Group 1 of the 1970 FIFA World Cup was contested in Mexico City's Estadio Azteca between 31 May and 11 June 1970. The Soviet Union and Mexico finished level on both points and goal difference, meaning a drawing of lots was required under the tournament rules to determine the placings of the teams. The Soviet Union was drawn out and therefore were ranked as group winner, with Mexico ranked in second place. Belgium and El Salvador both failed to advance.
^ abHaving finished level on both points and goal difference, the Soviet Union and Mexico were separated by the drawing of lots. Goals scored was not used as the tiebreaker by chance.