Ranking Score Explained

Kia ora 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 Waipu Caves Track.

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.

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Cymen Crick

Rankers Owner

Waipu Caves Track

Valid Reviews

28 Valid Reviews

The Waipu Caves Track experience has a total of 28 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 28 valid reviews:

Rating Count Percentage
10/10 12
9/10 7
8/10 1
7/10 5
6/10 1
5/10 1
4/10 0
3/10 1
2/10 0
1/10 0

85.71% Average

The raw data average (mean) for all the Waipu Caves Track valid reviews is 85.71% and is based on 28 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

20 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 28 valid reviews, the experience has 20 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 20 face-to-face reviews:

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

85.50% Average

The raw data average (mean) for all the Waipu Caves Track face-to-face reviews is 85.50% and is based on 20 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
Breanna Alexander 3/10 2043 days 80%
Carina Weber 7/10 2069 days 94%
MARK CURPHEY 10/10 2125 days 100%
Michelle Smit 7/10 2207 days 85%
Jane Simmons 10/10 2268 days 90%
Nina Rittmann 9/10 2316 days 87%
Gerbrand Smidt 7/10 2343 days 77%
Igor Pretzer 7/10 2343 days 77%
Patrick Thumeyer 9/10 2360 days 84%
Leon Grummer 10/10 2365 days 83%
Boukje Diijkstra 10/10 2368 days 83%
Kay Radloft 10/10 2380 days 82%
Christoph Herrmann 6/10 2385 days 67%
Pierre Alexandre 8/10 2386 days 78%
Paula Bauer 10/10 2388 days 82%
Steph 9/10 2388 days 82%
Johanna Kuch 10/10 2389 days 82%
Ruven Rintelmann 10/10 2390 days 82%
Catharina Cuntz 9/10 2395 days 81%
Julia Martin 10/10 2436 days 79%
Sebastian 10/10 2481 days 75%
Sophie Huybrechts 9/10 2807 days 53%
Boneschova Jarka 10/10 3060 days 36%
Florent Bouillon 9/10 3088 days 34%
Felicitas 7/10 3092 days 30%
Thomas Dequidt 9/10 3118 days 32%
Jaqi_Gary 10/10 3576 days 0%
Christina Fischer 5/10 4210 days 23%


No Adjustment

Several adjustments to the weighted average may be added to improve relevancy and credibility. Waipu Caves Track does not meet the criteria for any of these adjustments to apply.

Final Ranking Score


The final ranking score once any adjustments, ratings, 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.