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 | 4089 days | 35% |
| Bruce B | 10/10 | 4117 days | 27% |
| barry aling | 10/10 | 4117 days | 27% |
| luiz montanari | 10/10 | 4148 days | 18% |
| EMMANUEL DIAS DA SILVA | 10/10 | 4179 days | 9% |
| Philip Gattey | 9/10 | 4179 days | 8% |
| Ch. Verling | 10/10 | 4209 days | 0% |
| Ulises Guevara | 10/10 | 4209 days | 0% |
| Dusty | 10/10 | 4209 days | 0% |
| Sandra Downie | 10/10 | 4513 days | 100% |
| Gisle Forseth | 9/10 | 4544 days | 99% |
| Asmawi Wahab | 10/10 | 4819 days | 100% |
| Shelli Leverty | 10/10 | 4819 days | 100% |
| Doug Hamerton | 10/10 | 4819 days | 100% |
| Becky Ivers | 10/10 | 4847 days | 100% |
| Mark Stanford | 10/10 | 4847 days | 100% |
| Lesley barber | 10/10 | 4878 days | 100% |
| Barryatkinson | 10/10 | 4878 days | 100% |
| DonKendra1 | 10/10 | 4970 days | 100% |
| Bushy | 10/10 | 5123 days | 100% |
| Calypso | 10/10 | 5153 days | 100% |
| yromanec | 10/10 | 5153 days | 100% |
| ladyharley | 10/10 | 5184 days | 100% |
| ChrisW | 10/10 | 5184 days | 100% |
| oldbiker | 10/10 | 5184 days | 100% |
| TheHoon | 10/10 | 5184 days | 100% |
| Banana | 10/10 | 5213 days | 100% |
| monakeehn | 10/10 | 5213 days | 100% |
| fdjavid | 10/10 | 5213 days | 100% |
| websterau | 9/10 | 5213 days | 99% |
| Dumyati | 10/10 | 5213 days | 100% |
| holidaze28 | 10/10 | 5244 days | 100% |
| michaelclout | 10/10 | 5244 days | 100% |
| ZeroID | 10/10 | 5244 days | 100% |
| donald | 10/10 | 5244 days | 100% |
| mulhooligan | 10/10 | 5244 days | 100% |
| Stanton | 10/10 | 5244 days | 100% |
| kakapo66 | 10/10 | 5275 days | 100% |
| HughConnor | 10/10 | 5275 days | 100% |
| ruudie012 | 10/10 | 5275 days | 100% |
| lynne_florence | 10/10 | 5275 days | 100% |
| johnnyr | 10/10 | 5275 days | 100% |
| pro213 | 10/10 | 5275 days | 100% |
| chrissywatson1711 | 10/10 | 5275 days | 100% |
| pahoia | 10/10 | 5275 days | 100% |
| Iand | 10/10 | 5275 days | 100% |
| jillowen | 9/10 | 5275 days | 99% |
| AbeB | 10/10 | 5305 days | 100% |
| mikereid | 10/10 | 5305 days | 100% |
| Cmax | 10/10 | 5336 days | 100% |
| gnh2011 | 9/10 | 5336 days | 99% |
| taylaw | 10/10 | 5336 days | 100% |
| mariarivas | 10/10 | 5336 days | 100% |
| flippy0 | 10/10 | 5366 days | 100% |
| squids12 | 10/10 | 5458 days | 100% |
| Rosco | 9/10 | 5519 days | 99% |
| blahutp | 9/10 | 5519 days | 99% |
| mrkunz | 10/10 | 5519 days | 100% |
| clouddreamer | 10/10 | 5519 days | 100% |
| May | 10/10 | 5519 days | 100% |
| mitchaoc | 10/10 | 5550 days | 100% |
| Welshy01 | 10/10 | 5550 days | 100% |
| pamc | 10/10 | 5550 days | 100% |
| zaphood | 10/10 | 5550 days | 100% |
| cruisequeens | 10/10 | 5578 days | 100% |
| adriennevergos | 10/10 | 5578 days | 100% |
| damondosterhus | 10/10 | 5578 days | 100% |
| janetc260 | 10/10 | 5578 days | 100% |
| marpet | 10/10 | 5609 days | 100% |
| roofie | 10/10 | 5609 days | 100% |
| musicman | 10/10 | 5609 days | 100% |
| Merran | 10/10 | 5609 days | 100% |
| traceymarcus1 | 10/10 | 5609 days | 100% |
| Budley1 | 10/10 | 5640 days | 100% |
| vjr | 10/10 | 5640 days | 100% |
| DukeMatthews | 10/10 | 5640 days | 100% |
| hellsknipe356 | 10/10 | 5701 days | 100% |
| KDStorey | 10/10 | 5701 days | 100% |
| robinson | 10/10 | 5701 days | 100% |
| JoeLeeKnipe | 10/10 | 5701 days | 100% |
| lstenhouse | 10/10 | 5731 days | 100% |
| doylouys | 10/10 | 5762 days | 100% |
| Jorgy | 10/10 | 5793 days | 100% |
| Phil Thurbon | 9/10 | 5884 days | 99% |
| awolnow | 10/10 | 5915 days | 100% |
| spb97 | 9/10 | 5915 days | 99% |
| stealhorsecowboy | 10/10 | 5915 days | 100% |
| smithy55 | 9/10 | 5915 days | 99% |
| fitbear | 9/10 | 5915 days | 99% |
| zebradiver | 8/10 | 5915 days | 97% |
| cowboyjohn | 10/10 | 5943 days | 100% |
| wahteh | 10/10 | 5943 days | 100% |
| tommarbru | 10/10 | 5943 days | 100% |
| Mathias | 10/10 | 5943 days | 100% |
| JParkinson | 10/10 | 5943 days | 100% |
| sinead drummy | 10/10 | 5974 days | 100% |
| philip andrew-artha | 10/10 | 5974 days | 100% |
| bmaier | 10/10 | 5974 days | 100% |
| alongthorn | 10/10 | 5974 days | 100% |
| KENMCD | 10/10 | 5974 days | 100% |
| kimreed | 10/10 | 6005 days | 100% |
| joshe051 | 10/10 | 6005 days | 100% |
| Travelling_Kiwi | 10/10 | 6005 days | 100% |
| John Stevens | 10/10 | 6035 days | 100% |
| big_rog | 10/10 | 6035 days | 100% |
| HairyHaggis | 10/10 | 6035 days | 100% |
| Mary Long | 10/10 | 6035 days | 100% |
| stegall | 10/10 | 6035 days | 100% |
| Maureen Lee | 10/10 | 6066 days | 100% |
| monkey | 10/10 | 6066 days | 100% |
| renaud bonnet | 10/10 | 6096 days | 100% |
| George Wheatley | 10/10 | 6219 days | 100% |
| eunie | 10/10 | 6249 days | 100% |
| antoinette | 10/10 | 6251 days | 100% |
| Bananna | 10/10 | 6260 days | 100% |
| Anne Cathala | 10/10 | 6262 days | 100% |
| gordy838 | 9/10 | 6270 days | 99% |
| Janet May | 9/10 | 6274 days | 99% |
| Chuffy57 | 10/10 | 6275 days | 100% |
| Tom Speed | 10/10 | 6280 days | 100% |
| Brenda | 10/10 | 6290 days | 100% |
| Jay & N | 10/10 | 6300 days | 40% |
| MoJo | 10/10 | 6308 days | 100% |
| Tomasz Trawniczek | 10/10 | 6308 days | 100% |
| David Lewis | 9/10 | 6322 days | 99% |
| andy Cant | 10/10 | 6323 days | 100% |
| Catherine Robinson | 10/10 | 6326 days | 100% |
| Samantha Fenton | 10/10 | 6331 days | 100% |
| Judy Macdonald | 10/10 | 6335 days | 100% |
| Allison | 10/10 | 6335 days | 40% |
| Gordon Lawrence | 10/10 | 6368 days | 100% |
| ivkemp | 10/10 | 6376 days | 100% |
| shonell | 10/10 | 6399 days | 100% |
| Aimee Marsh | 10/10 | 6400 days | 100% |
| Kathy Reily | 10/10 | 6404 days | 100% |
| CaptainObvious | 10/10 | 6412 days | 100% |
| Darren Rye | 10/10 | 6417 days | 100% |
| Dolphin | 10/10 | 6423 days | 100% |
| Robin | 10/10 | 6432 days | 100% |
| suedavies | 10/10 | 6432 days | 100% |
| Claire O'Donoghue | 10/10 | 6439 days | 100% |
| Mike | 10/10 | 6439 days | 100% |
| barbara hunn | 8/10 | 6444 days | 97% |
| Mike Morgan | 10/10 | 6445 days | 100% |
| Matt Cross | 10/10 | 6446 days | 100% |
| Denelle Adams | 10/10 | 6450 days | 100% |
| Belinda Keys | 10/10 | 6452 days | 100% |
| Tom Gordon | 9/10 | 6452 days | 99% |
| ashos | 10/10 | 6452 days | 100% |
| hottie | 9/10 | 6452 days | 99% |
| Karen Gibson | 10/10 | 6452 days | 100% |
| Michelle Mulgrew | 10/10 | 6460 days | 100% |
| thehammer | 10/10 | 6474 days | 100% |
| Ele | 10/10 | 6475 days | 100% |
| Bridget Cummins | 10/10 | 6481 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
-2.89% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 87 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 | -2.85% |
| 198 | -2.86% |
| 199 | -2.88% |
| 200 | -2.89% |
| 201 | -2.90% |
| 202 | -2.92% |
| 203 | -2.93% |
| … | … |
Balancing Adjustment
0.36% 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.