Age groups, and the date a band is counted from

KRSS ACADEMY LTD runs four bands. A child goes into the band that holds their age on the cut-off date for the season, and stays in it for the whole season even if a birthday moves them during it — because a group that re-sorts itself every few weeks never settles, and a child who leaves friends mid-season usually leaves the session too.

The four bands on this floor

Foundation, 4 to 6: Forty-five minutes. Half the floor, four bays, and the game block played three against three with no goalkeeper. One coach to every six children on this band, and a second adult on the floor at all times.
Development, 7 to 9: Sixty minutes. Full floor. The skill block gets its three steps in full for the first time, and the game block becomes two games running at once across the court.
Intermediate, 10 to 12: Sixty minutes. Same shape, harder conditions: two-touch limits, a defender who plays properly from the start of the live step, and scores called but not written down.
Senior, 13 to 16: Seventy-five minutes. The extra fifteen go to the skill and game blocks. The game is played along the floor rather than across it, one pitch, five a side, and the cool-down includes the question a coach asks only this band: what would you change about that session.

Why the cut-off exists at all

A band needs a date or it has no edges. The academy counts a child's age on the first day of the season the place is offered for, writes that date on the offer, and uses the same date for every child in that season. A child who turns seven in February stays in foundation until the season ends, then moves up with the rest of the group rather than alone.

Two things are decided by a coach and not by the date. A child at the top of a band who is finding every session easy can be asked to train up for a block at a time, always with the parent told first. A child who has just moved up and is struggling with the longer session can drop back for the rest of the season, which is a routine arrangement here and is never described to the child as being sent down.

Band finder: age on a cut-off date

Type a date of birth and the cut-off date for the season, then the bands you want tested. The finder prints the subtraction it does, says whether the birthday had passed by the cut-off, and names which of the bands typed contains the result. The bands below are the academy's own, and you can replace them with any others to see where a date falls.

Date of birth Cut-off date Bands, one to a line

Working — age on the cut-off date

Date of birth12 April 2017

Cut-off date1 September 2026

Years between2026 − 2017 = 9

The birthday on 12 April 2026 falls on or before the cut-off, so that figure stands.

Age on the cut-off date: 9 years, 4 months and 20 days.

Bands read4–6 Foundation · 7–9 Development · 10–12 Intermediate · 13–16 Senior

9 sits inside 7–9 Development.

The bands are the ones typed into the box above. No governing body cut-off is applied here, and the sum places nobody in a group.

The worked example is printed in the page. The fields recalculate it in the browser; with scripting off, the example stands as written.