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 Kahu Kayaks.

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

Kahu Kayaks

Valid Reviews

221 Valid Reviews

The Kahu Kayaks experience has a total of 222 reviews. There are 221 valid reviews that are included when calculating the ranking score and 1 invalid review 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 221 valid reviews:

Rating Count Percentage
10/10 110
50%
9/10 62
28%
8/10 36
16%
7/10 9
4%
6/10 3
1%
5/10 0
0%
4/10 0
0%
3/10 1
0%
2/10 0
0%
1/10 0
0%

91.86% Average

The raw data average (mean) for all the Kahu Kayaks valid reviews is 91.86% and is based on 221 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

174 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 221 valid reviews, the experience has 174 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 174 face-to-face reviews:

Rating Count Percentage
10/10 74
43%
9/10 55
32%
8/10 33
19%
7/10 8
5%
6/10 3
2%
5/10 0
0%
4/10 0
0%
3/10 1
1%
2/10 0
0%
1/10 0
0%

90.57% Average

The raw data average (mean) for all the Kahu Kayaks face-to-face reviews is 90.57% and is based on 174 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

91.66%

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
Pat Burns 10/10 81 days 98.96 100%
Sabine Gauss 9/10 804 days true 22.1 22%
Rashi Birla 10/10 824 days true 19.97 20%
Alex Patteron 10/10 864 days 13.46 13%
Marcel Felder 10/10 900 days true 13.23 13%
Tom Rogers 8/10 903 days true 13.01 13%
Olde Vogel 8/10 903 days true 13.01 13%
Lieke vol Velde 9/10 903 days true 13.01 13%
Katharina 8/10 908 days true 12.65 12%
Eurard Achille 8/10 916 days true 12.09 12%
Nickolas Jonkergouw 9/10 932 days true 11.05 11%
Miriam Gamble 9/10 947 days true 10.17 10%
Michelle O'Regen 10/10 1144 days true 5.92 6%
Dahlia Ahmed 9/10 1167 days true 5.88 5%
Lee Sandberg 10/10 1194 days true 5.84 5%
Tina Rust 10/10 1195 days true 5.84 5%
Alice and James 7/10 1213 days true 5.81 5%
Chloe Guerillot 6/10 1218 days true 5.8 5%
Christopher Rotsch 8/10 1252 days 4.78 4%
Tarillon Family 7/10 1532 days true 5.28 5%
Charles Aubry 9/10 1564 days true 5.23 5%
Arvid Hellquist 9/10 1574 days true 5.21 5%
Damaris Mayer 8/10 1581 days true 5.2 5%
David and Stephan 10/10 1611 days true 5.15 5%
Devan Sheppard 9/10 1629 days true 5.12 5%
Christina 7/10 1889 days true 4.69 4%
Kathrin Lerch 10/10 1889 days true 4.69 4%
Erik Nestlez 10/10 1890 days true 4.69 4%
Nina Helmling 8/10 1905 days true 4.67 4%
Steffen 9/10 1905 days true 4.67 4%
Barbara 10/10 1919 days true 4.65 4%
Marinette 8/10 1919 days true 4.65 4%
Luca Scheuemeier 10/10 1919 days true 4.65 4%
Kristina 8/10 1950 days true 4.59 4%
Volker 8/10 1950 days true 4.59 4%
jonas meier 9/10 1971 days true 4.56 4%
Romina Bolz 8/10 1971 days true 4.56 4%
Paul Balfour 8/10 1976 days true 4.55 4%
Eric and Nienke 9/10 1997 days 3.76 3%
Julie Hatch 10/10 2058 days 3.68 3%
Rampon 9/10 2259 days true 4.09 4%
Debiesse 10/10 2260 days true 4.08 4%
Hendrik Rother 10/10 2263 days true 4.08 4%
Claire 8/10 2272 days true 4.07 4%
Jana Simcikova 10/10 2274 days true 4.06 4%
Fabian Koitka 9/10 2292 days true 4.03 4%
Michal Maly 8/10 2298 days true 4.02 4%
JohnHyde 10/10 2331 days 3.31 3%
Aurelie Morin 7/10 2353 days true 3.93 3%
Natalie Nubler 10/10 2354 days true 3.93 3%
Anne Sutkowi 7/10 2362 days 3.26 3%
Sasha and Sandra Bonavia 9/10 2362 days true 3.92 3%
Erik Funk 9/10 2369 days true 3.91 3%
Harald Prinz 8/10 2373 days true 3.9 3%
James Darren Tennant 10/10 2374 days true 3.9 3%
scoopy 10/10 2606 days 2.93 2%
Goran Backlund 9/10 2622 days true 3.49 3%
Tinne Cis 6/10 2634 days true 3.47 3%
Richard and Janet 10/10 2640 days true 3.46 3%
Michael Jefferies 10/10 2640 days true 3.46 3%
Harald 10/10 2646 days true 3.45 3%
Anne King 9/10 2646 days true 3.45 3%
Matt Kelley 9/10 2646 days true 3.45 3%
Lotte Zwail 9/10 2646 days true 3.45 3%
Hannah Bean 8/10 2648 days true 3.45 3%
Mike & Jennie 9/10 2648 days true 3.45 3%
Mike & Mandy 8/10 2648 days true 3.45 3%
pamr 8/10 2650 days true 3.44 3%
Villa 9/10 2651 days true 3.44 3%
Richard Spandonk 8/10 2654 days true 3.44 3%
Franziska & Katrin 10/10 2658 days true 3.43 3%
Clemens 10/10 2659 days true 3.43 3%
Devon Urlacher 8/10 2660 days true 3.43 3%
Thomas Krause 8/10 2660 days true 3.43 3%
Lilja Bjork Hermannsdottir 7/10 2665 days true 3.42 3%
Remy van Heugten 8/10 2665 days true 3.42 3%
Keith_W 10/10 2666 days 2.85 2%
Annika 10/10 2666 days 2.85 2%
ToGy 8/10 2666 days 2.85 2%
Alfred & Henrike 10/10 2691 days true 3.38 3%
Barbsldh 10/10 2697 days 2.81 2%
Deirdre Hayes 8/10 2734 days true 3.31 3%
Cornelia & Josef 9/10 2740 days true 3.3 3%
Fran & Roger 10/10 2745 days true 3.29 3%
Mark Bakker 8/10 2745 days true 3.29 3%
Gert 9/10 2758 days 2.72 2%
katel86 10/10 2819 days 2.64 2%
Martin Potter 9/10 2970 days true 2.92 2%
Anezka Hlavacova 9/10 2986 days true 2.89 2%
Dave Jones 9/10 2987 days true 2.89 2%
Rolf 8/10 2994 days true 2.88 2%
Wouter Moui 9/10 2995 days true 2.88 2%
Canada 10/10 2995 days true 2.88 2%
Michael Long 10/10 2996 days true 2.88 2%
Beat & Connie 10/10 2997 days true 2.87 2%
Jacob Nube 9/10 2999 days true 2.87 2%
Andy Cameron-Daniels 10/10 3001 days true 2.87 2%
khs 9/10 3003 days 2.39 2%
Ann Parry 10/10 3007 days true 2.86 2%
Adam Hayley 7/10 3015 days true 2.84 2%
Katie Nicol 10/10 3016 days true 2.84 2%
Darren Bruestle 9/10 3018 days true 2.84 2%
Tom 9/10 3021 days true 2.83 2%
Russell Stevens 8/10 3021 days true 2.83 2%
Philipp Rau 9/10 3022 days true 2.83 2%
Luc Marchand 10/10 3023 days true 2.83 2%
Julia 10/10 3023 days true 2.83 2%
Leslie Aldridge 10/10 3024 days true 2.83 2%
Jorgen vahl Rasmussen 9/10 3024 days true 2.83 2%
pjfranke 10/10 3031 days 2.35 2%
Beate Godsk 9/10 3031 days true 2.82 2%
Bunthorne 10/10 3062 days 2.31 2%
emthekiwi 10/10 3154 days 2.18 2%
Demmers 10/10 3246 days 2.05 2%
Phineas Smith-Fox 9/10 3304 days true 2.37 2%
wilsoneng 10/10 3337 days true 2.31 2%
Maria 9/10 3337 days true 2.31 2%
Tim Smith 10/10 3359 days true 2.28 2%
BenH 10/10 3368 days 1.89 1%
Flora 10/10 3370 days true 2.26 2%
Vera Van Schie 10/10 3376 days true 2.25 2%
Thomas K 9/10 3377 days true 2.25 2%
Jannievan Osnabrugge 10/10 3378 days true 2.25 2%
Helen B 9/10 3378 days true 2.25 2%
Ferth 10/10 3382 days true 2.24 2%
Roos 9/10 3382 days true 2.24 2%
Klass 9/10 3382 days true 2.24 2%
Hannah Clark 10/10 3389 days true 2.23 2%
Ingrid Overes 10/10 3395 days true 2.22 2%
Tracey Buschl 10/10 3396 days 1.85 1%
Mitchell Mapletree 10/10 3412 days true 2.19 2%
Maki 10/10 3427 days 1.81 1%
nigelwaterhouse 9/10 3427 days 1.81 1%
Ed 10/10 3427 days 1.81 1%
Dogmatix 10/10 3427 days 1.81 1%
sophiep 9/10 3442 days true 2.14 2%
biene 10/10 3442 days true 2.14 2%
Susann Koschmeider 10/10 3462 days true 2.11 2%
Karen Raven 8/10 3465 days true 2.1 2%
Eimear Doyle 10/10 3470 days true 2.1 2%
Ton Buil 9/10 3470 days true 2.1 2%
amzbellz 10/10 3519 days 1.68 1%
Kurt Smudzinski 10/10 3549 days 1.64 1%
bertel 10/10 3585 days true 1.91 1%
desl 10/10 3702 days true 1.71 1%
martinat 10/10 3702 days true 1.71 1%
Van Lent 8/10 3704 days true 1.71 1%
S Schlesinger 10/10 3707 days 1.42 1%
Andrew Smith 9/10 3708 days true 1.7 1%
BevanLisa 9/10 3719 days true 1.69 1%
Barry Smith 9/10 3722 days true 1.68 1%
Mia 10/10 3723 days true 1.68 1%
Soeren Rasmussen 10/10 3725 days 1.4 1%
eatc 10/10 3733 days 1.39 1%
A 9/10 3734 days true 1.66 1%
Charles 8/10 3735 days true 1.66 1%
Dalibor 10/10 3736 days true 1.66 1%
ChristopherD 8/10 3736 days true 1.66 1%
CarolB 10/10 3736 days true 1.66 1%
Emma Louise 9/10 3746 days true 1.64 1%
Christina 8/10 3751 days true 1.63 1%
Rachel 10/10 3752 days true 1.63 1%
AlastairP 10/10 3759 days true 1.62 1%
mike smith 10/10 3760 days 1.35 1%
Caroline 9/10 3760 days true 1.62 1%
Busson 8/10 3765 days true 1.61 1%
Hans 7/10 3767 days true 1.61 1%
Nicole 10/10 3767 days true 1.61 1%
Tanja 10/10 3767 days true 1.61 1%
Dianne 9/10 3771 days true 1.6 1%
LeaM 9/10 3772 days true 1.6 1%
AndreM 10/10 3772 days true 1.6 1%
JohannesE 7/10 3772 days true 1.6 1%
Bernd 10/10 3773 days 1.33 1%
KTinga 9/10 3774 days true 1.6 1%
Lucas 10/10 3775 days true 1.59 1%
Josefine 10/10 3775 days true 1.59 1%
alex 10/10 3775 days true 1.59 1%
Richard Rodd 10/10 3781 days 1.32 1%
rar 10/10 3781 days 1.32 1%
Melanie 10/10 3783 days true 1.58 1%
Katherine 10/10 3807 days true 1.54 1%
Claire 9/10 3815 days true 1.53 1%
Tim 10/10 3823 days true 1.52 1%
Maureen 10/10 3823 days true 1.52 1%
lming60 10/10 3828 days 1.26 1%
peter_lowles 10/10 3832 days 1.25 1%
mike brett 8/10 3837 days 1.24 1%
RhysandSteffi 10/10 3853 days 1.22 1%
Paula Semmens 9/10 3861 days 1.21 1%
StephR 10/10 3862 days 1.21 1%
Rudolf Meredith 10/10 3863 days 1.21 1%
Max 9/10 3938 days true 1.33 1%
Rhea 9/10 4010 days true 1.21 1%
annemarie_and_markus 10/10 4054 days 0.95 0%
charlotte 9/10 4075 days 0.92 0%
jahirst 10/10 4084 days 0.91 0%
Liz 9/10 4085 days true 1.08 1%
Barnie 10/10 4088 days true 1.08 1%
Christine 10/10 4088 days true 1.08 1%
Kolacny 10/10 4088 days true 1.08 1%
Mie Toft Pedersen 9/10 4098 days true 1.06 1%
Emily Houston 10/10 4099 days true 1.06 1%
Dirk 10/10 4101 days true 1.06 1%
Ian Ridgeway 10/10 4103 days true 1.06 1%
Loodle 9/10 4114 days 0.86 0%
Zurcher Marco 3/10 4129 days true 0.94 0%
Anna 10/10 4142 days true 0.99 1%
Hugh McCarthy 6/10 4149 days true 0.98 0%
Tony and Ken 10/10 4149 days true 0.98 0%
Anneli 8/10 4150 days true 0.98 0%
holly parker 10/10 4160 days 0.8 0%
Vince 10/10 4170 days 0.79 0%
Lena 10/10 4180 days true 0.93 0%
Carolr 9/10 4191 days true 0.91 0%
MarkReid 10/10 4392 days true 0.58 0%
Hazel 9/10 4426 days true 0.52 0%
Magnus 8/10 4432 days true 0.51 0%
Katie 10/10 4435 days true 0.51 0%
Heather 10/10 4439 days true 0.5 0%
Jacob Mille 10/10 4446 days true 0.49 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 Kahu Kayaks experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-0.98% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Kahu Kayaks 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 Kahu Kayaks experience has been adjusted for 49 days. Adjustments are according to the following table.

Days Adjustment
46 -0.92%
47 -0.94%
48 -0.96%
49 -0.98%
50 -1.00%
51 -1.02%
52 -1.04%

Final Ranking Score

91%

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.

Love Christchurch