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 Wairau Diversion Reserve.

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

Wairau Diversion Reserve

Valid Reviews

47 Valid Reviews

The Wairau Diversion Reserve experience has a total of 50 reviews. There are 47 valid reviews that are included when calculating the ranking score and 3 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 47 valid reviews:

Rating Count Percentage
10/10 19
40%
9/10 13
28%
8/10 10
21%
7/10 1
2%
6/10 2
4%
5/10 1
2%
4/10 0
0%
3/10 1
2%
2/10 0
0%
1/10 0
0%

88.09% Average

The raw data average (mean) for all the Wairau Diversion Reserve valid reviews is 88.09% and is based on 47 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

87.22%

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
Salkinnoma 9/10 28 days 99.88 100%
Richard & Chris, UK 9/10 28 days 99.88 100%
A smith 10/10 59 days 99.45 100%
Mark 10/10 59 days 99.45 100%
Dennis Rijbroek 6/10 150 days 80.04 80%
Michael 3/10 273 days 67.91 67%
Rick’d 10/10 303 days 85.45 85%
Emma & Tom 9/10 303 days 85.45 85%
Georgia 8/10 334 days 78.21 78%
Hope 8/10 362 days 75.27 75%
Aisling 9/10 362 days 79.23 79%
Ceri 10/10 362 days 79.23 79%
Gareth Jones 8/10 362 days 75.27 75%
Glen Marshall UK 10/10 362 days 79.23 79%
Dan 9/10 393 days 75.53 75%
Marinette Kegels 5/10 393 days 61.18 60%
Flatlanders 9/10 393 days 75.53 75%
Martin 10/10 424 days 71.51 71%
Sian 10/10 424 days 71.51 71%
Ymke Huisman 9/10 424 days 71.51 71%
Maëlle Salmon 9/10 424 days 71.51 71%
Angela 8/10 485 days 59.59 59%
Axel 9/10 485 days 62.73 62%
N&V 8/10 485 days 59.59 59%
Mischa 10/10 485 days 62.73 62%
Lilith Prins 10/10 769 days 21.84 20%
Lucie B 6/10 1019 days 4.91 2%
Tracey Leyston 10/10 1074 days 5.07 3%
Florence Boinay 10/10 1099 days 4.99 3%
Katie Ball 10/10 1125 days 4.94 3%
Vanessa Moutic 10/10 1177 days 4.84 2%
Mathieu Quintard 10/10 1199 days 4.8 2%
Jessica Stokes 7/10 1298 days 4.19 2%
Jessica Powell 10/10 1320 days 4.56 2%
Michael Quinn 10/10 1356 days 4.49 2%
renee verwey 10/10 1452 days 4.3 2%
Zdenda Barvinek 8/10 1481 days 4.03 2%
Jean-Michel Sautter 8/10 1485 days 4.02 2%
Ana Guimaraes 8/10 1529 days 3.94 1%
leo lionheart 10/10 1643 days 3.93 1%
Yann Le Gac 9/10 1733 days 3.75 1%
Ian 9/10 1824 days 3.57 1%
David Cowling 8/10 1904 days 3.25 1%
kim 10/10 1975 days 3.28 1%
Mike Fricker 8/10 2129 days 2.83 0%
Cymen Crick 9/10 2219 days 2.8 0%
Mary Carter 9/10 2372 days 2.5 0%

Adjustments

No Adjustment

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

Final Ranking Score

87%

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.