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 Omarama Clay Cliffs.

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

Omarama Clay Cliffs

Valid Reviews

27 Valid Reviews

The Omarama Clay Cliffs experience has a total of 27 valid reviews. There are no invalid reviews 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.

Below is the distribution of ratings for the 27 valid reviews:

Rating Count Percentage
10/10 9
9/10 3
8/10 12
7/10 1
6/10 0
5/10 1
4/10 0
3/10 1
2/10 0
1/10 0

84.44% Average

The raw data average (mean) for all the Omarama Clay Cliffs valid reviews is 84.44% and is based on 27 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.

Face-to-Face Reviews

15 Face-to-Face Reviews

The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.

More about face-to-face reviews

Within the 27 valid reviews, the experience has 15 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 15 face-to-face reviews:

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

85.33% Average

The raw data average (mean) for all the Omarama Clay Cliffs face-to-face reviews is 85.33% and is based on 15 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

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 Face-to-Face Weight Relative Weight
Andrew Hammond 8/10 384 days 72.8 100%
Raphaele 9/10 658 days 35.26 48%
Fergus Power 10/10 933 days 9.16 13%
Katrina 9/10 992 days true 6.68 9%
Martin Strauss 3/10 995 days 5.07 7%
Nicole and Timm 10/10 1055 days true 5.25 7%
Michiel de Weerd 10/10 1278 days 4.64 6%
Bob 8/10 1392 days true 4.2 6%
Bobbie Jones 10/10 1425 days true 4.35 6%
Stephen Timbu 8/10 1645 days true 3.73 5%
Derick Trotter 8/10 1654 days true 3.71 5%
Jeroen 9/10 1657 days true 3.9 5%
Rahel Baufeld 5/10 1671 days true 3.14 4%
Jared and Evi 10/10 1716 days true 3.78 5%
James Webster 10/10 1992 days 3.24 4%
Matthias Thorn 8/10 2088 days 2.9 4%
Alexis Leneveu 8/10 2095 days 2.89 4%
Julian Kuemme 8/10 2369 days true 2.38 3%
Mandy Reich 10/10 2370 days true 2.5 3%
Tan 10/10 2575 days 2.1 3%
Loesje 8/10 2818 days 1.55 2%
Cuz da Maori 8/10 2849 days 1.49 2%
Gerd Pagel 10/10 3503 days true 0.29 0%
Kaddi & Grego 8/10 3856 days true 0.0 0%
Don & Alice 8/10 3859 days true 0.0 0%
Mathias 8/10 3883 days 0.0 0%
GraceB 7/10 4211 days true 0.0 0%


No Adjustment

Several adjustments to the weighted average may be added to improve relevancy and credibility. Omarama Clay Cliffs 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.