Jenny Duncalf
Jennifer Duncalf is an English professional squash player. She reached a career-high world ranking of World No. 2 in December 2009.
Duncalf was born in Haarlem, Netherlands. As a junior player, she won the European Junior Championship title. Duncalf won the European Individual Championship title in 2006 and 2007, and the British National Championship title in 2007 and 2009. She was also a member of the England team which won the World Team Squash Championships in 2006. In 2008, she finished runner-up at the British Open. Duncalf ends the year 2009 on a high when she won three titles in a row—the Soho Square Open, the US Open and the prestigious Qatar Classic.
Duncalf was a pupil at Harrogate Grammar School where she attended from 1994-2001.
Duncalf made an appearance on the BBC2 quiz show Eggheads along with four other top-ranked British players, but they were unable to beat the show.
In October 2010, in the women's singles final of the 2010 Commonwealth Games in Delhi, Duncalf was defeated by Nicol David 11–3, 11–5, 11–7 in 40 minutes to settle for the silver medal.
Duncalf is openly lesbian, and her girlfriend is fellow top squash player and former world no.1 Rachael Grinham.
World Open">World Open (squash)">World Open
Finals: 1 (0 title, 1 runner-up)
| Outcome | Year | Location | Opponent in the final | Score in the final |
| Runner-up | 2011 | Rotterdam, Netherlands |  Nicol David | 11–2, 11–5, 11–0 |
Major World Series">WSA World Series">World Series final appearances
British Open">British Open Squash Championships">British Open: 1 finals (0 title, 1 runner-up)
| Outcome | Year | Opponent in the final | Score in the final |
| Runner-up | 2008 | Nicol David | 9–1, 10–8, 9–0 |
Hong Kong Open">Hong Kong Open (squash)">Hong Kong Open: 1 final (0 title, 1 runner-up)
| Outcome | Year | Opponent in the final | Score in the final |
| Runner-up | 2010 | Nicol David | 11-6, 12-10, 12-10 |
[Qatar Classic]: 1 final (1 title, 0 runner-up)
| Outcome | Year | Opponent in the final | Score in the final |
| Winner | 2010 |  Rachael Grinham | 11-5, 11-3, 11-3 |
Malaysian Open">Malaysian Open Squash Championships">Malaysian Open: 2 finals (0 title, 2 runner-up)
| Outcome | Year | Opponent in the final | Score in the final |
| Runner-up | 2010 | Nicol David | 11-6, 6-11, 11-7, 10-12, 11-5 |
| Runner-up | 2011 | Nicol David | 11-6, 12-10, 11-5 |