Stella Wonruku gained her first international experience in 2018 at the U20 World Championships in Tampere , where she reached the semi-finals in the 400-meter run , where she was eliminated with 54.32 seconds. At the IAAF World Relays 2019 in Yokohama , she was eliminated with the 4-by-400-meter relay with 3: 35.02 minutes in the lead-up and then reached the semi-finals at the Africa Games in Rabat over 400 meters retired with 54.11 s. In addition, she won the bronze medal behind Nigeria and Botswana with the relay in 3: 32.25 minutes.
Personal best
200 meters: 24.10 s (+1.7 m / s), July 26, 2019 in Kampala