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

50 Valid Reviews

The Wairau Diversion Reserve experience has a total of 53 reviews. There are 50 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 50 valid reviews:

Rating Count Percentage
10/10 19
38%
9/10 15
30%
8/10 11
22%
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%

88.00% Average

The raw data average (mean) for all the Wairau Diversion Reserve valid reviews is 88.00% and is based on 50 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

87.14%

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
Jack Moxon 9/10 29 days 99.87 100%
Cody 9/10 29 days 99.87 100%
Gini 8/10 29 days 94.87 95%
Salkinnoma 9/10 89 days 98.74 99%
Richard & Chris, UK 9/10 89 days 98.74 99%
A smith 10/10 120 days 97.72 98%
Mark 10/10 120 days 97.72 98%
Dennis Rijbroek 6/10 210 days 77.2 77%
Michael 3/10 333 days 63.47 63%
Rick’d 10/10 364 days 79.0 79%
Emma & Tom 9/10 364 days 79.0 79%
Georgia 8/10 395 days 71.51 71%
Hope 8/10 423 days 68.06 67%
Aisling 9/10 423 days 71.65 71%
Ceri 10/10 423 days 71.65 71%
Gareth Jones 8/10 423 days 68.06 67%
Glen Marshall UK 10/10 423 days 71.65 71%
Dan 9/10 454 days 67.34 67%
Marinette Kegels 5/10 454 days 54.54 54%
Flatlanders 9/10 454 days 67.34 67%
Martin 10/10 485 days 62.73 62%
Sian 10/10 485 days 62.73 62%
Ymke Huisman 9/10 485 days 62.73 62%
Maëlle Salmon 9/10 485 days 62.73 62%
Angela 8/10 546 days 50.12 49%
Axel 9/10 546 days 52.76 52%
N&V 8/10 546 days 50.12 49%
Mischa 10/10 546 days 52.76 52%
Lilith Prins 10/10 830 days 16.13 14%
Lucie B 6/10 1079 days 4.18 2%
Tracey Leyston 10/10 1135 days 4.92 3%
Florence Boinay 10/10 1160 days 4.87 3%
Katie Ball 10/10 1186 days 4.82 3%
Vanessa Moutic 10/10 1238 days 4.72 2%
Mathieu Quintard 10/10 1260 days 4.68 2%
Jessica Stokes 7/10 1358 days 4.08 2%
Jessica Powell 10/10 1380 days 4.44 2%
Michael Quinn 10/10 1416 days 4.37 2%
renee verwey 10/10 1513 days 4.18 2%
Zdenda Barvinek 8/10 1542 days 3.92 2%
Jean-Michel Sautter 8/10 1546 days 3.91 2%
Ana Guimaraes 8/10 1590 days 3.83 1%
leo lionheart 10/10 1703 days 3.81 1%
Yann Le Gac 9/10 1794 days 3.63 1%
Ian 9/10 1885 days 3.45 1%
David Cowling 8/10 1965 days 3.13 1%
kim 10/10 2036 days 3.16 1%
Mike Fricker 8/10 2190 days 2.71 0%
Cymen Crick 9/10 2280 days 2.68 0%
Mary Carter 9/10 2432 days 2.38 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.