United, who had won their first three matches in a row before Saturday’s game against the Sergio dos Santos-coached Ikapa, lead the stream by two points over Nathi Lions, who drew 1-1 against Durban Stars at Chatsworth on Friday night.
Only one team won this weekend, with the other three Coastal Stream matches all drawn.
Bay United, coached by former Maritzburg boss Vladislav Heric, beat FC Cape Town 1-0 in Port Elizabeth on Saturday to make a move to third place.
Defender Roderick Ebongue struck from long range in the 75th minute to give Bay United the three points.
After playing with the wind and going into the break at 0-0 in the first half Maritzburg scored just after half time through striker Collen Zimba from Omar Hendricks’s cross.
Minutes later, though, defensive midfielder Michael Mogaladi was sent off for a second bookable offence, and United, now playing into the wind and with 10 men, did well to only concede in the last ten minutes and hang on for a 1-1 draw.
United suffered a setback when John Aruwah needed to be replaced by Mogaladi in the first 10 minutes, the Ghanaian later requiring stitches for his head-wound, and Zimba also had to go off injured after a collision with the Ikapa goalkeeper soon after scoring.