Tracks live horse-racing win odds across nine countries (Japan, France, UK, Ireland, USA, Australia, Germany, South Africa, New Zealand) for races not yet off, and flags implied-probability steamers and drifters between runs. International sibling of Horse Racing Pulse.
Outsider steamers are now caught. The signal used to fire only on an
absolute move of movement_threshold_pct implied-probability points, which
is blind to the classic outsider steam: 50/1 → 20/1 is only +3 points but
+150 %. A second rule now fires when the implied probability moves by at
least movement_relative_pct (default 30 %) of its previous value; moves
on 200/1+ shots are ignored as noise. Signal rows carry trigger
(absolute | relative) and relative_change_pct. Set
movement_relative_pct: 0 to keep the old behaviour.
0.2.7 — Cold review (09/09/2026)
Fixed
The steamer was the row max_results cut. Snapshots were emitted
first; with the default cap (15) and up to nine markets × 15 races, a run
with one genuine steamer delivered 15 snapshots and no signal. Signals now
come first.
A market whose source failed lost its whole odds history for the next
run — with nine sources, one of them failing on a given run is common, and
every such run reset that market's baseline to zero. Horses not seen this
run are now carried forward for 12 h.
Changed
History entries carry a seen_at timestamp; the pre-upgrade flat layout
is still read for one run.
0.2.0 — 2026-08-28
Reliability fix — every run now returns a result.
Racing has long dead windows (overnight, between meetings, off-season per
country) where no race has open win odds yet, and on a quiet run nothing
moves. Previously the Actor pushed nothing in those cases, which made the
run look like a failure. It now returns a single lightweight status row
with a clear message ("No upcoming races with open win odds right now" or
"Scanned N races — no significant odds movement right now") so every
scheduled run comes back clean.
0.1.x — 2026-07 → 2026-08
Multi-market horse-racing odds movement (steamers & drifters): JP, FR, UK,
IE, US, AU, DE, ZA, NZ.
Hardened input parsing and history storage so a bad optional input or a
key-value store hiccup can no longer fail a run.
