TheDewar Cup was a pioneering indoor tennis circuit that played a pivotal role in the evolution of professional tennis during the late 1960s and 1970s. Sponsored by the Scottish whisky company John Dewar & Sons, the circuit operated from 1968 to 1976, featuring both men's and women's singles and doubles events. Its establishment marked a significant shift towards indoor tennis, providing players with opportunities to compete in controlled environments and influencing the development of the sport.

TheDewar Cup circuit was introduced as a series of indoor tournaments held across various locations in the United Kingdom, including Aberavon, Billingham, Cardiff, Edinburgh, London, Nottingham, Perth, Stalybridge, and Torquay. These tournaments were part of the International Lawn Tennis Federation (ILTF) European Circuit from 1968 to 1969 and the Grand Prix circuit from 1970 to 1976. The events were played on carpet courts, a surface that became synonymous with indoor tennis during this era.

Each season of the Dewar Cup consisted of multiple legs, with tournaments held throughout the autumn months, typically from October to November. While each event was a standalone tournament, they collectively formed part of the Dewar Cup circuit, culminating in the Dewar Cup Finals. Initially held at the Crystal Palace in London for the first two years, the finals were moved to the Royal Albert Hall in 1970, where they remained until the circuit's conclusion in 1976.

Prior to the Dewar Cup, indoor tennis was relatively underdeveloped compared to its outdoor counterpart. The introduction of the Dewar Cup provided a platform for players to compete in indoor conditions, which were faster and more consistent due to the controlled environment. This shift not only influenced playing styles but also contributed to the evolution of tennis equipment, as manufacturers developed gear suited for indoor play.

The circuit's emphasis on indoor tournaments helped popularize the format, leading to the establishment of similar events worldwide. It also paved the way for the inclusion of indoor events in major tournaments, such as the Australian Open, which transitioned to an indoor venue in 1988. The Dewar Cup's legacy is evident in the prominence of indoor tennis in the modern era.

Year	Champions	Runners-up	Score
1971	Jaime Fillol	Gerald Battrick	2–6, 6–4, 6–3
1972	John Lloyd	Pat Cramer	4–6, 6–3, 6–2
1973	Roger Taylor	Raz Reid	6–2, 6–3

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Year	Champions	Runners-up	Score
1971	Virginia Wade	Julie Heldman	4–6, 7–5, 6–3
1972	Margaret Smith Court	Julie Heldman	7–5, 6–0
1973	Virginia Wade	Nathalie Fuchs	6–0, 6–2

Year	Champions	Runners-up	Score
1971	Françoise Dürr Virginia Wade	Evonne Goolagong Julie Heldman	6–3, 4–6, 6–2
1972	Margaret Smith Court Virginia Wade	Patti Hogan Sharon Walsh	6–3, 6–2
1973	Marita Redondo Virginia Wade	Glynis Coles Sharon Walsh	6–7, 6–3, 6–2

• Billingham Results

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