Kia ora, 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 Bularangi Harley Tours of New Zealand.
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.
Bularangi Harley Tours of New Zealand
Valid Reviews
155 Valid Reviews
The Bularangi Harley Tours of New Zealand experience has a total of 155 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.
Within these 155 valid reviews, the experience has 2 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 155 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 137 |
|
88% |
| 9/10 | 16 |
|
10% |
| 8/10 | 2 |
|
1% |
| 7/10 | 0 |
|
0% |
| 6/10 | 0 |
|
0% |
| 5/10 | 0 |
|
0% |
| 4/10 | 0 |
|
0% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
98.71% Average
The raw data average (mean) for all the Bularangi Harley Tours of New Zealand valid reviews is 98.71% and is based on 155 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Weighted Average
98.71%
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 |
|---|---|---|---|
| Werner Staab | 10/10 | 3941 days | 86% |
| Bruce B | 10/10 | 3969 days | 80% |
| barry aling | 10/10 | 3969 days | 80% |
| luiz montanari | 10/10 | 4000 days | 74% |
| EMMANUEL DIAS DA SILVA | 10/10 | 4031 days | 67% |
| Philip Gattey | 9/10 | 4031 days | 67% |
| Ch. Verling | 10/10 | 4061 days | 61% |
| Ulises Guevara | 10/10 | 4061 days | 61% |
| Dusty | 10/10 | 4061 days | 61% |
| Sandra Downie | 10/10 | 4366 days | 0% |
| Gisle Forseth | 9/10 | 4397 days | 99% |
| Asmawi Wahab | 10/10 | 4672 days | 100% |
| Shelli Leverty | 10/10 | 4672 days | 100% |
| Doug Hamerton | 10/10 | 4672 days | 100% |
| Becky Ivers | 10/10 | 4700 days | 100% |
| Mark Stanford | 10/10 | 4700 days | 100% |
| Lesley barber | 10/10 | 4731 days | 100% |
| Barryatkinson | 10/10 | 4731 days | 100% |
| DonKendra1 | 10/10 | 4823 days | 100% |
| Bushy | 10/10 | 4975 days | 100% |
| Calypso | 10/10 | 5006 days | 100% |
| yromanec | 10/10 | 5006 days | 100% |
| ladyharley | 10/10 | 5037 days | 100% |
| ChrisW | 10/10 | 5037 days | 100% |
| oldbiker | 10/10 | 5037 days | 100% |
| TheHoon | 10/10 | 5037 days | 100% |
| Banana | 10/10 | 5066 days | 100% |
| monakeehn | 10/10 | 5066 days | 100% |
| fdjavid | 10/10 | 5066 days | 100% |
| websterau | 9/10 | 5066 days | 99% |
| Dumyati | 10/10 | 5066 days | 100% |
| holidaze28 | 10/10 | 5097 days | 100% |
| michaelclout | 10/10 | 5097 days | 100% |
| ZeroID | 10/10 | 5097 days | 100% |
| donald | 10/10 | 5097 days | 100% |
| mulhooligan | 10/10 | 5097 days | 100% |
| Stanton | 10/10 | 5097 days | 100% |
| kakapo66 | 10/10 | 5128 days | 100% |
| HughConnor | 10/10 | 5128 days | 100% |
| ruudie012 | 10/10 | 5128 days | 100% |
| lynne_florence | 10/10 | 5128 days | 100% |
| johnnyr | 10/10 | 5128 days | 100% |
| pro213 | 10/10 | 5128 days | 100% |
| chrissywatson1711 | 10/10 | 5128 days | 100% |
| pahoia | 10/10 | 5128 days | 100% |
| Iand | 10/10 | 5128 days | 100% |
| jillowen | 9/10 | 5128 days | 99% |
| AbeB | 10/10 | 5158 days | 100% |
| mikereid | 10/10 | 5158 days | 100% |
| Cmax | 10/10 | 5189 days | 100% |
| gnh2011 | 9/10 | 5189 days | 99% |
| taylaw | 10/10 | 5189 days | 100% |
| mariarivas | 10/10 | 5189 days | 100% |
| flippy0 | 10/10 | 5218 days | 100% |
| squids12 | 10/10 | 5310 days | 100% |
| Rosco | 9/10 | 5372 days | 99% |
| blahutp | 9/10 | 5372 days | 99% |
| mrkunz | 10/10 | 5372 days | 100% |
| clouddreamer | 10/10 | 5372 days | 100% |
| May | 10/10 | 5372 days | 100% |
| mitchaoc | 10/10 | 5403 days | 100% |
| Welshy01 | 10/10 | 5403 days | 100% |
| pamc | 10/10 | 5403 days | 100% |
| zaphood | 10/10 | 5403 days | 100% |
| cruisequeens | 10/10 | 5431 days | 100% |
| adriennevergos | 10/10 | 5431 days | 100% |
| damondosterhus | 10/10 | 5431 days | 100% |
| janetc260 | 10/10 | 5431 days | 100% |
| marpet | 10/10 | 5462 days | 100% |
| roofie | 10/10 | 5462 days | 100% |
| musicman | 10/10 | 5462 days | 100% |
| Merran | 10/10 | 5462 days | 100% |
| traceymarcus1 | 10/10 | 5462 days | 100% |
| Budley1 | 10/10 | 5493 days | 100% |
| vjr | 10/10 | 5493 days | 100% |
| DukeMatthews | 10/10 | 5493 days | 100% |
| hellsknipe356 | 10/10 | 5554 days | 100% |
| KDStorey | 10/10 | 5554 days | 100% |
| robinson | 10/10 | 5554 days | 100% |
| JoeLeeKnipe | 10/10 | 5554 days | 100% |
| lstenhouse | 10/10 | 5583 days | 100% |
| doylouys | 10/10 | 5614 days | 100% |
| Jorgy | 10/10 | 5645 days | 100% |
| Phil Thurbon | 9/10 | 5737 days | 99% |
| awolnow | 10/10 | 5768 days | 100% |
| spb97 | 9/10 | 5768 days | 99% |
| stealhorsecowboy | 10/10 | 5768 days | 100% |
| smithy55 | 9/10 | 5768 days | 99% |
| fitbear | 9/10 | 5768 days | 99% |
| zebradiver | 8/10 | 5768 days | 98% |
| cowboyjohn | 10/10 | 5796 days | 100% |
| wahteh | 10/10 | 5796 days | 100% |
| tommarbru | 10/10 | 5796 days | 100% |
| Mathias | 10/10 | 5796 days | 100% |
| JParkinson | 10/10 | 5796 days | 100% |
| sinead drummy | 10/10 | 5827 days | 100% |
| philip andrew-artha | 10/10 | 5827 days | 100% |
| bmaier | 10/10 | 5827 days | 100% |
| alongthorn | 10/10 | 5827 days | 100% |
| KENMCD | 10/10 | 5827 days | 100% |
| kimreed | 10/10 | 5858 days | 100% |
| joshe051 | 10/10 | 5858 days | 100% |
| Travelling_Kiwi | 10/10 | 5858 days | 100% |
| John Stevens | 10/10 | 5888 days | 100% |
| big_rog | 10/10 | 5888 days | 100% |
| HairyHaggis | 10/10 | 5888 days | 100% |
| Mary Long | 10/10 | 5888 days | 100% |
| stegall | 10/10 | 5888 days | 100% |
| Maureen Lee | 10/10 | 5919 days | 100% |
| monkey | 10/10 | 5919 days | 100% |
| renaud bonnet | 10/10 | 5948 days | 100% |
| George Wheatley | 10/10 | 6071 days | 100% |
| eunie | 10/10 | 6102 days | 100% |
| antoinette | 10/10 | 6103 days | 100% |
| Bananna | 10/10 | 6113 days | 100% |
| Anne Cathala | 10/10 | 6115 days | 100% |
| gordy838 | 9/10 | 6123 days | 99% |
| Janet May | 9/10 | 6127 days | 99% |
| Chuffy57 | 10/10 | 6127 days | 100% |
| Tom Speed | 10/10 | 6133 days | 100% |
| Brenda | 10/10 | 6142 days | 100% |
| Jay & N | 10/10 | 6153 days | 59% |
| MoJo | 10/10 | 6161 days | 100% |
| Tomasz Trawniczek | 10/10 | 6161 days | 100% |
| David Lewis | 9/10 | 6175 days | 99% |
| andy Cant | 10/10 | 6176 days | 100% |
| Catherine Robinson | 10/10 | 6179 days | 100% |
| Samantha Fenton | 10/10 | 6184 days | 100% |
| Judy Macdonald | 10/10 | 6187 days | 100% |
| Allison | 10/10 | 6188 days | 59% |
| Gordon Lawrence | 10/10 | 6220 days | 100% |
| ivkemp | 10/10 | 6229 days | 100% |
| shonell | 10/10 | 6252 days | 100% |
| Aimee Marsh | 10/10 | 6253 days | 100% |
| Kathy Reily | 10/10 | 6257 days | 100% |
| CaptainObvious | 10/10 | 6265 days | 100% |
| Darren Rye | 10/10 | 6269 days | 100% |
| Dolphin | 10/10 | 6276 days | 100% |
| Robin | 10/10 | 6285 days | 100% |
| suedavies | 10/10 | 6285 days | 100% |
| Claire O'Donoghue | 10/10 | 6291 days | 100% |
| Mike | 10/10 | 6291 days | 100% |
| barbara hunn | 8/10 | 6296 days | 98% |
| Mike Morgan | 10/10 | 6297 days | 100% |
| Matt Cross | 10/10 | 6299 days | 100% |
| Denelle Adams | 10/10 | 6303 days | 100% |
| Belinda Keys | 10/10 | 6305 days | 100% |
| Tom Gordon | 9/10 | 6305 days | 99% |
| ashos | 10/10 | 6305 days | 100% |
| hottie | 9/10 | 6305 days | 99% |
| Karen Gibson | 10/10 | 6305 days | 100% |
| Michelle Mulgrew | 10/10 | 6312 days | 100% |
| thehammer | 10/10 | 6326 days | 100% |
| Ele | 10/10 | 6327 days | 100% |
| Bridget Cummins | 10/10 | 6333 days | 100% |
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 Bularangi Harley Tours of New Zealand experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-4.06% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 42 days. However the Bularangi Harley Tours of New Zealand 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 Bularangi Harley Tours of New Zealand experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -4.00% |
| 198 | -4.02% |
| 199 | -4.04% |
| 200 | -4.06% |
| 201 | -4.08% |
| 202 | -4.10% |
| 203 | -4.12% |
| … | … |
Balancing Adjustment
0.47% 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
95%
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.