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

85.00%

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 1463 days true 4.28 100%
Sebastian Braun 10/10 1468 days true 4.27 100%
Tanya Davies 10/10 1517 days 4.17 98%
Danielle Stam 7/10 1771 days true 3.35 78%
Carmen 10/10 2087 days true 3.06 71%
Claudia Hillebrand 4/10 2435 days true 1.88 44%
Max Backelandt 9/10 2441 days true 2.37 55%
Marie Toulemonde 10/10 2441 days true 2.37 55%
Mark 7/10 2444 days true 2.15 50%
Daniel Robledo 8/10 2463 days true 2.21 52%
Maria Camen Santos Lopez 9/10 2463 days true 2.32 54%
Mara 9/10 2464 days true 2.32 54%
Andrea Morello 7/10 2464 days true 2.11 49%
Maria = Moller Hansen 9/10 2473 days true 2.3 54%
Simon Tanguy 9/10 2481 days true 2.29 53%
Gassat 4/10 2484 days true 1.8 42%
Lena Jensen 9/10 2497 days true 2.26 53%
Jesper Andersen 9/10 2497 days true 2.26 53%
Claire Lieval 9/10 2509 days true 2.23 52%
Pioter Jurkowski 7/10 2521 days 2.01 47%
Jesse Farrell 8/10 2530 days true 2.08 49%
Philipp Haass 6/10 2530 days true 1.82 43%
Chantal 10/10 2534 days true 2.18 51%
Ken S 10/10 2552 days 2.15 50%
Ron Stenhouse 6/10 2796 days true 1.39 32%
Elizabeth Stenhouse 8/10 2796 days true 1.59 37%
Andreas Jarvel 9/10 2810 days true 1.64 38%
Pete Wilson 4/10 2813 days true 1.29 30%
Marcel 7/10 2820 days true 1.48 35%
Maria 8/10 2820 days true 1.54 36%
Clare Cannon 8/10 2837 days true 1.51 35%
Sara Omary 9/10 2837 days true 1.59 37%
S M 10/10 2855 days 1.56 36%
Alison Langley 8/10 2899 days true 1.4 33%
Liam Day 9/10 2903 days true 1.46 34%
Martyn Kool 8/10 2903 days true 1.39 32%
Michael Kretzschmar 9/10 2903 days true 1.46 34%
Marieke 9/10 2903 days true 1.46 34%
Kevin Desjandino 10/10 2904 days true 1.46 34%
Sharon Yates 10/10 2905 days true 1.46 34%
Frans Derks 8/10 2910 days true 1.38 32%
Alexandra van den Brack 8/10 2914 days true 1.37 32%
Frank and Suzanne 8/10 2917 days true 1.36 32%
Erik Funk 8/10 2924 days true 1.35 32%
tanyap 4/10 2947 days 1.09 25%
Rob Klauer 8/10 3180 days true 0.87 20%
Petr Stepanek 7/10 3184 days true 0.83 19%
Alan Brady 9/10 3189 days true 0.9 21%
sidcupjon 9/10 3192 days 0.9 21%
Robert & Bridget Holden 8/10 3201 days true 0.83 20%
Vincent & Lian 9/10 3202 days true 0.88 20%
Stam 9/10 3203 days true 0.87 20%
Tim & Judith 8/10 3204 days true 0.83 19%
Rob Gill 10/10 3205 days true 0.87 20%
Cindy & Glen Kerunsky 10/10 3208 days true 0.86 20%
R Seiferling 10/10 3213 days true 0.86 20%
Ursi Meier 9/10 3215 days true 0.85 20%
Thomas Krause 8/10 3215 days true 0.81 19%
Hugo ten Brink 8/10 3219 days true 0.8 19%
kiwifrenchy 10/10 3221 days 0.84 20%
Katja Klein 9/10 3266 days true 0.75 18%
Judith 8/10 3272 days true 0.7 16%
damaca 10/10 3313 days 0.66 15%
KarenW 10/10 3374 days 0.54 13%
neilqecosse 9/10 3374 days 0.54 13%
MeganJane_85 1/10 3497 days 0.22 5%
Marcus 9/10 3517 days true 0.26 6%
Lisa Milton 10/10 3520 days true 0.25 6%
Ken Talan 10/10 3523 days true 0.25 6%
Alita Smith 9/10 3530 days true 0.23 5%
Leroy Dimitri 10/10 3540 days true 0.22 5%
Mr & Mrs Palmer 9/10 3544 days true 0.21 5%
Sayaka 10/10 3544 days true 0.21 5%
Stoop 8/10 3544 days true 0.2 5%
Jacob 9/10 3545 days true 0.21 5%
Maike 9/10 3546 days true 0.2 5%
Kauzta 10/10 3546 days true 0.2 5%
Laura Malins 8/10 3548 days true 0.19 4%
K & J Overton 8/10 3552 days true 0.18 4%
Betten 10/10 3557 days true 0.18 4%
taniadeanryanbrittany 8/10 3558 days 0.17 4%
Nicolas 7/10 3559 days true 0.16 4%
Lenore Dejong 9/10 3560 days true 0.18 4%
Manu & Gabi 10/10 3563 days true 0.17 4%
Laura Hayes 10/10 3573 days true 0.15 4%
Maite Severins 7/10 3577 days true 0.13 3%
Helen Keighley 10/10 3578 days true 0.14 3%
Ryan Tull 10/10 3581 days true 0.14 3%
Calvin Parsons 8/10 3586 days true 0.12 3%
Christian Foerster 7/10 3586 days true 0.11 3%
Kristie 10/10 3609 days true 0.08 2%
elpo 9/10 3831 days 0.0 0%
Baumgarten 8/10 3859 days true 0.0 0%
Stephen M 7/10 3904 days true 0.0 0%
Corine van Been 8/10 3905 days true 0.0 0%
s_butler 10/10 3911 days true 0.0 0%
Benedict Fluthman 6/10 3913 days true 0.0 0%
Peter Schmidt 5/10 3923 days 0.0 0%
Nicky and Andy Prescott 10/10 3925 days true 0.0 0%
Jackie 9/10 3942 days true 0.0 0%
Vincente Garrido 8/10 3946 days true 0.0 0%
Keith Wilde 10/10 3946 days true 0.0 0%
Ian E 8/10 3947 days true 0.0 0%
kate 5/10 3948 days true 0.0 0%
Rob 8/10 3949 days true 0.0 0%
emily walters 10/10 3951 days 0.0 0%
Peter Ortner 9/10 3960 days true 0.0 0%
Nigel Armstrong 10/10 3962 days true 0.0 0%
Grainne Ahern 4/10 3982 days 0.0 0%
Chidlebyte 10/10 3982 days 0.0 0%
gabei 7/10 3997 days true 0.0 0%
mariak 7/10 3999 days true 0.0 0%
marijad 10/10 4001 days true 0.0 0%
Paul Nugent 8/10 4013 days 0.0 0%
Misha 10/10 4013 days 0.0 0%
Alan Riley 8/10 4025 days true 0.0 0%
Ann Riley 8/10 4025 days true 0.0 0%
Eimear Doyle 9/10 4025 days true 0.0 0%
MV Vroenhoven 10/10 4028 days true 0.0 0%
Sara Reekmans 9/10 4036 days true 0.0 0%
Emily and Alex 9/10 4040 days true 0.0 0%
neilchelt 10/10 4043 days 0.0 0%
jank 10/10 4104 days true 0.0 0%
alanvn 9/10 4126 days true 0.0 0%
bogaard 10/10 4139 days true 0.0 0%
lorah 10/10 4147 days true 0.0 0%
joevw 9/10 4212 days true 0.0 0%
OliverG1 8/10 4245 days true 0.0 0%
Tim_P 6/10 4254 days true 0.0 0%
Nathalie 8/10 4254 days true 0.0 0%
Sofie 9/10 4257 days 0.0 0%
ElissaH 10/10 4259 days true 0.0 0%
KjellR 9/10 4259 days true 0.0 0%
BonnieH 9/10 4259 days true 0.0 0%
CharityW 8/10 4259 days true 0.0 0%
Paul 10/10 4261 days true 0.0 0%
eskim1018 9/10 4269 days 0.0 0%
ChrisD 10/10 4273 days true 0.0 0%
Christian Moll 9/10 4273 days true 0.0 0%
david 10/10 4273 days true 0.0 0%
Doll 10/10 4281 days true 0.0 0%
A 10/10 4289 days true 0.0 0%
Tolsten 10/10 4289 days true 0.0 0%
GaryW 8/10 4292 days true 0.0 0%
ElizabethF 9/10 4292 days true 0.0 0%
Claudia 4/10 4294 days true 0.0 0%
Jason 7/10 4296 days true 0.0 0%
John 8/10 4299 days true 0.0 0%
Hans 8/10 4306 days true 0.0 0%
Carly 7/10 4308 days true 0.0 0%
Jeffrey C 10/10 4316 days 0.0 0%
SueB 10/10 4316 days true 0.0 0%
Dalit 10/10 4323 days true 0.0 0%
Jon 10/10 4328 days true 0.0 0%
Kathrin 9/10 4330 days true 0.0 0%
Oliver 8/10 4331 days true 0.0 0%
Patrick 8/10 4334 days true 0.0 0%
Andrew 8/10 4334 days true 0.0 0%
Graham 6/10 4343 days true 0.0 0%
Maria 10/10 4370 days true 0.0 0%
Jordi 6/10 4378 days true 0.0 0%
nicole 10/10 4380 days 0.0 0%
Rowan 9/10 4403 days true 0.0 0%
abby 9/10 4414 days true 0.0 0%
Andrew 9/10 4424 days true 0.0 0%
Anna 10/10 4455 days true 0.0 0%
Atsuko 8/10 4464 days true 0.0 0%
Trina 10/10 4482 days true 0.0 0%
Terri Scott 10/10 4493 days true 0.0 0%
Brian 10/10 4506 days true 0.0 0%
Wolfgang 8/10 4530 days true 0.0 0%
Gorka Rojas 9/10 4530 days true 0.0 0%
Ashlee Roberts 10/10 4554 days 0.0 0%
Corin Kraft 10/10 4599 days true 0.0 0%
Anke 9/10 4607 days true 0.0 0%
Olga 7/10 4623 days true 0.0 0%
Ben 8/10 4628 days true 0.0 0%
Chris 7/10 4634 days true 0.0 0%
Elizabeth Woodruff 5/10 4637 days true 0.0 0%
Sandra Verbaarschot 10/10 4637 days true 0.0 0%
Denise 10/10 4640 days true 0.0 0%
Lisa Jones 10/10 4644 days true 0.0 0%
Richard Anthony 8/10 4644 days true 0.0 0%
Renske Tehurne 8/10 4648 days true 0.0 0%
Robert 10/10 4649 days true 0.0 0%
Elise 10/10 4649 days true 0.0 0%
Fung 10/10 4649 days true 0.0 0%
Omri Hasson 9/10 4654 days true 0.0 0%
Aharon 10/10 4655 days true 0.0 0%
Sue 8/10 4661 days true 0.0 0%
Ondrej Kacena 8/10 4668 days true 0.0 0%
Laurie 8/10 4668 days true 0.0 0%
Eric P 10/10 4676 days true 0.0 0%
Alex 8/10 4685 days true 0.0 0%
Natalie 10/10 4697 days true 0.0 0%
Paul Cowie 7/10 4732 days true 0.0 0%
Ard 8/10 4732 days true 0.0 0%
Gabriel Faber 8/10 4732 days true 0.0 0%
Michael 8/10 4742 days true 0.0 0%
purplekat99 8/10 4744 days 0.0 0%
Wendy Williams 9/10 4749 days true 0.0 0%
MrsWesley 6/10 4984 days true 0.0 0%
John 7/10 4990 days true 0.0 0%
Heike 9/10 4997 days true 0.0 0%
Colin Sinclair 10/10 4998 days true 0.0 0%
Angela Shearer 8/10 4998 days true 0.0 0%
Loic 9/10 5022 days true 0.0 0%
Reggie 9/10 5023 days true 0.0 0%
FluerBlum 8/10 5035 days true 0.0 0%
Hermann 10/10 5036 days true 0.0 0%
Franz-Josef 9/10 5039 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

-4.07% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 43 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 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.

The Fox Glacier Guiding experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -4.00%
198 -4.03%
199 -4.05%
200 -4.07%
201 -4.09%
202 -4.11%
203 -4.13%

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.