Antonio Conte's men reclaimed top spot in the Premier League but they had to come from behind as a first-half Christian Eriksen strike ended a run of six straight clean sheets in the competition.
Here's how the Blues players rated out of ten in a typically high-octane London derby.
Thibaut Courtois 6/10
Determination to play out from the back played right into high-pressing Tottenham's strength and the Belgian looked unconvincing when palming over a routine-looking drive from Harry Kane
Cesar Azpilicueta 6/10
At fault for making himself available for a pass from Courtois too readily and often hurried into hurling the ball away as a result but played a couple of astute balls out from the back when given time to breathe
David Luiz 7/10
Supplied his usual elegant, Frank Leboeuf-style balls out of defence while tackling like a tank. Quite rightly booked for a first-half lunge through Kane
Gary Cahill 7/10
The most steady of an embattled back three in the early stages, his experience helped his team stabilise at the back
Victor Moses 8/10 (man of the match)
Went up and down the right flank like a Scalextric car with no white shirt able to stop him in a display which explains why Barcelona may be casting covetous glances in his direction
Also scored on a good day at the office for the Nigerian
N'Golo Kante 7/10
Supplied trademark energy and, although hindered by a deep position as Tottenham attacked early on, did the spadework, along with Matic, that helped Chelsea get back into the game
Nemanja Matic 7/10
Strong and assured when Chelsea were under the cosh early on and performed a vital role in Chelsea's resurgence alongside Kante
Marcos Alonso 6/10
Less convincing than his counterpart Moses on the opposite flank, to give Chelsea a slightly lopsided look
Beautiful strike for the equaliser, creating a bubble of space around him to supply a finish that gave Lloris no chance
Diego Costa 7/10
The usual frustrating combination of top-class hold-up play and knock-downs combined with histrionics which saw him wailing at the official from the turf three times in the opening seven
Costa did rovide a vital pressure valve as Tottenham poured forward in the last 10 minutes, though
Eden Hazard 6/10
One of the Belgian's quieter displays saw him replaced by Willian 14 minutes from time
Willian on for Hazard, 76 minutes; Ivanovic on for Moses, 80 minutes; and Oscar on for Pedro, 83 minutes, no rating.
Think Costa was more chump than champ? Give us your assessments below.