Agility Day Planner estimates walk & start times to help plan your day

A red cocker spaniel clearing a jump in full stride, its handler running alongside, in an indoor agility arena

How long until the next class? enter what you can see from the ring

Class Grade Height

What can you see? I have counted the dogs still to run The board and the entry count

Dogs still to run Board says final call? Measured as about 6 still to run, not one.

Everything below is what the calculator assumes. Nothing here needs a ring plan or a show, so it works anywhere — including shows this app knows nothing about.

Seconds per dog the whole cycle, not the run

Class	G1	G2	G3	G4	G5	G6	G7
Agility	89	88	87	86	85	84	83
Jumping	82	81	80	79	78	77	76
Steeplechase	76	75	74	73	72	71	71
Helter skelter	76	75	74	73	72	71	71

For a dog that actually runs. Course times were 45–51 s on the sampled block, so roughly 40 s of every slot is turnaround: dog in, dog out, judge reset, scribe.

Corrections on top of the per-dog figure

Entries that never run	−10%
Grade	-1.2% per grade
Fixed cost per class	+2.5 min
Next height, same course	+5 min
Course rebuilt	+25 min

A grade band — G1-3, 5,6,7, C3-5 — is taken at its middle: a combined class runs at about the average of its field, so G1-3 counts as grade 2 and G5,6,7 as grade 6. Combined or split makes no difference to time, only to who gets the rosettes. The no-show figure applies to entry counts only; dogs you have counted at the ring are all going to run. It was measured on a weekend that was 26.9 °C with no rain, so it is the dry-weather rate. A wet day withdraws more, and classes then run quicker than this model expects.

Height measured from 1,080 published runs

Height	Run time	Slot
Large	-4%	×0.984
Intermediate	-5%	×0.978
Medium	+1%	×1.006
Small	+10%	×1.045

On the same course, Small dogs run about 10% slower than the course block's median and Large and Intermediate 3–5% faster — a 13% spread, across every course block of the calibration show, and the judges' own course times say the same. Only the run scales with height; the turnaround does not, and it is over half the slot. So a 13% spread in run time is about a 6% spread in the slot, which is what the factors are. It makes almost no difference to start-time accuracy, because heights alternate within a ring and the differences cancel down it; it makes a couple of minutes' difference to how long one Small class takes. One honest caveat: the same arithmetic predicts the jumping factor to within a point, but for height the class-level data is too thin to confirm it — the factors are derived from run times, not yet measured on class durations.