The Two Oceans Marathon is a 56 kilometres (35 mi) ultramarathon and 21 kilometres (13 mi) half-marathon held annually in Cape Town, South Africa on the Saturday(Ultra) and Sunday(Half) the weekend after Easter weekend.(previously was on Easter weekend)

Irvette van Zyl is a South African long-distance runner and women's 50km ultramarathon world record holder. She competed in the marathon at the 2012 Summer Olympics but did not finish the race. She has twice participated in the London Marathon and set her previous best time of 2:31:26 hours there in 2013. In 2021 she improved this time by almost 3 minutes to 2:28:40 at the Xiamen Marathon in Siena, Italy and again in 2022 by more than 2 minutes to 2:26:11 at the Valencia Marathon in Spain.