| Personal information | ||||
|---|---|---|---|---|
| Batting style | Right-hand bat | |||
| Bowling style | Right-arm bowler | |||
| International information | ||||
| National side | South African | |||
| Career statistics | ||||
| Competition | Tests | First-class | ||
| Matches | 18 | 123 | ||
| Runs scored | 977 | 7730 | ||
| Batting average | 28.73 | 40.05 | ||
| 100s/50s | 1/5 | 17/32 | ||
| Top score | 141 | 265* | ||
| Balls bowled | 19 | 49 | ||
| Wickets | 1 | 1 | ||
| Bowling average | 7.00 | 35.00 | ||
| 5 wickets in innings | 0 | 0 | ||
| 10 wickets in match | 0 | 0 | ||
| Best bowling | 1/7 | 1/7 | ||
| Catches/stumpings | 7/- | 57/1 | ||
| Source: Cricinfo, | ||||
Ivan Julian 'Jack' Siedle (born 11 January 1903 in Berea, Natal, died 24 August 1982 in Bulwer, Natal) was a South African cricketer who played in 18 Tests from 1928 to 1936.