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 Black Water Rafting Labyrinth Tour.

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

Black Water Rafting Labyrinth Tour

Valid Reviews

293 Valid Reviews

The Black Water Rafting Labyrinth Tour experience has a total of 295 reviews. There are 293 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 293 valid reviews:

Rating Count Percentage
10/10 76
26%
9/10 98
33%
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%

85.53% Average

The raw data average (mean) for all the Black Water Rafting Labyrinth Tour valid reviews is 85.53% and is based on 293 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 293 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 Black Water Rafting Labyrinth Tour 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

89.84%

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
Chris Day 10/10 163 days 100%
Allain Riepema 8/10 3218 days 2%
Dominik and Alex 9/10 3460 days 2%
Mark Haydon 9/10 3477 days 2%
Alex Victor 10/10 3481 days 2%
Max Mueller 9/10 3524 days 1%
Wouter Bleckmann 7/10 3528 days 1%
May 10/10 3552 days 1%
Nolan Townsend 9/10 3563 days 1%
Robert Wolf 9/10 3576 days 1%
Anne Bezanson 7/10 3581 days 1%
Julian Gury 8/10 3583 days 1%
shelley smith 10/10 3692 days 1%
Heidi Hipp 8/10 3790 days 1%
Christian Krause 10/10 3802 days 1%
Stephanie Still 9/10 3805 days 1%
Dahlia Ahmed 9/10 3806 days 1%
Sebastiaan 8/10 3806 days 1%
Olivier Anciaux 6/10 3808 days 1%
Laura Moore 10/10 3814 days 1%
Lauren Dinnage 10/10 3815 days 1%
Joe Rogers 8/10 3819 days 1%
Signe Broedbaek 6/10 3825 days 1%
Lukas Seager 10/10 3825 days 1%
Michaela Bartotini 9/10 3830 days 1%
Verena 10/10 3833 days 1%
Kirsten Gehrenbeck 8/10 3844 days 1%
Anna Bouteloup 10/10 3847 days 1%
Tamara 8/10 3847 days 1%
Cosmo Hartuna 9/10 3852 days 1%
Nora Hoethoefer 10/10 3852 days 1%
Ricardo Kalbhen 8/10 3852 days 1%
Franziska Hohmann 6/10 3858 days 1%
Alice Melker 8/10 3859 days 1%
Vanesha Patel 10/10 3867 days 1%
Janine 8/10 3870 days 1%
Marc 7/10 3889 days 1%
James Newton 10/10 3902 days 1%
Elizabeth Nash 6/10 3907 days 1%
Emma Keegan 10/10 4149 days 0%
Robert Wieclawski 5/10 4180 days 0%
Emma 8/10 4180 days 0%
Jade Cownley 8/10 4194 days 0%
Ives van der Sluijs 6/10 4228 days 0%
Richard 10/10 4423 days 1%
Caroline Jonsson 8/10 4514 days 1%
Jonny Ronnblom 8/10 4514 days 1%
James Russell 8/10 4522 days 1%
Hannah Watt 8/10 4522 days 1%
Alex 8/10 4524 days 1%
Becky 9/10 4524 days 1%
Patricia Erni 8/10 4524 days 1%
Robert Erni 9/10 4524 days 1%
Christina 8/10 4528 days 1%
Kathrin Lerch 9/10 4528 days 1%
Paolo Cases 3/10 4528 days 0%
Laura 10/10 4540 days 1%
Joanna Mulcahy 10/10 4543 days 1%
Tobias Thull 7/10 4549 days 1%
Dana 2/10 4564 days 0%
Jan Pekarek 7/10 4592 days 1%
Lenka Dvorauova 8/10 4592 days 1%
Camille Gagnant 10/10 4595 days 1%
Anne Collet 10/10 4598 days 1%
Marine 8/10 4602 days 1%
Ken S 10/10 4636 days 1%
Jeremy 9/10 4636 days 1%
Christian Marzy 9/10 4880 days 1%
Yves Vennewald 6/10 4898 days 1%
Silvia-Marie Bront 10/10 4910 days 1%
Tina 8/10 4917 days 1%
Jean Raisin 7/10 4917 days 1%
TJ and Julie Edwards 10/10 4924 days 1%
Fabian and Teresa 9/10 4932 days 1%
Kyle Guffei 10/10 4934 days 1%
Reinier Timmer 8/10 4983 days 1%
Alastair MacDonald 8/10 4988 days 1%
Moorman 8/10 4992 days 1%
Cennart ud Brock 8/10 5000 days 1%
Barbara 10/10 5001 days 1%
Pietersen 8/10 5012 days 1%
Ben Simons 9/10 5272 days 1%
Duncan Mallison 9/10 5282 days 1%
Mats Harstedt 7/10 5285 days 1%
Deana Peters 8/10 5288 days 1%
Sebastian Rossbach 9/10 5288 days 1%
Preben vil Helmsen 7/10 5288 days 1%
Andrea Bircher 9/10 5290 days 1%
Simon Fry 8/10 5290 days 1%
Eline Vakentijn 8/10 5290 days 1%
Nikki Bentley 7/10 5291 days 1%
Franziska & Katrin 6/10 5297 days 1%
Graham Swinyard 9/10 5299 days 1%
Ursi Meier 9/10 5299 days 1%
Roger ter Horst 7/10 5300 days 1%
R Laurysen 7/10 5302 days 1%
Adam Critchley 9/10 5302 days 1%
Lindblom 9/10 5302 days 1%
Claudia & Julian 9/10 5303 days 1%
Julia Balionis 10/10 5350 days 1%
Stefan Nitsch 8/10 5371 days 1%
Malaea_Tangi01 10/10 5397 days 1%
visser01 9/10 5428 days 1%
pauliebates 9/10 5457 days 1%
rgoodwi3 10/10 5549 days 1%
Jordy 9/10 5580 days 1%
Houstons 5/10 5580 days 1%
Stefanny Ling 9/10 5606 days 1%
English_Campers 10/10 5611 days 1%
Lindsey Clough 10/10 5620 days 1%
Franzi & Tobi 9/10 5622 days 1%
Johanna & Mark 7/10 5624 days 1%
Stefanie 7/10 5625 days 1%
Natalie Maguire 10/10 5625 days 1%
Julia 10/10 5625 days 1%
Jo Meekley 10/10 5626 days 1%
Astrid N 9/10 5629 days 1%
Marty Fey 9/10 5633 days 1%
Amanda Neall 10/10 5634 days 1%
Ellie Thompson 10/10 5634 days 1%
Barry Barnes 9/10 5636 days 1%
Katherine Forward 9/10 5636 days 1%
Shirley 6/10 5640 days 1%
S and A Koehue 9/10 5642 days 1%
Matthew Franklin 10/10 5644 days 1%
Annelie & Martin 9/10 5646 days 1%
Justin Pearce 9/10 5646 days 1%
Claire Hoyland 9/10 5657 days 1%
Tayler Gray 9/10 5657 days 1%
Dave and Emma 9/10 5658 days 1%
E M Klap 9/10 5661 days 1%
Matthijs Muijsers 9/10 5663 days 1%
C Gobl 9/10 5669 days 1%
Michelle Booty 9/10 5669 days 1%
Jenny 9/10 5671 days 1%
Shoe 7/10 5732 days 1%
Lance 9/10 5762 days 1%
Julie 10/10 5793 days 1%
soph_p 9/10 5793 days 1%
katiec82 10/10 5822 days 1%
Theta 9/10 5976 days 1%
astridaus 7/10 5976 days 1%
Don Keith 9/10 5994 days 1%
Don & Alice 9/10 6011 days 1%
Krause 5/10 6016 days 1%
Jannievan Osnabrugge 9/10 6017 days 1%
Tim Stick 8/10 6021 days 1%
Martÿn Steenvoorden 7/10 6027 days 1%
Caitriona Doyle 9/10 6029 days 1%
Toni 8/10 6029 days 1%
Nick 8/10 6034 days 1%
Pam K 10/10 6034 days 1%
Coby Aalbrecht 9/10 6034 days 1%
Peter Tres 10/10 6050 days 1%
Mitchell Mapletree 10/10 6051 days 1%
sanneb1 8/10 6082 days 1%
andres 9/10 6089 days 1%
catdonjaime 10/10 6090 days 1%
Christian Jean Louis 9/10 6099 days 1%
anniest 9/10 6101 days 1%
vernenal 9/10 6101 days 1%
Steven Walsh 4/10 6105 days 0%
Christy 9/10 6107 days 1%
Ulyate 7/10 6108 days 1%
Andrea and Craig Swinson 9/10 6121 days 1%
Bettina illmann 9/10 6123 days 1%
Emily and Alex 10/10 6124 days 1%
Anna 9/10 6127 days 1%
PatH 10/10 6141 days 1%
Evan 9/10 6158 days 1%
clairet 8/10 6205 days 1%
zoed 8/10 6295 days 1%
glennandjen 9/10 6310 days 1%
Sofie 9/10 6310 days 1%
Michael Maddams 8/10 6339 days 1%
LaurensD 6/10 6341 days 1%
gerhardm 8/10 6341 days 1%
Ide 8/10 6342 days 1%
Olga 7/10 6342 days 1%
Sam 8/10 6342 days 1%
Christopher 9/10 6345 days 1%
Kim 9/10 6345 days 1%
Marc 9/10 6345 days 1%
SBlake 10/10 6346 days 1%
Steve Harper 8/10 6348 days 1%
WinstonH 8/10 6360 days 1%
Silhan 9/10 6361 days 1%
Elizabeth 10/10 6364 days 1%
CarolineZ 9/10 6368 days 1%
FloorN 9/10 6368 days 1%
OllyD 9/10 6370 days 1%
Sally477 9/10 6372 days 1%
Tom 9/10 6374 days 1%
Tom 9/10 6374 days 1%
Rafael 9/10 6377 days 1%
soccaplaya14 9/10 6380 days 1%
AbigailB 10/10 6386 days 1%
Simon 10/10 6390 days 1%
Melanie 8/10 6391 days 1%
Rob 7/10 6391 days 1%
Simon 10/10 6391 days 1%
orianne 8/10 6397 days 1%
Florian 9/10 6398 days 1%
rustytrombone 9/10 6400 days 1%
Martha 7/10 6404 days 1%
Thamar 9/10 6405 days 1%
Karen 10/10 6405 days 1%
Burkhardt 7/10 6407 days 1%
Denis 10/10 6410 days 1%
Kim 10/10 6412 days 1%
Erik 8/10 6413 days 1%
Lucas 10/10 6413 days 1%
Jorn 8/10 6415 days 1%
Hazel 6/10 6415 days 1%
Andrew 9/10 6417 days 1%
Jess 8/10 6466 days 1%
Tim 7/10 6471 days 1%
Jacinta 8/10 6471 days 1%
Ben 10/10 6481 days 1%
Richard 8/10 6520 days 1%
David 10/10 6560 days 1%
Kees 7/10 6565 days 1%
Jorn 8/10 6573 days 1%
Brian 10/10 6589 days 1%
Nikki Gray 9/10 6591 days 1%
Tim 8/10 6613 days 1%
Mike Dudey 8/10 6622 days 1%
Michael White 8/10 6703 days 1%
Erin White 9/10 6704 days 1%
Heckter 7/10 6712 days 1%
Benjamin Krein 9/10 6732 days 1%
Jacinta 8/10 6732 days 1%
Tony Wicks 8/10 6738 days 1%
Bethany Webster 10/10 6740 days 1%
Hannah Holmes 7/10 6741 days 1%
Miranda 7/10 6742 days 1%
Amy 9/10 6750 days 1%
Gina 10/10 6750 days 1%
Julie 9/10 6750 days 1%
Ed 8/10 6750 days 1%
Laurie 10/10 6752 days 1%
Katharina 10/10 6753 days 1%
Juliet 10/10 6754 days 1%
Laura 10/10 6754 days 1%
Porrie 8/10 6766 days 1%
Chris 10/10 6766 days 1%
Dani 9/10 6766 days 1%
Stacey 10/10 6766 days 1%
Aske Helbor 6/10 6784 days 1%
ranker_734 5/10 6784 days 1%
Anu 8/10 6787 days 1%
marie-pier Poulin 10/10 6811 days 1%
Willemien 8/10 6833 days 1%
Rob Boston 10/10 6889 days 1%
purplekat99 10/10 6889 days 1%
Jessica Callen 8/10 6942 days 1%
Sabine 10/10 7052 days 1%
Linda 8/10 7056 days 1%
Helen 9/10 7058 days 1%
Matt 8/10 7058 days 1%
Richard 9/10 7058 days 1%
ShoshanaAbrams 7/10 7061 days 1%
Elaine 7/10 7061 days 1%
Marcus 10/10 7068 days 1%
Dave 6/10 7070 days 1%
Fran 6/10 7070 days 1%
Daniel 7/10 7070 days 1%
Janning 8/10 7076 days 1%
Melanie 9/10 7076 days 1%
NeilYeoman 8/10 7077 days 1%
Valerie 10/10 7077 days 1%
Sean 7/10 7080 days 1%
Marcus 9/10 7080 days 1%
Katie 9/10 7080 days 1%
Annette 8/10 7095 days 1%
AnnaOwen 9/10 7096 days 1%
Karen Nellist 10/10 7096 days 1%
MariaNorman 10/10 7097 days 1%
Malon 8/10 7097 days 1%
Bill 10/10 7104 days 1%
Suzy 9/10 7111 days 1%
Nynne 8/10 7113 days 1%
Johanne 9/10 7117 days 1%
Twan 10/10 7117 days 1%
FredAndersson 10/10 7117 days 1%
Cat 9/10 7119 days 1%
Akene 9/10 7119 days 1%
Paul 3/10 7119 days 0%
Stauros 10/10 7119 days 1%
Majken 9/10 7130 days 1%
Alexia 9/10 7130 days 1%
ranker_410 10/10 7130 days 1%
LisaAllen 9/10 7132 days 1%

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 Black Water Rafting Labyrinth Tour experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-1.49% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 118 days. However the Black Water Rafting Labyrinth Tour 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 Black Water Rafting Labyrinth Tour experience has been adjusted for 134 days. Adjustments are according to the following table.

Days Adjustment
131 -1.45%
132 -1.46%
133 -1.48%
134 -1.49%
135 -1.50%
136 -1.51%
137 -1.52%

Balancing Adjustment

1.24% 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

90%

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.