The young Foxes headed into the fixture at Hotspur Way still looking to register their first points of the 2020/21 season and they fell behind before the interval.
In the 38th minute, Max Robson located Jamie Donley for the home side, with the latter putting Spurs ahead in Enfield.
However, City’s youngsters remained in the clash and, with seconds to spare, Marcal-Madivadua collected the ball from Will Russ, before beating Adam Hayton to seal a point.
Leicester remain 13th in U18 Premier South, four points behind West Bromwich Albion, ahead of travelling to Arsenal on Saturday in an 11:30am GMT kick-off in Shenley.
The details
City: Doherty (c); Obi, Trialist, Trialist, Wormleighton; Marcal-Madivadua, Trialist (Maswanhise 45’), Butterfill (Trialist 45’), Braybroke, Cover; Pennant (Russ 75’).
Subs not used: Weeks, Cook.
Goal: Marcal-Madivadua 90’