Appleby was a member of the
Coventry Godiva Harriers and was eligible for Wales through her Welsh parentage. She subsequently represented the
1966 Welsh team at the
1966 British Empire and Commonwealth Games in
Kingston, Jamaica, participating in four
events; the
100 yards, the
220 yards, the
440 yards and the
4 × 110 yards relay, with
Gloria Dourass,
Liz Gill and
Liz Parsons. Shortly after the Games, Appleby married her coach Roy Bateman and participated under her married name thereafter. As Thelwyn Bateman she competed for Wales at multiple major cross county championships won the 3000 metres title on two occasions at the
AAA Indoor Championships and became the
British 3,000 metres champion at the
1976 WAAA Championships by virtue of being the highest placed British athlete. She went to a second Commonwealth Games, representing the
1970 Welsh team at the
1970 British Commonwealth Games in Edinburgh, Scotland. == References ==