Ranking Score Explained

G'day 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 Gabriels Gully Historic Reserve.

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.

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Cymen Crick

Rankers Owner

Gabriels Gully Historic Reserve

Valid Reviews

18 Valid Reviews

The Gabriels Gully Historic Reserve 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 8
9/10 6
8/10 2
7/10 1
6/10 0
5/10 0
4/10 1
3/10 0
2/10 0
1/10 0

89.44% Average

The raw data average (mean) for all the Gabriels Gully Historic Reserve valid reviews is 89.44% 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
Jim H 10/10 221 days 100%
Sylvia 9/10 586 days 49%
Tracy Tanner-Doyle 8/10 708 days 29%
Just a guy 9/10 892 days 12%
M&P 10/10 921 days 10%
The Morris’s 10/10 1013 days 6%
A&E 10/10 1044 days 5%
Grum 10/10 1348 days 4%
Laurie & Kaye, NSW, Australia. 9/10 1378 days 4%
WATERS 10/10 1439 days 4%
J wells 8/10 1439 days 4%
Tom 9/10 1562 days 4%
Bronwen Surgey 10/10 1636 days 3%
Alva Feldmeier 9/10 2641 days 1%
Erica b 9/10 2688 days 1%
R Deano 10/10 2870 days 1%
Helen 4/10 3084 days 0%
Trif 7/10 3843 days 0%


No Adjustment

Several adjustments to the weighted average may be added to improve relevancy and credibility. Gabriels Gully Historic Reserve does not meet the criteria for any of these adjustments to apply.

Final Ranking Score


The final ranking score once any adjustments, ratings, and 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.