In a series of championships appearances in 2018, DeBues-Stafford competed for Canada at the World Indoor Championships and the 2018 Commonwealth Games, in neither case advancing past the heats. At the 2018 NACAC Championships in Toronto she won the bronze medal with a time of 4:07.36. While competing at the British Grand Prix on the 2018 Diamond League, she met coach Andy Young, and following discussions agreed to move to train in Glasgow, where Young's other students included Laura Muir.