Bradshaw's Junior career took off when she broke the British Junior pole vault record in June 2010, with a vault of 4.35m. A month later, she competed at the 2010 World Junior Championship, in which she was the favourite for the gold medal. However, she failed to vault higher than 4.15m, resulting in a bronze medal behind Angelica Bengtsson and Victoria von Eynatten, who vaulted 4.25m and 4.20m respectively.