The 18-year-old had led after the first four rounds of the qualifying competition but had to surrender top spot to Danish amateur Nanna Madsen who closed with a stunning 63 to finish two shots clear of Hall on 17 under.
Bournemouth-based Hall’s closing 71 was still easily good enough to secure her place on Tour next season, though, with the top 30 and ties all handed a spot.
“I thought there would be a four under, five under and I thought if I shot one or two under that would do it,” she said.
“I didn’t play that well but I didn’t play that badly either.
“I’m definitely pleased to have my tour card and I’ve done what I needed to do at the end of the day.”
Hall was one of a host of Britons to make the grade with fellow Englishwomen Emma Goddard, Alex Peters and Amber Ratcliffe all making it alongside Scots Kelsey Macdonald, Heather Macrae and Laura Murray.