@efficaciousmasterous #464114860
31
followers (as measured)
17 December 2017
account created (per Roblox API)
16 Sept 2026, 13:10
last measured (UTC)
Username record
@efficaciousmasterous — observed 16 September 2026
Roblox’s API lists prior usernames without dates; the dates above are when this register observed each name, which bounds — but is not — the change date.
Groups owned (as measured)
Open data
Download this user’s observed record: username history (CSV) · record (JSON)
Also a member of
Blue Lock Rivals Unofficial Fans#34671275 · Member
32,756,076Chillz Studios#2782840 · 🌟Royal Member🌟
18,587,764Bee Swarm Simulator Club#3982592 · Member
18,227,946Sol's Studio#8509669 · [Gamers]
12,659,282Rumble Studios#3333298 · Fan
11,232,163The Flamingo Fan Club#3336691 · December 5th we will all do something
9,880,802Easy.gg#5774246 · Member
4,739,876KreekCraft Community#3072234 · Member
3,015,026Cool group for big cool people#9285211 · Pro
2,942,531BlockZone#5202664 · Member
2,514,116ConnorVIII ™#2645986 · Member
1,317,546generic roleplay gaem fanclub.#5574524 · fan.
736,561Crazyblox Games#3196771 · Member
416,493The Gang Sheep's#7512225 · Member
236,745Membership and rank as measured from this user’s public group list.