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 2244 days 100%
Dave Purdie 10/10 2366 days 89%
ilene resnick 10/10 2487 days 78%
R5 Cheviot 10/10 2578 days 69%
Melanie White 10/10 3066 days 25%
Vanessa Hollow 10/10 3096 days 22%
Sarah Stenhouse 10/10 3127 days 19%
cedandsal 10/10 3247 days 8%
Lorraine 10/10 3278 days 6%
Teri C 10/10 3339 days 0%
cruisysue 10/10 3705 days 18%
boppie 10/10 3858 days 18%
Pascal 4/10 3858 days 8%
rickweldon 10/10 3948 days 18%
allesca 10/10 3978 days 18%
creed 10/10 3978 days 18%
letstraveltogether 10/10 4192 days 18%
snodge 10/10 4223 days 18%
Daren Mitchell 10/10 4251 days 18%
Tony Clements 10/10 4251 days 18%
barbara 10/10 4282 days 18%
rincoln 10/10 4343 days 18%
Evan 10/10 4374 days 4%
Cathy 10/10 4404 days 18%
marytreis 10/10 4435 days 18%
FJo 10/10 4496 days 18%
Cat 10/10 4557 days 18%
Norma Raspin 10/10 4557 days 18%
geoffelizabeth 8/10 4557 days 2%
albert Casellas 10/10 4558 days 18%
Skye Lyselle 10/10 4574 days 18%
RowanL 10/10 4577 days 4%
Steve Piluke 10/10 4607 days 18%
Sherry 10/10 4611 days 18%
Klalis 10/10 4614 days 4%
Kevin Dangerfield 10/10 4647 days 18%
Tony Butcher 10/10 4658 days 18%
jes_smiley 10/10 4753 days 18%
Eric Scott 10/10 4903 days 18%
allyson payne 10/10 4923 days 18%
Patricia Ni Chonchuir 10/10 4945 days 18%
The_Lightbodys 10/10 4981 days 18%
Kim, Chris, Daphne, Zachary, Abigail Morey 10/10 4982 days 18%
Vicki Cook 9/10 4984 days 4%
Carola Haaparinne 10/10 4985 days 4%
sandy 10/10 4997 days 18%
Elke 10/10 5312 days 4%


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

-3.07% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 73 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 -3.03%
198 -3.04%
199 -3.06%
200 -3.07%
201 -3.09%
202 -3.10%
203 -3.12%

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.