutes.
Dragons centre Zac Lomax is the only player other than Cleary to rack up 10km in 80 minutes. Lomax covered 10.1km in round one when he was playing fullback.
Cleary's halves partner Luai covered 9.6km last round, followed by Roosters pivot Luke Keary (9.5), Knights halfback Mitchell Pearce (9.4) and Tricolours playmaker Kyle Flanagan (9.4).
Elsewhere in round 12, Eels captain Clint Gutherson and Bulldogs fullback Nick Meaney led the way for high-speed efforts (bursts of 20km/h or more) with 38 apiece.
The two No.1s opposed each other on Sunday, with Gutherson's team holding on for a nervous 18-16 victory at ANZ Stadium.
Storm custodian Ryan Papenhuyzen, who like Gutherson is almost a permanent fixture in the top five of this category, registered 35 high-speed efforts. The 22-year-old is being rested this week.
Keary (34) and Lomax (34) rounded out the leaderboard.
St George Illawarra fullback Matt Dufty ascended to the top of the speed ladder for the second time in 2020, clocking 36.2km/h in his two-try performance against South Sydney.
Gutherson (35.1km/h), Titans dynamo AJ Brimson (35.1), South Sydney winger Alex Johnston (34.8) and Cowboys five-eighth Ben Hampton (34.7) trailed Dufty.