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 3326 days 33%
Ali Hendry 10/10 3338 days 34%
Isabel Winkow 7/10 3350 days 21%
Ed Trucie 9/10 3352 days 30%
Yves & Sylvia 10/10 3371 days 23%
Ashley Mckenney 10/10 3431 days 4%
Louisa 8/10 3431 days 0%
Philip Gierke 8/10 3697 days 92%
Roald and Ellen 7/10 3712 days 85%
J van de Vlekkert 8/10 3726 days 92%
Tamlin Barton 9/10 3738 days 100%
AlisonB 10/10 4057 days 100%
Peter Schmidt 6/10 4088 days 71%
Mathias Skov 10/10 4102 days 100%
Hannah Clark 10/10 4109 days 100%
hermine Petz 9/10 4110 days 100%
Furger 10/10 4180 days 100%
Chris Leach 9/10 4185 days 100%
Brit_Chick 2/10 4208 days 58%
hilary hale 8/10 4239 days 92%
Diana Spaulding 10/10 4239 days 100%
jaie rayner 10/10 4239 days 100%
emmah 7/10 4304 days 85%
BeckieM 8/10 4411 days 92%
Robert Wolf 9/10 4418 days 100%
Steve 8/10 4428 days 92%
JasonL 6/10 4434 days 71%
Amelie 10/10 4443 days 100%
EmmaL 9/10 4455 days 100%
Jows 8/10 4458 days 92%
Richard 10/10 4462 days 100%
Betty Kenny 10/10 4465 days 100%
Kat 10/10 4481 days 100%
Kerim 9/10 4488 days 100%
Hannah 9/10 4488 days 100%
Carolyn 8/10 4490 days 92%
Bucher 5/10 4502 days 68%
Zachari 8/10 4526 days 92%
Thorsten Kabelitz 9/10 4812 days 100%
Naomi Horton 9/10 4815 days 100%
Trish 8/10 5150 days 92%
Magnus 8/10 5151 days 92%
Jonas 8/10 5156 days 92%


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

-2.93% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 85 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.

The Rap, Raft 'N' Rock experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -2.89%
198 -2.90%
199 -2.92%
200 -2.93%
201 -2.95%
202 -2.96%
203 -2.98%

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.