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

87.43%

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 10/10 633 days true 46.59 100%
Sebastian Braun 10/10 638 days true 45.71 98%
Tanya Davies 10/10 686 days 31.51 67%
Danielle Stam 7/10 941 days true 10.51 21%
Carmen 10/10 1257 days true 5.73 11%
Claudia Hillebrand 4/10 1605 days true 4.86 9%
Max Backelandt 9/10 1611 days true 5.15 9%
Marie Toulemonde 10/10 1611 days true 5.15 9%
Mark 7/10 1614 days true 5.15 9%
Daniel Robledo 8/10 1633 days true 5.12 9%
Maria Camen Santos Lopez 9/10 1633 days true 5.12 9%
Mara 9/10 1634 days true 5.11 9%
Andrea Morello 7/10 1634 days true 5.11 9%
Maria = Moller Hansen 9/10 1643 days true 5.1 9%
Simon Tanguy 9/10 1651 days true 5.09 9%
Gassat 4/10 1654 days true 4.78 9%
Lena Jensen 9/10 1667 days true 5.06 9%
Jesper Andersen 9/10 1667 days true 5.06 9%
Claire Lieval 9/10 1679 days true 5.04 9%
Pioter Jurkowski 7/10 1691 days 4.18 7%
Jesse Farrell 8/10 1700 days true 5.01 9%
Philipp Haass 6/10 1700 days true 5.01 9%
Chantal 10/10 1704 days true 5.0 9%
Ken S 10/10 1722 days 4.14 7%
Ron Stenhouse 6/10 1966 days true 4.57 8%
Elizabeth Stenhouse 8/10 1966 days true 4.57 8%
Andreas Jarvel 9/10 1980 days true 4.55 8%
Pete Wilson 4/10 1983 days true 4.28 7%
Marcel 7/10 1990 days true 4.53 8%
Maria 8/10 1990 days true 4.53 8%
Clare Cannon 8/10 2007 days true 4.5 8%
Sara Omary 9/10 2007 days true 4.5 8%
S M 10/10 2025 days 3.73 6%
Alison Langley 8/10 2069 days true 4.4 8%
Liam Day 9/10 2073 days true 4.39 8%
Martyn Kool 8/10 2073 days true 4.39 8%
Michael Kretzschmar 9/10 2073 days true 4.39 8%
Marieke 9/10 2073 days true 4.39 8%
Kevin Desjandino 10/10 2074 days true 4.39 8%
Sharon Yates 10/10 2075 days true 4.39 8%
Frans Derks 8/10 2080 days true 4.38 8%
Alexandra van den Brack 8/10 2084 days true 4.37 8%
Frank and Suzanne 8/10 2087 days true 4.37 8%
Erik Funk 8/10 2094 days true 4.36 8%
tanyap 4/10 2117 days 3.35 5%
Rob Klauer 8/10 2350 days true 3.94 7%
Petr Stepanek 7/10 2354 days true 3.93 7%
Alan Brady 9/10 2359 days true 3.92 7%
sidcupjon 9/10 2362 days 3.26 5%
Robert & Bridget Holden 8/10 2371 days true 3.9 7%
Vincent & Lian 9/10 2372 days true 3.9 7%
Stam 9/10 2373 days true 3.9 7%
Tim & Judith 8/10 2374 days true 3.9 7%
Rob Gill 10/10 2375 days true 3.9 7%
Cindy & Glen Kerunsky 10/10 2378 days true 3.89 7%
R Seiferling 10/10 2383 days true 3.88 7%
Ursi Meier 9/10 2385 days true 3.88 7%
Thomas Krause 8/10 2385 days true 3.88 7%
Hugo ten Brink 8/10 2389 days true 3.87 7%
kiwifrenchy 10/10 2391 days 3.22 5%
Katja Klein 9/10 2436 days true 3.8 6%
Judith 8/10 2442 days true 3.79 6%
damaca 10/10 2483 days 3.1 5%
KarenW 10/10 2544 days 3.02 5%
neilqecosse 9/10 2544 days 3.02 5%
MeganJane_85 1/10 2667 days 2.42 3%
Marcus 9/10 2687 days true 3.38 5%
Lisa Milton 10/10 2690 days true 3.38 5%
Ken Talan 10/10 2693 days true 3.37 5%
Alita Smith 9/10 2700 days true 3.36 5%
Leroy Dimitri 10/10 2710 days true 3.35 5%
Mr & Mrs Palmer 9/10 2714 days true 3.34 5%
Sayaka 10/10 2714 days true 3.34 5%
Stoop 8/10 2714 days true 3.34 5%
Jacob 9/10 2715 days true 3.34 5%
Maike 9/10 2716 days true 3.34 5%
Kauzta 10/10 2716 days true 3.34 5%
Laura Malins 8/10 2718 days true 3.33 5%
K & J Overton 8/10 2722 days true 3.33 5%
Betten 10/10 2727 days true 3.32 5%
taniadeanryanbrittany 8/10 2728 days 2.76 4%
Nicolas 7/10 2729 days true 3.31 5%
Lenore Dejong 9/10 2730 days true 3.31 5%
Manu & Gabi 10/10 2733 days true 3.31 5%
Laura Hayes 10/10 2743 days true 3.29 5%
Maite Severins 7/10 2747 days true 3.28 5%
Helen Keighley 10/10 2748 days true 3.28 5%
Ryan Tull 10/10 2751 days true 3.28 5%
Calvin Parsons 8/10 2756 days true 3.27 5%
Christian Foerster 7/10 2756 days true 3.27 5%
Kristie 10/10 2779 days true 3.23 5%
elpo 9/10 3001 days 2.39 3%
Baumgarten 8/10 3029 days true 2.82 4%
Stephen M 7/10 3074 days true 2.75 4%
Corine van Been 8/10 3075 days true 2.75 4%
s_butler 10/10 3081 days true 2.74 4%
Benedict Fluthman 6/10 3083 days true 2.73 4%
Peter Schmidt 5/10 3093 days 2.26 3%
Nicky and Andy Prescott 10/10 3095 days true 2.71 4%
Jackie 9/10 3112 days true 2.68 4%
Vincente Garrido 8/10 3116 days true 2.68 4%
Keith Wilde 10/10 3116 days true 2.68 4%
Ian E 8/10 3117 days true 2.68 4%
kate 5/10 3118 days true 2.67 4%
Rob 8/10 3119 days true 2.67 4%
emily walters 10/10 3121 days 2.22 3%
Peter Ortner 9/10 3130 days true 2.65 4%
Nigel Armstrong 10/10 3132 days true 2.65 4%
Grainne Ahern 4/10 3152 days 2.03 3%
Chidlebyte 10/10 3152 days 2.18 3%
gabei 7/10 3167 days true 2.59 4%
mariak 7/10 3169 days true 2.59 4%
marijad 10/10 3171 days true 2.59 4%
Paul Nugent 8/10 3183 days 2.14 3%
Misha 10/10 3183 days 2.14 3%
Alan Riley 8/10 3195 days true 2.55 4%
Ann Riley 8/10 3195 days true 2.55 4%
Eimear Doyle 9/10 3195 days true 2.55 4%
MV Vroenhoven 10/10 3198 days true 2.54 4%
Sara Reekmans 9/10 3206 days true 2.53 4%
Emily and Alex 9/10 3210 days true 2.52 4%
neilchelt 10/10 3213 days 2.1 3%
jank 10/10 3274 days true 2.42 3%
alanvn 9/10 3296 days true 2.38 3%
bogaard 10/10 3309 days true 2.36 3%
lorah 10/10 3317 days true 2.35 3%
joevw 9/10 3382 days true 2.24 3%
OliverG1 8/10 3415 days true 2.19 3%
Tim_P 6/10 3424 days true 2.17 3%
Nathalie 8/10 3424 days true 2.17 3%
Sofie 9/10 3427 days 1.81 2%
ElissaH 10/10 3429 days true 2.16 3%
KjellR 9/10 3429 days true 2.16 3%
BonnieH 9/10 3429 days true 2.16 3%
CharityW 8/10 3429 days true 2.16 3%
Paul 10/10 3430 days true 2.16 3%
eskim1018 9/10 3438 days 1.79 2%
ChrisD 10/10 3443 days true 2.14 3%
Christian Moll 9/10 3443 days true 2.14 3%
david 10/10 3443 days true 2.14 3%
Doll 10/10 3450 days true 2.13 3%
A 10/10 3458 days true 2.12 3%
Tolsten 10/10 3458 days true 2.12 3%
GaryW 8/10 3462 days true 2.11 3%
ElizabethF 9/10 3462 days true 2.11 3%
Claudia 4/10 3463 days true 1.98 2%
Jason 7/10 3466 days true 2.1 3%
John 8/10 3468 days true 2.1 3%
Hans 8/10 3475 days true 2.09 3%
Carly 7/10 3477 days true 2.08 3%
Jeffrey C 10/10 3486 days 1.72 2%
SueB 10/10 3486 days true 2.07 3%
Dalit 10/10 3493 days true 2.06 3%
Jon 10/10 3498 days true 2.05 3%
Kathrin 9/10 3500 days true 2.05 3%
Oliver 8/10 3501 days true 2.04 3%
Patrick 8/10 3503 days true 2.04 3%
Andrew 8/10 3503 days true 2.04 3%
Graham 6/10 3512 days true 2.03 3%
Maria 10/10 3539 days true 1.98 2%
Jordi 6/10 3547 days true 1.97 2%
nicole 10/10 3549 days 1.64 2%
Rowan 9/10 3572 days true 1.93 2%
abby 9/10 3584 days true 1.91 2%
Andrew 9/10 3594 days true 1.89 2%
Anna 10/10 3624 days true 1.84 2%
Atsuko 8/10 3633 days true 1.83 2%
Trina 10/10 3651 days true 1.8 2%
Terri Scott 10/10 3662 days true 1.78 2%
Brian 10/10 3675 days true 1.76 2%
Wolfgang 8/10 3699 days true 1.72 2%
Gorka Rojas 9/10 3699 days true 1.72 2%
Ashlee Roberts 10/10 3724 days 1.4 1%
Corin Kraft 10/10 3769 days true 1.6 2%
Anke 9/10 3777 days true 1.59 2%
Olga 7/10 3793 days true 1.56 1%
Ben 8/10 3798 days true 1.56 1%
Chris 7/10 3804 days true 1.55 1%
Elizabeth Woodruff 5/10 3807 days true 1.54 1%
Sandra Verbaarschot 10/10 3807 days true 1.54 1%
Denise 10/10 3810 days true 1.54 1%
Lisa Jones 10/10 3814 days true 1.53 1%
Richard Anthony 8/10 3814 days true 1.53 1%
Renske Tehurne 8/10 3818 days true 1.52 1%
Robert 10/10 3819 days true 1.52 1%
Elise 10/10 3819 days true 1.52 1%
Fung 10/10 3819 days true 1.52 1%
Omri Hasson 9/10 3824 days true 1.51 1%
Aharon 10/10 3825 days true 1.51 1%
Sue 8/10 3831 days true 1.5 1%
Ondrej Kacena 8/10 3838 days true 1.49 1%
Laurie 8/10 3838 days true 1.49 1%
Eric P 10/10 3846 days true 1.48 1%
Alex 8/10 3855 days true 1.46 1%
Natalie 10/10 3867 days true 1.44 1%
Paul Cowie 7/10 3902 days true 1.39 1%
Ard 8/10 3902 days true 1.39 1%
Gabriel Faber 8/10 3902 days true 1.39 1%
Michael 8/10 3912 days true 1.37 1%
purplekat99 8/10 3914 days 1.14 1%
Wendy Williams 9/10 3919 days true 1.36 1%
MrsWesley 6/10 4154 days true 0.97 0%
John 7/10 4160 days true 0.96 0%
Heike 9/10 4167 days true 0.95 0%
Colin Sinclair 10/10 4168 days true 0.95 0%
Angela Shearer 8/10 4168 days true 0.95 0%
Loic 9/10 4192 days true 0.91 0%
Reggie 9/10 4193 days true 0.91 0%
FluerBlum 8/10 4205 days true 0.89 0%
Hermann 10/10 4206 days true 0.89 0%
Franz-Josef 9/10 4209 days true 0.88 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

80%

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.