| Full name: | Dianna Souness Duncan |
| Born: | 30th September 1946, Dunedin, Otago, New Zealand |
| Batting: | Left-hand batter |
| Bowling: | Left-arm medium pace |
| Wicket-keeper | |
| Biography: | married name Coster |
| Teams: | Otago Women (Women's First-Class: 1964/65-1969/70); All teams |
| Lists of matches and more detailed statistics | |
| Women's First-Class Career Batting and Fielding (1964/65-1969/70) | ||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | Ct | ||
| Otago Women | 21 | 32 | 6 | 177 | 22 | 6.80 | 0 | 0 | 9 | |