Arsenal fans have come to celebrate St Totteringham's Day - the date upon which Spurs can no longer mathematically finish above the Gunners in the table - since the early 2000s, with Arsene Wenger having guided his team to a league finish above their rivals every season since his arrival in 1996.
Arsenal's record stretches back a further year with Spurs failing to secure bragging rights in the table over Arsenal since way back in 1994/95 (a 22-year bugbear) - but goals from Dele Alli and Harry Kane at the Lane on Sunday means Wenger can no longer catch Mauricio Pochettino's men.
Spurs' victory moves them four points behind Chelsea in the title race with four games remaining. Arsenal have five games left to play, but trail Spurs by 17 points - and the defeat had added satisfaction for Spurs fans in hitting their rivals' chances of Champions League qualification.
Surprise draws earlier in the day for both Manchester United and Manchester City put a top-four finish back in the hands of Arsenal, but the Gunners must now rely on either Jose Mourinho, Pep Guardiola or Jurgen Klopp's Liverpool slipping up in the race for Champions League football.