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 Lake Opuha.

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

Lake Opuha

Valid Reviews

30 Valid Reviews

The Lake Opuha experience has a total of 31 reviews. There are 30 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.

Within these 30 valid reviews, the experience has 2 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 30 valid reviews:

Rating Count Percentage
10/10 14
9/10 5
8/10 6
7/10 2
6/10 3
5/10 0
4/10 0
3/10 0
2/10 0
1/10 0

88.33% Average

The raw data average (mean) for all the Lake Opuha valid reviews is 88.33% and is based on 30 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.

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 Face-to-Face Weight Relative Weight
Freya 10/10 50 days 99.6 100%
From DK 9/10 81 days 98.96 99%
Elian Lefebvre 10/10 81 days 98.96 99%
Philip Page 9/10 173 days 95.26 96%
Mischa 10/10 173 days 95.26 96%
Sophie Skinner 8/10 173 days 95.26 96%
Jonas R. 10/10 173 days 95.26 96%
Holly Bartholomew 10/10 203 days 93.47 94%
Kiri Edwards 7/10 265 days 88.87 89%
Charlesbrooksphotographer 9/10 326 days 83.16 83%
Robin 10/10 356 days 79.92 80%
Anna 10/10 387 days 76.27 76%
DARYL EVANS 10/10 387 days 76.27 76%
Tristan & Jolie 9/10 387 days 76.27 76%
Nadene Wheatley 10/10 503 days 59.91 59%
Bernd das Brot 8/10 507 days 59.27 58%
Carrie Brightwell 10/10 677 days 32.69 31%
Bruce Graham 9/10 695 days 30.35 28%
Puneet Mishra 10/10 897 days 11.21 9%
Sarah Elphinstone 10/10 897 days 11.21 9%
Kevin 8/10 926 days 9.53 7%
Glenn Watkins 8/10 1106 days 4.98 2%
Michael Bowles 10/10 1423 days 4.55 2%
Wyklicky 7/10 1456 days 4.51 2%
Falko Salbert 6/10 1548 days 4.38 2%
Tom Guthknecht 6/10 1811 days true 4.82 2%
Penny Lee 8/10 1821 days true 4.81 2%
Rhi 8/10 1999 days 3.76 1%
sitges10 10/10 2364 days 3.26 0%
Graeme 6/10 2638 days 2.89 0%


No Adjustment

Several adjustments to the weighted average may be added to improve relevancy and credibility. Lake Opuha 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.

Love Christchurch