Asif Ali blasted a 51-ball century at Great Horton Park Chapel, but it wasn't enough to save them going down by 19 runs.
The 3rd XI reduced their hosts to 7 for 3, before they recovered to 184, thanks to contributions from the middle order. Asif Ali took 2 for 32 and Alicia Smith, playing her first match since returning to the club, took 1 for 26.
Asif saw wickets fall around him regularly, only forming one solid partnership with his brother Arshad, who scored 37. Five Illingworth batters failed to trouble the scorers, which ultimately was the difference between the two sides.