Juma Ikangaa International competitions International competitions

| Year_ | Competition | Venue | Position_ | Event | Notes_ |
|---|---|---|---|---|---|
| 1982 | African Championships | Cairo, Egypt | 1st | Marathon | 2:21:05 |
| 1982 | Commonwealth Games | Brisbane, Australia | 2nd | Marathon | 2:09:30 |
| 1983 | World Championships | Helsinki, Finland | 15th | Marathon | 2:13:11 |
| 1983 | Melbourne Marathon | Melbourne, Australia | 1st | Marathon | 2:13:50 |
| 1984 | Tokyo Marathon | Tokyo, Japan | 1st | Marathon | 2:10:49 |
| 1984 | Olympic Games | Los Angeles, United States | 6th | Marathon | 2:11:10 |
| 1984 | Melbourne Marathon | Melbourne, Australia | 1st | Marathon | 2:15:31 |
| 1986 | Tokyo Marathon | Tokyo, Japan | 1st | Marathon | 2:08:10 |
| 1986 | Fukuoka Marathon | Fukuoka, Japan | 1st | Marathon | 2:10:06 |
| 1987 | World Championships | Rome, Italy | 6th | Marathon | 2:13:43 |
| 1987 | Beijing Marathon | Beijing, PR China | 1st | Marathon | 2:12:19 |
| 1988 | Olympic Games | Seoul, South Korea | 7th | Marathon | 2:13:06 |