Hey, 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 The Legendary Black Water Rafting Co..

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

The Legendary Black Water Rafting Co.

Valid Reviews

292 Valid Reviews

The The Legendary Black Water Rafting Co. experience has a total of 294 reviews. There are 292 valid reviews that are included when calculating the ranking score and 2 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 292 valid reviews:

Rating Count Percentage
10/10 75
26%
9/10 98
34%
8/10 68
23%
7/10 30
10%
6/10 13
4%
5/10 4
1%
4/10 1
0%
3/10 2
1%
2/10 1
0%
1/10 0
0%

85.48% Average

The raw data average (mean) for all the The Legendary Black Water Rafting Co. valid reviews is 85.48% and is based on 292 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

261 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 292 valid reviews, the experience has 261 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 261 face-to-face reviews:

Rating Count Percentage
10/10 64
25%
9/10 83
32%
8/10 66
25%
7/10 29
11%
6/10 13
5%
5/10 2
1%
4/10 1
0%
3/10 2
1%
2/10 1
0%
1/10 0
0%

84.98% Average

The raw data average (mean) for all the The Legendary Black Water Rafting Co. face-to-face reviews is 84.98% and is based on 261 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

86.28%

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
Allain Riepema 8/10 2724 days 100%
Dominik and Alex 9/10 2966 days 85%
Mark Haydon 9/10 2983 days 84%
Alex Victor 10/10 2987 days 84%
Max Mueller 9/10 3030 days 81%
Wouter Bleckmann 7/10 3034 days 75%
May 10/10 3058 days 80%
Nolan Townsend 9/10 3069 days 78%
Robert Wolf 9/10 3082 days 77%
Anne Bezanson 7/10 3087 days 72%
Julian Gury 8/10 3089 days 76%
shelley smith 10/10 3198 days 70%
Heidi Hipp 8/10 3296 days 62%
Christian Krause 10/10 3308 days 63%
Stephanie Still 9/10 3311 days 62%
Dahlia Ahmed 9/10 3312 days 62%
Sebastiaan 8/10 3312 days 61%
Olivier Anciaux 6/10 3314 days 52%
Laura Moore 10/10 3320 days 62%
Lauren Dinnage 10/10 3321 days 62%
Joe Rogers 8/10 3325 days 60%
Signe Broedbaek 6/10 3331 days 51%
Lukas Seager 10/10 3331 days 61%
Michaela Bartotini 9/10 3336 days 60%
Verena 10/10 3339 days 61%
Kirsten Gehrenbeck 8/10 3350 days 59%
Anna Bouteloup 10/10 3353 days 60%
Tamara 8/10 3353 days 58%
Cosmo Hartuna 9/10 3358 days 59%
Nora Hoethoefer 10/10 3358 days 59%
Ricardo Kalbhen 8/10 3358 days 58%
Franziska Hohmann 6/10 3364 days 50%
Alice Melker 8/10 3365 days 58%
Vanesha Patel 10/10 3373 days 58%
Janine 8/10 3376 days 57%
Marc 7/10 3395 days 52%
James Newton 10/10 3408 days 56%
Elizabeth Nash 6/10 3413 days 47%
Emma Keegan 10/10 3655 days 39%
Robert Wieclawski 5/10 3686 days 26%
Emma 8/10 3686 days 36%
Jade Cownley 8/10 3700 days 35%
Ives van der Sluijs 6/10 3734 days 28%
Richard 10/10 3930 days 21%
Caroline Jonsson 8/10 4020 days 14%
Jonny Ronnblom 8/10 4020 days 14%
James Russell 8/10 4028 days 14%
Hannah Watt 8/10 4028 days 14%
Alex 8/10 4030 days 14%
Becky 9/10 4030 days 14%
Patricia Erni 8/10 4030 days 14%
Robert Erni 9/10 4030 days 14%
Christina 8/10 4034 days 13%
Kathrin Lerch 9/10 4034 days 14%
Paolo Cases 3/10 4034 days 3%
Laura 10/10 4046 days 13%
Joanna Mulcahy 10/10 4049 days 13%
Tobias Thull 7/10 4055 days 11%
Dana 2/10 4070 days 0%
Jan Pekarek 7/10 4098 days 8%
Lenka Dvorauova 8/10 4098 days 9%
Camille Gagnant 10/10 4101 days 9%
Anne Collet 10/10 4104 days 9%
Marine 8/10 4108 days 8%
Ken S 10/10 4142 days 7%
Jeremy 9/10 4142 days 6%
Christian Marzy 9/10 4386 days 25%
Yves Vennewald 6/10 4404 days 20%
Silvia-Marie Bront 10/10 4416 days 25%
Tina 8/10 4423 days 24%
Jean Raisin 7/10 4423 days 23%
TJ and Julie Edwards 10/10 4430 days 25%
Fabian and Teresa 9/10 4438 days 25%
Kyle Guffei 10/10 4440 days 25%
Reinier Timmer 8/10 4489 days 24%
Alastair MacDonald 8/10 4494 days 24%
Moorman 8/10 4498 days 24%
Cennart ud Brock 8/10 4506 days 24%
Barbara 10/10 4507 days 25%
Pietersen 8/10 4518 days 24%
Ben Simons 9/10 4778 days 25%
Duncan Mallison 9/10 4788 days 25%
Mats Harstedt 7/10 4791 days 23%
Deana Peters 8/10 4794 days 24%
Sebastian Rossbach 9/10 4794 days 25%
Preben vil Helmsen 7/10 4794 days 23%
Andrea Bircher 9/10 4796 days 25%
Simon Fry 8/10 4796 days 24%
Eline Vakentijn 8/10 4796 days 24%
Nikki Bentley 7/10 4797 days 23%
Franziska & Katrin 6/10 4803 days 20%
Graham Swinyard 9/10 4805 days 25%
Ursi Meier 9/10 4805 days 25%
Roger ter Horst 7/10 4806 days 23%
R Laurysen 7/10 4808 days 23%
Adam Critchley 9/10 4808 days 25%
Lindblom 9/10 4808 days 25%
Claudia & Julian 9/10 4809 days 25%
Julia Balionis 10/10 4856 days 25%
Stefan Nitsch 8/10 4877 days 24%
Malaea_Tangi01 10/10 4903 days 25%
visser01 9/10 4934 days 25%
pauliebates 9/10 4964 days 25%
rgoodwi3 10/10 5056 days 25%
Jordy 9/10 5087 days 25%
Houstons 5/10 5087 days 17%
Stefanny Ling 9/10 5113 days 25%
English_Campers 10/10 5117 days 25%
Lindsey Clough 10/10 5126 days 25%
Franzi & Tobi 9/10 5128 days 25%
Johanna & Mark 7/10 5130 days 23%
Stefanie 7/10 5131 days 23%
Natalie Maguire 10/10 5131 days 25%
Julia 10/10 5131 days 25%
Jo Meekley 10/10 5132 days 25%
Astrid N 9/10 5135 days 25%
Marty Fey 9/10 5139 days 25%
Amanda Neall 10/10 5140 days 25%
Ellie Thompson 10/10 5140 days 25%
Barry Barnes 9/10 5142 days 25%
Katherine Forward 9/10 5142 days 25%
Shirley 6/10 5146 days 20%
S and A Koehue 9/10 5148 days 25%
Matthew Franklin 10/10 5150 days 25%
Annelie & Martin 9/10 5152 days 25%
Justin Pearce 9/10 5152 days 25%
Claire Hoyland 9/10 5163 days 25%
Tayler Gray 9/10 5163 days 25%
Dave and Emma 9/10 5164 days 25%
E M Klap 9/10 5167 days 25%
Matthijs Muijsers 9/10 5169 days 25%
C Gobl 9/10 5175 days 25%
Michelle Booty 9/10 5175 days 25%
Jenny 9/10 5177 days 25%
Shoe 7/10 5238 days 23%
Lance 9/10 5268 days 25%
Julie 10/10 5299 days 25%
soph_p 9/10 5299 days 25%
katiec82 10/10 5329 days 25%
Theta 9/10 5482 days 25%
astridaus 7/10 5482 days 23%
Don Keith 9/10 5500 days 25%
Don & Alice 9/10 5517 days 25%
Krause 5/10 5522 days 17%
Jannievan Osnabrugge 9/10 5523 days 25%
Tim Stick 8/10 5527 days 24%
Martÿn Steenvoorden 7/10 5533 days 23%
Caitriona Doyle 9/10 5535 days 25%
Toni 8/10 5535 days 24%
Nick 8/10 5540 days 24%
Pam K 10/10 5540 days 25%
Coby Aalbrecht 9/10 5540 days 25%
Peter Tres 10/10 5556 days 25%
Mitchell Mapletree 10/10 5557 days 25%
sanneb1 8/10 5588 days 24%
andres 9/10 5595 days 25%
catdonjaime 10/10 5596 days 25%
Christian Jean Louis 9/10 5605 days 25%
anniest 9/10 5607 days 25%
vernenal 9/10 5607 days 25%
Steven Walsh 4/10 5611 days 13%
Christy 9/10 5613 days 25%
Ulyate 7/10 5614 days 23%
Andrea and Craig Swinson 9/10 5627 days 25%
Bettina illmann 9/10 5629 days 25%
Emily and Alex 10/10 5630 days 25%
Anna 9/10 5633 days 25%
PatH 10/10 5647 days 25%
Evan 9/10 5664 days 25%
clairet 8/10 5712 days 24%
zoed 8/10 5802 days 24%
glennandjen 9/10 5817 days 25%
Sofie 9/10 5817 days 25%
Michael Maddams 8/10 5845 days 24%
LaurensD 6/10 5847 days 20%
gerhardm 8/10 5847 days 24%
Ide 8/10 5848 days 24%
Olga 7/10 5848 days 23%
Sam 8/10 5848 days 24%
Christopher 9/10 5851 days 25%
Kim 9/10 5851 days 25%
Marc 9/10 5851 days 25%
SBlake 10/10 5852 days 25%
Steve Harper 8/10 5854 days 24%
WinstonH 8/10 5866 days 24%
Silhan 9/10 5867 days 25%
Elizabeth 10/10 5870 days 25%
CarolineZ 9/10 5874 days 25%
FloorN 9/10 5874 days 25%
OllyD 9/10 5876 days 25%
Sally477 9/10 5878 days 25%
Tom 9/10 5880 days 25%
Tom 9/10 5880 days 25%
Rafael 9/10 5883 days 25%
soccaplaya14 9/10 5886 days 25%
AbigailB 10/10 5892 days 25%
Simon 10/10 5896 days 25%
Melanie 8/10 5897 days 24%
Rob 7/10 5897 days 23%
Simon 10/10 5897 days 25%
orianne 8/10 5903 days 24%
Florian 9/10 5904 days 25%
rustytrombone 9/10 5906 days 25%
Martha 7/10 5910 days 23%
Thamar 9/10 5911 days 25%
Karen 10/10 5911 days 25%
Burkhardt 7/10 5913 days 23%
Denis 10/10 5916 days 25%
Kim 10/10 5918 days 25%
Erik 8/10 5919 days 24%
Lucas 10/10 5919 days 25%
Jorn 8/10 5921 days 24%
Hazel 6/10 5921 days 20%
Andrew 9/10 5923 days 25%
Jess 8/10 5972 days 24%
Tim 7/10 5977 days 23%
Jacinta 8/10 5977 days 24%
Ben 10/10 5987 days 25%
Richard 8/10 6026 days 24%
David 10/10 6066 days 25%
Kees 7/10 6071 days 23%
Jorn 8/10 6079 days 24%
Brian 10/10 6095 days 25%
Nikki Gray 9/10 6097 days 25%
Tim 8/10 6119 days 24%
Mike Dudey 8/10 6128 days 24%
Michael White 8/10 6209 days 24%
Erin White 9/10 6210 days 25%
Heckter 7/10 6218 days 23%
Benjamin Krein 9/10 6238 days 25%
Jacinta 8/10 6238 days 24%
Tony Wicks 8/10 6244 days 24%
Bethany Webster 10/10 6246 days 25%
Hannah Holmes 7/10 6247 days 23%
Miranda 7/10 6248 days 23%
Amy 9/10 6256 days 25%
Gina 10/10 6256 days 25%
Julie 9/10 6256 days 25%
Ed 8/10 6256 days 24%
Laurie 10/10 6258 days 25%
Katharina 10/10 6259 days 25%
Juliet 10/10 6260 days 25%
Laura 10/10 6260 days 25%
Porrie 8/10 6272 days 24%
Chris 10/10 6272 days 25%
Dani 9/10 6272 days 25%
Stacey 10/10 6272 days 25%
Aske Helbor 6/10 6290 days 20%
ranker_734 5/10 6290 days 17%
Anu 8/10 6293 days 24%
marie-pier Poulin 10/10 6317 days 25%
Willemien 8/10 6339 days 24%
Rob Boston 10/10 6395 days 25%
purplekat99 10/10 6395 days 25%
Jessica Callen 8/10 6449 days 24%
Sabine 10/10 6559 days 25%
Linda 8/10 6563 days 24%
Helen 9/10 6565 days 25%
Matt 8/10 6565 days 24%
Richard 9/10 6565 days 25%
ShoshanaAbrams 7/10 6568 days 23%
Elaine 7/10 6568 days 23%
Marcus 10/10 6575 days 25%
Dave 6/10 6577 days 20%
Fran 6/10 6577 days 20%
Daniel 7/10 6577 days 23%
Janning 8/10 6583 days 24%
Melanie 9/10 6583 days 25%
NeilYeoman 8/10 6584 days 24%
Valerie 10/10 6584 days 25%
Sean 7/10 6587 days 23%
Marcus 9/10 6587 days 25%
Katie 9/10 6587 days 25%
Annette 8/10 6601 days 24%
AnnaOwen 9/10 6602 days 25%
Karen Nellist 10/10 6602 days 25%
MariaNorman 10/10 6603 days 25%
Malon 8/10 6603 days 24%
Bill 10/10 6610 days 25%
Suzy 9/10 6617 days 25%
Nynne 8/10 6619 days 24%
Johanne 9/10 6623 days 25%
Twan 10/10 6623 days 25%
FredAndersson 10/10 6623 days 25%
Cat 9/10 6625 days 25%
Akene 9/10 6625 days 25%
Paul 3/10 6625 days 9%
Stauros 10/10 6625 days 25%
Majken 9/10 6636 days 25%
Alexia 9/10 6636 days 25%
ranker_410 10/10 6636 days 25%
LisaAllen 9/10 6638 days 25%

Adjustments

Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.

Sample Size Adjustment

No Adjustment

A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The The Legendary Black Water Rafting Co. experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.68% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 61 days. However the The Legendary Black Water Rafting Co. experience does not meet the criteria for any adjustment.

In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.

The The Legendary Black Water Rafting Co. experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -3.63%
198 -3.65%
199 -3.66%
200 -3.68%
201 -3.70%
202 -3.72%
203 -3.74%

Balancing Adjustment

2.34% Adjustment

Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.

You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.

We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.

Final Ranking Score

85%

The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.