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 | 3570 days | 100% |
| Bruce B | 10/10 | 3598 days | 96% |
| barry aling | 10/10 | 3598 days | 96% |
| luiz montanari | 10/10 | 3629 days | 93% |
| EMMANUEL DIAS DA SILVA | 10/10 | 3660 days | 89% |
| Philip Gattey | 9/10 | 3660 days | 88% |
| Ch. Verling | 10/10 | 3690 days | 85% |
| Ulises Guevara | 10/10 | 3690 days | 85% |
| Dusty | 10/10 | 3690 days | 85% |
| Sandra Downie | 10/10 | 3994 days | 46% |
| Gisle Forseth | 9/10 | 4025 days | 42% |
| Asmawi Wahab | 10/10 | 4300 days | 7% |
| Shelli Leverty | 10/10 | 4300 days | 7% |
| Doug Hamerton | 10/10 | 4300 days | 7% |
| Becky Ivers | 10/10 | 4328 days | 4% |
| Mark Stanford | 10/10 | 4328 days | 4% |
| Lesley barber | 10/10 | 4359 days | 0% |
| Barryatkinson | 10/10 | 4359 days | 0% |
| DonKendra1 | 10/10 | 4451 days | 62% |
| Bushy | 10/10 | 4604 days | 62% |
| Calypso | 10/10 | 4634 days | 62% |
| yromanec | 10/10 | 4634 days | 62% |
| ladyharley | 10/10 | 4665 days | 62% |
| ChrisW | 10/10 | 4665 days | 62% |
| oldbiker | 10/10 | 4665 days | 62% |
| TheHoon | 10/10 | 4665 days | 62% |
| Banana | 10/10 | 4694 days | 62% |
| monakeehn | 10/10 | 4694 days | 62% |
| fdjavid | 10/10 | 4694 days | 62% |
| websterau | 9/10 | 4694 days | 61% |
| Dumyati | 10/10 | 4694 days | 62% |
| holidaze28 | 10/10 | 4725 days | 62% |
| michaelclout | 10/10 | 4725 days | 62% |
| ZeroID | 10/10 | 4725 days | 62% |
| donald | 10/10 | 4725 days | 62% |
| mulhooligan | 10/10 | 4725 days | 62% |
| Stanton | 10/10 | 4725 days | 62% |
| kakapo66 | 10/10 | 4756 days | 62% |
| HughConnor | 10/10 | 4756 days | 62% |
| ruudie012 | 10/10 | 4756 days | 62% |
| lynne_florence | 10/10 | 4756 days | 62% |
| johnnyr | 10/10 | 4756 days | 62% |
| pro213 | 10/10 | 4756 days | 62% |
| chrissywatson1711 | 10/10 | 4756 days | 62% |
| pahoia | 10/10 | 4756 days | 62% |
| Iand | 10/10 | 4756 days | 62% |
| jillowen | 9/10 | 4756 days | 61% |
| AbeB | 10/10 | 4786 days | 62% |
| mikereid | 10/10 | 4786 days | 62% |
| Cmax | 10/10 | 4817 days | 62% |
| gnh2011 | 9/10 | 4817 days | 61% |
| taylaw | 10/10 | 4817 days | 62% |
| mariarivas | 10/10 | 4817 days | 62% |
| flippy0 | 10/10 | 4847 days | 62% |
| squids12 | 10/10 | 4939 days | 62% |
| Rosco | 9/10 | 5000 days | 61% |
| blahutp | 9/10 | 5000 days | 61% |
| mrkunz | 10/10 | 5000 days | 62% |
| clouddreamer | 10/10 | 5000 days | 62% |
| May | 10/10 | 5000 days | 62% |
| mitchaoc | 10/10 | 5031 days | 62% |
| Welshy01 | 10/10 | 5031 days | 62% |
| pamc | 10/10 | 5031 days | 62% |
| zaphood | 10/10 | 5031 days | 62% |
| cruisequeens | 10/10 | 5059 days | 62% |
| adriennevergos | 10/10 | 5059 days | 62% |
| damondosterhus | 10/10 | 5059 days | 62% |
| janetc260 | 10/10 | 5059 days | 62% |
| marpet | 10/10 | 5090 days | 62% |
| roofie | 10/10 | 5090 days | 62% |
| musicman | 10/10 | 5090 days | 62% |
| Merran | 10/10 | 5090 days | 62% |
| traceymarcus1 | 10/10 | 5090 days | 62% |
| Budley1 | 10/10 | 5121 days | 62% |
| vjr | 10/10 | 5121 days | 62% |
| DukeMatthews | 10/10 | 5121 days | 62% |
| hellsknipe356 | 10/10 | 5182 days | 62% |
| KDStorey | 10/10 | 5182 days | 62% |
| robinson | 10/10 | 5182 days | 62% |
| JoeLeeKnipe | 10/10 | 5182 days | 62% |
| lstenhouse | 10/10 | 5212 days | 62% |
| doylouys | 10/10 | 5243 days | 62% |
| Jorgy | 10/10 | 5274 days | 62% |
| Phil Thurbon | 9/10 | 5365 days | 61% |
| awolnow | 10/10 | 5396 days | 62% |
| spb97 | 9/10 | 5396 days | 61% |
| stealhorsecowboy | 10/10 | 5396 days | 62% |
| smithy55 | 9/10 | 5396 days | 61% |
| fitbear | 9/10 | 5396 days | 61% |
| zebradiver | 8/10 | 5396 days | 61% |
| cowboyjohn | 10/10 | 5424 days | 62% |
| wahteh | 10/10 | 5424 days | 62% |
| tommarbru | 10/10 | 5424 days | 62% |
| Mathias | 10/10 | 5424 days | 62% |
| JParkinson | 10/10 | 5424 days | 62% |
| sinead drummy | 10/10 | 5455 days | 62% |
| philip andrew-artha | 10/10 | 5455 days | 62% |
| bmaier | 10/10 | 5455 days | 62% |
| alongthorn | 10/10 | 5455 days | 62% |
| KENMCD | 10/10 | 5455 days | 62% |
| kimreed | 10/10 | 5486 days | 62% |
| joshe051 | 10/10 | 5486 days | 62% |
| Travelling_Kiwi | 10/10 | 5486 days | 62% |
| John Stevens | 10/10 | 5516 days | 62% |
| big_rog | 10/10 | 5516 days | 62% |
| HairyHaggis | 10/10 | 5516 days | 62% |
| Mary Long | 10/10 | 5516 days | 62% |
| stegall | 10/10 | 5516 days | 62% |
| Maureen Lee | 10/10 | 5547 days | 62% |
| monkey | 10/10 | 5547 days | 62% |
| renaud bonnet | 10/10 | 5577 days | 62% |
| George Wheatley | 10/10 | 5700 days | 62% |
| eunie | 10/10 | 5730 days | 62% |
| antoinette | 10/10 | 5732 days | 62% |
| Bananna | 10/10 | 5742 days | 62% |
| Anne Cathala | 10/10 | 5743 days | 62% |
| gordy838 | 9/10 | 5751 days | 61% |
| Janet May | 9/10 | 5755 days | 61% |
| Chuffy57 | 10/10 | 5756 days | 62% |
| Tom Speed | 10/10 | 5761 days | 62% |
| Brenda | 10/10 | 5771 days | 62% |
| Jay & N | 10/10 | 5782 days | 36% |
| MoJo | 10/10 | 5789 days | 62% |
| Tomasz Trawniczek | 10/10 | 5789 days | 62% |
| David Lewis | 9/10 | 5804 days | 61% |
| andy Cant | 10/10 | 5805 days | 62% |
| Catherine Robinson | 10/10 | 5807 days | 62% |
| Samantha Fenton | 10/10 | 5812 days | 62% |
| Judy Macdonald | 10/10 | 5816 days | 62% |
| Allison | 10/10 | 5816 days | 36% |
| Gordon Lawrence | 10/10 | 5849 days | 62% |
| ivkemp | 10/10 | 5858 days | 62% |
| shonell | 10/10 | 5880 days | 62% |
| Aimee Marsh | 10/10 | 5882 days | 62% |
| Kathy Reily | 10/10 | 5885 days | 62% |
| CaptainObvious | 10/10 | 5893 days | 62% |
| Darren Rye | 10/10 | 5898 days | 62% |
| Dolphin | 10/10 | 5905 days | 62% |
| Robin | 10/10 | 5913 days | 62% |
| suedavies | 10/10 | 5914 days | 62% |
| Claire O'Donoghue | 10/10 | 5920 days | 62% |
| Mike | 10/10 | 5920 days | 62% |
| barbara hunn | 8/10 | 5925 days | 61% |
| Mike Morgan | 10/10 | 5926 days | 62% |
| Matt Cross | 10/10 | 5928 days | 62% |
| Denelle Adams | 10/10 | 5932 days | 62% |
| Belinda Keys | 10/10 | 5934 days | 62% |
| Tom Gordon | 9/10 | 5934 days | 61% |
| ashos | 10/10 | 5934 days | 62% |
| hottie | 9/10 | 5934 days | 61% |
| Karen Gibson | 10/10 | 5934 days | 62% |
| Michelle Mulgrew | 10/10 | 5941 days | 62% |
| thehammer | 10/10 | 5955 days | 62% |
| Ele | 10/10 | 5956 days | 62% |
| Bridget Cummins | 10/10 | 5962 days | 62% |
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
-4.07% 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 | -4.01% |
| 198 | -4.03% |
| 199 | -4.05% |
| 200 | -4.07% |
| 201 | -4.09% |
| 202 | -4.11% |
| 203 | -4.13% |
| … | … |
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.