Bloemfontein - The Warriors won their Standard Bank Pro20 encounter against the Diamond Eagles at the OUTsurance Oval in Bloemfontein by 18 runs.
The team from the Eastern Cape finished the round robin stage of the tournament as the number one team.
They will face the Eagles once again on Wednesday when they lock horns in the first leg of their semi-final in Port Elizabeth.
Craig Thyssen helped the visitors to 149/5 in their allotted 20 overs.
Thyssen, who is a former Diamond Eagle, smashed an unbeaten 41 off 18 balls before losing his wicket. Ashwell Prince also weighed in with 48 runs.
Robin Petersen was dismissed off the first ball of the match with Ryan Bailey taking a catch off the bowling of Dillon du Preez.
Jacobs (29) and Thyssen shared an unbeaten 63-run partnership for the sixth wicket. Their partnership shifted the balance of the match.
Colin Ingram (20) helped stop the Eagles' onslaught after Du Preez and Van Schalkwyk got rid of the first three batsmen for a mere 13 runs. Van Schalkwyk got rid of Justin Kreusch (3) off his first ball.
Du Preez was the pick of the bowlers for the home side. He grabbed two wickets for 21 runs. He was the only bowler who managed to get two wickets in the match. Zander de Bruyn's (1) stumps were rearranged by Du Preez. The Warriors lost both their openers with only three runs on the scoreboard.
The Eagles had to bat at a healthy tempo. A light shower in the break between innings and overcast conditions had the home side batting against the Duckworth-Lewis system as well.
Morne van Wyk (25), Dean Elgar (28) and Boeta Dippenaar (20) all made starts but couldn't manage to see their team home. Protea captain Johan Botha (1/17) played a huge role with the ball in the victory. His economical bowling helped to keep the home side under pressure.