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 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
98.70%
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 | 3617 days | 100% |
| Bruce B | 10/10 | 3645 days | 96% |
| barry aling | 10/10 | 3645 days | 96% |
| luiz montanari | 10/10 | 3676 days | 92% |
| EMMANUEL DIAS DA SILVA | 10/10 | 3707 days | 88% |
| Philip Gattey | 9/10 | 3707 days | 87% |
| Ch. Verling | 10/10 | 3737 days | 84% |
| Ulises Guevara | 10/10 | 3737 days | 84% |
| Dusty | 10/10 | 3737 days | 84% |
| Sandra Downie | 10/10 | 4041 days | 44% |
| Gisle Forseth | 9/10 | 4072 days | 40% |
| Asmawi Wahab | 10/10 | 4347 days | 4% |
| Shelli Leverty | 10/10 | 4347 days | 4% |
| Doug Hamerton | 10/10 | 4347 days | 4% |
| Becky Ivers | 10/10 | 4375 days | 0% |
| Mark Stanford | 10/10 | 4375 days | 0% |
| Lesley barber | 10/10 | 4406 days | 67% |
| Barryatkinson | 10/10 | 4406 days | 67% |
| DonKendra1 | 10/10 | 4498 days | 67% |
| Bushy | 10/10 | 4651 days | 67% |
| Calypso | 10/10 | 4681 days | 67% |
| yromanec | 10/10 | 4681 days | 67% |
| ladyharley | 10/10 | 4712 days | 67% |
| ChrisW | 10/10 | 4712 days | 67% |
| oldbiker | 10/10 | 4712 days | 67% |
| TheHoon | 10/10 | 4712 days | 67% |
| Banana | 10/10 | 4741 days | 67% |
| monakeehn | 10/10 | 4741 days | 67% |
| fdjavid | 10/10 | 4741 days | 67% |
| websterau | 9/10 | 4741 days | 66% |
| Dumyati | 10/10 | 4741 days | 67% |
| holidaze28 | 10/10 | 4772 days | 67% |
| michaelclout | 10/10 | 4772 days | 67% |
| ZeroID | 10/10 | 4772 days | 67% |
| donald | 10/10 | 4772 days | 67% |
| mulhooligan | 10/10 | 4772 days | 67% |
| Stanton | 10/10 | 4772 days | 67% |
| kakapo66 | 10/10 | 4803 days | 67% |
| HughConnor | 10/10 | 4803 days | 67% |
| ruudie012 | 10/10 | 4803 days | 67% |
| lynne_florence | 10/10 | 4803 days | 67% |
| johnnyr | 10/10 | 4803 days | 67% |
| pro213 | 10/10 | 4803 days | 67% |
| chrissywatson1711 | 10/10 | 4803 days | 67% |
| pahoia | 10/10 | 4803 days | 67% |
| Iand | 10/10 | 4803 days | 67% |
| jillowen | 9/10 | 4803 days | 66% |
| AbeB | 10/10 | 4833 days | 67% |
| mikereid | 10/10 | 4833 days | 67% |
| Cmax | 10/10 | 4864 days | 67% |
| gnh2011 | 9/10 | 4864 days | 66% |
| taylaw | 10/10 | 4864 days | 67% |
| mariarivas | 10/10 | 4864 days | 67% |
| flippy0 | 10/10 | 4894 days | 67% |
| squids12 | 10/10 | 4986 days | 67% |
| Rosco | 9/10 | 5047 days | 66% |
| blahutp | 9/10 | 5047 days | 66% |
| mrkunz | 10/10 | 5047 days | 67% |
| clouddreamer | 10/10 | 5047 days | 67% |
| May | 10/10 | 5047 days | 67% |
| mitchaoc | 10/10 | 5078 days | 67% |
| Welshy01 | 10/10 | 5078 days | 67% |
| pamc | 10/10 | 5078 days | 67% |
| zaphood | 10/10 | 5078 days | 67% |
| cruisequeens | 10/10 | 5106 days | 67% |
| adriennevergos | 10/10 | 5106 days | 67% |
| damondosterhus | 10/10 | 5106 days | 67% |
| janetc260 | 10/10 | 5106 days | 67% |
| marpet | 10/10 | 5137 days | 67% |
| roofie | 10/10 | 5137 days | 67% |
| musicman | 10/10 | 5137 days | 67% |
| Merran | 10/10 | 5137 days | 67% |
| traceymarcus1 | 10/10 | 5137 days | 67% |
| Budley1 | 10/10 | 5168 days | 67% |
| vjr | 10/10 | 5168 days | 67% |
| DukeMatthews | 10/10 | 5168 days | 67% |
| hellsknipe356 | 10/10 | 5229 days | 67% |
| KDStorey | 10/10 | 5229 days | 67% |
| robinson | 10/10 | 5229 days | 67% |
| JoeLeeKnipe | 10/10 | 5229 days | 67% |
| lstenhouse | 10/10 | 5259 days | 67% |
| doylouys | 10/10 | 5290 days | 67% |
| Jorgy | 10/10 | 5321 days | 67% |
| Phil Thurbon | 9/10 | 5412 days | 66% |
| awolnow | 10/10 | 5443 days | 67% |
| spb97 | 9/10 | 5443 days | 66% |
| stealhorsecowboy | 10/10 | 5443 days | 67% |
| smithy55 | 9/10 | 5443 days | 66% |
| fitbear | 9/10 | 5443 days | 66% |
| zebradiver | 8/10 | 5443 days | 65% |
| cowboyjohn | 10/10 | 5471 days | 67% |
| wahteh | 10/10 | 5471 days | 67% |
| tommarbru | 10/10 | 5471 days | 67% |
| Mathias | 10/10 | 5471 days | 67% |
| JParkinson | 10/10 | 5471 days | 67% |
| sinead drummy | 10/10 | 5502 days | 67% |
| philip andrew-artha | 10/10 | 5502 days | 67% |
| bmaier | 10/10 | 5502 days | 67% |
| alongthorn | 10/10 | 5502 days | 67% |
| KENMCD | 10/10 | 5502 days | 67% |
| kimreed | 10/10 | 5533 days | 67% |
| joshe051 | 10/10 | 5533 days | 67% |
| Travelling_Kiwi | 10/10 | 5533 days | 67% |
| John Stevens | 10/10 | 5563 days | 67% |
| big_rog | 10/10 | 5563 days | 67% |
| HairyHaggis | 10/10 | 5563 days | 67% |
| Mary Long | 10/10 | 5563 days | 67% |
| stegall | 10/10 | 5563 days | 67% |
| Maureen Lee | 10/10 | 5594 days | 67% |
| monkey | 10/10 | 5594 days | 67% |
| renaud bonnet | 10/10 | 5624 days | 67% |
| George Wheatley | 10/10 | 5747 days | 67% |
| eunie | 10/10 | 5777 days | 67% |
| antoinette | 10/10 | 5779 days | 67% |
| Bananna | 10/10 | 5788 days | 67% |
| Anne Cathala | 10/10 | 5790 days | 67% |
| gordy838 | 9/10 | 5798 days | 66% |
| Janet May | 9/10 | 5802 days | 66% |
| Chuffy57 | 10/10 | 5803 days | 67% |
| Tom Speed | 10/10 | 5808 days | 67% |
| Brenda | 10/10 | 5818 days | 67% |
| Jay & N | 10/10 | 5829 days | 40% |
| MoJo | 10/10 | 5836 days | 67% |
| Tomasz Trawniczek | 10/10 | 5836 days | 67% |
| David Lewis | 9/10 | 5850 days | 66% |
| andy Cant | 10/10 | 5852 days | 67% |
| Catherine Robinson | 10/10 | 5854 days | 67% |
| Samantha Fenton | 10/10 | 5859 days | 67% |
| Judy Macdonald | 10/10 | 5863 days | 67% |
| Allison | 10/10 | 5863 days | 40% |
| Gordon Lawrence | 10/10 | 5896 days | 67% |
| ivkemp | 10/10 | 5905 days | 67% |
| shonell | 10/10 | 5927 days | 67% |
| Aimee Marsh | 10/10 | 5928 days | 67% |
| Kathy Reily | 10/10 | 5932 days | 67% |
| CaptainObvious | 10/10 | 5940 days | 67% |
| Darren Rye | 10/10 | 5945 days | 67% |
| Dolphin | 10/10 | 5952 days | 67% |
| Robin | 10/10 | 5960 days | 67% |
| suedavies | 10/10 | 5961 days | 67% |
| Claire O'Donoghue | 10/10 | 5967 days | 67% |
| Mike | 10/10 | 5967 days | 67% |
| barbara hunn | 8/10 | 5972 days | 65% |
| Mike Morgan | 10/10 | 5973 days | 67% |
| Matt Cross | 10/10 | 5975 days | 67% |
| Denelle Adams | 10/10 | 5978 days | 67% |
| Belinda Keys | 10/10 | 5980 days | 67% |
| Tom Gordon | 9/10 | 5980 days | 66% |
| ashos | 10/10 | 5980 days | 67% |
| hottie | 9/10 | 5980 days | 66% |
| Karen Gibson | 10/10 | 5980 days | 67% |
| Michelle Mulgrew | 10/10 | 5988 days | 67% |
| thehammer | 10/10 | 6002 days | 67% |
| Ele | 10/10 | 6003 days | 67% |
| Bridget Cummins | 10/10 | 6009 days | 67% |
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
-4.12% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 48 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 | -4.06% |
| 198 | -4.08% |
| 199 | -4.10% |
| 200 | -4.12% |
| 201 | -4.14% |
| 202 | -4.16% |
| 203 | -4.18% |
| … | … |
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.