Ranking Score Explained

Hi there, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.

The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!

We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?

Below you'll find details around some of the important factors that went into calculating the ranking score for Winchester Bridge.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.

Nick Morrison's avatar

Nick Morrison

Rankers owner

Winchester Bridge

Valid Reviews

18 Valid Reviews

The Winchester Bridge experience has a total of 19 reviews. There are 18 valid reviews that are included when calculating the ranking score and 1 invalid review that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.

Within these 18 valid reviews, the experience has 1 face-to-face review collected during interviews by our team.

Below is the distribution of ratings for the 18 valid reviews:

Rating Count Percentage
10/10 2
9/10 5
8/10 5
7/10 3
6/10 0
5/10 3
4/10 0
3/10 0
2/10 0
1/10 0

78.33% Average

The raw data average (mean) for all the Winchester Bridge valid reviews is 78.33% and is based on 18 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.

Weighted Average


Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.

Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.

Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.

Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.

Reviewer Rating Age Relative Weight
Jen 8/10 307 days 100%
Zeta Griffiths 10/10 642 days 46%
Kate 9/10 733 days 31%
Inna 10/10 946 days 9%
Matt 9/10 1007 days 6%
Lilith Prins 8/10 1322 days 4%
Judy Aspinall 5/10 1564 days 3%
Thomas Weiss 8/10 1631 days 3%
Aidan Byrne 5/10 1784 days 2%
Sarah Hammond 9/10 1870 days 3%
Marina 7/10 2008 days 2%
Neil 9/10 2056 days 3%
Matt Newby 8/10 2133 days 2%
James Webster 7/10 2310 days 2%
Lorna fraser 5/10 2590 days 1%
Te-Ana and Mark 9/10 2692 days 0%
Matt Williams 7/10 2893 days 0%
Mette, Bo, Viktor & Olivia Seligmann 8/10 3047 days 0%


No Adjustment

Several adjustments to the weighted average may be added to improve relevancy and credibility. Winchester Bridge does not meet the criteria for any of these adjustments to apply.

Final Ranking Score


The final ranking score once rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.