Name: SplitStation
Author: tfrau

SplitStation walks you through a hybrid race the way you actually race it: runs
alternating with stations, one screen, one press of START between each. It
holds two race formats and you choose one on the start screen before you begin
-- press DOWN -- so the watch is running the race you turned up for.

MEGA HYATLON H6 is six 1 km runs alternating with six stations: twelve
segments, run outdoors.

STRONG RACE is ten 500 m runs alternating with ten stations: twenty segments,
raced indoors and in pairs.

The screen shows one number, big enough to read at full heart rate, and it
changes meaning with the segment. On a run that number is the metres left. On a
station it is the target -- a ski-erg distance, a sled push, a count of burpees
or wallballs, calories on an air bike -- because a watch cannot see the erg's
display or the sled on the floor. When a measured run goes long the number
turns red and counts the metres over.

There are no pages while you race and no labels. Six values are on that one
screen at once -- heart rate, metres or reps left, split, total, lap pace and
three-second pace -- and what each one is is said by a glyph and a colour
instead of by a word, which is what bought the numbers the room to be big.
UP and DOWN are +1 and -1 on the rep stations that count themselves and do
nothing anywhere else, so there is no page to lose at 175 bpm.

Two rings, and they say different things on purpose. The outer ring is the
segment's progress. The inner ring is the target split time: solid when the
distance is measured, dashed when the watch is only estimating, so you always
know which of the two you are looking at.

Every station draws its own exercise. Not a clipart icon -- an animated figure
doing that movement, so a glance tells you where you are without reading.

At the finish, press DOWN to walk through the race. Total time, calories and
average heart rate; then every split at once, each coloured green or red
against its target; then the totals -- time spent running against time spent at
the stations, how the whole race came in against the plan, your fastest and
slowest kilometre and how much you faded; then one page per segment with its
split, its target, the race clock when it ended, its average and peak heart
rate, and its rep count. BACK returns to the top from anywhere.

WHAT IT MEASURES
- H6 runs: distance and pace from GPS
- H6 wallballs and burpee box jump-overs: reps counted from the wrist
  accelerometer. The count is a helper and not a judge -- UP and DOWN correct it
  mid-station, and the screen says BY HAND whenever the sensor is not the one
  counting
- Strong Race: nothing is measured and nothing is counted. GPS is wrong under a
  roof and a race run in pairs cannot be counted from one wrist, so every
  segment is timed, the target is shown, and you press START when you are done
- Every other station, in both formats: target shown, split timed; you press
  START when you are done

Records a normal FIT activity, saved to Garmin Connect on a single explicit
press at the end -- and for ninety seconds after the line you can still throw
it away, because a false start should not have to live in Connect for ever.
Press UP on the start screen for a fast demo lap of the whole race.

YOUR PLAN
The target for every segment is a setting, edited in Garmin Connect Mobile on
the phone: your run pace in minutes per kilometre, a target time for each
station of both formats, and the H6 rep counts. Those numbers are what the inner
ring paces against and what the finish screen judges you by, so put your own
splits in before race day.

Which race is loaded is the one setting that is also on the watch, because it
is not a number to tune but a fork in the road -- the wrong one selected is the
other race's segments on your wrist. It is on the start screen only, where
there is nothing to lose, and never during a race.

Built for one athlete, but the plan is yours and the segment list lives in one
file.

SplitStation is an indep