Stephan was first selected for Australian representation in a
coxless four contesting the 2012
World Rowing U23 Championships in Trakai, Lithuania. Stephan stroked the four to a silver medal. After the Olympics Stephan continued to compete at the highest level and in 2017 she was selected at bow in Australia's
coxless four with
Molly Goodman,
Katrina Werry, and
Sarah Hawe. They competed at the World Rowing Cups II and III and as a crew, they didn't lose a race in the international season. With Katrina Werry changed out for
Rosemary Popa the world champion four stayed together into 2018 and started their 2018 international campaign with a gold medal win at the World Rowing Cup II in Linz, Austria. The following week back in the coxless four, Stephan won another gold at the World Rowing Cup III in Lucerne. The four were looking for a top eight finish at the 2019 World Championships to qualify for the
Tokyo Olympics. They won their heat and semi-final, thereby qualifying the boat for
Tokyo 2020. This combination won the 2021 Australian national title in the women's coxless four. In Tokyo the four won their heat rowed two hours after Morrison and McIntyre's heat in the pair, and progressed straight to the A final. In the final with Stephan making the race calls from the bow, they led from the start, were challenged hard to the finish by the Dutch crew but took the gold in an Olympic best time. She rowed in Australian women's coxless four at the
World Rowing Cup II in Poznan to a gold medal victory. At the
Rowing World Cup II in Varese, Italy they raced as Australia's W4- entrant. They made the A final and won a bronze medal. At 2023's RWC III in Lucerne, that unchanged four again raced the W4-. In the A final they led through to the 1800m mark but were overrun by Romania and finished with the silver medal. Their two medal wins at RWC II and III won them the 2023 RWC points score trophy for the W4-. That crew was selected intact as Australia's coxless four for the
2023 World Rowing Championships in Belgrade Serbia. They placed second in their heat. They placed 3rd in the A/B semi-final at which point they qualified an Australian W4- boat for the
2024 Paris Olympics. In the A final the four finished fifth, giving them a fifth place world ranking from the regatta. ==Accolades==