SHADOW SEASON / D1 CONTEST RECEIPT

KBOS · High ≥ 74°F

Boston, MA · 20260913 · Settled

Simulation credits only. The probabilities below are locked entries; current forecasts cannot replace them.

The contract clock

MILESTONE	UTC
Published	Sep 08 · 15:49 UTC
Forecast deadline	Sep 12 · 05:00 UTC
Observed day starts	Sep 13 · 05:00 UTC
Observed day ends	Sep 14 · 05:00 UTC
Unresolved contract voids	Sep 21 · 05:00 UTC

1991–2020 ACIS daily normal, rounded at publication. Source: exact KBOS ACIS daily maximum. Observing window uses local standard time in America/New_York.

Scheduled opponents

AIFS Single versus IFS Ensemble

IFS HRES versus ICON

Bye: WeatherNext 2. An eligible bye forecast still contributes to the common-case skill table.

Locked forecasts

0% · NO50%YES · 100%

80%

67%

58%

49%

43%

MODEL	PROBABILITY	INITIALIZED UTC	RECEIVED UTC	CAPTURED UTC
AIFS	49%	Sep 11 · 18:00 UTC	Sep 12 · 01:32 UTC	Sep 12 · 01:32 UTC
EPS	67%	Sep 11 · 00:00 UTC	Sep 11 · 15:02 UTC	Sep 11 · 15:02 UTC
HRES	58%	Sep 11 · 12:00 UTC	Sep 11 · 19:23 UTC	Sep 11 · 19:23 UTC
ICON	43%	Sep 11 · 12:00 UTC	Sep 11 · 16:34 UTC	Sep 11 · 16:34 UTC
WN2	80%	Sep 11 · 12:00 UTC	Sep 11 · 22:59 UTC	Sep 11 · 22:59 UTC

Positions & reserved credits

YES MODEL	NO MODEL	QUANTITY	YES PRICE	YES RESERVED AT ENTRY	NO RESERVED AT ENTRY	YES / NO REALIZED P&L
EPS	AIFS	50	0.58280	29.14	20.86	-29.14 / +29.14
HRES	ICON	50	0.50425	25.21	24.79	-25.21 / +25.21

The observation record

Finalized contract result: NO · 70°F · Sep 17 · 05:02 UTC

FIRST SEEN UTC	HIGH	SOURCE	OBSERVATION HOUR	TREATMENT
Sep 14 · 09:08 UTC	70°F	RCC-ACIS StnData	24	Provisional reading

Inspect the evidence

Model versions and upstream calibration versions are unknown in this trial. The JSON contains the full frozen policy, entries, positions, and observation corrections.

Download this contest receipt (JSON) ↗

Contest ID: shadow-20260908-v1:KBOS:20260913:D1