The 2017–18 Sunfoil 3-Day Cup was a first-class cricket competition that took place in South Africa from 12 October 2017 to 15 April 2018. The competition was played between the thirteen South African provincial teams and Namibia. Unlike its counterpart, the Sunfoil Series, the matches were three days in length instead of four. The tournament was played in parallel with the 2017–18 CSA Provincial One-Day Challenge, a List A competition which features the same teams.
Points table
Pool A Team qualified for the final Pool B Team qualified for the final ==Fixtures==
Fixtures
October 2017 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- November 2017 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- December 2017 ---- ---- ---- ---- ---- ---- January 2018 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- February 2018 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- March 2018 ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ==Final==