Harry Kane was on the double for Tottenham Hotspur, who faced continued Nottingham Forest pressure to take all three points on Sunday afternoon.
Antonio Conte's men fared relatively poorly in the East Midlands, lacking the urgency to see a spirited forest captured and some presentable opportunities.
But the hosts were simply unable to finish, and endured two major periods of looking overstretched at the break.
In both of those spells, the Spurs capitalized. Dejan Kulusewski, one of Spurs' few shining sparks, broke through the heart of Forrest Backline before Kane was drafted for the opening opener.
With nine minutes left on the clock, the North London players wrapped up the game with Richardson's superb out-of-the-boot cross, finding Kane in space at the back post, crouching down for the England captain and Had to go inside.
Kane was making amends to turn down an earlier second goal, his second-half penalty was saved by Dean Henderson.
The former Manchester United goalkeeper took the lead while saving a spot-kick for the second straight game here.
Unlike West Ham United, however, this was not enough. This leaves Forrest with four points from as many games, while Spurs rise to 10, level with defending champions Manchester City and behind leaders Arsenal.