SHADOW SEASON / D1 CONTEST RECEIPT

KDEN · High ≥ 75°F

Denver, CO · 20260926 · 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 25 · 07:00 UTC
Observed day starts	Sep 26 · 07:00 UTC
Observed day ends	Sep 27 · 07:00 UTC
Unresolved contract voids	Oct 04 · 07:00 UTC

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

Scheduled opponents

AIFS Single versus ICON

IFS Ensemble versus WeatherNext 2

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

Locked forecasts

0% · NO50%YES · 100%

98%

97%

97%

96%

92%

MODEL	PROBABILITY	INITIALIZED UTC	RECEIVED UTC	CAPTURED UTC
AIFS	97%	Sep 24 · 18:00 UTC	Sep 25 · 01:30 UTC	Sep 25 · 01:30 UTC
EPS	97%	Sep 24 · 00:00 UTC	Sep 24 · 15:06 UTC	Sep 24 · 15:06 UTC
HRES	96%	Sep 24 · 12:00 UTC	Sep 24 · 22:23 UTC	Sep 24 · 22:23 UTC
ICON	92%	Sep 25 · 00:00 UTC	Sep 25 · 04:22 UTC	Sep 25 · 04:22 UTC
WN2	98%	Sep 24 · 18:00 UTC	Sep 25 · 04:53 UTC	Sep 25 · 04:53 UTC

Positions & reserved credits

YES MODEL	NO MODEL	QUANTITY	YES PRICE	YES RESERVED AT ENTRY	NO RESERVED AT ENTRY	YES / NO REALIZED P&L
AIFS	ICON	25	0.94770	23.69	1.31	+1.31 / -1.31

IFS Ensemble / WeatherNext 2: Gap below 4 percentage points.

The observation record

Finalized contract result: YES · 81°F · Sep 30 · 07:43 UTC

FIRST SEEN UTC	HIGH	SOURCE	OBSERVATION HOUR	TREATMENT
Sep 27 · 09:29 UTC	81°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:KDEN:20260926:D1