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 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.

Nick Morrison's avatar

Nick Morrison

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

85.83%

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 8/10 128 days 100%
Dominik and Alex 9/10 370 days 80%
Mark Haydon 9/10 388 days 65%
Alex Victor 10/10 391 days 78%
Max Mueller 9/10 434 days 72%
Wouter Bleckmann 7/10 438 days 71%
May 10/10 462 days 68%
Nolan Townsend 9/10 473 days 66%
Robert Wolf 9/10 486 days 64%
Anne Bezanson 7/10 491 days 63%
Julian Gury 8/10 493 days 63%
shelley smith 10/10 603 days 37%
Heidi Hipp 8/10 700 days 30%
Christian Krause 10/10 712 days 28%
Stephanie Still 9/10 715 days 28%
Dahlia Ahmed 9/10 716 days 28%
Sebastiaan 8/10 716 days 28%
Olivier Anciaux 6/10 718 days 28%
Laura Moore 10/10 724 days 27%
Lauren Dinnage 10/10 725 days 27%
Joe Rogers 8/10 729 days 26%
Signe Broedbaek 6/10 735 days 26%
Lukas Seager 10/10 735 days 26%
Michaela Bartotini 9/10 740 days 25%
Verena 10/10 743 days 25%
Kirsten Gehrenbeck 8/10 754 days 23%
Anna Bouteloup 10/10 757 days 23%
Tamara 8/10 757 days 23%
Cosmo Hartuna 9/10 762 days 22%
Nora Hoethoefer 10/10 762 days 22%
Ricardo Kalbhen 8/10 762 days 22%
Franziska Hohmann 6/10 768 days 22%
Alice Melker 8/10 769 days 22%
Vanesha Patel 10/10 777 days 21%
Janine 8/10 780 days 21%
Marc 7/10 799 days 19%
James Newton 10/10 812 days 17%
Elizabeth Nash 6/10 817 days 17%
Emma Keegan 10/10 1060 days 4%
Robert Wieclawski 5/10 1091 days 3%
Emma 8/10 1091 days 3%
Jade Cownley 8/10 1104 days 4%
Ives van der Sluijs 6/10 1138 days 4%
Richard 10/10 1334 days 3%
Caroline Jonsson 8/10 1424 days 4%
Jonny Ronnblom 8/10 1424 days 4%
James Russell 8/10 1432 days 4%
Hannah Watt 8/10 1432 days 4%
Alex 8/10 1434 days 4%
Becky 9/10 1434 days 4%
Patricia Erni 8/10 1434 days 4%
Robert Erni 9/10 1434 days 4%
Christina 8/10 1438 days 4%
Kathrin Lerch 9/10 1438 days 4%
Paolo Cases 3/10 1438 days 3%
Laura 10/10 1450 days 4%
Joanna Mulcahy 10/10 1453 days 4%
Tobias Thull 7/10 1459 days 4%
Dana 2/10 1474 days 3%
Jan Pekarek 7/10 1502 days 4%
Lenka Dvorauova 8/10 1502 days 4%
Camille Gagnant 10/10 1505 days 4%
Anne Collet 10/10 1508 days 4%
Marine 8/10 1512 days 4%
Ken S 10/10 1546 days 3%
Jeremy 9/10 1546 days 3%
Christian Marzy 9/10 1790 days 3%
Yves Vennewald 6/10 1808 days 3%
Silvia-Marie Bront 10/10 1820 days 3%
Tina 8/10 1827 days 3%
Jean Raisin 7/10 1827 days 3%
TJ and Julie Edwards 10/10 1834 days 3%
Fabian and Teresa 9/10 1842 days 3%
Kyle Guffei 10/10 1844 days 3%
Reinier Timmer 8/10 1893 days 3%
Alastair MacDonald 8/10 1898 days 3%
Moorman 8/10 1902 days 3%
Cennart ud Brock 8/10 1910 days 3%
Barbara 10/10 1911 days 3%
Pietersen 8/10 1922 days 3%
Ben Simons 9/10 2182 days 3%
Duncan Mallison 9/10 2192 days 3%
Mats Harstedt 7/10 2195 days 3%
Deana Peters 8/10 2198 days 3%
Sebastian Rossbach 9/10 2198 days 3%
Preben vil Helmsen 7/10 2198 days 3%
Andrea Bircher 9/10 2200 days 3%
Simon Fry 8/10 2200 days 3%
Eline Vakentijn 8/10 2200 days 3%
Nikki Bentley 7/10 2201 days 3%
Franziska & Katrin 6/10 2207 days 3%
Graham Swinyard 9/10 2209 days 3%
Ursi Meier 9/10 2209 days 3%
Roger ter Horst 7/10 2210 days 3%
R Laurysen 7/10 2212 days 3%
Adam Critchley 9/10 2212 days 3%
Lindblom 9/10 2212 days 3%
Claudia & Julian 9/10 2213 days 3%
Julia Balionis 10/10 2260 days 3%
Stefan Nitsch 8/10 2281 days 3%
Malaea_Tangi01 10/10 2307 days 2%
visser01 9/10 2338 days 2%
pauliebates 9/10 2368 days 2%
rgoodwi3 10/10 2460 days 2%
Jordy 9/10 2491 days 2%
Houstons 5/10 2491 days 2%
Stefanny Ling 9/10 2517 days 2%
English_Campers 10/10 2521 days 2%
Lindsey Clough 10/10 2530 days 2%
Franzi & Tobi 9/10 2532 days 2%
Johanna & Mark 7/10 2534 days 2%
Stefanie 7/10 2535 days 2%
Natalie Maguire 10/10 2535 days 2%
Julia 10/10 2535 days 2%
Jo Meekley 10/10 2536 days 2%
Astrid N 9/10 2539 days 2%
Marty Fey 9/10 2543 days 2%
Amanda Neall 10/10 2544 days 2%
Ellie Thompson 10/10 2544 days 2%
Barry Barnes 9/10 2546 days 2%
Katherine Forward 9/10 2546 days 2%
Shirley 6/10 2550 days 2%
S and A Koehue 9/10 2552 days 2%
Matthew Franklin 10/10 2554 days 2%
Annelie & Martin 9/10 2556 days 2%
Justin Pearce 9/10 2556 days 2%
Claire Hoyland 9/10 2567 days 2%
Tayler Gray 9/10 2567 days 2%
Dave and Emma 9/10 2568 days 2%
E M Klap 9/10 2571 days 2%
Matthijs Muijsers 9/10 2573 days 2%
C Gobl 9/10 2579 days 2%
Michelle Booty 9/10 2579 days 2%
Jenny 9/10 2581 days 2%
Shoe 7/10 2642 days 2%
Lance 9/10 2672 days 2%
Julie 10/10 2703 days 1%
soph_p 9/10 2703 days 1%
katiec82 10/10 2733 days 1%
Theta 9/10 2886 days 1%
astridaus 7/10 2886 days 2%
Don Keith 9/10 2904 days 2%
Don & Alice 9/10 2921 days 2%
Krause 5/10 2926 days 2%
Jannievan Osnabrugge 9/10 2927 days 2%
Tim Stick 8/10 2931 days 2%
Martÿn Steenvoorden 7/10 2937 days 2%
Caitriona Doyle 9/10 2939 days 2%
Toni 8/10 2939 days 2%
Nick 8/10 2944 days 2%
Pam K 10/10 2944 days 2%
Coby Aalbrecht 9/10 2944 days 2%
Peter Tres 10/10 2960 days 2%
Mitchell Mapletree 10/10 2961 days 2%
sanneb1 8/10 2992 days 2%
andres 9/10 2999 days 2%
catdonjaime 10/10 3000 days 2%
Christian Jean Louis 9/10 3009 days 2%
anniest 9/10 3011 days 2%
vernenal 9/10 3011 days 2%
Steven Walsh 4/10 3015 days 1%
Christy 9/10 3017 days 2%
Ulyate 7/10 3018 days 2%
Andrea and Craig Swinson 9/10 3031 days 1%
Bettina illmann 9/10 3033 days 1%
Emily and Alex 10/10 3034 days 1%
Anna 9/10 3037 days 1%
PatH 10/10 3051 days 1%
Evan 9/10 3068 days 1%
clairet 8/10 3116 days 1%
zoed 8/10 3206 days 1%
glennandjen 9/10 3221 days 1%
Sofie 9/10 3221 days 1%
Michael Maddams 8/10 3249 days 1%
LaurensD 6/10 3251 days 1%
gerhardm 8/10 3251 days 1%
Ide 8/10 3252 days 1%
Olga 7/10 3252 days 1%
Sam 8/10 3252 days 1%
Christopher 9/10 3255 days 1%
Kim 9/10 3255 days 1%
Marc 9/10 3255 days 1%
SBlake 10/10 3256 days 1%
Steve Harper 8/10 3258 days 1%
WinstonH 8/10 3270 days 1%
Silhan 9/10 3271 days 1%
Elizabeth 10/10 3274 days 1%
CarolineZ 9/10 3278 days 1%
FloorN 9/10 3278 days 1%
OllyD 9/10 3280 days 1%
Sally477 9/10 3282 days 1%
Tom 9/10 3284 days 1%
Tom 9/10 3284 days 1%
Rafael 9/10 3287 days 1%
soccaplaya14 9/10 3291 days 1%
AbigailB 10/10 3296 days 1%
Simon 10/10 3300 days 1%
Melanie 8/10 3301 days 1%
Rob 7/10 3301 days 1%
Simon 10/10 3301 days 1%
orianne 8/10 3308 days 1%
Florian 9/10 3308 days 1%
rustytrombone 9/10 3310 days 1%
Martha 7/10 3315 days 1%
Thamar 9/10 3315 days 1%
Karen 10/10 3315 days 1%
Burkhardt 7/10 3317 days 1%
Denis 10/10 3320 days 1%
Kim 10/10 3322 days 1%
Erik 8/10 3323 days 1%
Lucas 10/10 3323 days 1%
Jorn 8/10 3325 days 1%
Hazel 6/10 3325 days 1%
Andrew 9/10 3327 days 1%
Jess 8/10 3377 days 1%
Tim 7/10 3381 days 1%
Jacinta 8/10 3381 days 1%
Ben 10/10 3392 days 1%
Richard 8/10 3430 days 1%
David 10/10 3470 days 1%
Kees 7/10 3475 days 1%
Jorn 8/10 3483 days 1%
Brian 10/10 3499 days 1%
Nikki Gray 9/10 3501 days 1%
Tim 8/10 3523 days 1%
Mike Dudey 8/10 3533 days 1%
Michael White 8/10 3613 days 1%
Erin White 9/10 3614 days 1%
Heckter 7/10 3622 days 1%
Benjamin Krein 9/10 3642 days 1%
Jacinta 8/10 3642 days 1%
Tony Wicks 8/10 3648 days 1%
Bethany Webster 10/10 3650 days 1%
Hannah Holmes 7/10 3651 days 1%
Miranda 7/10 3652 days 1%
Amy 9/10 3660 days 1%
Gina 10/10 3660 days 1%
Julie 9/10 3660 days 1%
Ed 8/10 3660 days 1%
Laurie 10/10 3662 days 1%
Katharina 10/10 3663 days 1%
Juliet 10/10 3664 days 1%
Laura 10/10 3664 days 1%
Porrie 8/10 3676 days 1%
Chris 10/10 3676 days 1%
Dani 9/10 3676 days 1%
Stacey 10/10 3676 days 1%
Aske Helbor 6/10 3694 days 1%
ranker_734 5/10 3694 days 1%
Anu 8/10 3697 days 1%
marie-pier Poulin 10/10 3721 days 1%
Willemien 8/10 3743 days 0%
Rob Boston 10/10 3799 days 0%
purplekat99 10/10 3799 days 0%
Jessica Callen 8/10 3853 days 0%
Sabine 10/10 3963 days 0%
Linda 8/10 3967 days 0%
Helen 9/10 3969 days 0%
Matt 8/10 3969 days 0%
Richard 9/10 3969 days 0%
ShoshanaAbrams 7/10 3972 days 0%
Elaine 7/10 3972 days 0%
Marcus 10/10 3979 days 0%
Dave 6/10 3981 days 0%
Fran 6/10 3981 days 0%
Daniel 7/10 3981 days 0%
Janning 8/10 3987 days 0%
Melanie 9/10 3987 days 0%
NeilYeoman 8/10 3988 days 0%
Valerie 10/10 3988 days 0%
Sean 7/10 3991 days 0%
Marcus 9/10 3991 days 0%
Katie 9/10 3991 days 0%
Annette 8/10 4005 days 0%
AnnaOwen 9/10 4006 days 0%
Karen Nellist 10/10 4006 days 0%
MariaNorman 10/10 4007 days 0%
Malon 8/10 4007 days 0%
Bill 10/10 4014 days 0%
Suzy 9/10 4021 days 0%
Nynne 8/10 4023 days 0%
Johanne 9/10 4027 days 0%
Twan 10/10 4027 days 0%
FredAndersson 10/10 4027 days 0%
Cat 9/10 4029 days 0%
Akene 9/10 4029 days 0%
Paul 3/10 4029 days 0%
Stauros 10/10 4029 days 0%
Majken 9/10 4040 days 0%
Alexia 9/10 4040 days 0%
ranker_410 10/10 4040 days 0%
LisaAllen 9/10 4042 days 0%

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

-1.88% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 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 364 days.

The The Legendary Black Water Rafting Co. experience has been adjusted for 94 days. Adjustments are according to the following table.

Days Adjustment
91 -1.82%
92 -1.84%
93 -1.86%
94 -1.88%
95 -1.90%
96 -1.92%
97 -1.94%

Final Ranking Score

84%

The final ranking score once adjustments and 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.