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
98.71%
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 | 4250 days | 24% |
| Bruce B | 10/10 | 4278 days | 18% |
| barry aling | 10/10 | 4278 days | 18% |
| luiz montanari | 10/10 | 4309 days | 12% |
| EMMANUEL DIAS DA SILVA | 10/10 | 4340 days | 6% |
| Philip Gattey | 9/10 | 4340 days | 6% |
| Ch. Verling | 10/10 | 4370 days | 0% |
| Ulises Guevara | 10/10 | 4370 days | 0% |
| Dusty | 10/10 | 4370 days | 0% |
| Sandra Downie | 10/10 | 4674 days | 100% |
| Gisle Forseth | 9/10 | 4705 days | 99% |
| Asmawi Wahab | 10/10 | 4980 days | 100% |
| Shelli Leverty | 10/10 | 4980 days | 100% |
| Doug Hamerton | 10/10 | 4980 days | 100% |
| Becky Ivers | 10/10 | 5008 days | 100% |
| Mark Stanford | 10/10 | 5008 days | 100% |
| Lesley barber | 10/10 | 5039 days | 100% |
| Barryatkinson | 10/10 | 5039 days | 100% |
| DonKendra1 | 10/10 | 5131 days | 100% |
| Bushy | 10/10 | 5284 days | 100% |
| Calypso | 10/10 | 5314 days | 100% |
| yromanec | 10/10 | 5314 days | 100% |
| ladyharley | 10/10 | 5345 days | 100% |
| ChrisW | 10/10 | 5345 days | 100% |
| oldbiker | 10/10 | 5345 days | 100% |
| TheHoon | 10/10 | 5345 days | 100% |
| Banana | 10/10 | 5374 days | 100% |
| monakeehn | 10/10 | 5374 days | 100% |
| fdjavid | 10/10 | 5374 days | 100% |
| websterau | 9/10 | 5374 days | 99% |
| Dumyati | 10/10 | 5374 days | 100% |
| holidaze28 | 10/10 | 5405 days | 100% |
| michaelclout | 10/10 | 5405 days | 100% |
| ZeroID | 10/10 | 5405 days | 100% |
| donald | 10/10 | 5405 days | 100% |
| mulhooligan | 10/10 | 5405 days | 100% |
| Stanton | 10/10 | 5405 days | 100% |
| kakapo66 | 10/10 | 5436 days | 100% |
| HughConnor | 10/10 | 5436 days | 100% |
| ruudie012 | 10/10 | 5436 days | 100% |
| lynne_florence | 10/10 | 5436 days | 100% |
| johnnyr | 10/10 | 5436 days | 100% |
| pro213 | 10/10 | 5436 days | 100% |
| chrissywatson1711 | 10/10 | 5436 days | 100% |
| pahoia | 10/10 | 5436 days | 100% |
| Iand | 10/10 | 5436 days | 100% |
| jillowen | 9/10 | 5436 days | 99% |
| AbeB | 10/10 | 5466 days | 100% |
| mikereid | 10/10 | 5466 days | 100% |
| Cmax | 10/10 | 5497 days | 100% |
| gnh2011 | 9/10 | 5497 days | 99% |
| taylaw | 10/10 | 5497 days | 100% |
| mariarivas | 10/10 | 5497 days | 100% |
| flippy0 | 10/10 | 5527 days | 100% |
| squids12 | 10/10 | 5619 days | 100% |
| Rosco | 9/10 | 5680 days | 99% |
| blahutp | 9/10 | 5680 days | 99% |
| mrkunz | 10/10 | 5680 days | 100% |
| clouddreamer | 10/10 | 5680 days | 100% |
| May | 10/10 | 5680 days | 100% |
| mitchaoc | 10/10 | 5711 days | 100% |
| Welshy01 | 10/10 | 5711 days | 100% |
| pamc | 10/10 | 5711 days | 100% |
| zaphood | 10/10 | 5711 days | 100% |
| cruisequeens | 10/10 | 5739 days | 100% |
| adriennevergos | 10/10 | 5739 days | 100% |
| damondosterhus | 10/10 | 5739 days | 100% |
| janetc260 | 10/10 | 5739 days | 100% |
| marpet | 10/10 | 5770 days | 100% |
| roofie | 10/10 | 5770 days | 100% |
| musicman | 10/10 | 5770 days | 100% |
| Merran | 10/10 | 5770 days | 100% |
| traceymarcus1 | 10/10 | 5770 days | 100% |
| Budley1 | 10/10 | 5801 days | 100% |
| vjr | 10/10 | 5801 days | 100% |
| DukeMatthews | 10/10 | 5801 days | 100% |
| hellsknipe356 | 10/10 | 5862 days | 100% |
| KDStorey | 10/10 | 5862 days | 100% |
| robinson | 10/10 | 5862 days | 100% |
| JoeLeeKnipe | 10/10 | 5862 days | 100% |
| lstenhouse | 10/10 | 5892 days | 100% |
| doylouys | 10/10 | 5923 days | 100% |
| Jorgy | 10/10 | 5954 days | 100% |
| Phil Thurbon | 9/10 | 6045 days | 99% |
| awolnow | 10/10 | 6076 days | 100% |
| spb97 | 9/10 | 6076 days | 99% |
| stealhorsecowboy | 10/10 | 6076 days | 100% |
| smithy55 | 9/10 | 6076 days | 99% |
| fitbear | 9/10 | 6076 days | 99% |
| zebradiver | 8/10 | 6076 days | 98% |
| cowboyjohn | 10/10 | 6104 days | 100% |
| wahteh | 10/10 | 6104 days | 100% |
| tommarbru | 10/10 | 6104 days | 100% |
| Mathias | 10/10 | 6104 days | 100% |
| JParkinson | 10/10 | 6104 days | 100% |
| sinead drummy | 10/10 | 6135 days | 100% |
| philip andrew-artha | 10/10 | 6135 days | 100% |
| bmaier | 10/10 | 6135 days | 100% |
| alongthorn | 10/10 | 6135 days | 100% |
| KENMCD | 10/10 | 6135 days | 100% |
| kimreed | 10/10 | 6166 days | 100% |
| joshe051 | 10/10 | 6166 days | 100% |
| Travelling_Kiwi | 10/10 | 6166 days | 100% |
| John Stevens | 10/10 | 6196 days | 100% |
| big_rog | 10/10 | 6196 days | 100% |
| HairyHaggis | 10/10 | 6196 days | 100% |
| Mary Long | 10/10 | 6196 days | 100% |
| stegall | 10/10 | 6196 days | 100% |
| Maureen Lee | 10/10 | 6227 days | 100% |
| monkey | 10/10 | 6227 days | 100% |
| renaud bonnet | 10/10 | 6257 days | 100% |
| George Wheatley | 10/10 | 6380 days | 100% |
| eunie | 10/10 | 6410 days | 100% |
| antoinette | 10/10 | 6412 days | 100% |
| Bananna | 10/10 | 6422 days | 100% |
| Anne Cathala | 10/10 | 6423 days | 100% |
| gordy838 | 9/10 | 6431 days | 99% |
| Janet May | 9/10 | 6435 days | 99% |
| Chuffy57 | 10/10 | 6436 days | 100% |
| Tom Speed | 10/10 | 6441 days | 100% |
| Brenda | 10/10 | 6451 days | 100% |
| Jay & N | 10/10 | 6462 days | 60% |
| MoJo | 10/10 | 6469 days | 100% |
| Tomasz Trawniczek | 10/10 | 6469 days | 100% |
| David Lewis | 9/10 | 6484 days | 99% |
| andy Cant | 10/10 | 6485 days | 100% |
| Catherine Robinson | 10/10 | 6487 days | 100% |
| Samantha Fenton | 10/10 | 6492 days | 100% |
| Judy Macdonald | 10/10 | 6496 days | 100% |
| Allison | 10/10 | 6496 days | 60% |
| Gordon Lawrence | 10/10 | 6529 days | 100% |
| ivkemp | 10/10 | 6538 days | 100% |
| shonell | 10/10 | 6560 days | 100% |
| Aimee Marsh | 10/10 | 6562 days | 100% |
| Kathy Reily | 10/10 | 6565 days | 100% |
| CaptainObvious | 10/10 | 6573 days | 100% |
| Darren Rye | 10/10 | 6578 days | 100% |
| Dolphin | 10/10 | 6585 days | 100% |
| Robin | 10/10 | 6593 days | 100% |
| suedavies | 10/10 | 6594 days | 100% |
| Claire O'Donoghue | 10/10 | 6600 days | 100% |
| Mike | 10/10 | 6600 days | 100% |
| barbara hunn | 8/10 | 6605 days | 98% |
| Mike Morgan | 10/10 | 6606 days | 100% |
| Matt Cross | 10/10 | 6608 days | 100% |
| Denelle Adams | 10/10 | 6612 days | 100% |
| Belinda Keys | 10/10 | 6614 days | 100% |
| Tom Gordon | 9/10 | 6614 days | 99% |
| ashos | 10/10 | 6614 days | 100% |
| hottie | 9/10 | 6614 days | 99% |
| Karen Gibson | 10/10 | 6614 days | 100% |
| Michelle Mulgrew | 10/10 | 6621 days | 100% |
| thehammer | 10/10 | 6635 days | 100% |
| Ele | 10/10 | 6636 days | 100% |
| Bridget Cummins | 10/10 | 6642 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
-3.64% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 57 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 | -3.59% |
| 198 | -3.60% |
| 199 | -3.62% |
| 200 | -3.64% |
| 201 | -3.66% |
| 202 | -3.68% |
| 203 | -3.70% |
| … | … |
Balancing Adjustment
0.43% 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
96%
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.