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 Fox Glacier Guiding.

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

Fox Glacier Guiding

Valid Reviews

211 Valid Reviews

The Fox Glacier Guiding experience has a total of 211 valid reviews. There are no 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 211 valid reviews:

Rating Count Percentage
10/10 70
33%
9/10 52
25%
8/10 54
26%
7/10 18
9%
6/10 7
3%
5/10 3
1%
4/10 6
3%
3/10 0
0%
2/10 0
0%
1/10 1
0%

85.69% Average

The raw data average (mean) for all the Fox Glacier Guiding valid reviews is 85.69% and is based on 211 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

185 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 211 valid reviews, the experience has 185 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 185 face-to-face reviews:

Rating Count Percentage
10/10 57
31%
9/10 47
25%
8/10 51
28%
7/10 17
9%
6/10 7
4%
5/10 2
1%
4/10 4
2%
3/10 0
0%
2/10 0
0%
1/10 0
0%

85.84% Average

The raw data average (mean) for all the Fox Glacier Guiding face-to-face reviews is 85.84% and is based on 185 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

86.24%

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
Mona Uttendorf 10/10 816 days true 20.8 100%
Sebastian Braun 10/10 821 days true 20.28 97%
Tanya Davies 10/10 869 days 13.09 62%
Danielle Stam 7/10 1124 days true 5.95 27%
Carmen 10/10 1440 days true 5.43 24%
Claudia Hillebrand 4/10 1788 days true 4.58 20%
Max Backelandt 9/10 1794 days true 4.85 21%
Marie Toulemonde 10/10 1794 days true 4.85 21%
Mark 7/10 1797 days true 4.85 21%
Daniel Robledo 8/10 1816 days true 4.81 21%
Maria Camen Santos Lopez 9/10 1816 days true 4.81 21%
Mara 9/10 1817 days true 4.81 21%
Andrea Morello 7/10 1817 days true 4.81 21%
Maria = Moller Hansen 9/10 1826 days true 4.8 21%
Simon Tanguy 9/10 1834 days true 4.79 21%
Gassat 4/10 1837 days true 4.5 19%
Lena Jensen 9/10 1850 days true 4.76 21%
Jesper Andersen 9/10 1850 days true 4.76 21%
Claire Lieval 9/10 1862 days true 4.74 21%
Pioter Jurkowski 7/10 1874 days 3.93 17%
Jesse Farrell 8/10 1883 days true 4.7 20%
Philipp Haass 6/10 1883 days true 4.7 20%
Chantal 10/10 1887 days true 4.7 20%
Ken S 10/10 1905 days 3.89 16%
Ron Stenhouse 6/10 2149 days true 4.27 18%
Elizabeth Stenhouse 8/10 2149 days true 4.27 18%
Andreas Jarvel 9/10 2163 days true 4.24 18%
Pete Wilson 4/10 2166 days true 3.99 17%
Marcel 7/10 2173 days true 4.23 18%
Maria 8/10 2173 days true 4.23 18%
Clare Cannon 8/10 2190 days true 4.2 18%
Sara Omary 9/10 2190 days true 4.2 18%
S M 10/10 2208 days 3.48 14%
Alison Langley 8/10 2252 days true 4.1 17%
Liam Day 9/10 2256 days true 4.09 17%
Martyn Kool 8/10 2256 days true 4.09 17%
Michael Kretzschmar 9/10 2256 days true 4.09 17%
Marieke 9/10 2256 days true 4.09 17%
Kevin Desjandino 10/10 2257 days true 4.09 17%
Sharon Yates 10/10 2258 days true 4.09 17%
Frans Derks 8/10 2263 days true 4.08 17%
Alexandra van den Brack 8/10 2267 days true 4.07 17%
Frank and Suzanne 8/10 2270 days true 4.07 17%
Erik Funk 8/10 2277 days true 4.06 17%
tanyap 4/10 2300 days 3.11 13%
Rob Klauer 8/10 2533 days true 3.64 15%
Petr Stepanek 7/10 2537 days true 3.63 15%
Alan Brady 9/10 2542 days true 3.62 15%
sidcupjon 9/10 2545 days 3.01 12%
Robert & Bridget Holden 8/10 2554 days true 3.6 15%
Vincent & Lian 9/10 2555 days true 3.6 15%
Stam 9/10 2556 days true 3.6 15%
Tim & Judith 8/10 2557 days true 3.6 15%
Rob Gill 10/10 2558 days true 3.6 15%
Cindy & Glen Kerunsky 10/10 2561 days true 3.59 15%
R Seiferling 10/10 2566 days true 3.58 15%
Ursi Meier 9/10 2568 days true 3.58 15%
Thomas Krause 8/10 2568 days true 3.58 15%
Hugo ten Brink 8/10 2572 days true 3.57 15%
kiwifrenchy 10/10 2574 days 2.97 12%
Katja Klein 9/10 2619 days true 3.49 14%
Judith 8/10 2625 days true 3.48 14%
damaca 10/10 2666 days 2.85 11%
KarenW 10/10 2727 days 2.76 11%
neilqecosse 9/10 2727 days 2.76 11%
MeganJane_85 1/10 2850 days 2.21 8%
Marcus 9/10 2870 days true 3.08 12%
Lisa Milton 10/10 2873 days true 3.08 12%
Ken Talan 10/10 2876 days true 3.07 12%
Alita Smith 9/10 2883 days true 3.06 12%
Leroy Dimitri 10/10 2893 days true 3.04 12%
Mr & Mrs Palmer 9/10 2897 days true 3.04 12%
Sayaka 10/10 2897 days true 3.04 12%
Stoop 8/10 2897 days true 3.04 12%
Jacob 9/10 2898 days true 3.04 12%
Maike 9/10 2899 days true 3.03 12%
Kauzta 10/10 2899 days true 3.03 12%
Laura Malins 8/10 2901 days true 3.03 12%
K & J Overton 8/10 2905 days true 3.02 12%
Betten 10/10 2910 days true 3.02 12%
taniadeanryanbrittany 8/10 2911 days 2.51 10%
Nicolas 7/10 2912 days true 3.01 12%
Lenore Dejong 9/10 2913 days true 3.01 12%
Manu & Gabi 10/10 2916 days true 3.01 12%
Laura Hayes 10/10 2926 days true 2.99 12%
Maite Severins 7/10 2930 days true 2.98 12%
Helen Keighley 10/10 2931 days true 2.98 12%
Ryan Tull 10/10 2934 days true 2.98 12%
Calvin Parsons 8/10 2939 days true 2.97 12%
Christian Foerster 7/10 2939 days true 2.97 12%
Kristie 10/10 2962 days true 2.93 12%
elpo 9/10 3184 days 2.14 8%
Baumgarten 8/10 3212 days true 2.52 10%
Stephen M 7/10 3257 days true 2.45 9%
Corine van Been 8/10 3258 days true 2.44 9%
s_butler 10/10 3264 days true 2.43 9%
Benedict Fluthman 6/10 3266 days true 2.43 9%
Peter Schmidt 5/10 3276 days 2.01 7%
Nicky and Andy Prescott 10/10 3278 days true 2.41 9%
Jackie 9/10 3295 days true 2.38 9%
Vincente Garrido 8/10 3299 days true 2.38 9%
Keith Wilde 10/10 3299 days true 2.38 9%
Ian E 8/10 3300 days true 2.38 9%
kate 5/10 3301 days true 2.37 9%
Rob 8/10 3302 days true 2.37 9%
emily walters 10/10 3304 days 1.97 7%
Peter Ortner 9/10 3313 days true 2.35 9%
Nigel Armstrong 10/10 3315 days true 2.35 9%
Grainne Ahern 4/10 3335 days 1.8 6%
Chidlebyte 10/10 3335 days 1.93 7%
gabei 7/10 3350 days true 2.29 8%
mariak 7/10 3352 days true 2.29 8%
marijad 10/10 3354 days true 2.29 8%
Paul Nugent 8/10 3366 days 1.89 6%
Misha 10/10 3366 days 1.89 6%
Alan Riley 8/10 3378 days true 2.25 8%
Ann Riley 8/10 3378 days true 2.25 8%
Eimear Doyle 9/10 3378 days true 2.25 8%
MV Vroenhoven 10/10 3381 days true 2.24 8%
Sara Reekmans 9/10 3389 days true 2.23 8%
Emily and Alex 9/10 3393 days true 2.22 8%
neilchelt 10/10 3396 days 1.85 6%
jank 10/10 3457 days true 2.12 8%
alanvn 9/10 3479 days true 2.08 7%
bogaard 10/10 3492 days true 2.06 7%
lorah 10/10 3500 days true 2.05 7%
joevw 9/10 3565 days true 1.94 7%
OliverG1 8/10 3598 days true 1.89 6%
Tim_P 6/10 3607 days true 1.87 6%
Nathalie 8/10 3607 days true 1.87 6%
Sofie 9/10 3610 days 1.55 5%
ElissaH 10/10 3612 days true 1.86 6%
KjellR 9/10 3612 days true 1.86 6%
BonnieH 9/10 3612 days true 1.86 6%
CharityW 8/10 3612 days true 1.86 6%
Paul 10/10 3613 days true 1.86 6%
eskim1018 9/10 3621 days 1.54 5%
ChrisD 10/10 3626 days true 1.84 6%
Christian Moll 9/10 3626 days true 1.84 6%
david 10/10 3626 days true 1.84 6%
Doll 10/10 3633 days true 1.83 6%
A 10/10 3641 days true 1.81 6%
Tolsten 10/10 3641 days true 1.81 6%
GaryW 8/10 3645 days true 1.81 6%
ElizabethF 9/10 3645 days true 1.81 6%
Claudia 4/10 3646 days true 1.7 6%
Jason 7/10 3649 days true 1.8 6%
John 8/10 3651 days true 1.8 6%
Hans 8/10 3658 days true 1.79 6%
Carly 7/10 3660 days true 1.78 6%
Jeffrey C 10/10 3669 days 1.47 4%
SueB 10/10 3669 days true 1.77 6%
Dalit 10/10 3676 days true 1.76 6%
Jon 10/10 3681 days true 1.75 6%
Kathrin 9/10 3683 days true 1.75 6%
Oliver 8/10 3684 days true 1.74 6%
Patrick 8/10 3686 days true 1.74 6%
Andrew 8/10 3686 days true 1.74 6%
Graham 6/10 3695 days true 1.73 6%
Maria 10/10 3722 days true 1.68 5%
Jordi 6/10 3730 days true 1.67 5%
nicole 10/10 3732 days 1.39 4%
Rowan 9/10 3755 days true 1.63 5%
abby 9/10 3766 days true 1.61 5%
Andrew 9/10 3777 days true 1.59 5%
Anna 10/10 3807 days true 1.54 5%
Atsuko 8/10 3816 days true 1.53 5%
Trina 10/10 3834 days true 1.5 5%
Terri Scott 10/10 3845 days true 1.48 4%
Brian 10/10 3858 days true 1.46 4%
Wolfgang 8/10 3882 days true 1.42 4%
Gorka Rojas 9/10 3882 days true 1.42 4%
Ashlee Roberts 10/10 3907 days 1.15 3%
Corin Kraft 10/10 3952 days true 1.3 4%
Anke 9/10 3960 days true 1.29 4%
Olga 7/10 3976 days true 1.26 3%
Ben 8/10 3981 days true 1.26 3%
Chris 7/10 3987 days true 1.25 3%
Elizabeth Woodruff 5/10 3990 days true 1.24 3%
Sandra Verbaarschot 10/10 3990 days true 1.24 3%
Denise 10/10 3993 days true 1.24 3%
Lisa Jones 10/10 3997 days true 1.23 3%
Richard Anthony 8/10 3997 days true 1.23 3%
Renske Tehurne 8/10 4001 days true 1.22 3%
Robert 10/10 4002 days true 1.22 3%
Elise 10/10 4002 days true 1.22 3%
Fung 10/10 4002 days true 1.22 3%
Omri Hasson 9/10 4007 days true 1.21 3%
Aharon 10/10 4008 days true 1.21 3%
Sue 8/10 4014 days true 1.2 3%
Ondrej Kacena 8/10 4021 days true 1.19 3%
Laurie 8/10 4021 days true 1.19 3%
Eric P 10/10 4029 days true 1.18 3%
Alex 8/10 4038 days true 1.16 3%
Natalie 10/10 4050 days true 1.14 3%
Paul Cowie 7/10 4085 days true 1.08 2%
Ard 8/10 4085 days true 1.08 2%
Gabriel Faber 8/10 4085 days true 1.08 2%
Michael 8/10 4095 days true 1.07 2%
purplekat99 8/10 4097 days 0.89 2%
Wendy Williams 9/10 4102 days true 1.06 2%
MrsWesley 6/10 4337 days true 0.67 0%
John 7/10 4343 days true 0.66 0%
Heike 9/10 4350 days true 0.65 0%
Colin Sinclair 10/10 4351 days true 0.65 0%
Angela Shearer 8/10 4351 days true 0.65 0%
Loic 9/10 4375 days true 0.61 0%
Reggie 9/10 4376 days true 0.61 0%
FluerBlum 8/10 4388 days true 0.59 0%
Hermann 10/10 4389 days true 0.59 0%
Franz-Josef 9/10 4392 days true 0.58 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 Fox Glacier Guiding 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 Fox Glacier Guiding 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 Fox Glacier Guiding 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

79%

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.