Cody Gakpo put the Netherlands a goal up after just six minutes, but Enner Valencia equalised in the second half.
The Netherlands and Ecuador shared points in their second World Cup, with the South American underdogs looking the more dangerous throughout their 1-1 Group A draw.
The result on Friday means that hosts Qatar are the first team to be knocked out of the tournament. Senegal beat Qatar 3-1 earlier in the day.
Cody Gakpo put the Netherlands a goal up after just six minutes. But an Ecuador goal disallowed just before half-time gave an indication of the one-way traffic which was to follow in the second half.
Minutes into the second period, Enner Valenca became this World Cup’s highest goal scorer – so far, with a goal in the 49th minute.
More to follow.