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

88.36%

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 Relative Weight
Mona Uttendorf 10/10 451 days 100%
Sebastian Braun 10/10 456 days 99%
Tanya Davies 10/10 504 days 73%
Danielle Stam 7/10 759 days 33%
Carmen 10/10 1075 days 6%
Claudia Hillebrand 4/10 1423 days 5%
Max Backelandt 9/10 1429 days 5%
Marie Toulemonde 10/10 1429 days 5%
Mark 7/10 1432 days 5%
Daniel Robledo 8/10 1451 days 5%
Maria Camen Santos Lopez 9/10 1451 days 5%
Mara 9/10 1452 days 5%
Andrea Morello 7/10 1452 days 5%
Maria = Moller Hansen 9/10 1461 days 5%
Simon Tanguy 9/10 1469 days 5%
Gassat 4/10 1472 days 5%
Lena Jensen 9/10 1485 days 5%
Jesper Andersen 9/10 1485 days 5%
Claire Lieval 9/10 1497 days 5%
Pioter Jurkowski 7/10 1509 days 4%
Jesse Farrell 8/10 1518 days 5%
Philipp Haass 6/10 1518 days 5%
Chantal 10/10 1522 days 5%
Ken S 10/10 1540 days 4%
Ron Stenhouse 6/10 1784 days 5%
Elizabeth Stenhouse 8/10 1784 days 5%
Andreas Jarvel 9/10 1798 days 5%
Pete Wilson 4/10 1801 days 4%
Marcel 7/10 1808 days 5%
Maria 8/10 1808 days 5%
Clare Cannon 8/10 1825 days 5%
Sara Omary 9/10 1825 days 5%
S M 10/10 1843 days 3%
Alison Langley 8/10 1887 days 4%
Liam Day 9/10 1891 days 4%
Martyn Kool 8/10 1891 days 4%
Michael Kretzschmar 9/10 1891 days 4%
Marieke 9/10 1891 days 4%
Kevin Desjandino 10/10 1892 days 4%
Sharon Yates 10/10 1893 days 4%
Frans Derks 8/10 1898 days 4%
Alexandra van den Brack 8/10 1902 days 4%
Frank and Suzanne 8/10 1905 days 4%
Erik Funk 8/10 1912 days 4%
tanyap 4/10 1935 days 3%
Rob Klauer 8/10 2168 days 4%
Petr Stepanek 7/10 2172 days 4%
Alan Brady 9/10 2177 days 4%
sidcupjon 9/10 2180 days 3%
Robert & Bridget Holden 8/10 2189 days 4%
Vincent & Lian 9/10 2190 days 4%
Stam 9/10 2191 days 4%
Tim & Judith 8/10 2192 days 4%
Rob Gill 10/10 2193 days 4%
Cindy & Glen Kerunsky 10/10 2196 days 4%
R Seiferling 10/10 2201 days 4%
Ursi Meier 9/10 2203 days 4%
Thomas Krause 8/10 2203 days 4%
Hugo ten Brink 8/10 2207 days 4%
kiwifrenchy 10/10 2209 days 3%
Katja Klein 9/10 2254 days 4%
Judith 8/10 2260 days 4%
damaca 10/10 2301 days 3%
KarenW 10/10 2362 days 3%
neilqecosse 9/10 2362 days 3%
MeganJane_85 1/10 2485 days 2%
Marcus 9/10 2505 days 3%
Lisa Milton 10/10 2508 days 3%
Ken Talan 10/10 2511 days 3%
Alita Smith 9/10 2518 days 3%
Leroy Dimitri 10/10 2528 days 3%
Mr & Mrs Palmer 9/10 2532 days 3%
Sayaka 10/10 2532 days 3%
Stoop 8/10 2532 days 3%
Jacob 9/10 2533 days 3%
Maike 9/10 2534 days 3%
Kauzta 10/10 2534 days 3%
Laura Malins 8/10 2536 days 3%
K & J Overton 8/10 2540 days 3%
Betten 10/10 2545 days 3%
taniadeanryanbrittany 8/10 2546 days 2%
Nicolas 7/10 2547 days 3%
Lenore Dejong 9/10 2548 days 3%
Manu & Gabi 10/10 2551 days 3%
Laura Hayes 10/10 2561 days 3%
Maite Severins 7/10 2565 days 3%
Helen Keighley 10/10 2566 days 3%
Ryan Tull 10/10 2569 days 3%
Calvin Parsons 8/10 2574 days 3%
Christian Foerster 7/10 2574 days 3%
Kristie 10/10 2597 days 3%
elpo 9/10 2819 days 2%
Baumgarten 8/10 2847 days 2%
Stephen M 7/10 2892 days 2%
Corine van Been 8/10 2893 days 2%
s_butler 10/10 2899 days 2%
Benedict Fluthman 6/10 2901 days 2%
Peter Schmidt 5/10 2911 days 2%
Nicky and Andy Prescott 10/10 2913 days 2%
Jackie 9/10 2930 days 2%
Vincente Garrido 8/10 2934 days 2%
Keith Wilde 10/10 2934 days 2%
Ian E 8/10 2935 days 2%
kate 5/10 2936 days 2%
Rob 8/10 2937 days 2%
emily walters 10/10 2939 days 2%
Peter Ortner 9/10 2948 days 2%
Nigel Armstrong 10/10 2950 days 2%
Grainne Ahern 4/10 2970 days 1%
Chidlebyte 10/10 2970 days 2%
gabei 7/10 2985 days 2%
mariak 7/10 2987 days 2%
marijad 10/10 2989 days 2%
Paul Nugent 8/10 3001 days 2%
Misha 10/10 3001 days 2%
Alan Riley 8/10 3013 days 2%
Ann Riley 8/10 3013 days 2%
Eimear Doyle 9/10 3013 days 2%
MV Vroenhoven 10/10 3016 days 2%
Sara Reekmans 9/10 3024 days 2%
Emily and Alex 9/10 3028 days 2%
neilchelt 10/10 3031 days 1%
jank 10/10 3092 days 2%
alanvn 9/10 3114 days 2%
bogaard 10/10 3127 days 2%
lorah 10/10 3135 days 2%
joevw 9/10 3200 days 2%
OliverG1 8/10 3233 days 2%
Tim_P 6/10 3242 days 2%
Nathalie 8/10 3242 days 2%
Sofie 9/10 3245 days 1%
ElissaH 10/10 3247 days 2%
KjellR 9/10 3247 days 2%
BonnieH 9/10 3247 days 2%
CharityW 8/10 3247 days 2%
Paul 10/10 3248 days 2%
eskim1018 9/10 3256 days 1%
ChrisD 10/10 3261 days 2%
Christian Moll 9/10 3261 days 2%
david 10/10 3261 days 2%
Doll 10/10 3268 days 2%
A 10/10 3276 days 2%
Tolsten 10/10 3276 days 2%
GaryW 8/10 3280 days 2%
ElizabethF 9/10 3280 days 2%
Claudia 4/10 3281 days 1%
Jason 7/10 3284 days 2%
John 8/10 3286 days 2%
Hans 8/10 3293 days 2%
Carly 7/10 3295 days 2%
Jeffrey C 10/10 3304 days 1%
SueB 10/10 3304 days 1%
Dalit 10/10 3311 days 1%
Jon 10/10 3316 days 1%
Kathrin 9/10 3318 days 1%
Oliver 8/10 3319 days 1%
Patrick 8/10 3321 days 1%
Andrew 8/10 3321 days 1%
Graham 6/10 3330 days 1%
Maria 10/10 3357 days 1%
Jordi 6/10 3365 days 1%
nicole 10/10 3367 days 1%
Rowan 9/10 3390 days 1%
abby 9/10 3402 days 1%
Andrew 9/10 3412 days 1%
Anna 10/10 3442 days 1%
Atsuko 8/10 3451 days 1%
Trina 10/10 3469 days 1%
Terri Scott 10/10 3480 days 1%
Brian 10/10 3493 days 1%
Wolfgang 8/10 3517 days 1%
Gorka Rojas 9/10 3517 days 1%
Ashlee Roberts 10/10 3542 days 1%
Corin Kraft 10/10 3587 days 1%
Anke 9/10 3595 days 1%
Olga 7/10 3611 days 1%
Ben 8/10 3616 days 1%
Chris 7/10 3622 days 1%
Elizabeth Woodruff 5/10 3625 days 1%
Sandra Verbaarschot 10/10 3625 days 1%
Denise 10/10 3628 days 1%
Lisa Jones 10/10 3632 days 1%
Richard Anthony 8/10 3632 days 1%
Renske Tehurne 8/10 3636 days 1%
Robert 10/10 3637 days 1%
Elise 10/10 3637 days 1%
Fung 10/10 3637 days 1%
Omri Hasson 9/10 3642 days 1%
Aharon 10/10 3643 days 1%
Sue 8/10 3649 days 1%
Ondrej Kacena 8/10 3656 days 1%
Laurie 8/10 3656 days 1%
Eric P 10/10 3664 days 1%
Alex 8/10 3673 days 1%
Natalie 10/10 3685 days 1%
Paul Cowie 7/10 3720 days 1%
Ard 8/10 3720 days 1%
Gabriel Faber 8/10 3720 days 1%
Michael 8/10 3730 days 1%
purplekat99 8/10 3732 days 0%
Wendy Williams 9/10 3737 days 1%
MrsWesley 6/10 3972 days 0%
John 7/10 3978 days 0%
Heike 9/10 3985 days 0%
Colin Sinclair 10/10 3986 days 0%
Angela Shearer 8/10 3986 days 0%
Loic 9/10 4010 days 0%
Reggie 9/10 4011 days 0%
FluerBlum 8/10 4023 days 0%
Hermann 10/10 4024 days 0%
Franz-Josef 9/10 4027 days 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

-6.06% 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 303 days. Adjustments are according to the following table.

Days Adjustment
300 -6.00%
301 -6.02%
302 -6.04%
303 -6.06%
304 -6.08%
305 -6.10%
306 -6.12%

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.