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 Lyell Campsite.

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

Lyell Campsite

Valid Reviews

38 Valid Reviews

The Lyell Campsite experience has a total of 39 reviews. There are 38 valid reviews that are included when calculating the ranking score and 1 invalid review 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 38 valid reviews:

Rating Count Percentage
10/10 2
9/10 5
8/10 6
7/10 17
6/10 4
5/10 3
4/10 0
3/10 1
2/10 0
1/10 0

72.11% Average

The raw data average (mean) for all the Lyell Campsite valid reviews is 72.11% and is based on 38 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

16 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 38 valid reviews, the experience has 16 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 16 face-to-face reviews:

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

74.38% Average

The raw data average (mean) for all the Lyell Campsite face-to-face reviews is 74.38% and is based on 16 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
Cass 8/10 748 days 100%
JT 9/10 960 days 34%
Rod Cochrane 10/10 1266 days 19%
Vander Plancke Julien 3/10 1409 days 14%
Stacey Cheong 6/10 1423 days 15%
Allain Riepema 7/10 1430 days 16%
Irina Dubrovskaya 7/10 1572 days 15%
Lisa Erikssen 5/10 1697 days 12%
Lizzie V 7/10 1721 days 14%
Lyn Pobke 7/10 1945 days 12%
Jeremy Billy 7/10 2001 days 12%
Toby Regan 8/10 2080 days 12%
Amy Bayliss 7/10 2081 days 11%
Rob & Colleen Elwood 7/10 2087 days 11%
Martin Hofmann 7/10 2298 days 9%
Christina L 8/10 2377 days 9%
Marine P 6/10 2388 days 8%
Andrew Cruickshank 7/10 2393 days 9%
Mike Fricker 7/10 2727 days 6%
Adriana 9/10 2735 days 7%
Oliver Blackmore 8/10 2757 days 6%
Siobhan Mee 10/10 2757 days 6%
Colin Evins 7/10 2776 days 6%
Xavier 5/10 2779 days 5%
arnaud paquet 7/10 2817 days 5%
Helene & Peter 6/10 2878 days 4%
Tony Graham 7/10 3062 days 3%
ramy 9/10 3092 days 3%
patrick+ katerina 7/10 3092 days 3%
Lorna and Seb 8/10 3126 days 3%
Jill Homewood 8/10 3481 days 0%
Rocipon 7/10 3837 days 3%
Philippa Waters 7/10 3872 days 3%
Jane Hancock 9/10 3877 days 3%
Calvin Parsons 9/10 3882 days 3%
Colby Smythe 6/10 4222 days 2%
JanetM 7/10 4565 days 3%
Anton 5/10 4600 days 2%


No Adjustment

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

Final Ranking Score


The final ranking score once 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.