Bob Sreenan had the following podium finishes at major championships: 2nd in the 1958 British Empire and Commonwealth Games 4×220 yards Freestyle Relay (with Ian Black and the non-Olympians Athole Still and James Leiper). Sreenan also finished fifth in the 1650 yards freestyle and was eliminated in the heats of the 440 yards at the 1958 British Empire and Commonwealth Games. In the British Empire and Commonwealth Games he competed for Scotland.
|1952 Summer||18||Helsinki||Swimming||Men's 1,500 metres Freestyle||Great Britain||GBR||4 h4 r1/2|
|1960 Summer||26||Roma||Swimming||Men's 1,500 metres Freestyle||Great Britain||GBR||4 h2 r1/2|
|1952 Summer||18||Helsinki||Swimming||Great Britain||Round One||Heat Four||4||19:59.2|
|1960 Summer||26||Roma||Swimming||Great Britain||Round One||Heat Two||4||18:57.1|