Medals: 1 Bronze (1 Total)
Susan Roberts finished fourth in the 1958 British Empire and Commonwealth Games 4×110 yards freestyle relay (with Natalie Myburgh and the non-Olymians M.M. Hogg and S.G. Wetton) and fifth in the 4×110 yards medley relay (with Natalie Myburgh and the non-Olymians J. Rocchi and S.G. Wetton). In the 1958 British Empire and Commonwealth Games 110 yards freestyle, 440 yards freestyle, and 110 yards backstroke Roberts was eliminated in the heats.
|1956 Summer||17||Melbourne||Swimming||Women's 100 metres Freestyle||South Africa||RSA||7 h2 r2/3|
|1956 Summer||17||Melbourne||Swimming||Women's 400 metres Freestyle||South Africa||RSA||4 h3 r1/2|
|1956 Summer||17||Melbourne||Swimming||Women's 4 × 100 metres Freestyle Relay||South Africa||RSA||3||Bronze|
|1956 Summer||17||Melbourne||Swimming||South Africa||Semi-Finals||Heat Two||7||1:06.6|
|1956 Summer||17||Melbourne||Swimming||South Africa||Round One||Heat Four||4||QU||1:07.9|
|1956 Summer||17||Melbourne||Swimming||South Africa||Round One||Heat Three||4||5:16.8|