Melissa Hauschildt (née Rollison, born 13 April 1983 in Adelaide) is an Australian professional triathlete and former middle-distance runner.

She was soon approached by coach Brian Chapman and in the following year won the Australian Cross Country Championships (Under 12).

The biggest steeplechase competition to date was set for the 2001 Goodwill Games where the field included world No.

[6] In December 2001, Hauschildt won the Zatopek Junior 3000m in a personal best time of 9:03.64 and, in the days that followed, ran the fastest 800m (2:06.10) and 1500m (4:15.67) in the 25-year history of the Australian All Schools Championships.

Hauschildt ran strongly during the 2003–04 domestic season, slashing her 5000m best to 15:55.19 and placing third in the Australian Olympic Trials.

Injury resurfaced taking Hauschildt out of the 2004 Olympic Games and she did not run again until January 2006, when re-uniting with coach Nic Bideau.

In November 2006, Hauschildt required surgery on a ruptured hamstring tendon sustained during training in the UK earlier in the year.

In early March she travelled to Stromlo Forest Park in Canberra to compete in the Australian selection trials for the IAAF World Cross Country titles.

She ran strongly to finish 26th at the IAAF World Cross Country Championships in Edinburgh, Scotland, helping the team secure a bronze medal.

The most significant result to date came when she finished the year with a 2nd place in the Asia Pacific 70.3 Championships in Phuket in December.

Hauschildt continued her winning streak into 2013 with victories over the longer course triathlons at the Australian Long Course Championships, Abu Dhabi International Tri, Koh Samui Tri and the ITU Long Distance Triathlon World Championships in Belfort, France.

Unfortunately the remainder of the 2014 season was derailed by a severe injury to the chest from the hands of a freak massaging slip-up just days before the 70.3 World Championships.

The misdirected force to the chest wall from the massage dislocated Melissa's rib from its attachment at the sternum, causing the surrounding connective tissue and intercostal muscle fibres to tear away.

The result left an unstable, subluxing rib that continued to painfully click in and out of place with the movement of each heart beat.

[11] After 8 weeks recovering, Hauschildt made an appearance in few end-of-year races to salvage an otherwise disappointing 2nd half of 2014.

After the surgery was deemed unsuccessful, she returned to the operating table in June to have it repaired with a vein patch angioplasty to the common and external iliac arteries.