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

87.92%

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 10/10 550 days true 62.48 100%
Sebastian Braun 10/10 555 days true 61.45 98%
Tanya Davies 10/10 603 days 43.36 69%
Danielle Stam 7/10 858 days true 16.68 25%
Carmen 10/10 1174 days true 5.87 8%
Claudia Hillebrand 4/10 1522 days true 4.99 6%
Max Backelandt 9/10 1528 days true 5.29 7%
Marie Toulemonde 10/10 1528 days true 5.29 7%
Mark 7/10 1531 days true 5.28 7%
Daniel Robledo 8/10 1550 days true 5.25 7%
Maria Camen Santos Lopez 9/10 1550 days true 5.25 7%
Mara 9/10 1551 days true 5.25 7%
Andrea Morello 7/10 1551 days true 5.25 7%
Maria = Moller Hansen 9/10 1560 days true 5.24 7%
Simon Tanguy 9/10 1568 days true 5.22 7%
Gassat 4/10 1571 days true 4.91 6%
Lena Jensen 9/10 1584 days true 5.2 7%
Jesper Andersen 9/10 1584 days true 5.2 7%
Claire Lieval 9/10 1596 days true 5.18 7%
Pioter Jurkowski 7/10 1608 days 4.3 5%
Jesse Farrell 8/10 1617 days true 5.14 7%
Philipp Haass 6/10 1617 days true 5.14 7%
Chantal 10/10 1621 days true 5.14 7%
Ken S 10/10 1639 days 4.25 5%
Ron Stenhouse 6/10 1883 days true 4.7 6%
Elizabeth Stenhouse 8/10 1883 days true 4.7 6%
Andreas Jarvel 9/10 1897 days true 4.68 6%
Pete Wilson 4/10 1900 days true 4.4 6%
Marcel 7/10 1907 days true 4.67 6%
Maria 8/10 1907 days true 4.67 6%
Clare Cannon 8/10 1924 days true 4.64 6%
Sara Omary 9/10 1924 days true 4.64 6%
S M 10/10 1942 days 3.84 5%
Alison Langley 8/10 1986 days true 4.54 6%
Liam Day 9/10 1990 days true 4.53 6%
Martyn Kool 8/10 1990 days true 4.53 6%
Michael Kretzschmar 9/10 1990 days true 4.53 6%
Marieke 9/10 1990 days true 4.53 6%
Kevin Desjandino 10/10 1991 days true 4.53 6%
Sharon Yates 10/10 1992 days true 4.53 6%
Frans Derks 8/10 1997 days true 4.52 6%
Alexandra van den Brack 8/10 2001 days true 4.51 6%
Frank and Suzanne 8/10 2004 days true 4.51 6%
Erik Funk 8/10 2011 days true 4.49 6%
tanyap 4/10 2034 days 3.45 4%
Rob Klauer 8/10 2267 days true 4.07 5%
Petr Stepanek 7/10 2271 days true 4.07 5%
Alan Brady 9/10 2276 days true 4.06 5%
sidcupjon 9/10 2279 days 3.38 4%
Robert & Bridget Holden 8/10 2288 days true 4.04 5%
Vincent & Lian 9/10 2289 days true 4.04 5%
Stam 9/10 2290 days true 4.04 5%
Tim & Judith 8/10 2291 days true 4.03 5%
Rob Gill 10/10 2292 days true 4.03 5%
Cindy & Glen Kerunsky 10/10 2295 days true 4.03 5%
R Seiferling 10/10 2300 days true 4.02 5%
Ursi Meier 9/10 2302 days true 4.02 5%
Thomas Krause 8/10 2302 days true 4.02 5%
Hugo ten Brink 8/10 2306 days true 4.01 5%
kiwifrenchy 10/10 2308 days 3.34 4%
Katja Klein 9/10 2353 days true 3.93 5%
Judith 8/10 2359 days true 3.92 5%
damaca 10/10 2400 days 3.21 4%
KarenW 10/10 2460 days 3.13 3%
neilqecosse 9/10 2460 days 3.13 3%
MeganJane_85 1/10 2583 days 2.52 2%
Marcus 9/10 2603 days true 3.52 4%
Lisa Milton 10/10 2606 days true 3.52 4%
Ken Talan 10/10 2609 days true 3.51 4%
Alita Smith 9/10 2617 days true 3.5 4%
Leroy Dimitri 10/10 2627 days true 3.48 4%
Mr & Mrs Palmer 9/10 2631 days true 3.48 4%
Sayaka 10/10 2631 days true 3.48 4%
Stoop 8/10 2631 days true 3.48 4%
Jacob 9/10 2632 days true 3.47 4%
Maike 9/10 2633 days true 3.47 4%
Kauzta 10/10 2633 days true 3.47 4%
Laura Malins 8/10 2635 days true 3.47 4%
K & J Overton 8/10 2639 days true 3.46 4%
Betten 10/10 2644 days true 3.45 4%
taniadeanryanbrittany 8/10 2645 days 2.88 3%
Nicolas 7/10 2646 days true 3.45 4%
Lenore Dejong 9/10 2647 days true 3.45 4%
Manu & Gabi 10/10 2650 days true 3.44 4%
Laura Hayes 10/10 2660 days true 3.43 4%
Maite Severins 7/10 2664 days true 3.42 4%
Helen Keighley 10/10 2665 days true 3.42 4%
Ryan Tull 10/10 2668 days true 3.41 4%
Calvin Parsons 8/10 2673 days true 3.41 4%
Christian Foerster 7/10 2673 days true 3.41 4%
Kristie 10/10 2696 days true 3.37 4%
elpo 9/10 2917 days 2.5 2%
Baumgarten 8/10 2945 days true 2.96 3%
Stephen M 7/10 2991 days true 2.88 3%
Corine van Been 8/10 2992 days true 2.88 3%
s_butler 10/10 2998 days true 2.87 3%
Benedict Fluthman 6/10 3000 days true 2.87 3%
Peter Schmidt 5/10 3010 days 2.38 2%
Nicky and Andy Prescott 10/10 3012 days true 2.85 3%
Jackie 9/10 3029 days true 2.82 3%
Vincente Garrido 8/10 3033 days true 2.81 3%
Keith Wilde 10/10 3033 days true 2.81 3%
Ian E 8/10 3034 days true 2.81 3%
kate 5/10 3035 days true 2.81 3%
Rob 8/10 3036 days true 2.81 3%
emily walters 10/10 3038 days 2.34 2%
Peter Ortner 9/10 3047 days true 2.79 3%
Nigel Armstrong 10/10 3049 days true 2.79 3%
Grainne Ahern 4/10 3069 days 2.14 2%
Chidlebyte 10/10 3069 days 2.3 2%
gabei 7/10 3084 days true 2.73 3%
mariak 7/10 3086 days true 2.73 3%
marijad 10/10 3088 days true 2.72 3%
Paul Nugent 8/10 3100 days 2.25 2%
Misha 10/10 3100 days 2.25 2%
Alan Riley 8/10 3112 days true 2.68 3%
Ann Riley 8/10 3112 days true 2.68 3%
Eimear Doyle 9/10 3112 days true 2.68 3%
MV Vroenhoven 10/10 3115 days true 2.68 3%
Sara Reekmans 9/10 3123 days true 2.67 3%
Emily and Alex 9/10 3127 days true 2.66 3%
neilchelt 10/10 3130 days 2.21 2%
jank 10/10 3190 days true 2.56 3%
alanvn 9/10 3212 days true 2.52 2%
bogaard 10/10 3225 days true 2.5 2%
lorah 10/10 3233 days true 2.49 2%
joevw 9/10 3298 days true 2.38 2%
OliverG1 8/10 3331 days true 2.32 2%
Tim_P 6/10 3341 days true 2.31 2%
Nathalie 8/10 3341 days true 2.31 2%
Sofie 9/10 3344 days 1.92 1%
ElissaH 10/10 3346 days true 2.3 2%
KjellR 9/10 3346 days true 2.3 2%
BonnieH 9/10 3346 days true 2.3 2%
CharityW 8/10 3346 days true 2.3 2%
Paul 10/10 3347 days true 2.3 2%
eskim1018 9/10 3355 days 1.9 1%
ChrisD 10/10 3360 days true 2.28 2%
Christian Moll 9/10 3360 days true 2.28 2%
david 10/10 3360 days true 2.28 2%
Doll 10/10 3367 days true 2.27 2%
A 10/10 3375 days true 2.25 2%
Tolsten 10/10 3375 days true 2.25 2%
GaryW 8/10 3379 days true 2.25 2%
ElizabethF 9/10 3379 days true 2.25 2%
Claudia 4/10 3380 days true 2.11 2%
Jason 7/10 3383 days true 2.24 2%
John 8/10 3385 days true 2.24 2%
Hans 8/10 3392 days true 2.22 2%
Carly 7/10 3394 days true 2.22 2%
Jeffrey C 10/10 3403 days 1.84 1%
SueB 10/10 3403 days true 2.21 2%
Dalit 10/10 3410 days true 2.19 2%
Jon 10/10 3415 days true 2.19 2%
Kathrin 9/10 3417 days true 2.18 2%
Oliver 8/10 3418 days true 2.18 2%
Patrick 8/10 3420 days true 2.18 2%
Andrew 8/10 3420 days true 2.18 2%
Graham 6/10 3429 days true 2.16 2%
Maria 10/10 3456 days true 2.12 2%
Jordi 6/10 3464 days true 2.11 2%
nicole 10/10 3466 days 1.75 1%
Rowan 9/10 3489 days true 2.06 2%
abby 9/10 3500 days true 2.05 2%
Andrew 9/10 3511 days true 2.03 2%
Anna 10/10 3541 days true 1.98 2%
Atsuko 8/10 3550 days true 1.96 2%
Trina 10/10 3568 days true 1.93 1%
Terri Scott 10/10 3579 days true 1.92 1%
Brian 10/10 3592 days true 1.9 1%
Wolfgang 8/10 3616 days true 1.86 1%
Gorka Rojas 9/10 3616 days true 1.86 1%
Ashlee Roberts 10/10 3641 days 1.51 1%
Corin Kraft 10/10 3685 days true 1.74 1%
Anke 9/10 3693 days true 1.73 1%
Olga 7/10 3710 days true 1.7 1%
Ben 8/10 3715 days true 1.69 1%
Chris 7/10 3721 days true 1.68 1%
Elizabeth Woodruff 5/10 3724 days true 1.68 1%
Sandra Verbaarschot 10/10 3724 days true 1.68 1%
Denise 10/10 3727 days true 1.67 1%
Lisa Jones 10/10 3731 days true 1.67 1%
Richard Anthony 8/10 3731 days true 1.67 1%
Renske Tehurne 8/10 3735 days true 1.66 1%
Robert 10/10 3736 days true 1.66 1%
Elise 10/10 3736 days true 1.66 1%
Fung 10/10 3736 days true 1.66 1%
Omri Hasson 9/10 3741 days true 1.65 1%
Aharon 10/10 3742 days true 1.65 1%
Sue 8/10 3748 days true 1.64 1%
Ondrej Kacena 8/10 3755 days true 1.63 1%
Laurie 8/10 3755 days true 1.63 1%
Eric P 10/10 3763 days true 1.61 1%
Alex 8/10 3772 days true 1.6 1%
Natalie 10/10 3784 days true 1.58 1%
Paul Cowie 7/10 3819 days true 1.52 1%
Ard 8/10 3819 days true 1.52 1%
Gabriel Faber 8/10 3819 days true 1.52 1%
Michael 8/10 3829 days true 1.51 1%
purplekat99 8/10 3831 days 1.25 0%
Wendy Williams 9/10 3836 days true 1.49 1%
MrsWesley 6/10 4070 days true 1.11 0%
John 7/10 4076 days true 1.1 0%
Heike 9/10 4083 days true 1.09 0%
Colin Sinclair 10/10 4084 days true 1.09 0%
Angela Shearer 8/10 4084 days true 1.09 0%
Loic 9/10 4109 days true 1.05 0%
Reggie 9/10 4110 days true 1.04 0%
FluerBlum 8/10 4122 days true 1.02 0%
Hermann 10/10 4123 days true 1.02 0%
Franz-Josef 9/10 4126 days true 1.02 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

81%

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.