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 Maori Tours Kaikoura.

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

Maori Tours Kaikoura

Valid Reviews

47 Valid Reviews

The Maori Tours Kaikoura experience has a total of 47 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 47 valid reviews:

Rating Count Percentage
10/10 44
9/10 1
8/10 1
7/10 0
6/10 0
5/10 0
4/10 1
3/10 0
2/10 0
1/10 0

98.09% Average

The raw data average (mean) for all the Maori Tours Kaikoura valid reviews is 98.09% and is based on 47 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

7 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 47 valid reviews, the experience has 7 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 7 face-to-face reviews:

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

95.71% Average

The raw data average (mean) for all the Maori Tours Kaikoura face-to-face reviews is 95.71% and is based on 7 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
Anthony Jacobs 10/10 2152 days 100%
Dave Purdie 10/10 2274 days 92%
ilene resnick 10/10 2395 days 83%
R5 Cheviot 10/10 2486 days 77%
Melanie White 10/10 2974 days 44%
Vanessa Hollow 10/10 3005 days 42%
Sarah Stenhouse 10/10 3036 days 39%
cedandsal 10/10 3156 days 31%
Lorraine 10/10 3187 days 29%
Teri C 10/10 3247 days 25%
cruisysue 10/10 3613 days 0%
boppie 10/10 3767 days 32%
Pascal 4/10 3767 days 25%
rickweldon 10/10 3857 days 32%
allesca 10/10 3887 days 32%
creed 10/10 3887 days 32%
letstraveltogether 10/10 4101 days 32%
snodge 10/10 4132 days 32%
Daren Mitchell 10/10 4160 days 32%
Tony Clements 10/10 4160 days 32%
barbara 10/10 4191 days 32%
rincoln 10/10 4252 days 32%
Evan 10/10 4283 days 22%
Cathy 10/10 4312 days 32%
marytreis 10/10 4343 days 32%
FJo 10/10 4404 days 32%
Cat 10/10 4466 days 32%
Norma Raspin 10/10 4466 days 32%
geoffelizabeth 8/10 4466 days 20%
albert Casellas 10/10 4466 days 32%
Skye Lyselle 10/10 4482 days 32%
RowanL 10/10 4486 days 22%
Steve Piluke 10/10 4516 days 32%
Sherry 10/10 4519 days 32%
Klalis 10/10 4522 days 22%
Kevin Dangerfield 10/10 4555 days 32%
Tony Butcher 10/10 4566 days 32%
jes_smiley 10/10 4661 days 32%
Eric Scott 10/10 4812 days 32%
allyson payne 10/10 4831 days 32%
Patricia Ni Chonchuir 10/10 4853 days 32%
The_Lightbodys 10/10 4890 days 32%
Kim, Chris, Daphne, Zachary, Abigail Morey 10/10 4890 days 32%
Vicki Cook 9/10 4893 days 22%
Carola Haaparinne 10/10 4894 days 22%
sandy 10/10 4905 days 32%
Elke 10/10 5221 days 22%


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 Maori Tours Kaikoura experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-2.13% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 119 days. However the Maori Tours Kaikoura 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 Maori Tours Kaikoura experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -2.10%
198 -2.11%
199 -2.12%
200 -2.13%
201 -2.14%
202 -2.15%
203 -2.16%

Final Ranking Score


The final ranking score once adjustments 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.