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

85.55%

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 1032 days true 5.63 100%
Sebastian Braun 10/10 1037 days true 5.53 98%
Tanya Davies 10/10 1086 days 5.01 89%
Danielle Stam 7/10 1340 days true 4.17 74%
Carmen 10/10 1656 days true 4.04 72%
Claudia Hillebrand 4/10 2004 days true 2.72 48%
Max Backelandt 9/10 2010 days true 3.43 61%
Marie Toulemonde 10/10 2010 days true 3.43 61%
Mark 7/10 2013 days true 3.12 55%
Daniel Robledo 8/10 2032 days true 3.23 57%
Maria Camen Santos Lopez 9/10 2032 days true 3.4 60%
Mara 9/10 2033 days true 3.39 60%
Andrea Morello 7/10 2033 days true 3.09 55%
Maria = Moller Hansen 9/10 2042 days true 3.38 60%
Simon Tanguy 9/10 2050 days true 3.36 60%
Gassat 4/10 2053 days true 2.65 47%
Lena Jensen 9/10 2066 days true 3.34 59%
Jesper Andersen 9/10 2066 days true 3.34 59%
Claire Lieval 9/10 2078 days true 3.32 59%
Pioter Jurkowski 7/10 2090 days 3.0 53%
Jesse Farrell 8/10 2099 days true 3.12 55%
Philipp Haass 6/10 2099 days true 2.72 48%
Chantal 10/10 2103 days true 3.27 58%
Ken S 10/10 2121 days 3.24 58%
Ron Stenhouse 6/10 2365 days true 2.35 42%
Elizabeth Stenhouse 8/10 2365 days true 2.68 48%
Andreas Jarvel 9/10 2379 days true 2.8 50%
Pete Wilson 4/10 2382 days true 2.21 39%
Marcel 7/10 2389 days true 2.53 45%
Maria 8/10 2389 days true 2.65 47%
Clare Cannon 8/10 2406 days true 2.62 46%
Sara Omary 9/10 2406 days true 2.76 49%
S M 10/10 2424 days 2.72 48%
Alison Langley 8/10 2468 days true 2.52 45%
Liam Day 9/10 2472 days true 2.64 47%
Martyn Kool 8/10 2472 days true 2.51 45%
Michael Kretzschmar 9/10 2472 days true 2.64 47%
Marieke 9/10 2472 days true 2.64 47%
Kevin Desjandino 10/10 2473 days true 2.64 47%
Sharon Yates 10/10 2474 days true 2.64 47%
Frans Derks 8/10 2479 days true 2.5 44%
Alexandra van den Brack 8/10 2483 days true 2.49 44%
Frank and Suzanne 8/10 2486 days true 2.49 44%
Erik Funk 8/10 2493 days true 2.48 44%
tanyap 4/10 2516 days 2.03 36%
Rob Klauer 8/10 2749 days true 2.06 37%
Petr Stepanek 7/10 2753 days true 1.97 35%
Alan Brady 9/10 2758 days true 2.15 38%
sidcupjon 9/10 2761 days 2.15 38%
Robert & Bridget Holden 8/10 2770 days true 2.03 36%
Vincent & Lian 9/10 2771 days true 2.13 38%
Stam 9/10 2772 days true 2.13 38%
Tim & Judith 8/10 2773 days true 2.02 36%
Rob Gill 10/10 2774 days true 2.13 38%
Cindy & Glen Kerunsky 10/10 2777 days true 2.12 38%
R Seiferling 10/10 2782 days true 2.11 38%
Ursi Meier 9/10 2784 days true 2.11 37%
Thomas Krause 8/10 2784 days true 2.0 36%
Hugo ten Brink 8/10 2788 days true 2.0 35%
kiwifrenchy 10/10 2790 days 2.1 37%
Katja Klein 9/10 2835 days true 2.02 36%
Judith 8/10 2841 days true 1.91 34%
damaca 10/10 2882 days 1.94 34%
KarenW 10/10 2943 days 1.84 33%
neilqecosse 9/10 2943 days 1.84 33%
MeganJane_85 1/10 3066 days 1.19 21%
Marcus 9/10 3086 days true 1.59 28%
Lisa Milton 10/10 3089 days true 1.59 28%
Ken Talan 10/10 3092 days true 1.58 28%
Alita Smith 9/10 3099 days true 1.57 28%
Leroy Dimitri 10/10 3109 days true 1.55 28%
Mr & Mrs Palmer 9/10 3113 days true 1.54 27%
Sayaka 10/10 3113 days true 1.54 27%
Stoop 8/10 3113 days true 1.47 26%
Jacob 9/10 3114 days true 1.54 27%
Maike 9/10 3115 days true 1.54 27%
Kauzta 10/10 3115 days true 1.54 27%
Laura Malins 8/10 3117 days true 1.46 26%
K & J Overton 8/10 3121 days true 1.45 26%
Betten 10/10 3126 days true 1.52 27%
taniadeanryanbrittany 8/10 3127 days 1.44 26%
Nicolas 7/10 3128 days true 1.38 25%
Lenore Dejong 9/10 3129 days true 1.52 27%
Manu & Gabi 10/10 3132 days true 1.51 27%
Laura Hayes 10/10 3142 days true 1.49 27%
Maite Severins 7/10 3146 days true 1.35 24%
Helen Keighley 10/10 3147 days true 1.49 26%
Ryan Tull 10/10 3150 days true 1.48 26%
Calvin Parsons 8/10 3155 days true 1.4 25%
Christian Foerster 7/10 3155 days true 1.34 24%
Kristie 10/10 3178 days true 1.43 25%
elpo 9/10 3400 days 1.05 19%
Baumgarten 8/10 3428 days true 0.95 17%
Stephen M 7/10 3473 days true 0.84 15%
Corine van Been 8/10 3474 days true 0.88 16%
s_butler 10/10 3480 days true 0.92 16%
Benedict Fluthman 6/10 3482 days true 0.76 13%
Peter Schmidt 5/10 3492 days 0.73 13%
Nicky and Andy Prescott 10/10 3494 days true 0.89 16%
Jackie 9/10 3511 days true 0.86 15%
Vincente Garrido 8/10 3515 days true 0.81 14%
Keith Wilde 10/10 3515 days true 0.86 15%
Ian E 8/10 3516 days true 0.81 14%
kate 5/10 3517 days true 0.69 12%
Rob 8/10 3518 days true 0.81 14%
emily walters 10/10 3520 days 0.85 15%
Peter Ortner 9/10 3529 days true 0.83 15%
Nigel Armstrong 10/10 3531 days true 0.83 15%
Grainne Ahern 4/10 3551 days 0.63 11%
Chidlebyte 10/10 3551 days 0.79 14%
gabei 7/10 3566 days true 0.7 12%
mariak 7/10 3568 days true 0.7 12%
marijad 10/10 3570 days true 0.76 14%
Paul Nugent 8/10 3582 days 0.7 13%
Misha 10/10 3582 days 0.74 13%
Alan Riley 8/10 3594 days true 0.68 12%
Ann Riley 8/10 3594 days true 0.68 12%
Eimear Doyle 9/10 3594 days true 0.72 13%
MV Vroenhoven 10/10 3597 days true 0.72 13%
Sara Reekmans 9/10 3605 days true 0.7 12%
Emily and Alex 9/10 3609 days true 0.7 12%
neilchelt 10/10 3612 days 0.69 12%
jank 10/10 3673 days true 0.59 10%
alanvn 9/10 3695 days true 0.55 10%
bogaard 10/10 3708 days true 0.53 9%
lorah 10/10 3716 days true 0.51 9%
joevw 9/10 3781 days true 0.4 7%
OliverG1 8/10 3814 days true 0.33 6%
Tim_P 6/10 3823 days true 0.27 5%
Nathalie 8/10 3823 days true 0.31 6%
Sofie 9/10 3826 days 0.32 6%
ElissaH 10/10 3829 days true 0.32 6%
KjellR 9/10 3829 days true 0.32 6%
BonnieH 9/10 3829 days true 0.32 6%
CharityW 8/10 3829 days true 0.3 5%
Paul 10/10 3830 days true 0.32 6%
eskim1018 9/10 3838 days 0.3 5%
ChrisD 10/10 3842 days true 0.3 5%
Christian Moll 9/10 3842 days true 0.3 5%
david 10/10 3843 days true 0.29 5%
Doll 10/10 3850 days true 0.28 5%
A 10/10 3858 days true 0.27 5%
Tolsten 10/10 3858 days true 0.27 5%
GaryW 8/10 3861 days true 0.25 4%
ElizabethF 9/10 3861 days true 0.26 5%
Claudia 4/10 3863 days true 0.21 4%
Jason 7/10 3866 days true 0.23 4%
John 8/10 3868 days true 0.24 4%
Hans 8/10 3875 days true 0.23 4%
Carly 7/10 3877 days true 0.22 4%
Jeffrey C 10/10 3885 days 0.22 4%
SueB 10/10 3885 days true 0.22 4%
Dalit 10/10 3892 days true 0.21 4%
Jon 10/10 3898 days true 0.2 4%
Kathrin 9/10 3899 days true 0.2 4%
Oliver 8/10 3901 days true 0.19 3%
Patrick 8/10 3903 days true 0.18 3%
Andrew 8/10 3903 days true 0.18 3%
Graham 6/10 3912 days true 0.15 3%
Maria 10/10 3939 days true 0.13 2%
Jordi 6/10 3947 days true 0.1 2%
nicole 10/10 3949 days 0.11 2%
Rowan 9/10 3972 days true 0.07 1%
abby 9/10 3983 days true 0.05 1%
Andrew 9/10 3994 days true 0.04 1%
Anna 10/10 4024 days true 0.0 0%
Atsuko 8/10 4033 days true 0.0 0%
Trina 10/10 4051 days true 0.0 0%
Terri Scott 10/10 4062 days true 0.0 0%
Brian 10/10 4075 days true 0.0 0%
Wolfgang 8/10 4099 days true 0.0 0%
Gorka Rojas 9/10 4099 days true 0.0 0%
Ashlee Roberts 10/10 4123 days 0.0 0%
Corin Kraft 10/10 4168 days true 0.0 0%
Anke 9/10 4176 days true 0.0 0%
Olga 7/10 4192 days true 0.0 0%
Ben 8/10 4197 days true 0.0 0%
Chris 7/10 4203 days true 0.0 0%
Elizabeth Woodruff 5/10 4206 days true 0.0 0%
Sandra Verbaarschot 10/10 4206 days true 0.0 0%
Denise 10/10 4209 days true 0.0 0%
Lisa Jones 10/10 4213 days true 0.0 0%
Richard Anthony 8/10 4213 days true 0.0 0%
Renske Tehurne 8/10 4217 days true 0.0 0%
Robert 10/10 4218 days true 0.0 0%
Elise 10/10 4218 days true 0.0 0%
Fung 10/10 4218 days true 0.0 0%
Omri Hasson 9/10 4223 days true 0.0 0%
Aharon 10/10 4224 days true 0.0 0%
Sue 8/10 4230 days true 0.0 0%
Ondrej Kacena 8/10 4237 days true 0.0 0%
Laurie 8/10 4237 days true 0.0 0%
Eric P 10/10 4245 days true 0.0 0%
Alex 8/10 4254 days true 0.0 0%
Natalie 10/10 4266 days true 0.0 0%
Paul Cowie 7/10 4301 days true 0.0 0%
Ard 8/10 4301 days true 0.0 0%
Gabriel Faber 8/10 4301 days true 0.0 0%
Michael 8/10 4311 days true 0.0 0%
purplekat99 8/10 4313 days 0.0 0%
Wendy Williams 9/10 4318 days true 0.0 0%
MrsWesley 6/10 4553 days true 0.0 0%
John 7/10 4559 days true 0.0 0%
Heike 9/10 4566 days true 0.0 0%
Colin Sinclair 10/10 4567 days true 0.0 0%
Angela Shearer 8/10 4567 days true 0.0 0%
Loic 9/10 4591 days true 0.0 0%
Reggie 9/10 4592 days true 0.0 0%
FluerBlum 8/10 4604 days true 0.0 0%
Hermann 10/10 4605 days true 0.0 0%
Franz-Josef 9/10 4608 days true 0.0 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 Fox Glacier Guiding experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.98% 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 199 days.

The Fox Glacier Guiding experience has been adjusted for 199 days. Adjustments are according to the following table.

Days Adjustment
196 -3.92%
197 -3.94%
198 -3.96%
199 -3.98%
200 -4.00%
201 -4.02%
202 -4.04%

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.