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 Sea Kayak Fiordland.

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.

Cymen Crick's avatar

Cymen Crick

Rankers Owner

Sea Kayak Fiordland

Valid Reviews

35 Valid Reviews

The Sea Kayak Fiordland experience has a total of 36 reviews. There are 35 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.

Below is the distribution of ratings for the 35 valid reviews:

Rating Count Percentage
10/10 14
9/10 12
8/10 5
7/10 3
6/10 0
5/10 0
4/10 0
3/10 0
2/10 1
1/10 0

88.86% Average

The raw data average (mean) for all the Sea Kayak Fiordland valid reviews is 88.86% and is based on 35 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

27 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 35 valid reviews, the experience has 27 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 27 face-to-face reviews:

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

89.26% Average

The raw data average (mean) for all the Sea Kayak Fiordland face-to-face reviews is 89.26% and is based on 27 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 Relative Weight
Jonathan 9/10 3202 days 76%
Verena 9/10 3407 days 0%
Anja S 10/10 3407 days 0%
Pete & Pat Etheridge 8/10 3790 days 90%
Marian Stolker 8/10 3797 days 90%
budge69 10/10 3810 days 100%
Julia Edman 10/10 3855 days 100%
Nika 10/10 4116 days 100%
Chrissy Crebas 9/10 4132 days 100%
Ben Akin-Smith 9/10 4141 days 100%
Amanda Wells 8/10 4141 days 90%
Katherine Forward 9/10 4141 days 100%
Brendan Dunn 9/10 4147 days 100%
John Hensman 10/10 4151 days 100%
Sandra Schneifer 10/10 4166 days 100%
MarcyMark 10/10 4481 days 100%
philaus 7/10 4481 days 83%
Elizabeth E 7/10 4556 days 83%
Ray Burkhill 10/10 4571 days 100%
Han Disveld 9/10 4858 days 100%
ramgoldhecht 10/10 4861 days 100%
Gillian 9/10 4866 days 100%
DavidHilton 9/10 4866 days 100%
John 9/10 4887 days 100%
Bronte Koop 9/10 4902 days 100%
Josefine 10/10 4902 days 100%
Temo 9/10 5094 days 100%
Iris 10/10 5247 days 100%
Kelly 10/10 5250 days 100%
Vicky Elliott 8/10 5257 days 90%
Anna 7/10 5258 days 83%
Josh 10/10 5260 days 100%
Christie H 8/10 5330 days 90%
MrsWesley 10/10 5572 days 100%
jessrob 2/10 5728 days 52%


Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.

Sample Size Adjustment

No Adjustment

A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Sea Kayak Fiordland experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-2.01% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 124 days. However the Sea Kayak Fiordland experience does not meet the criteria for any adjustment.

In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.

The Sea Kayak Fiordland experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -1.98%
198 -1.99%
199 -2.00%
200 -2.01%
201 -2.02%
202 -2.03%
203 -2.04%

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.