Chilean import Jose Luis Villanueva gave Bunyodkor the lead in the eighth minute but Zaynitdin Tadjiyev restored the parity in the stoppage time to earn a point for his side.
Bunyodkor are on 42 points after 13 victories and three draws, two more than Pakhtakor.
Third-placed Neftchi played a 1-1 draw with Sogdiana after Ilya Kovalenko’s 34th minute strike for Neftchi was cancelled out by Shahboz Erkinov nine minutes into the second half.
In other matches, Andijan beat Mash’al 2-0, Nasaf downed UzDongJu by the same scoreline, Navbakhor brush aside Metallurg 3-0, Kyzylkum lost to Shurtan 2-0, AGMK overcame Lokomotiv 4-3 and Bukhara beat Dynamo 1-0.