Baptiste was born in
St. Vincent and was a member of the
Wolverhampton & Bilston Athletics Club. She emerged in 1983, winning the
AAAs indoor 200 m title, before breaking the UK indoor record with 23.37 secs to win a silver medal at the
European Indoor Championships in Budapest, the winner was
Marita Koch. Later that year, she competed at the
World Championships in Helsinki, where she won a silver medal in the 4 x 100 metres relay, running the first leg. Her teammates were
Kathy Cook,
Bev Callender and
Shirley Thomas. They ran 42.71 secs, finishing behind the East Germans and just ahead of the fast finishing Jamaicans. She also reached the semi-finals of the 200 metres. Baptiste reached the 200 metres semi-finals at the
1984 Los Angeles Olympics, running a lifetime best of 22.86 secs. She improved her own UK indoor record to 23.33 secs in Stuttgart in 1985. She went on to finish fourth in the 200 metres final at the
1985 European Indoor Championships. Her 23.33 would remain the national indoor record for nine years, until
Katharine Merry ran 23.00 in 1994, in Glasgow. In 1986, Baptiste represented
England at the won a
Commonwealth Games in Edinburgh and won the gold medal in the 4 × 100 m relay, along with
Paula Dunn, Kathy Cook and
Heather Oakes. Baptiste became the
British 200 metres champion after winning the British
WAAA Championships title at the
1987 WAAA Championships and competed that year at the
World Championships in Rome as a member of the sprint relay squad. ==Personal bests==