Full name: John Ephraim "Jack" Sibbit
Gender: Male
Born: April 3, 1895 in Ancoats, Greater Manchester, Great Britain
Died: August 5, 1950 in Manchester, Greater Manchester, Great Britain
Affiliations: Manchester Wheelers, Manchester (GBR)
Country:
Great Britain
Sport: Cycling
Medals: 1 Silver (1 Total)
| Games | Age | City | Sport | Event | Team | NOC | Rank | Medal | |
|---|---|---|---|---|---|---|---|---|---|
| 1928 Summer | 33 | Amsterdam | Cycling | Men's Tandem Sprint, 2,000 metres | Great Britain | GBR | 2 | Silver | |
| 1936 Summer | 41 | Berlin | Cycling | Men's Tandem Sprint, 2,000 metres | Great Britain | GBR | 5T |
| Games | Age | City | Sport | Team | NOC | Phase | Unit | Rank | M | T | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1928 Summer | 33 | Amsterdam | Cycling | Great Britain | GBR | Final Standings | 2 | ||||
| 1928 Summer | 33 | Amsterdam | Cycling | Great Britain | GBR | Final Round | Match 1/2 | 2 | at one wheel | ||
| 1928 Summer | 33 | Amsterdam | Cycling | Great Britain | GBR | Semi-Finals | Heat One | 1 | QU | 12.2 | |
| 1928 Summer | 33 | Amsterdam | Cycling | Great Britain | GBR | Round One | Heat Two | 1 | QU | 13.2 | |
| 1936 Summer | 41 | Berlin | Cycling | Great Britain | GBR | Quarter-Finals | Heat Three | 2 | at 1 length | ||
| 1936 Summer | 41 | Berlin | Cycling | Great Britain | GBR | Round One Repêchage | Heat Three | 1 | QU/walkover | ||
| 1936 Summer | 41 | Berlin | Cycling | Great Britain | GBR | Round One | Heat Four | 2 | at ¾ length |