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 | 3968 days | 55% |
| Bruce B | 10/10 | 3996 days | 42% |
| barry aling | 10/10 | 3996 days | 42% |
| luiz montanari | 10/10 | 4027 days | 28% |
| EMMANUEL DIAS DA SILVA | 10/10 | 4058 days | 14% |
| Philip Gattey | 9/10 | 4058 days | 12% |
| Ch. Verling | 10/10 | 4088 days | 0% |
| Ulises Guevara | 10/10 | 4088 days | 0% |
| Dusty | 10/10 | 4088 days | 0% |
| Sandra Downie | 10/10 | 4392 days | 100% |
| Gisle Forseth | 9/10 | 4423 days | 98% |
| Asmawi Wahab | 10/10 | 4698 days | 100% |
| Shelli Leverty | 10/10 | 4698 days | 100% |
| Doug Hamerton | 10/10 | 4698 days | 100% |
| Becky Ivers | 10/10 | 4726 days | 100% |
| Mark Stanford | 10/10 | 4726 days | 100% |
| Lesley barber | 10/10 | 4757 days | 100% |
| Barryatkinson | 10/10 | 4757 days | 100% |
| DonKendra1 | 10/10 | 4849 days | 100% |
| Bushy | 10/10 | 5002 days | 100% |
| Calypso | 10/10 | 5032 days | 100% |
| yromanec | 10/10 | 5032 days | 100% |
| ladyharley | 10/10 | 5063 days | 100% |
| ChrisW | 10/10 | 5063 days | 100% |
| oldbiker | 10/10 | 5063 days | 100% |
| TheHoon | 10/10 | 5063 days | 100% |
| Banana | 10/10 | 5092 days | 100% |
| monakeehn | 10/10 | 5092 days | 100% |
| fdjavid | 10/10 | 5092 days | 100% |
| websterau | 9/10 | 5092 days | 98% |
| Dumyati | 10/10 | 5092 days | 100% |
| holidaze28 | 10/10 | 5123 days | 100% |
| michaelclout | 10/10 | 5123 days | 100% |
| ZeroID | 10/10 | 5123 days | 100% |
| donald | 10/10 | 5123 days | 100% |
| mulhooligan | 10/10 | 5123 days | 100% |
| Stanton | 10/10 | 5123 days | 100% |
| kakapo66 | 10/10 | 5154 days | 100% |
| HughConnor | 10/10 | 5154 days | 100% |
| ruudie012 | 10/10 | 5154 days | 100% |
| lynne_florence | 10/10 | 5154 days | 100% |
| johnnyr | 10/10 | 5154 days | 100% |
| pro213 | 10/10 | 5154 days | 100% |
| chrissywatson1711 | 10/10 | 5154 days | 100% |
| pahoia | 10/10 | 5154 days | 100% |
| Iand | 10/10 | 5154 days | 100% |
| jillowen | 9/10 | 5154 days | 98% |
| AbeB | 10/10 | 5184 days | 100% |
| mikereid | 10/10 | 5184 days | 100% |
| Cmax | 10/10 | 5215 days | 100% |
| gnh2011 | 9/10 | 5215 days | 98% |
| taylaw | 10/10 | 5215 days | 100% |
| mariarivas | 10/10 | 5215 days | 100% |
| flippy0 | 10/10 | 5245 days | 100% |
| squids12 | 10/10 | 5337 days | 100% |
| Rosco | 9/10 | 5398 days | 98% |
| blahutp | 9/10 | 5398 days | 98% |
| mrkunz | 10/10 | 5398 days | 100% |
| clouddreamer | 10/10 | 5398 days | 100% |
| May | 10/10 | 5398 days | 100% |
| mitchaoc | 10/10 | 5429 days | 100% |
| Welshy01 | 10/10 | 5429 days | 100% |
| pamc | 10/10 | 5429 days | 100% |
| zaphood | 10/10 | 5429 days | 100% |
| cruisequeens | 10/10 | 5457 days | 100% |
| adriennevergos | 10/10 | 5457 days | 100% |
| damondosterhus | 10/10 | 5457 days | 100% |
| janetc260 | 10/10 | 5457 days | 100% |
| marpet | 10/10 | 5488 days | 100% |
| roofie | 10/10 | 5488 days | 100% |
| musicman | 10/10 | 5488 days | 100% |
| Merran | 10/10 | 5488 days | 100% |
| traceymarcus1 | 10/10 | 5488 days | 100% |
| Budley1 | 10/10 | 5519 days | 100% |
| vjr | 10/10 | 5519 days | 100% |
| DukeMatthews | 10/10 | 5519 days | 100% |
| hellsknipe356 | 10/10 | 5580 days | 100% |
| KDStorey | 10/10 | 5580 days | 100% |
| robinson | 10/10 | 5580 days | 100% |
| JoeLeeKnipe | 10/10 | 5580 days | 100% |
| lstenhouse | 10/10 | 5610 days | 100% |
| doylouys | 10/10 | 5641 days | 100% |
| Jorgy | 10/10 | 5672 days | 100% |
| Phil Thurbon | 9/10 | 5763 days | 98% |
| awolnow | 10/10 | 5794 days | 100% |
| spb97 | 9/10 | 5794 days | 98% |
| stealhorsecowboy | 10/10 | 5794 days | 100% |
| smithy55 | 9/10 | 5794 days | 98% |
| fitbear | 9/10 | 5794 days | 98% |
| zebradiver | 8/10 | 5794 days | 95% |
| cowboyjohn | 10/10 | 5822 days | 100% |
| wahteh | 10/10 | 5822 days | 100% |
| tommarbru | 10/10 | 5822 days | 100% |
| Mathias | 10/10 | 5822 days | 100% |
| JParkinson | 10/10 | 5822 days | 100% |
| sinead drummy | 10/10 | 5853 days | 100% |
| philip andrew-artha | 10/10 | 5853 days | 100% |
| bmaier | 10/10 | 5853 days | 100% |
| alongthorn | 10/10 | 5853 days | 100% |
| KENMCD | 10/10 | 5853 days | 100% |
| kimreed | 10/10 | 5884 days | 100% |
| joshe051 | 10/10 | 5884 days | 100% |
| Travelling_Kiwi | 10/10 | 5884 days | 100% |
| John Stevens | 10/10 | 5914 days | 100% |
| big_rog | 10/10 | 5914 days | 100% |
| HairyHaggis | 10/10 | 5914 days | 100% |
| Mary Long | 10/10 | 5914 days | 100% |
| stegall | 10/10 | 5914 days | 100% |
| Maureen Lee | 10/10 | 5945 days | 100% |
| monkey | 10/10 | 5945 days | 100% |
| renaud bonnet | 10/10 | 5975 days | 100% |
| George Wheatley | 10/10 | 6098 days | 100% |
| eunie | 10/10 | 6128 days | 100% |
| antoinette | 10/10 | 6130 days | 100% |
| Bananna | 10/10 | 6140 days | 100% |
| Anne Cathala | 10/10 | 6141 days | 100% |
| gordy838 | 9/10 | 6149 days | 98% |
| Janet May | 9/10 | 6153 days | 98% |
| Chuffy57 | 10/10 | 6154 days | 100% |
| Tom Speed | 10/10 | 6159 days | 100% |
| Brenda | 10/10 | 6169 days | 100% |
| Jay & N | 10/10 | 6180 days | 8% |
| MoJo | 10/10 | 6187 days | 100% |
| Tomasz Trawniczek | 10/10 | 6187 days | 100% |
| David Lewis | 9/10 | 6202 days | 98% |
| andy Cant | 10/10 | 6203 days | 100% |
| Catherine Robinson | 10/10 | 6205 days | 100% |
| Samantha Fenton | 10/10 | 6210 days | 100% |
| Judy Macdonald | 10/10 | 6214 days | 100% |
| Allison | 10/10 | 6214 days | 8% |
| Gordon Lawrence | 10/10 | 6247 days | 100% |
| ivkemp | 10/10 | 6256 days | 100% |
| shonell | 10/10 | 6278 days | 100% |
| Aimee Marsh | 10/10 | 6280 days | 100% |
| Kathy Reily | 10/10 | 6283 days | 100% |
| CaptainObvious | 10/10 | 6291 days | 100% |
| Darren Rye | 10/10 | 6296 days | 100% |
| Dolphin | 10/10 | 6303 days | 100% |
| Robin | 10/10 | 6311 days | 100% |
| suedavies | 10/10 | 6312 days | 100% |
| Claire O'Donoghue | 10/10 | 6318 days | 100% |
| Mike | 10/10 | 6318 days | 100% |
| barbara hunn | 8/10 | 6323 days | 95% |
| Mike Morgan | 10/10 | 6324 days | 100% |
| Matt Cross | 10/10 | 6326 days | 100% |
| Denelle Adams | 10/10 | 6330 days | 100% |
| Belinda Keys | 10/10 | 6332 days | 100% |
| Tom Gordon | 9/10 | 6332 days | 98% |
| ashos | 10/10 | 6332 days | 100% |
| hottie | 9/10 | 6332 days | 98% |
| Karen Gibson | 10/10 | 6332 days | 100% |
| Michelle Mulgrew | 10/10 | 6339 days | 100% |
| thehammer | 10/10 | 6353 days | 100% |
| Ele | 10/10 | 6354 days | 100% |
| Bridget Cummins | 10/10 | 6360 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
-4.05% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 44 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 | -3.99% |
| 198 | -4.01% |
| 199 | -4.03% |
| 200 | -4.05% |
| 201 | -4.07% |
| 202 | -4.09% |
| 203 | -4.11% |
| … | … |
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.