Domestic Championships Record
2001 – AAA U20 Championships gold
2002 – AAA U20 Championships gold, AAA Indoor U20 Championships gold
2003 – AAA U20 Championships gold, AAA Indoor U20 Championships gold
2004 – AAA U23 Championships gold
2005 – BUSA Indoor Championships silver, AAA Indoor Championships bronze
2006 – AAA Indoor Championships gold, AAA Championships silver
2007 – Norwich Union European Indoor Champs Trials gold, Norwich Union World Champs Trials gold
2008 – Norwich Union World Indoor Champs Trials gold, Olympic Trials gold
2009 – Aviva UK Indoor Championships gold, Aviva World Champs Trials gold
2010 – Aviva European Trials & UK Championships gold, Aviva World Indoor Trials & UK Championships gold
2011 – Aviva European Trials & UK Championships silver

Major Championships and International Record
2010 – World Indoor Championships 9th q. European Championships 6th. Commonwealth Games bronze. European Team Championships 7th
2009 – World Championships 6th. European Indoor Championships 6th
2008 – Olympic Games 7th qB
2007 – World Championships 13th q
2006 – European Championships 8th q. Commonwealth Games 7th
2003 – European Junior Championships 11th
2002 – World Junior Championships 7th

Dennison was born in South Africa and her mother swam for Zambia. She is a former gymnast and was the first British junior to vault over 4.00m.

She finally broke Janine Whitlock's British indoor record at the 2009 Aviva UK Indoor Champs, before improving the mark one week later at the Aviva Birmingham Indoor Grand Prix with a height of 4.46m, despite having back surgery in the off-season. In Turin at the European Championships, Dennison placed sixth, which surpassed many people's predictions. Dennison capped off a fine indoor season with an outright British record in Oyannax, vaulting 4.49m, to improve Whitlock's record by 2cm.

She has improved the British record nine times in 2009 and at the World Championships in Berlin she finished in an excellent sixth place. In Szczecin, Poland she took the British record to new heights again with a clearance of 4.60m in September. In 2010 she finished in 6th place in the European Championships and at the Commonwealth Games in Delhi as pre-event favourite finished in a disappointing bronze medal position.

Kate hails from a sporty family and once finished 4th in the U12 National Gymnastic Championships. Her brother was an international gymnast when younger.

She has a degree in psychology from Staffordshire University. Her hobbies outside of athletics include: watching films, photography and has also down some rock climbing.