Kuils River made light work of Belhar during their Western Province Rugby Football Union (WPRFU) Super League B encounter in their backyard at the weekend.
They won the match 39-6 to record their third win in four outings and earned a bonus point.
They claimed the top spot on the log from Vineyards who were on 16 points after four rounds and did not play this weekend.
Even though Kuils River and Franschhoek each have 17 points, the Kuila, as they are fondly known among fans, top the standings by virtue of having a superior points difference.
They have managed to win a bonus point in all four of their fixtures this season.
The victory against Belhar means Kuils River had a perfect evening on Saturday as all their teams came away successful with the under-20s winning 22-7, the third team recording 37-11 and the second team finishing 28-12.
In other SLB action that took place at the weekend, Bellville maintained their 100% win after three matches, beating Macassar 46-22 at home.
They moved to sixth place on the log, just two points behind Kuils River, while Macassar suffered their fourth loss in five matches and remain at the bottom half of the table. Franschhoek easily brushed aside All Saints, who only have one win, with the final 61-19 score leaving them level on points with Kuils River after four rounds.
Young Peoples remain winless after four matches after going down 8-59 to Hamlets.
They sit at the foot of the table while Hamlets got their second win in their three matches. Only Busy Bees have the same record of having no wins after four matches.
Young Peoples have a single point under their name on the log and together with Busy Bees, who have three points, look to be early contenders for relegation at the end of the season.