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

85.18%

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
Allain Riepema 8/10 488 days true 74.72 100%
Dominik and Alex 9/10 730 days true 31.33 42%
Mark Haydon 9/10 747 days 24.19 32%
Alex Victor 10/10 751 days true 28.5 38%
Max Mueller 9/10 794 days true 23.23 31%
Wouter Bleckmann 7/10 798 days true 22.77 30%
May 10/10 822 days true 20.17 26%
Nolan Townsend 9/10 833 days true 19.05 25%
Robert Wolf 9/10 846 days true 17.79 23%
Anne Bezanson 7/10 851 days true 17.32 23%
Julian Gury 8/10 853 days true 17.14 22%
shelley smith 10/10 962 days 7.8 10%
Heidi Hipp 8/10 1060 days true 6.23 8%
Christian Krause 10/10 1072 days true 6.1 7%
Stephanie Still 9/10 1075 days true 6.08 7%
Dahlia Ahmed 9/10 1076 days true 6.07 7%
Sebastiaan 8/10 1076 days true 6.07 7%
Olivier Anciaux 6/10 1078 days true 6.05 7%
Laura Moore 10/10 1084 days true 6.02 7%
Lauren Dinnage 10/10 1085 days true 6.02 7%
Joe Rogers 8/10 1089 days true 6.01 7%
Signe Broedbaek 6/10 1095 days true 6.0 7%
Lukas Seager 10/10 1095 days true 6.0 7%
Michaela Bartotini 9/10 1100 days true 5.99 7%
Verena 10/10 1103 days true 5.99 7%
Kirsten Gehrenbeck 8/10 1114 days true 5.97 7%
Anna Bouteloup 10/10 1117 days true 5.96 7%
Tamara 8/10 1117 days true 5.96 7%
Cosmo Hartuna 9/10 1122 days true 5.96 7%
Nora Hoethoefer 10/10 1122 days true 5.96 7%
Ricardo Kalbhen 8/10 1122 days true 5.96 7%
Franziska Hohmann 6/10 1128 days true 5.95 7%
Alice Melker 8/10 1129 days true 5.94 7%
Vanesha Patel 10/10 1137 days true 5.93 7%
Janine 8/10 1140 days true 5.93 7%
Marc 7/10 1159 days true 5.89 7%
James Newton 10/10 1172 days true 5.87 7%
Elizabeth Nash 6/10 1177 days true 5.87 7%
Emma Keegan 10/10 1419 days 4.56 5%
Robert Wieclawski 5/10 1450 days 4.51 5%
Emma 8/10 1450 days 4.51 5%
Jade Cownley 8/10 1464 days true 5.39 7%
Ives van der Sluijs 6/10 1498 days true 5.34 6%
Richard 10/10 1694 days 4.18 5%
Caroline Jonsson 8/10 1784 days true 4.87 6%
Jonny Ronnblom 8/10 1784 days true 4.87 6%
James Russell 8/10 1792 days true 4.85 6%
Hannah Watt 8/10 1792 days true 4.85 6%
Alex 8/10 1794 days true 4.85 6%
Becky 9/10 1794 days true 4.85 6%
Patricia Erni 8/10 1794 days true 4.85 6%
Robert Erni 9/10 1794 days true 4.85 6%
Christina 8/10 1798 days true 4.84 6%
Kathrin Lerch 9/10 1798 days true 4.84 6%
Paolo Cases 3/10 1798 days true 4.48 5%
Laura 10/10 1810 days true 4.82 6%
Joanna Mulcahy 10/10 1813 days true 4.82 6%
Tobias Thull 7/10 1819 days true 4.81 6%
Dana 2/10 1834 days true 4.31 5%
Jan Pekarek 7/10 1862 days true 4.74 6%
Lenka Dvorauova 8/10 1862 days true 4.74 6%
Camille Gagnant 10/10 1865 days true 4.73 6%
Anne Collet 10/10 1868 days true 4.73 6%
Marine 8/10 1872 days true 4.72 6%
Ken S 10/10 1906 days 3.89 5%
Jeremy 9/10 1906 days 3.89 5%
Christian Marzy 9/10 2150 days 3.55 4%
Yves Vennewald 6/10 2168 days true 4.24 5%
Silvia-Marie Bront 10/10 2180 days true 4.22 5%
Tina 8/10 2187 days true 4.2 5%
Jean Raisin 7/10 2187 days true 4.2 5%
TJ and Julie Edwards 10/10 2194 days true 4.19 5%
Fabian and Teresa 9/10 2202 days true 4.18 5%
Kyle Guffei 10/10 2204 days true 4.18 5%
Reinier Timmer 8/10 2253 days true 4.1 5%
Alastair MacDonald 8/10 2258 days true 4.09 5%
Moorman 8/10 2262 days true 4.08 5%
Cennart ud Brock 8/10 2270 days true 4.07 5%
Barbara 10/10 2271 days true 4.07 5%
Pietersen 8/10 2282 days true 4.05 5%
Ben Simons 9/10 2542 days true 3.62 4%
Duncan Mallison 9/10 2552 days true 3.6 4%
Mats Harstedt 7/10 2555 days true 3.6 4%
Deana Peters 8/10 2558 days true 3.6 4%
Sebastian Rossbach 9/10 2558 days true 3.6 4%
Preben vil Helmsen 7/10 2558 days true 3.6 4%
Andrea Bircher 9/10 2560 days true 3.59 4%
Simon Fry 8/10 2560 days true 3.59 4%
Eline Vakentijn 8/10 2560 days true 3.59 4%
Nikki Bentley 7/10 2561 days true 3.59 4%
Franziska & Katrin 6/10 2567 days true 3.58 4%
Graham Swinyard 9/10 2569 days true 3.58 4%
Ursi Meier 9/10 2569 days true 3.58 4%
Roger ter Horst 7/10 2570 days true 3.58 4%
R Laurysen 7/10 2572 days true 3.57 4%
Adam Critchley 9/10 2572 days true 3.57 4%
Lindblom 9/10 2572 days true 3.57 4%
Claudia & Julian 9/10 2573 days true 3.57 4%
Julia Balionis 10/10 2620 days true 3.49 4%
Stefan Nitsch 8/10 2641 days true 3.46 4%
Malaea_Tangi01 10/10 2667 days 2.85 3%
visser01 9/10 2698 days 2.8 3%
pauliebates 9/10 2728 days 2.76 3%
rgoodwi3 10/10 2820 days 2.64 3%
Jordy 9/10 2851 days 2.59 3%
Houstons 5/10 2851 days 2.59 3%
Stefanny Ling 9/10 2877 days true 3.07 3%
English_Campers 10/10 2881 days 2.55 3%
Lindsey Clough 10/10 2890 days true 3.05 3%
Franzi & Tobi 9/10 2892 days true 3.05 3%
Johanna & Mark 7/10 2894 days true 3.04 3%
Stefanie 7/10 2895 days true 3.04 3%
Natalie Maguire 10/10 2895 days true 3.04 3%
Julia 10/10 2895 days true 3.04 3%
Jo Meekley 10/10 2896 days true 3.04 3%
Astrid N 9/10 2899 days true 3.03 3%
Marty Fey 9/10 2903 days true 3.03 3%
Amanda Neall 10/10 2904 days true 3.03 3%
Ellie Thompson 10/10 2904 days true 3.03 3%
Barry Barnes 9/10 2906 days true 3.02 3%
Katherine Forward 9/10 2906 days true 3.02 3%
Shirley 6/10 2910 days true 3.02 3%
S and A Koehue 9/10 2912 days true 3.01 3%
Matthew Franklin 10/10 2914 days true 3.01 3%
Annelie & Martin 9/10 2916 days true 3.01 3%
Justin Pearce 9/10 2916 days true 3.01 3%
Claire Hoyland 9/10 2927 days true 2.99 3%
Tayler Gray 9/10 2927 days true 2.99 3%
Dave and Emma 9/10 2928 days true 2.99 3%
E M Klap 9/10 2931 days true 2.98 3%
Matthijs Muijsers 9/10 2933 days true 2.98 3%
C Gobl 9/10 2939 days true 2.97 3%
Michelle Booty 9/10 2939 days true 2.97 3%
Jenny 9/10 2941 days true 2.97 3%
Shoe 7/10 3002 days 2.39 2%
Lance 9/10 3032 days 2.35 2%
Julie 10/10 3063 days 2.3 2%
soph_p 9/10 3063 days 2.3 2%
katiec82 10/10 3093 days 2.26 2%
Theta 9/10 3246 days 2.05 2%
astridaus 7/10 3246 days true 2.46 3%
Don Keith 9/10 3264 days true 2.43 3%
Don & Alice 9/10 3281 days true 2.41 3%
Krause 5/10 3286 days true 2.4 3%
Jannievan Osnabrugge 9/10 3287 days true 2.4 3%
Tim Stick 8/10 3291 days true 2.39 2%
Martÿn Steenvoorden 7/10 3297 days true 2.38 2%
Caitriona Doyle 9/10 3299 days true 2.38 2%
Toni 8/10 3299 days true 2.38 2%
Nick 8/10 3304 days true 2.37 2%
Pam K 10/10 3304 days true 2.37 2%
Coby Aalbrecht 9/10 3304 days true 2.37 2%
Peter Tres 10/10 3320 days true 2.34 2%
Mitchell Mapletree 10/10 3321 days true 2.34 2%
sanneb1 8/10 3352 days true 2.29 2%
andres 9/10 3359 days true 2.28 2%
catdonjaime 10/10 3360 days true 2.28 2%
Christian Jean Louis 9/10 3369 days true 2.26 2%
anniest 9/10 3371 days true 2.26 2%
vernenal 9/10 3371 days true 2.26 2%
Steven Walsh 4/10 3375 days true 2.12 2%
Christy 9/10 3377 days true 2.25 2%
Ulyate 7/10 3378 days true 2.25 2%
Andrea and Craig Swinson 9/10 3391 days true 2.23 2%
Bettina illmann 9/10 3393 days true 2.22 2%
Emily and Alex 10/10 3394 days true 2.22 2%
Anna 9/10 3397 days 1.85 2%
PatH 10/10 3411 days true 2.19 2%
Evan 9/10 3428 days true 2.16 2%
clairet 8/10 3476 days true 2.09 2%
zoed 8/10 3566 days true 1.94 2%
glennandjen 9/10 3581 days 1.59 1%
Sofie 9/10 3581 days 1.59 1%
Michael Maddams 8/10 3609 days true 1.87 2%
LaurensD 6/10 3611 days true 1.86 2%
gerhardm 8/10 3611 days true 1.86 2%
Ide 8/10 3612 days true 1.86 2%
Olga 7/10 3612 days true 1.86 2%
Sam 8/10 3612 days true 1.86 2%
Christopher 9/10 3615 days true 1.86 2%
Kim 9/10 3615 days true 1.86 2%
Marc 9/10 3615 days true 1.86 2%
SBlake 10/10 3616 days true 1.86 2%
Steve Harper 8/10 3618 days true 1.85 2%
WinstonH 8/10 3630 days true 1.83 2%
Silhan 9/10 3631 days true 1.83 2%
Elizabeth 10/10 3634 days true 1.83 2%
CarolineZ 9/10 3638 days true 1.82 2%
FloorN 9/10 3638 days true 1.82 2%
OllyD 9/10 3640 days true 1.82 2%
Sally477 9/10 3642 days 1.51 1%
Tom 9/10 3644 days true 1.81 2%
Tom 9/10 3644 days true 1.81 2%
Rafael 9/10 3647 days true 1.8 2%
soccaplaya14 9/10 3650 days 1.5 1%
AbigailB 10/10 3656 days true 1.79 2%
Simon 10/10 3660 days true 1.78 2%
Melanie 8/10 3661 days true 1.78 2%
Rob 7/10 3661 days true 1.78 2%
Simon 10/10 3661 days true 1.78 2%
orianne 8/10 3668 days 1.48 1%
Florian 9/10 3668 days true 1.77 2%
rustytrombone 9/10 3670 days 1.47 1%
Martha 7/10 3674 days true 1.76 2%
Thamar 9/10 3675 days true 1.76 2%
Karen 10/10 3675 days true 1.76 2%
Burkhardt 7/10 3677 days true 1.76 2%
Denis 10/10 3680 days true 1.75 2%
Kim 10/10 3682 days true 1.75 2%
Erik 8/10 3683 days true 1.75 2%
Lucas 10/10 3683 days true 1.75 2%
Jorn 8/10 3685 days true 1.74 2%
Hazel 6/10 3685 days true 1.74 2%
Andrew 9/10 3687 days true 1.74 2%
Jess 8/10 3736 days true 1.66 2%
Tim 7/10 3741 days true 1.65 1%
Jacinta 8/10 3741 days true 1.65 1%
Ben 10/10 3751 days true 1.63 1%
Richard 8/10 3790 days true 1.57 1%
David 10/10 3830 days true 1.5 1%
Kees 7/10 3835 days true 1.5 1%
Jorn 8/10 3843 days true 1.48 1%
Brian 10/10 3859 days true 1.46 1%
Nikki Gray 9/10 3861 days true 1.45 1%
Tim 8/10 3883 days true 1.42 1%
Mike Dudey 8/10 3892 days true 1.4 1%
Michael White 8/10 3973 days true 1.27 1%
Erin White 9/10 3974 days true 1.27 1%
Heckter 7/10 3982 days true 1.25 1%
Benjamin Krein 9/10 4002 days true 1.22 1%
Jacinta 8/10 4002 days true 1.22 1%
Tony Wicks 8/10 4008 days true 1.21 1%
Bethany Webster 10/10 4010 days true 1.21 1%
Hannah Holmes 7/10 4011 days true 1.21 1%
Miranda 7/10 4012 days true 1.2 1%
Amy 9/10 4020 days true 1.19 1%
Gina 10/10 4020 days true 1.19 1%
Julie 9/10 4020 days true 1.19 1%
Ed 8/10 4020 days true 1.19 1%
Laurie 10/10 4022 days true 1.19 1%
Katharina 10/10 4023 days true 1.19 1%
Juliet 10/10 4024 days true 1.19 1%
Laura 10/10 4024 days true 1.19 1%
Porrie 8/10 4036 days true 1.17 1%
Chris 10/10 4036 days true 1.17 1%
Dani 9/10 4036 days true 1.17 1%
Stacey 10/10 4036 days true 1.17 1%
Aske Helbor 6/10 4054 days true 1.14 1%
ranker_734 5/10 4054 days true 1.14 1%
Anu 8/10 4057 days true 1.13 1%
marie-pier Poulin 10/10 4081 days true 1.09 1%
Willemien 8/10 4103 days true 1.06 1%
Rob Boston 10/10 4159 days 0.8 0%
purplekat99 10/10 4159 days 0.8 0%
Jessica Callen 8/10 4213 days true 0.87 0%
Sabine 10/10 4323 days true 0.69 0%
Linda 8/10 4327 days true 0.69 0%
Helen 9/10 4329 days true 0.68 0%
Matt 8/10 4329 days true 0.68 0%
Richard 9/10 4329 days true 0.68 0%
ShoshanaAbrams 7/10 4332 days true 0.68 0%
Elaine 7/10 4332 days true 0.68 0%
Marcus 10/10 4339 days true 0.67 0%
Dave 6/10 4341 days true 0.66 0%
Fran 6/10 4341 days true 0.66 0%
Daniel 7/10 4341 days true 0.66 0%
Janning 8/10 4347 days true 0.65 0%
Melanie 9/10 4347 days true 0.65 0%
NeilYeoman 8/10 4348 days true 0.65 0%
Valerie 10/10 4348 days true 0.65 0%
Sean 7/10 4351 days true 0.65 0%
Marcus 9/10 4351 days true 0.65 0%
Katie 9/10 4351 days true 0.65 0%
Annette 8/10 4365 days true 0.62 0%
AnnaOwen 9/10 4366 days true 0.62 0%
Karen Nellist 10/10 4366 days true 0.62 0%
MariaNorman 10/10 4367 days true 0.62 0%
Malon 8/10 4367 days true 0.62 0%
Bill 10/10 4374 days true 0.61 0%
Suzy 9/10 4381 days true 0.6 0%
Nynne 8/10 4383 days true 0.6 0%
Johanne 9/10 4387 days true 0.59 0%
Twan 10/10 4387 days true 0.59 0%
FredAndersson 10/10 4387 days true 0.59 0%
Cat 9/10 4389 days true 0.59 0%
Akene 9/10 4389 days true 0.59 0%
Paul 3/10 4389 days true 0.54 0%
Stauros 10/10 4389 days true 0.59 0%
Majken 9/10 4400 days true 0.57 0%
Alexia 9/10 4400 days true 0.57 0%
ranker_410 10/10 4400 days true 0.57 0%
LisaAllen 9/10 4402 days true 0.56 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

-7.28% 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 364 days. Adjustments are according to the following table.

Days Adjustment
361 -7.22%
362 -7.24%
363 -7.26%
364 -7.28%
365 -7.30%
366 -7.32%
367 -7.34%

Final Ranking Score

78%

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.