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 2362 days 100%
Dave Purdie 10/10 2484 days 89%
ilene resnick 10/10 2605 days 78%
R5 Cheviot 10/10 2697 days 69%
Melanie White 10/10 3185 days 25%
Vanessa Hollow 10/10 3215 days 22%
Sarah Stenhouse 10/10 3246 days 19%
cedandsal 10/10 3366 days 8%
Lorraine 10/10 3397 days 6%
Teri C 10/10 3458 days 0%
cruisysue 10/10 3824 days 29%
boppie 10/10 3977 days 29%
Pascal 4/10 3977 days 19%
rickweldon 10/10 4067 days 29%
allesca 10/10 4097 days 29%
creed 10/10 4097 days 29%
letstraveltogether 10/10 4311 days 29%
snodge 10/10 4342 days 29%
Daren Mitchell 10/10 4370 days 29%
Tony Clements 10/10 4370 days 29%
barbara 10/10 4401 days 29%
rincoln 10/10 4462 days 29%
Evan 10/10 4493 days 15%
Cathy 10/10 4523 days 29%
marytreis 10/10 4554 days 29%
FJo 10/10 4615 days 29%
Cat 10/10 4676 days 29%
Norma Raspin 10/10 4676 days 29%
geoffelizabeth 8/10 4676 days 13%
albert Casellas 10/10 4676 days 29%
Skye Lyselle 10/10 4692 days 29%
RowanL 10/10 4696 days 15%
Steve Piluke 10/10 4726 days 29%
Sherry 10/10 4729 days 29%
Klalis 10/10 4732 days 15%
Kevin Dangerfield 10/10 4765 days 29%
Tony Butcher 10/10 4776 days 29%
jes_smiley 10/10 4871 days 29%
Eric Scott 10/10 5022 days 29%
allyson payne 10/10 5041 days 29%
Patricia Ni Chonchuir 10/10 5063 days 29%
The_Lightbodys 10/10 5100 days 29%
Kim, Chris, Daphne, Zachary, Abigail Morey 10/10 5101 days 29%
Vicki Cook 9/10 5103 days 15%
Carola Haaparinne 10/10 5104 days 15%
sandy 10/10 5115 days 29%
Elke 10/10 5431 days 15%


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

-4.10% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 46 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 -4.04%
198 -4.06%
199 -4.08%
200 -4.10%
201 -4.12%
202 -4.14%
203 -4.16%

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.