After not receiving a wildcard entry, Tomic was forced to go through the qualifying route to book a spot in the main draw of the 2020 Australian Open, however the Queenslander lost his match 7-6, 6-3.
Slovenia's Dalila Jakupovic was leading 6-4, 5-6 in her qualifier against Stefanie Vogele at Melbourne Park when she slumped to her knees at the back of the blue hardcourt suffering apparent breathing difficulties.
Polluted air caused by the bushfires raging across the country meant practice sessions were halted on Tuesday ahead of next week's Australian Open, the first Grand Slam in the tennis calendar.
The City of Melbourne issued warnings to its citizens and their pets to stay inside wherever possible.
The smoke engulfing Melbourne has travelled from East Gippsland and the air quality is expected to remain very poor to hazardous into tomorrow, according to the Victorian Environmental Protection Authority (EPA).
Players and officials made a decision to stop play at 5-5 in the second set.
Tournament organisers said last week that play would be confined to Melbourne Park's three roofed stadiums and eight indoor courts in the "unlikely case of extreme smoke conditions".
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Tennis Australia chief Craig Tiley also explained why practice was suspended on the outside courts.
"Both players are feeling the smoke so we are going to stop the match at this point", the umpire announced.
Former Wimbledon finalist Eugenie Bouchard also complained about the poor air quality, which she claimed only worsened during the match.
"We have now real-time raw data that we can collect - we have installed measuring devices on-site for air quality".
However, all scheduled matches were allowed to be played at 11am local time after the organizers said the "air quality had sufficiently improved".
"Assessing the likelihood of smoke-induced interruptions is a bit like how we treat heat and rain. Close your windows and doors to keep smoke and dust out of your home", they said in a statement.