Having won two of the four previous events, the Canterbury Golf Club pro had to settle for finishing tied-fourth in the CK Facilities Management-sponsored tournament at the West Malling venue.
That, however, increased his points advantage over his closest pursuers in the Order of Merit to more than 100 and was testament to a consistency that has seen him not finish outside the top five in any of the five tournaments.
In addition to winning more than £2,400 in prize money for his efforts, Wallis has qualified for the annual end of season PGA Play-Offs which, due to the coronavirus pandemic, will be contested in 2021.