References 280% CONFIDENCEOverall confidence: 80%How well the pin's source and references back up its dates.Weighted average of how firmly 2 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins at 75% confidence or better
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]75%costco.com/f/-/new-opening-lees-summitcostco.com· Posted Sep 21, 2026· Starts Oct 2, 2026 ✓· 50% of score
Costco's own new-opening page for the site carries the date, reported as "Oct. 2, 2026" after the original August date moved.
- [2]85%Costco sets October opening for new Lee's Summit storefox4kc.com· Added Sep 21, 2026· 50% of score
Local reporting that fixed the new date and recorded the slip from the original August opening.[1]
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