The current Loughborough student finished 19th in women’s 10km marathon swim in tough conditions in Tokyo Bay. Despite the early morning start, water temperatures still rose to 30 degrees in what is arguably one of the most brutal sports at the Olympic Games.
Dearing’s legacy will certainly live long and following the race she told the BBC that the sport is "available to anyone".
Elsewhere, GB women’s hockey team suffered heartbreak after a resounding 5-1 loss to the Netherlands at the semi-final stage.
Loughborough-linked Giselle Ainsley scored Team GB’s consolation goal but sadly the side won’t have the chance to defend its title from Rio 2016.
Great Britain will now play for a bronze medal versus India on Friday (02:30 BST).
In the water, University alumnus Liam Heath cruised through his men’s K-1 200m canoe sprint quarter-final, going fastest in an Olympic-best 33.985.
The reigning champion will now compete in the semi-finals tomorrow at 01:30 BST.
In the women’s 400m semi-final, former Loughborough College learner Ama Pipi recorded 51.59 against a strong field in her semi-final heat. Unfortunately, it wasn’t enough for the 25-year-old to progress to the final round.