How are the age groups divided?

There are eleven age groups within the individual divisions, five age groups within the doubles division and 2 for the Relay. The age groups are broken down as follows:

Individual Competition

16-24
25-29
30-34
35-39
40-44
45-49
50-55
55-59
60-64
65-69 (this is the oldest age group for the Pro division)
70+

Doubles Competition (based on the average age of each pair)

16-29
30-39
40-49
50-59
60-70+

Relays

16-39
40+