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 Rap, Raft 'N' Rock.

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

Rap, Raft 'N' Rock

Valid Reviews

43 Valid Reviews

The Rap, Raft 'N' Rock experience has a total of 43 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 43 valid reviews:

Rating Count Percentage
10/10 13
9/10 10
8/10 13
7/10 3
6/10 2
5/10 1
4/10 0
3/10 0
2/10 1
1/10 0

84.65% Average

The raw data average (mean) for all the Rap, Raft 'N' Rock valid reviews is 84.65% and is based on 43 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

35 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 43 valid reviews, the experience has 35 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 35 face-to-face reviews:

Rating Count Percentage
10/10 9
9/10 10
8/10 11
7/10 3
6/10 1
5/10 1
4/10 0
3/10 0
2/10 0
1/10 0

85.71% Average

The raw data average (mean) for all the Rap, Raft 'N' Rock face-to-face reviews is 85.71% and is based on 35 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
chippies5169 8/10 2150 days 77%
Ali Hendry 10/10 2162 days 100%
Isabel Winkow 7/10 2174 days 99%
Ed Trucie 9/10 2176 days 99%
Yves & Sylvia 10/10 2195 days 98%
Ashley Mckenney 10/10 2255 days 95%
Louisa 8/10 2255 days 95%
Philip Gierke 8/10 2521 days 80%
Roald and Ellen 7/10 2536 days 79%
J van de Vlekkert 8/10 2550 days 79%
Tamlin Barton 9/10 2562 days 78%
AlisonB 10/10 2881 days 43%
Peter Schmidt 6/10 2912 days 42%
Mathias Skov 10/10 2926 days 58%
Hannah Clark 10/10 2933 days 58%
hermine Petz 9/10 2934 days 58%
Furger 10/10 3004 days 54%
Chris Leach 9/10 3009 days 53%
Brit_Chick 2/10 3032 days 27%
hilary hale 8/10 3063 days 35%
Diana Spaulding 10/10 3063 days 35%
jaie rayner 10/10 3063 days 35%
emmah 7/10 3129 days 47%
BeckieM 8/10 3236 days 41%
Robert Wolf 9/10 3242 days 41%
Steve 8/10 3252 days 40%
JasonL 6/10 3258 days 40%
Amelie 10/10 3267 days 39%
EmmaL 9/10 3279 days 39%
Jows 8/10 3282 days 38%
Richard 10/10 3286 days 38%
Betty Kenny 10/10 3289 days 25%
Kat 10/10 3305 days 37%
Kerim 9/10 3312 days 37%
Hannah 9/10 3312 days 37%
Carolyn 8/10 3314 days 37%
Bucher 5/10 3326 days 36%
Zachari 8/10 3350 days 35%
Thorsten Kabelitz 9/10 3636 days 19%
Naomi Horton 9/10 3639 days 19%
Trish 8/10 3975 days 0%
Magnus 8/10 3976 days 0%
Jonas 8/10 3981 days 0%


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 Rap, Raft 'N' Rock experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-7.28% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Rap, Raft 'N' Rock 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 364 days.

The Rap, Raft 'N' Rock experience has been adjusted for 364 days. Adjustments are according to the following table.

Days Adjustment
361 -7.22%
362 -7.24%
363 -7.26%
364 -7.28%
365 -7.30%
366 -7.32%
367 -7.34%

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.