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 2003 days 100%
Dave Purdie 10/10 2125 days 92%
ilene resnick 10/10 2246 days 85%
R5 Cheviot 10/10 2337 days 79%
Melanie White 10/10 2825 days 49%
Vanessa Hollow 10/10 2855 days 47%
Sarah Stenhouse 10/10 2886 days 46%
cedandsal 10/10 3006 days 38%
Lorraine 10/10 3037 days 36%
Teri C 10/10 3098 days 32%
cruisysue 10/10 3464 days 10%
boppie 10/10 3617 days 0%
Pascal 4/10 3617 days 0%
rickweldon 10/10 3707 days 30%
allesca 10/10 3737 days 30%
creed 10/10 3737 days 30%
letstraveltogether 10/10 3951 days 30%
snodge 10/10 3982 days 30%
Daren Mitchell 10/10 4010 days 30%
Tony Clements 10/10 4010 days 30%
barbara 10/10 4041 days 30%
rincoln 10/10 4102 days 30%
Evan 10/10 4133 days 20%
Cathy 10/10 4163 days 30%
marytreis 10/10 4194 days 30%
FJo 10/10 4255 days 30%
Cat 10/10 4316 days 30%
Norma Raspin 10/10 4316 days 30%
geoffelizabeth 8/10 4316 days 19%
albert Casellas 10/10 4316 days 30%
Skye Lyselle 10/10 4333 days 30%
RowanL 10/10 4336 days 20%
Steve Piluke 10/10 4366 days 30%
Sherry 10/10 4370 days 30%
Klalis 10/10 4372 days 20%
Kevin Dangerfield 10/10 4405 days 30%
Tony Butcher 10/10 4416 days 30%
jes_smiley 10/10 4511 days 30%
Eric Scott 10/10 4662 days 30%
allyson payne 10/10 4682 days 30%
Patricia Ni Chonchuir 10/10 4703 days 30%
The_Lightbodys 10/10 4740 days 30%
Kim, Chris, Daphne, Zachary, Abigail Morey 10/10 4741 days 30%
Vicki Cook 9/10 4743 days 20%
Carola Haaparinne 10/10 4744 days 20%
sandy 10/10 4756 days 30%
Elke 10/10 5071 days 20%


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

-4.12% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 48 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 -4.06%
198 -4.08%
199 -4.10%
200 -4.12%
201 -4.14%
202 -4.16%
203 -4.18%

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.