Needing only one run from the last over to win outright, Tea Tree Gully lost its last three wickets without scoring in five balls from South African spinner Ulricht van Duyker.
The battle for first innings points had also been tight, with Tea Tree Gully passing Sturt’s score of 197 with its last batting pair at the crease.
A quick 5/227 from Sturt then set TTG a target of 218 before a run out on the penultimate ball ended a chase led by Patrick Page jnr (76 from 45 balls) and Tim Davey (71 off 50 balls).
East Torrens secured outright points on the back of an impressive performance by allrounder Luke Robins. His 125 from 117 balls steered the side to a big first innings lead and he then took 5/44 as Southern District was dismissed for 116 in its second innings.
Glenelg also banked outright points after bowling Port Adelaide out for 132, racing to 2/195 from 34 overs and then dismissing Port a second time for 100. Daniel Clarke took four wickets in both innings.
Harry Nielsen, Conor McInerney and Jacob Dickman all made centuries for Woodville on Saturday in its 5/455 but the match ended in a draw after Northern Districts recovered from 3/17 to bat the rest of Sunday and reach 7/331.
Sam Raphael (108) and Ben Pengelley (93) guided Adelaide to first innings points against Prospect and Adelaide University held top spot after defeating West Torrens.
171: Harry Nielsen (Woodville)
150: Conor McInerney (Woodville)
125: Luke Robins (East Torrens)
103*: Kirk Pascoe (Northern Districts)
101*: Jacob Dickman (Woodville)
5/44: Luke Robins (East Torrens)
5/68: Nick Patterson (Adelaide)
4/20: Ulricht van Duyker (Sturt)
4/24: Max Tonkin (Glenelg)
4/27: Ben Pengelley (Adelaide)