Hi, 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
98.69%
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 | 3552 days | 100% |
| Bruce B | 10/10 | 3580 days | 96% |
| barry aling | 10/10 | 3580 days | 96% |
| luiz montanari | 10/10 | 3611 days | 93% |
| EMMANUEL DIAS DA SILVA | 10/10 | 3642 days | 89% |
| Philip Gattey | 9/10 | 3642 days | 88% |
| Ch. Verling | 10/10 | 3672 days | 85% |
| Ulises Guevara | 10/10 | 3672 days | 85% |
| Dusty | 10/10 | 3672 days | 85% |
| Sandra Downie | 10/10 | 3977 days | 46% |
| Gisle Forseth | 9/10 | 4008 days | 42% |
| Asmawi Wahab | 10/10 | 4283 days | 7% |
| Shelli Leverty | 10/10 | 4283 days | 7% |
| Doug Hamerton | 10/10 | 4283 days | 7% |
| Becky Ivers | 10/10 | 4311 days | 4% |
| Mark Stanford | 10/10 | 4311 days | 4% |
| Lesley barber | 10/10 | 4342 days | 0% |
| Barryatkinson | 10/10 | 4342 days | 0% |
| DonKendra1 | 10/10 | 4434 days | 60% |
| Bushy | 10/10 | 4586 days | 60% |
| Calypso | 10/10 | 4617 days | 60% |
| yromanec | 10/10 | 4617 days | 60% |
| ladyharley | 10/10 | 4648 days | 60% |
| ChrisW | 10/10 | 4648 days | 60% |
| oldbiker | 10/10 | 4648 days | 60% |
| TheHoon | 10/10 | 4648 days | 60% |
| Banana | 10/10 | 4677 days | 60% |
| monakeehn | 10/10 | 4677 days | 60% |
| fdjavid | 10/10 | 4677 days | 60% |
| websterau | 9/10 | 4677 days | 59% |
| Dumyati | 10/10 | 4677 days | 60% |
| holidaze28 | 10/10 | 4708 days | 60% |
| michaelclout | 10/10 | 4708 days | 60% |
| ZeroID | 10/10 | 4708 days | 60% |
| donald | 10/10 | 4708 days | 60% |
| mulhooligan | 10/10 | 4708 days | 60% |
| Stanton | 10/10 | 4708 days | 60% |
| kakapo66 | 10/10 | 4739 days | 60% |
| HughConnor | 10/10 | 4739 days | 60% |
| ruudie012 | 10/10 | 4739 days | 60% |
| lynne_florence | 10/10 | 4739 days | 60% |
| johnnyr | 10/10 | 4739 days | 60% |
| pro213 | 10/10 | 4739 days | 60% |
| chrissywatson1711 | 10/10 | 4739 days | 60% |
| pahoia | 10/10 | 4739 days | 60% |
| Iand | 10/10 | 4739 days | 60% |
| jillowen | 9/10 | 4739 days | 59% |
| AbeB | 10/10 | 4769 days | 60% |
| mikereid | 10/10 | 4769 days | 60% |
| Cmax | 10/10 | 4800 days | 60% |
| gnh2011 | 9/10 | 4800 days | 59% |
| taylaw | 10/10 | 4800 days | 60% |
| mariarivas | 10/10 | 4800 days | 60% |
| flippy0 | 10/10 | 4829 days | 60% |
| squids12 | 10/10 | 4921 days | 60% |
| Rosco | 9/10 | 4983 days | 59% |
| blahutp | 9/10 | 4983 days | 59% |
| mrkunz | 10/10 | 4983 days | 60% |
| clouddreamer | 10/10 | 4983 days | 60% |
| May | 10/10 | 4983 days | 60% |
| mitchaoc | 10/10 | 5014 days | 60% |
| Welshy01 | 10/10 | 5014 days | 60% |
| pamc | 10/10 | 5014 days | 60% |
| zaphood | 10/10 | 5014 days | 60% |
| cruisequeens | 10/10 | 5042 days | 60% |
| adriennevergos | 10/10 | 5042 days | 60% |
| damondosterhus | 10/10 | 5042 days | 60% |
| janetc260 | 10/10 | 5042 days | 60% |
| marpet | 10/10 | 5073 days | 60% |
| roofie | 10/10 | 5073 days | 60% |
| musicman | 10/10 | 5073 days | 60% |
| Merran | 10/10 | 5073 days | 60% |
| traceymarcus1 | 10/10 | 5073 days | 60% |
| Budley1 | 10/10 | 5104 days | 60% |
| vjr | 10/10 | 5104 days | 60% |
| DukeMatthews | 10/10 | 5104 days | 60% |
| hellsknipe356 | 10/10 | 5165 days | 60% |
| KDStorey | 10/10 | 5165 days | 60% |
| robinson | 10/10 | 5165 days | 60% |
| JoeLeeKnipe | 10/10 | 5165 days | 60% |
| lstenhouse | 10/10 | 5194 days | 60% |
| doylouys | 10/10 | 5225 days | 60% |
| Jorgy | 10/10 | 5256 days | 60% |
| Phil Thurbon | 9/10 | 5348 days | 59% |
| awolnow | 10/10 | 5379 days | 60% |
| spb97 | 9/10 | 5379 days | 59% |
| stealhorsecowboy | 10/10 | 5379 days | 60% |
| smithy55 | 9/10 | 5379 days | 59% |
| fitbear | 9/10 | 5379 days | 59% |
| zebradiver | 8/10 | 5379 days | 59% |
| cowboyjohn | 10/10 | 5407 days | 60% |
| wahteh | 10/10 | 5407 days | 60% |
| tommarbru | 10/10 | 5407 days | 60% |
| Mathias | 10/10 | 5407 days | 60% |
| JParkinson | 10/10 | 5407 days | 60% |
| sinead drummy | 10/10 | 5438 days | 60% |
| philip andrew-artha | 10/10 | 5438 days | 60% |
| bmaier | 10/10 | 5438 days | 60% |
| alongthorn | 10/10 | 5438 days | 60% |
| KENMCD | 10/10 | 5438 days | 60% |
| kimreed | 10/10 | 5469 days | 60% |
| joshe051 | 10/10 | 5469 days | 60% |
| Travelling_Kiwi | 10/10 | 5469 days | 60% |
| John Stevens | 10/10 | 5499 days | 60% |
| big_rog | 10/10 | 5499 days | 60% |
| HairyHaggis | 10/10 | 5499 days | 60% |
| Mary Long | 10/10 | 5499 days | 60% |
| stegall | 10/10 | 5499 days | 60% |
| Maureen Lee | 10/10 | 5530 days | 60% |
| monkey | 10/10 | 5530 days | 60% |
| renaud bonnet | 10/10 | 5559 days | 60% |
| George Wheatley | 10/10 | 5682 days | 60% |
| eunie | 10/10 | 5713 days | 60% |
| antoinette | 10/10 | 5714 days | 60% |
| Bananna | 10/10 | 5724 days | 60% |
| Anne Cathala | 10/10 | 5726 days | 60% |
| gordy838 | 9/10 | 5734 days | 59% |
| Janet May | 9/10 | 5738 days | 59% |
| Chuffy57 | 10/10 | 5738 days | 60% |
| Tom Speed | 10/10 | 5744 days | 60% |
| Brenda | 10/10 | 5753 days | 60% |
| Jay & N | 10/10 | 5764 days | 34% |
| MoJo | 10/10 | 5772 days | 60% |
| Tomasz Trawniczek | 10/10 | 5772 days | 60% |
| David Lewis | 9/10 | 5786 days | 59% |
| andy Cant | 10/10 | 5787 days | 60% |
| Catherine Robinson | 10/10 | 5790 days | 60% |
| Samantha Fenton | 10/10 | 5795 days | 60% |
| Judy Macdonald | 10/10 | 5798 days | 60% |
| Allison | 10/10 | 5799 days | 34% |
| Gordon Lawrence | 10/10 | 5831 days | 60% |
| ivkemp | 10/10 | 5840 days | 60% |
| shonell | 10/10 | 5863 days | 60% |
| Aimee Marsh | 10/10 | 5864 days | 60% |
| Kathy Reily | 10/10 | 5868 days | 60% |
| CaptainObvious | 10/10 | 5876 days | 60% |
| Darren Rye | 10/10 | 5880 days | 60% |
| Dolphin | 10/10 | 5887 days | 60% |
| Robin | 10/10 | 5896 days | 60% |
| suedavies | 10/10 | 5896 days | 60% |
| Claire O'Donoghue | 10/10 | 5902 days | 60% |
| Mike | 10/10 | 5902 days | 60% |
| barbara hunn | 8/10 | 5907 days | 59% |
| Mike Morgan | 10/10 | 5908 days | 60% |
| Matt Cross | 10/10 | 5910 days | 60% |
| Denelle Adams | 10/10 | 5914 days | 60% |
| Belinda Keys | 10/10 | 5916 days | 60% |
| Tom Gordon | 9/10 | 5916 days | 59% |
| ashos | 10/10 | 5916 days | 60% |
| hottie | 9/10 | 5916 days | 59% |
| Karen Gibson | 10/10 | 5916 days | 60% |
| Michelle Mulgrew | 10/10 | 5923 days | 60% |
| thehammer | 10/10 | 5937 days | 60% |
| Ele | 10/10 | 5938 days | 60% |
| Bridget Cummins | 10/10 | 5944 days | 60% |
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 43 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.