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

85.77%

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 8/10 221 days true 110.71 100%
Dominik and Alex 9/10 463 days true 79.24 71%
Mark Haydon 9/10 481 days 63.34 57%
Alex Victor 10/10 484 days true 75.46 68%
Max Mueller 9/10 527 days true 67.19 60%
Wouter Bleckmann 7/10 531 days true 66.38 60%
May 10/10 555 days true 61.45 55%
Nolan Townsend 9/10 566 days true 59.21 53%
Robert Wolf 9/10 579 days true 56.63 51%
Anne Bezanson 7/10 584 days true 55.65 50%
Julian Gury 8/10 586 days true 55.27 49%
shelley smith 10/10 696 days 30.23 27%
Heidi Hipp 8/10 793 days true 23.34 20%
Christian Krause 10/10 805 days true 21.99 19%
Stephanie Still 9/10 808 days true 21.66 19%
Dahlia Ahmed 9/10 809 days true 21.55 19%
Sebastiaan 8/10 809 days true 21.55 19%
Olivier Anciaux 6/10 811 days true 21.34 19%
Laura Moore 10/10 817 days true 20.7 18%
Lauren Dinnage 10/10 818 days true 20.59 18%
Joe Rogers 8/10 822 days true 20.17 18%
Signe Broedbaek 6/10 828 days true 19.56 17%
Lukas Seager 10/10 828 days true 19.56 17%
Michaela Bartotini 9/10 833 days true 19.05 16%
Verena 10/10 836 days true 18.76 16%
Kirsten Gehrenbeck 8/10 847 days true 17.7 15%
Anna Bouteloup 10/10 850 days true 17.41 15%
Tamara 8/10 850 days true 17.41 15%
Cosmo Hartuna 9/10 855 days true 16.95 15%
Nora Hoethoefer 10/10 855 days true 16.95 15%
Ricardo Kalbhen 8/10 855 days true 16.95 15%
Franziska Hohmann 6/10 861 days true 16.41 14%
Alice Melker 8/10 862 days true 16.32 14%
Vanesha Patel 10/10 870 days true 15.63 13%
Janine 8/10 873 days true 15.37 13%
Marc 7/10 892 days true 13.84 12%
James Newton 10/10 905 days true 12.86 11%
Elizabeth Nash 6/10 910 days true 12.51 11%
Emma Keegan 10/10 1153 days 4.92 4%
Robert Wieclawski 5/10 1184 days 4.88 4%
Emma 8/10 1184 days 4.88 4%
Jade Cownley 8/10 1197 days true 5.83 4%
Ives van der Sluijs 6/10 1231 days true 5.78 4%
Richard 10/10 1427 days 4.55 3%
Caroline Jonsson 8/10 1517 days true 5.31 4%
Jonny Ronnblom 8/10 1517 days true 5.31 4%
James Russell 8/10 1525 days true 5.29 4%
Hannah Watt 8/10 1525 days true 5.29 4%
Alex 8/10 1527 days true 5.29 4%
Becky 9/10 1527 days true 5.29 4%
Patricia Erni 8/10 1527 days true 5.29 4%
Robert Erni 9/10 1527 days true 5.29 4%
Christina 8/10 1531 days true 5.28 4%
Kathrin Lerch 9/10 1531 days true 5.28 4%
Paolo Cases 3/10 1531 days true 4.89 4%
Laura 10/10 1543 days true 5.26 4%
Joanna Mulcahy 10/10 1546 days true 5.26 4%
Tobias Thull 7/10 1552 days true 5.25 4%
Dana 2/10 1567 days true 4.7 3%
Jan Pekarek 7/10 1595 days true 5.18 4%
Lenka Dvorauova 8/10 1595 days true 5.18 4%
Camille Gagnant 10/10 1598 days true 5.17 4%
Anne Collet 10/10 1601 days true 5.17 4%
Marine 8/10 1605 days true 5.16 4%
Ken S 10/10 1639 days 4.25 3%
Jeremy 9/10 1639 days 4.25 3%
Christian Marzy 9/10 1883 days 3.92 3%
Yves Vennewald 6/10 1901 days true 4.68 3%
Silvia-Marie Bront 10/10 1913 days true 4.66 3%
Tina 8/10 1920 days true 4.64 3%
Jean Raisin 7/10 1920 days true 4.64 3%
TJ and Julie Edwards 10/10 1927 days true 4.63 3%
Fabian and Teresa 9/10 1935 days true 4.62 3%
Kyle Guffei 10/10 1937 days true 4.62 3%
Reinier Timmer 8/10 1986 days true 4.54 3%
Alastair MacDonald 8/10 1991 days true 4.53 3%
Moorman 8/10 1995 days true 4.52 3%
Cennart ud Brock 8/10 2003 days true 4.51 3%
Barbara 10/10 2004 days true 4.51 3%
Pietersen 8/10 2015 days true 4.49 3%
Ben Simons 9/10 2275 days true 4.06 3%
Duncan Mallison 9/10 2285 days true 4.04 3%
Mats Harstedt 7/10 2288 days true 4.04 3%
Deana Peters 8/10 2291 days true 4.03 3%
Sebastian Rossbach 9/10 2291 days true 4.03 3%
Preben vil Helmsen 7/10 2291 days true 4.03 3%
Andrea Bircher 9/10 2293 days true 4.03 3%
Simon Fry 8/10 2293 days true 4.03 3%
Eline Vakentijn 8/10 2293 days true 4.03 3%
Nikki Bentley 7/10 2294 days true 4.03 3%
Franziska & Katrin 6/10 2300 days true 4.02 3%
Graham Swinyard 9/10 2302 days true 4.02 3%
Ursi Meier 9/10 2302 days true 4.02 3%
Roger ter Horst 7/10 2303 days true 4.01 3%
R Laurysen 7/10 2305 days true 4.01 3%
Adam Critchley 9/10 2305 days true 4.01 3%
Lindblom 9/10 2305 days true 4.01 3%
Claudia & Julian 9/10 2306 days true 4.01 3%
Julia Balionis 10/10 2353 days true 3.93 3%
Stefan Nitsch 8/10 2374 days true 3.9 3%
Malaea_Tangi01 10/10 2400 days 3.21 2%
visser01 9/10 2431 days 3.17 2%
pauliebates 9/10 2461 days 3.13 2%
rgoodwi3 10/10 2553 days 3.0 2%
Jordy 9/10 2584 days 2.96 2%
Houstons 5/10 2584 days 2.96 2%
Stefanny Ling 9/10 2610 days true 3.51 2%
English_Campers 10/10 2614 days 2.92 2%
Lindsey Clough 10/10 2623 days true 3.49 2%
Franzi & Tobi 9/10 2625 days true 3.48 2%
Johanna & Mark 7/10 2627 days true 3.48 2%
Stefanie 7/10 2628 days true 3.48 2%
Natalie Maguire 10/10 2628 days true 3.48 2%
Julia 10/10 2628 days true 3.48 2%
Jo Meekley 10/10 2629 days true 3.48 2%
Astrid N 9/10 2632 days true 3.47 2%
Marty Fey 9/10 2636 days true 3.47 2%
Amanda Neall 10/10 2637 days true 3.47 2%
Ellie Thompson 10/10 2637 days true 3.47 2%
Barry Barnes 9/10 2639 days true 3.46 2%
Katherine Forward 9/10 2639 days true 3.46 2%
Shirley 6/10 2643 days true 3.46 2%
S and A Koehue 9/10 2645 days true 3.45 2%
Matthew Franklin 10/10 2647 days true 3.45 2%
Annelie & Martin 9/10 2649 days true 3.45 2%
Justin Pearce 9/10 2649 days true 3.45 2%
Claire Hoyland 9/10 2660 days true 3.43 2%
Tayler Gray 9/10 2660 days true 3.43 2%
Dave and Emma 9/10 2661 days true 3.43 2%
E M Klap 9/10 2664 days true 3.42 2%
Matthijs Muijsers 9/10 2666 days true 3.42 2%
C Gobl 9/10 2672 days true 3.41 2%
Michelle Booty 9/10 2672 days true 3.41 2%
Jenny 9/10 2674 days true 3.4 2%
Shoe 7/10 2735 days 2.75 2%
Lance 9/10 2765 days 2.71 2%
Julie 10/10 2796 days 2.67 2%
soph_p 9/10 2796 days 2.67 2%
katiec82 10/10 2826 days 2.63 2%
Theta 9/10 2979 days 2.42 1%
astridaus 7/10 2979 days true 2.9 2%
Don Keith 9/10 2997 days true 2.87 2%
Don & Alice 9/10 3014 days true 2.85 2%
Krause 5/10 3019 days true 2.84 2%
Jannievan Osnabrugge 9/10 3020 days true 2.84 2%
Tim Stick 8/10 3024 days true 2.83 2%
Martÿn Steenvoorden 7/10 3030 days true 2.82 2%
Caitriona Doyle 9/10 3032 days true 2.82 2%
Toni 8/10 3032 days true 2.82 2%
Nick 8/10 3037 days true 2.81 2%
Pam K 10/10 3037 days true 2.81 2%
Coby Aalbrecht 9/10 3037 days true 2.81 2%
Peter Tres 10/10 3053 days true 2.78 2%
Mitchell Mapletree 10/10 3054 days true 2.78 2%
sanneb1 8/10 3085 days true 2.73 2%
andres 9/10 3092 days true 2.72 2%
catdonjaime 10/10 3093 days true 2.72 2%
Christian Jean Louis 9/10 3102 days true 2.7 2%
anniest 9/10 3104 days true 2.7 2%
vernenal 9/10 3104 days true 2.7 2%
Steven Walsh 4/10 3108 days true 2.53 1%
Christy 9/10 3110 days true 2.69 2%
Ulyate 7/10 3111 days true 2.69 2%
Andrea and Craig Swinson 9/10 3124 days true 2.66 2%
Bettina illmann 9/10 3126 days true 2.66 2%
Emily and Alex 10/10 3127 days true 2.66 2%
Anna 9/10 3130 days 2.21 1%
PatH 10/10 3144 days true 2.63 2%
Evan 9/10 3161 days true 2.6 2%
clairet 8/10 3209 days true 2.52 1%
zoed 8/10 3299 days true 2.38 1%
glennandjen 9/10 3314 days 1.96 1%
Sofie 9/10 3314 days 1.96 1%
Michael Maddams 8/10 3342 days true 2.31 1%
LaurensD 6/10 3344 days true 2.3 1%
gerhardm 8/10 3344 days true 2.3 1%
Ide 8/10 3345 days true 2.3 1%
Olga 7/10 3345 days true 2.3 1%
Sam 8/10 3345 days true 2.3 1%
Christopher 9/10 3348 days true 2.3 1%
Kim 9/10 3348 days true 2.3 1%
Marc 9/10 3348 days true 2.3 1%
SBlake 10/10 3349 days true 2.29 1%
Steve Harper 8/10 3351 days true 2.29 1%
WinstonH 8/10 3363 days true 2.27 1%
Silhan 9/10 3364 days true 2.27 1%
Elizabeth 10/10 3367 days true 2.27 1%
CarolineZ 9/10 3371 days true 2.26 1%
FloorN 9/10 3371 days true 2.26 1%
OllyD 9/10 3373 days true 2.26 1%
Sally477 9/10 3375 days 1.88 1%
Tom 9/10 3378 days true 2.25 1%
Tom 9/10 3378 days true 2.25 1%
Rafael 9/10 3380 days true 2.24 1%
soccaplaya14 9/10 3384 days 1.86 1%
AbigailB 10/10 3389 days true 2.23 1%
Simon 10/10 3393 days true 2.22 1%
Melanie 8/10 3394 days true 2.22 1%
Rob 7/10 3394 days true 2.22 1%
Simon 10/10 3395 days true 2.22 1%
orianne 8/10 3401 days 1.84 1%
Florian 9/10 3401 days true 2.21 1%
rustytrombone 9/10 3403 days 1.84 1%
Martha 7/10 3408 days true 2.2 1%
Thamar 9/10 3408 days true 2.2 1%
Karen 10/10 3408 days true 2.2 1%
Burkhardt 7/10 3410 days true 2.19 1%
Denis 10/10 3413 days true 2.19 1%
Kim 10/10 3415 days true 2.19 1%
Erik 8/10 3416 days true 2.18 1%
Lucas 10/10 3416 days true 2.18 1%
Jorn 8/10 3418 days true 2.18 1%
Hazel 6/10 3418 days true 2.18 1%
Andrew 9/10 3420 days true 2.18 1%
Jess 8/10 3470 days true 2.1 1%
Tim 7/10 3474 days true 2.09 1%
Jacinta 8/10 3474 days true 2.09 1%
Ben 10/10 3485 days true 2.07 1%
Richard 8/10 3523 days true 2.01 1%
David 10/10 3563 days true 1.94 1%
Kees 7/10 3568 days true 1.93 1%
Jorn 8/10 3576 days true 1.92 1%
Brian 10/10 3592 days true 1.9 1%
Nikki Gray 9/10 3594 days true 1.89 1%
Tim 8/10 3616 days true 1.86 1%
Mike Dudey 8/10 3626 days true 1.84 1%
Michael White 8/10 3706 days true 1.71 1%
Erin White 9/10 3707 days true 1.71 1%
Heckter 7/10 3715 days true 1.69 1%
Benjamin Krein 9/10 3735 days true 1.66 1%
Jacinta 8/10 3735 days true 1.66 1%
Tony Wicks 8/10 3741 days true 1.65 1%
Bethany Webster 10/10 3743 days true 1.65 1%
Hannah Holmes 7/10 3744 days true 1.65 1%
Miranda 7/10 3745 days true 1.64 1%
Amy 9/10 3753 days true 1.63 1%
Gina 10/10 3753 days true 1.63 1%
Julie 9/10 3753 days true 1.63 1%
Ed 8/10 3753 days true 1.63 1%
Laurie 10/10 3755 days true 1.63 1%
Katharina 10/10 3756 days true 1.63 1%
Juliet 10/10 3757 days true 1.62 1%
Laura 10/10 3757 days true 1.62 1%
Porrie 8/10 3769 days true 1.6 1%
Chris 10/10 3769 days true 1.6 1%
Dani 9/10 3769 days true 1.6 1%
Stacey 10/10 3769 days true 1.6 1%
Aske Helbor 6/10 3787 days true 1.57 1%
ranker_734 5/10 3787 days true 1.57 1%
Anu 8/10 3790 days true 1.57 1%
marie-pier Poulin 10/10 3814 days true 1.53 1%
Willemien 8/10 3836 days true 1.49 0%
Rob Boston 10/10 3892 days 1.17 0%
purplekat99 10/10 3892 days 1.17 0%
Jessica Callen 8/10 3946 days true 1.31 0%
Sabine 10/10 4056 days true 1.13 0%
Linda 8/10 4060 days true 1.13 0%
Helen 9/10 4062 days true 1.12 0%
Matt 8/10 4062 days true 1.12 0%
Richard 9/10 4062 days true 1.12 0%
ShoshanaAbrams 7/10 4065 days true 1.12 0%
Elaine 7/10 4065 days true 1.12 0%
Marcus 10/10 4072 days true 1.11 0%
Dave 6/10 4074 days true 1.1 0%
Fran 6/10 4074 days true 1.1 0%
Daniel 7/10 4074 days true 1.1 0%
Janning 8/10 4080 days true 1.09 0%
Melanie 9/10 4080 days true 1.09 0%
NeilYeoman 8/10 4081 days true 1.09 0%
Valerie 10/10 4081 days true 1.09 0%
Sean 7/10 4084 days true 1.09 0%
Marcus 9/10 4084 days true 1.09 0%
Katie 9/10 4084 days true 1.09 0%
Annette 8/10 4098 days true 1.06 0%
AnnaOwen 9/10 4099 days true 1.06 0%
Karen Nellist 10/10 4099 days true 1.06 0%
MariaNorman 10/10 4100 days true 1.06 0%
Malon 8/10 4100 days true 1.06 0%
Bill 10/10 4107 days true 1.05 0%
Suzy 9/10 4114 days true 1.04 0%
Nynne 8/10 4116 days true 1.03 0%
Johanne 9/10 4120 days true 1.03 0%
Twan 10/10 4120 days true 1.03 0%
FredAndersson 10/10 4120 days true 1.03 0%
Cat 9/10 4122 days true 1.02 0%
Akene 9/10 4122 days true 1.02 0%
Paul 3/10 4122 days true 0.95 0%
Stauros 10/10 4122 days true 1.02 0%
Majken 9/10 4133 days true 1.01 0%
Alexia 9/10 4133 days true 1.01 0%
ranker_410 10/10 4133 days true 1.01 0%
LisaAllen 9/10 4135 days true 1.0 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

-3.74% 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 187 days. Adjustments are according to the following table.

Days Adjustment
184 -3.68%
185 -3.70%
186 -3.72%
187 -3.74%
188 -3.76%
189 -3.78%
190 -3.80%

Final Ranking Score

82%

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.