# The Big Lost — 2027 edition

[Canonical guide](https://gravelcal.com/events/the-big-lost/2027/) · [Edition JSON](https://gravelcal.com/api/v1/events/the-big-lost/2027.json) · [Calendar](https://gravelcal.com/calendar.md)

- Event ID: the-big-lost
- Edition ID: the-big-lost/2027
- Location: Sun Valley, Idaho, USA
- Calendar state: upcoming
- Lifecycle: scheduled
- Date: 2027-09-08 to 2027-09-11 [1](https://biglostidaho.com/)
- Event timezone: America/Boise (calendar dates only; no start time is inferred)
- Date note: Announced multi\-day event window\. Individual 2027 stage and main\-ride dates are unconfirmed\.

The Big Lost is the renamed Rebecca’s Private Idaho event, produced by Bike Monkey\. Its announced 2027 dates cover a multi\-day gravel event in Sun Valley; current course details remain unconfirmed\. [1](https://biglostidaho.com/) [2](https://biglostidaho.com/dispatches/rpi-comes-to-a-close)

## Course options

Course options, distances and climbing are unconfirmed for this edition.

## Practical information

- Support: Unconfirmed for this edition.
- Entry cost: Entry cost and mandatory fees are unconfirmed for this edition.
- Effective registration status: not-open
- Registration qualification: Recorded source status only, not a live ticket\-availability check\. Confirm with the organizer\.
- Recorded registration status: not-open [3](https://biglostidaho.com/register) [4](https://biglostidaho.com/)
- Recorded registration note: The organizer states that registration is not yet open for 2027\. An opening date is not announced\.
- [Official event website](https://biglostidaho.com/)
- [Recorded official registration information](https://biglostidaho.com/register)

## Sources and freshness

Checked dates record our source inspections, not organizer confirmation of every detail. Source notes may explicitly limit claims to historical editions.

### Source 1: The Big Lost — official 2027 announcement

- Source ID: s1
- [Source](https://biglostidaho.com/)
- Checked: 2026-10-08
- Edition/evidence note: Header explicitly September 8–11, 2027 and Sun Valley\. Lower route prose still explicitly says new for 2026; no routes, stages, ascent or support transferred\.

### Source 2: Bike Monkey — You have entered The Big Lost

- Source ID: s2
- [Source](https://biglostidaho.com/dispatches/rpi-comes-to-a-close)
- Checked: 2026-10-08
- Edition/evidence note: September 14, 2026 organizer announcement explicitly identifies Rebecca’s Private Idaho as now The Big Lost and announces 2027 edition; establishes renamed identity, not a second race\.

### Source 3: The Big Lost — current registration information

- Source ID: s3
- [Source](https://biglostidaho.com/register)
- Checked: 2026-10-11
- Edition/evidence note: Current 2027 source supports only the changed fields listed in the correction manifest; inherited source snapshots remain unchanged\. Checked October 11, 2026 in America/Vancouver; evidence captured on October 12 UTC\.

### Source 4: The Big Lost — current organizer information

- Source ID: s4
- [Source](https://biglostidaho.com/)
- Checked: 2026-10-11
- Edition/evidence note: Current 2027 source supports only the changed fields listed in the correction manifest; inherited source snapshots remain unchanged\. Checked October 11, 2026 in America/Vancouver; evidence captured on October 12 UTC\.

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Independent curated research, not a complete calendar. Confirm current course, costs and arrangements with the organizer before entering.
Generated: 2026-10-28T00:35:42.663Z. Generation does not refresh the source-check dates above.