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 | 3944 days | 85% |
| Bruce B | 10/10 | 3972 days | 79% |
| barry aling | 10/10 | 3972 days | 79% |
| luiz montanari | 10/10 | 4003 days | 73% |
| EMMANUEL DIAS DA SILVA | 10/10 | 4034 days | 67% |
| Philip Gattey | 9/10 | 4034 days | 66% |
| Ch. Verling | 10/10 | 4064 days | 61% |
| Ulises Guevara | 10/10 | 4064 days | 61% |
| Dusty | 10/10 | 4064 days | 61% |
| Sandra Downie | 10/10 | 4369 days | 0% |
| Gisle Forseth | 9/10 | 4400 days | 99% |
| Asmawi Wahab | 10/10 | 4675 days | 100% |
| Shelli Leverty | 10/10 | 4675 days | 100% |
| Doug Hamerton | 10/10 | 4675 days | 100% |
| Becky Ivers | 10/10 | 4703 days | 100% |
| Mark Stanford | 10/10 | 4703 days | 100% |
| Lesley barber | 10/10 | 4734 days | 100% |
| Barryatkinson | 10/10 | 4734 days | 100% |
| DonKendra1 | 10/10 | 4826 days | 100% |
| Bushy | 10/10 | 4979 days | 100% |
| Calypso | 10/10 | 5009 days | 100% |
| yromanec | 10/10 | 5009 days | 100% |
| ladyharley | 10/10 | 5040 days | 100% |
| ChrisW | 10/10 | 5040 days | 100% |
| oldbiker | 10/10 | 5040 days | 100% |
| TheHoon | 10/10 | 5040 days | 100% |
| Banana | 10/10 | 5069 days | 100% |
| monakeehn | 10/10 | 5069 days | 100% |
| fdjavid | 10/10 | 5069 days | 100% |
| websterau | 9/10 | 5069 days | 99% |
| Dumyati | 10/10 | 5069 days | 100% |
| holidaze28 | 10/10 | 5100 days | 100% |
| michaelclout | 10/10 | 5100 days | 100% |
| ZeroID | 10/10 | 5100 days | 100% |
| donald | 10/10 | 5100 days | 100% |
| mulhooligan | 10/10 | 5100 days | 100% |
| Stanton | 10/10 | 5100 days | 100% |
| kakapo66 | 10/10 | 5131 days | 100% |
| HughConnor | 10/10 | 5131 days | 100% |
| ruudie012 | 10/10 | 5131 days | 100% |
| lynne_florence | 10/10 | 5131 days | 100% |
| johnnyr | 10/10 | 5131 days | 100% |
| pro213 | 10/10 | 5131 days | 100% |
| chrissywatson1711 | 10/10 | 5131 days | 100% |
| pahoia | 10/10 | 5131 days | 100% |
| Iand | 10/10 | 5131 days | 100% |
| jillowen | 9/10 | 5131 days | 99% |
| AbeB | 10/10 | 5161 days | 100% |
| mikereid | 10/10 | 5161 days | 100% |
| Cmax | 10/10 | 5192 days | 100% |
| gnh2011 | 9/10 | 5192 days | 99% |
| taylaw | 10/10 | 5192 days | 100% |
| mariarivas | 10/10 | 5192 days | 100% |
| flippy0 | 10/10 | 5222 days | 100% |
| squids12 | 10/10 | 5314 days | 100% |
| Rosco | 9/10 | 5375 days | 99% |
| blahutp | 9/10 | 5375 days | 99% |
| mrkunz | 10/10 | 5375 days | 100% |
| clouddreamer | 10/10 | 5375 days | 100% |
| May | 10/10 | 5375 days | 100% |
| mitchaoc | 10/10 | 5406 days | 100% |
| Welshy01 | 10/10 | 5406 days | 100% |
| pamc | 10/10 | 5406 days | 100% |
| zaphood | 10/10 | 5406 days | 100% |
| cruisequeens | 10/10 | 5434 days | 100% |
| adriennevergos | 10/10 | 5434 days | 100% |
| damondosterhus | 10/10 | 5434 days | 100% |
| janetc260 | 10/10 | 5434 days | 100% |
| marpet | 10/10 | 5465 days | 100% |
| roofie | 10/10 | 5465 days | 100% |
| musicman | 10/10 | 5465 days | 100% |
| Merran | 10/10 | 5465 days | 100% |
| traceymarcus1 | 10/10 | 5465 days | 100% |
| Budley1 | 10/10 | 5496 days | 100% |
| vjr | 10/10 | 5496 days | 100% |
| DukeMatthews | 10/10 | 5496 days | 100% |
| hellsknipe356 | 10/10 | 5557 days | 100% |
| KDStorey | 10/10 | 5557 days | 100% |
| robinson | 10/10 | 5557 days | 100% |
| JoeLeeKnipe | 10/10 | 5557 days | 100% |
| lstenhouse | 10/10 | 5587 days | 100% |
| doylouys | 10/10 | 5618 days | 100% |
| Jorgy | 10/10 | 5649 days | 100% |
| Phil Thurbon | 9/10 | 5740 days | 99% |
| awolnow | 10/10 | 5771 days | 100% |
| spb97 | 9/10 | 5771 days | 99% |
| stealhorsecowboy | 10/10 | 5771 days | 100% |
| smithy55 | 9/10 | 5771 days | 99% |
| fitbear | 9/10 | 5771 days | 99% |
| zebradiver | 8/10 | 5771 days | 98% |
| cowboyjohn | 10/10 | 5799 days | 100% |
| wahteh | 10/10 | 5799 days | 100% |
| tommarbru | 10/10 | 5799 days | 100% |
| Mathias | 10/10 | 5799 days | 100% |
| JParkinson | 10/10 | 5799 days | 100% |
| sinead drummy | 10/10 | 5830 days | 100% |
| philip andrew-artha | 10/10 | 5830 days | 100% |
| bmaier | 10/10 | 5830 days | 100% |
| alongthorn | 10/10 | 5830 days | 100% |
| KENMCD | 10/10 | 5830 days | 100% |
| kimreed | 10/10 | 5861 days | 100% |
| joshe051 | 10/10 | 5861 days | 100% |
| Travelling_Kiwi | 10/10 | 5861 days | 100% |
| John Stevens | 10/10 | 5891 days | 100% |
| big_rog | 10/10 | 5891 days | 100% |
| HairyHaggis | 10/10 | 5891 days | 100% |
| Mary Long | 10/10 | 5891 days | 100% |
| stegall | 10/10 | 5891 days | 100% |
| Maureen Lee | 10/10 | 5922 days | 100% |
| monkey | 10/10 | 5922 days | 100% |
| renaud bonnet | 10/10 | 5952 days | 100% |
| George Wheatley | 10/10 | 6075 days | 100% |
| eunie | 10/10 | 6105 days | 100% |
| antoinette | 10/10 | 6107 days | 100% |
| Bananna | 10/10 | 6116 days | 100% |
| Anne Cathala | 10/10 | 6118 days | 100% |
| gordy838 | 9/10 | 6126 days | 99% |
| Janet May | 9/10 | 6130 days | 99% |
| Chuffy57 | 10/10 | 6131 days | 100% |
| Tom Speed | 10/10 | 6136 days | 100% |
| Brenda | 10/10 | 6146 days | 100% |
| Jay & N | 10/10 | 6156 days | 60% |
| MoJo | 10/10 | 6164 days | 100% |
| Tomasz Trawniczek | 10/10 | 6164 days | 100% |
| David Lewis | 9/10 | 6178 days | 99% |
| andy Cant | 10/10 | 6179 days | 100% |
| Catherine Robinson | 10/10 | 6182 days | 100% |
| Samantha Fenton | 10/10 | 6187 days | 100% |
| Judy Macdonald | 10/10 | 6191 days | 100% |
| Allison | 10/10 | 6191 days | 60% |
| Gordon Lawrence | 10/10 | 6224 days | 100% |
| ivkemp | 10/10 | 6232 days | 100% |
| shonell | 10/10 | 6255 days | 100% |
| Aimee Marsh | 10/10 | 6256 days | 100% |
| Kathy Reily | 10/10 | 6260 days | 100% |
| CaptainObvious | 10/10 | 6268 days | 100% |
| Darren Rye | 10/10 | 6273 days | 100% |
| Dolphin | 10/10 | 6279 days | 100% |
| Robin | 10/10 | 6288 days | 100% |
| suedavies | 10/10 | 6288 days | 100% |
| Claire O'Donoghue | 10/10 | 6295 days | 100% |
| Mike | 10/10 | 6295 days | 100% |
| barbara hunn | 8/10 | 6299 days | 98% |
| Mike Morgan | 10/10 | 6301 days | 100% |
| Matt Cross | 10/10 | 6302 days | 100% |
| Denelle Adams | 10/10 | 6306 days | 100% |
| Belinda Keys | 10/10 | 6308 days | 100% |
| Tom Gordon | 9/10 | 6308 days | 99% |
| ashos | 10/10 | 6308 days | 100% |
| hottie | 9/10 | 6308 days | 99% |
| Karen Gibson | 10/10 | 6308 days | 100% |
| Michelle Mulgrew | 10/10 | 6316 days | 100% |
| thehammer | 10/10 | 6329 days | 100% |
| Ele | 10/10 | 6331 days | 100% |
| Bridget Cummins | 10/10 | 6337 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 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 | -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.