Age-group Start
From Openwaterpedia
noun - An age-group start is when open water swimmers are divided by specific ages at the start of an open water swimming competition (as opposed to seeded starts or mass starts).
Usage
Swimmers between the ages of 20-39 gathered for an age-group start near the pier.
Origin
bef. 1150; (v.) ME sterten to rush out, leap (c. MHG sterzen); r. OE styrtan (attested once), c. G stürzen; (n.) ME stert(e) sudden jerk, leap, deriv. of the v.]
