Hey, 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.
Fox Glacier Guiding
Valid Reviews
212 Valid Reviews
The Fox Glacier Guiding experience has a total of 212 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 212 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 71 |
|
33% |
| 9/10 | 52 |
|
25% |
| 8/10 | 54 |
|
25% |
| 7/10 | 18 |
|
8% |
| 6/10 | 7 |
|
3% |
| 5/10 | 3 |
|
1% |
| 4/10 | 6 |
|
3% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 1 |
|
0% |
85.75% Average
The raw data average (mean) for all the Fox Glacier Guiding valid reviews is 85.75% and is based on 212 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 212 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
87.59%
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 |
|---|---|---|---|
| Ingrid | 10/10 | 1653 days | 100% |
| Mona Uttendorf | 10/10 | 3333 days | 31% |
| Sebastian Braun | 10/10 | 3338 days | 30% |
| Tanya Davies | 10/10 | 3387 days | 29% |
| Danielle Stam | 7/10 | 3641 days | 20% |
| Carmen | 10/10 | 3957 days | 12% |
| Claudia Hillebrand | 4/10 | 4305 days | 1% |
| Max Backelandt | 9/10 | 4311 days | 2% |
| Marie Toulemonde | 10/10 | 4311 days | 2% |
| Mark | 7/10 | 4314 days | 2% |
| Daniel Robledo | 8/10 | 4333 days | 1% |
| Maria Camen Santos Lopez | 9/10 | 4333 days | 1% |
| Mara | 9/10 | 4334 days | 1% |
| Andrea Morello | 7/10 | 4334 days | 1% |
| Maria = Moller Hansen | 9/10 | 4343 days | 1% |
| Simon Tanguy | 9/10 | 4351 days | 1% |
| Gassat | 4/10 | 4354 days | 0% |
| Lena Jensen | 9/10 | 4367 days | 0% |
| Jesper Andersen | 9/10 | 4367 days | 0% |
| Claire Lieval | 9/10 | 4379 days | 0% |
| Pioter Jurkowski | 7/10 | 4391 days | 14% |
| Jesse Farrell | 8/10 | 4400 days | 15% |
| Philipp Haass | 6/10 | 4400 days | 13% |
| Chantal | 10/10 | 4404 days | 15% |
| Ken S | 10/10 | 4422 days | 15% |
| Ron Stenhouse | 6/10 | 4666 days | 13% |
| Elizabeth Stenhouse | 8/10 | 4666 days | 15% |
| Andreas Jarvel | 9/10 | 4680 days | 15% |
| Pete Wilson | 4/10 | 4683 days | 10% |
| Marcel | 7/10 | 4690 days | 14% |
| Maria | 8/10 | 4690 days | 15% |
| Clare Cannon | 8/10 | 4707 days | 15% |
| Sara Omary | 9/10 | 4707 days | 15% |
| S M | 10/10 | 4725 days | 15% |
| Alison Langley | 8/10 | 4769 days | 15% |
| Liam Day | 9/10 | 4773 days | 15% |
| Martyn Kool | 8/10 | 4773 days | 15% |
| Michael Kretzschmar | 9/10 | 4773 days | 15% |
| Marieke | 9/10 | 4773 days | 15% |
| Kevin Desjandino | 10/10 | 4774 days | 15% |
| Sharon Yates | 10/10 | 4775 days | 15% |
| Frans Derks | 8/10 | 4780 days | 15% |
| Alexandra van den Brack | 8/10 | 4784 days | 15% |
| Frank and Suzanne | 8/10 | 4787 days | 15% |
| Erik Funk | 8/10 | 4794 days | 15% |
| tanyap | 4/10 | 4817 days | 10% |
| Rob Klauer | 8/10 | 5050 days | 15% |
| Petr Stepanek | 7/10 | 5054 days | 14% |
| Alan Brady | 9/10 | 5059 days | 15% |
| sidcupjon | 9/10 | 5062 days | 15% |
| Robert & Bridget Holden | 8/10 | 5071 days | 15% |
| Vincent & Lian | 9/10 | 5072 days | 15% |
| Stam | 9/10 | 5073 days | 15% |
| Tim & Judith | 8/10 | 5074 days | 15% |
| Rob Gill | 10/10 | 5075 days | 15% |
| Cindy & Glen Kerunsky | 10/10 | 5078 days | 15% |
| R Seiferling | 10/10 | 5083 days | 15% |
| Ursi Meier | 9/10 | 5085 days | 15% |
| Thomas Krause | 8/10 | 5085 days | 15% |
| Hugo ten Brink | 8/10 | 5089 days | 15% |
| kiwifrenchy | 10/10 | 5091 days | 15% |
| Katja Klein | 9/10 | 5136 days | 15% |
| Judith | 8/10 | 5142 days | 15% |
| damaca | 10/10 | 5183 days | 15% |
| KarenW | 10/10 | 5244 days | 15% |
| neilqecosse | 9/10 | 5244 days | 15% |
| MeganJane_85 | 1/10 | 5367 days | 6% |
| Marcus | 9/10 | 5387 days | 15% |
| Lisa Milton | 10/10 | 5390 days | 15% |
| Ken Talan | 10/10 | 5393 days | 15% |
| Alita Smith | 9/10 | 5400 days | 15% |
| Leroy Dimitri | 10/10 | 5410 days | 15% |
| Mr & Mrs Palmer | 9/10 | 5414 days | 15% |
| Sayaka | 10/10 | 5414 days | 15% |
| Stoop | 8/10 | 5414 days | 15% |
| Jacob | 9/10 | 5415 days | 15% |
| Maike | 9/10 | 5416 days | 15% |
| Kauzta | 10/10 | 5416 days | 15% |
| Laura Malins | 8/10 | 5418 days | 15% |
| K & J Overton | 8/10 | 5422 days | 15% |
| Betten | 10/10 | 5427 days | 15% |
| taniadeanryanbrittany | 8/10 | 5428 days | 15% |
| Nicolas | 7/10 | 5429 days | 14% |
| Lenore Dejong | 9/10 | 5430 days | 15% |
| Manu & Gabi | 10/10 | 5433 days | 15% |
| Laura Hayes | 10/10 | 5443 days | 15% |
| Maite Severins | 7/10 | 5447 days | 14% |
| Helen Keighley | 10/10 | 5448 days | 15% |
| Ryan Tull | 10/10 | 5451 days | 15% |
| Calvin Parsons | 8/10 | 5456 days | 15% |
| Christian Foerster | 7/10 | 5456 days | 14% |
| Kristie | 10/10 | 5479 days | 15% |
| elpo | 9/10 | 5701 days | 15% |
| Baumgarten | 8/10 | 5729 days | 15% |
| Stephen M | 7/10 | 5774 days | 14% |
| Corine van Been | 8/10 | 5775 days | 15% |
| s_butler | 10/10 | 5781 days | 15% |
| Benedict Fluthman | 6/10 | 5783 days | 13% |
| Peter Schmidt | 5/10 | 5793 days | 11% |
| Nicky and Andy Prescott | 10/10 | 5795 days | 15% |
| Jackie | 9/10 | 5812 days | 15% |
| Vincente Garrido | 8/10 | 5816 days | 15% |
| Keith Wilde | 10/10 | 5816 days | 15% |
| Ian E | 8/10 | 5817 days | 15% |
| kate | 5/10 | 5818 days | 11% |
| Rob | 8/10 | 5819 days | 15% |
| emily walters | 10/10 | 5821 days | 15% |
| Peter Ortner | 9/10 | 5830 days | 15% |
| Nigel Armstrong | 10/10 | 5832 days | 15% |
| Grainne Ahern | 4/10 | 5852 days | 10% |
| Chidlebyte | 10/10 | 5852 days | 15% |
| gabei | 7/10 | 5867 days | 14% |
| mariak | 7/10 | 5869 days | 14% |
| marijad | 10/10 | 5871 days | 15% |
| Paul Nugent | 8/10 | 5883 days | 15% |
| Misha | 10/10 | 5883 days | 15% |
| Alan Riley | 8/10 | 5895 days | 15% |
| Ann Riley | 8/10 | 5895 days | 15% |
| Eimear Doyle | 9/10 | 5895 days | 15% |
| MV Vroenhoven | 10/10 | 5898 days | 15% |
| Sara Reekmans | 9/10 | 5906 days | 15% |
| Emily and Alex | 9/10 | 5910 days | 15% |
| neilchelt | 10/10 | 5913 days | 15% |
| jank | 10/10 | 5974 days | 15% |
| alanvn | 9/10 | 5996 days | 15% |
| bogaard | 10/10 | 6009 days | 15% |
| lorah | 10/10 | 6017 days | 15% |
| joevw | 9/10 | 6082 days | 15% |
| OliverG1 | 8/10 | 6115 days | 15% |
| Tim_P | 6/10 | 6124 days | 13% |
| Nathalie | 8/10 | 6124 days | 15% |
| Sofie | 9/10 | 6127 days | 15% |
| ElissaH | 10/10 | 6129 days | 15% |
| KjellR | 9/10 | 6129 days | 15% |
| BonnieH | 9/10 | 6129 days | 15% |
| CharityW | 8/10 | 6129 days | 15% |
| Paul | 10/10 | 6131 days | 15% |
| eskim1018 | 9/10 | 6139 days | 15% |
| ChrisD | 10/10 | 6143 days | 15% |
| Christian Moll | 9/10 | 6143 days | 15% |
| david | 10/10 | 6143 days | 15% |
| Doll | 10/10 | 6151 days | 15% |
| A | 10/10 | 6159 days | 15% |
| Tolsten | 10/10 | 6159 days | 15% |
| GaryW | 8/10 | 6162 days | 15% |
| ElizabethF | 9/10 | 6162 days | 15% |
| Claudia | 4/10 | 6164 days | 10% |
| Jason | 7/10 | 6166 days | 14% |
| John | 8/10 | 6169 days | 15% |
| Hans | 8/10 | 6176 days | 15% |
| Carly | 7/10 | 6178 days | 14% |
| Jeffrey C | 10/10 | 6186 days | 15% |
| SueB | 10/10 | 6186 days | 15% |
| Dalit | 10/10 | 6193 days | 15% |
| Jon | 10/10 | 6198 days | 15% |
| Kathrin | 9/10 | 6200 days | 15% |
| Oliver | 8/10 | 6201 days | 15% |
| Patrick | 8/10 | 6204 days | 15% |
| Andrew | 8/10 | 6204 days | 15% |
| Graham | 6/10 | 6213 days | 13% |
| Maria | 10/10 | 6240 days | 15% |
| Jordi | 6/10 | 6248 days | 13% |
| nicole | 10/10 | 6250 days | 15% |
| Rowan | 9/10 | 6273 days | 15% |
| abby | 9/10 | 6284 days | 15% |
| Andrew | 9/10 | 6294 days | 15% |
| Anna | 10/10 | 6325 days | 15% |
| Atsuko | 8/10 | 6334 days | 15% |
| Trina | 10/10 | 6352 days | 15% |
| Terri Scott | 10/10 | 6363 days | 15% |
| Brian | 10/10 | 6376 days | 15% |
| Wolfgang | 8/10 | 6400 days | 15% |
| Gorka Rojas | 9/10 | 6400 days | 15% |
| Ashlee Roberts | 10/10 | 6424 days | 15% |
| Corin Kraft | 10/10 | 6469 days | 15% |
| Anke | 9/10 | 6477 days | 15% |
| Olga | 7/10 | 6493 days | 14% |
| Ben | 8/10 | 6498 days | 15% |
| Chris | 7/10 | 6504 days | 14% |
| Elizabeth Woodruff | 5/10 | 6507 days | 11% |
| Sandra Verbaarschot | 10/10 | 6507 days | 15% |
| Denise | 10/10 | 6510 days | 15% |
| Lisa Jones | 10/10 | 6514 days | 15% |
| Richard Anthony | 8/10 | 6514 days | 15% |
| Renske Tehurne | 8/10 | 6518 days | 15% |
| Robert | 10/10 | 6519 days | 15% |
| Elise | 10/10 | 6519 days | 15% |
| Fung | 10/10 | 6519 days | 15% |
| Omri Hasson | 9/10 | 6524 days | 15% |
| Aharon | 10/10 | 6525 days | 15% |
| Sue | 8/10 | 6531 days | 15% |
| Ondrej Kacena | 8/10 | 6538 days | 15% |
| Laurie | 8/10 | 6538 days | 15% |
| Eric P | 10/10 | 6546 days | 15% |
| Alex | 8/10 | 6555 days | 15% |
| Natalie | 10/10 | 6567 days | 15% |
| Paul Cowie | 7/10 | 6602 days | 14% |
| Ard | 8/10 | 6602 days | 15% |
| Gabriel Faber | 8/10 | 6602 days | 15% |
| Michael | 8/10 | 6612 days | 15% |
| purplekat99 | 8/10 | 6614 days | 15% |
| Wendy Williams | 9/10 | 6619 days | 15% |
| MrsWesley | 6/10 | 6854 days | 13% |
| John | 7/10 | 6860 days | 14% |
| Heike | 9/10 | 6867 days | 15% |
| Colin Sinclair | 10/10 | 6868 days | 15% |
| Angela Shearer | 8/10 | 6868 days | 15% |
| Loic | 9/10 | 6892 days | 15% |
| Reggie | 9/10 | 6893 days | 15% |
| FluerBlum | 8/10 | 6905 days | 15% |
| Hermann | 10/10 | 6906 days | 15% |
| Franz-Josef | 9/10 | 6909 days | 15% |
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
-4.05% 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.07% |
| 202 | -4.09% |
| 203 | -4.11% |
| … | … |
Balancing Adjustment
2.13% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
86%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.