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
98.71%
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 | 4189 days | 27% |
| Bruce B | 10/10 | 4217 days | 21% |
| barry aling | 10/10 | 4217 days | 21% |
| luiz montanari | 10/10 | 4248 days | 14% |
| EMMANUEL DIAS DA SILVA | 10/10 | 4279 days | 7% |
| Philip Gattey | 9/10 | 4279 days | 7% |
| Ch. Verling | 10/10 | 4309 days | 0% |
| Ulises Guevara | 10/10 | 4309 days | 0% |
| Dusty | 10/10 | 4309 days | 0% |
| Sandra Downie | 10/10 | 4613 days | 100% |
| Gisle Forseth | 9/10 | 4644 days | 99% |
| Asmawi Wahab | 10/10 | 4919 days | 100% |
| Shelli Leverty | 10/10 | 4919 days | 100% |
| Doug Hamerton | 10/10 | 4919 days | 100% |
| Becky Ivers | 10/10 | 4947 days | 100% |
| Mark Stanford | 10/10 | 4947 days | 100% |
| Lesley barber | 10/10 | 4978 days | 100% |
| Barryatkinson | 10/10 | 4978 days | 100% |
| DonKendra1 | 10/10 | 5070 days | 100% |
| Bushy | 10/10 | 5223 days | 100% |
| Calypso | 10/10 | 5253 days | 100% |
| yromanec | 10/10 | 5253 days | 100% |
| ladyharley | 10/10 | 5284 days | 100% |
| ChrisW | 10/10 | 5284 days | 100% |
| oldbiker | 10/10 | 5284 days | 100% |
| TheHoon | 10/10 | 5284 days | 100% |
| Banana | 10/10 | 5313 days | 100% |
| monakeehn | 10/10 | 5313 days | 100% |
| fdjavid | 10/10 | 5313 days | 100% |
| websterau | 9/10 | 5313 days | 99% |
| Dumyati | 10/10 | 5313 days | 100% |
| holidaze28 | 10/10 | 5344 days | 100% |
| michaelclout | 10/10 | 5344 days | 100% |
| ZeroID | 10/10 | 5344 days | 100% |
| donald | 10/10 | 5344 days | 100% |
| mulhooligan | 10/10 | 5344 days | 100% |
| Stanton | 10/10 | 5344 days | 100% |
| kakapo66 | 10/10 | 5375 days | 100% |
| HughConnor | 10/10 | 5375 days | 100% |
| ruudie012 | 10/10 | 5375 days | 100% |
| lynne_florence | 10/10 | 5375 days | 100% |
| johnnyr | 10/10 | 5375 days | 100% |
| pro213 | 10/10 | 5375 days | 100% |
| chrissywatson1711 | 10/10 | 5375 days | 100% |
| pahoia | 10/10 | 5375 days | 100% |
| Iand | 10/10 | 5375 days | 100% |
| jillowen | 9/10 | 5375 days | 99% |
| AbeB | 10/10 | 5405 days | 100% |
| mikereid | 10/10 | 5405 days | 100% |
| Cmax | 10/10 | 5436 days | 100% |
| gnh2011 | 9/10 | 5436 days | 99% |
| taylaw | 10/10 | 5436 days | 100% |
| mariarivas | 10/10 | 5436 days | 100% |
| flippy0 | 10/10 | 5466 days | 100% |
| squids12 | 10/10 | 5558 days | 100% |
| Rosco | 9/10 | 5619 days | 99% |
| blahutp | 9/10 | 5619 days | 99% |
| mrkunz | 10/10 | 5619 days | 100% |
| clouddreamer | 10/10 | 5619 days | 100% |
| May | 10/10 | 5619 days | 100% |
| mitchaoc | 10/10 | 5650 days | 100% |
| Welshy01 | 10/10 | 5650 days | 100% |
| pamc | 10/10 | 5650 days | 100% |
| zaphood | 10/10 | 5650 days | 100% |
| cruisequeens | 10/10 | 5678 days | 100% |
| adriennevergos | 10/10 | 5678 days | 100% |
| damondosterhus | 10/10 | 5678 days | 100% |
| janetc260 | 10/10 | 5678 days | 100% |
| marpet | 10/10 | 5709 days | 100% |
| roofie | 10/10 | 5709 days | 100% |
| musicman | 10/10 | 5709 days | 100% |
| Merran | 10/10 | 5709 days | 100% |
| traceymarcus1 | 10/10 | 5709 days | 100% |
| Budley1 | 10/10 | 5740 days | 100% |
| vjr | 10/10 | 5740 days | 100% |
| DukeMatthews | 10/10 | 5740 days | 100% |
| hellsknipe356 | 10/10 | 5801 days | 100% |
| KDStorey | 10/10 | 5801 days | 100% |
| robinson | 10/10 | 5801 days | 100% |
| JoeLeeKnipe | 10/10 | 5801 days | 100% |
| lstenhouse | 10/10 | 5831 days | 100% |
| doylouys | 10/10 | 5862 days | 100% |
| Jorgy | 10/10 | 5893 days | 100% |
| Phil Thurbon | 9/10 | 5984 days | 99% |
| awolnow | 10/10 | 6015 days | 100% |
| spb97 | 9/10 | 6015 days | 99% |
| stealhorsecowboy | 10/10 | 6015 days | 100% |
| smithy55 | 9/10 | 6015 days | 99% |
| fitbear | 9/10 | 6015 days | 99% |
| zebradiver | 8/10 | 6015 days | 98% |
| cowboyjohn | 10/10 | 6043 days | 100% |
| wahteh | 10/10 | 6043 days | 100% |
| tommarbru | 10/10 | 6043 days | 100% |
| Mathias | 10/10 | 6043 days | 100% |
| JParkinson | 10/10 | 6043 days | 100% |
| sinead drummy | 10/10 | 6074 days | 100% |
| philip andrew-artha | 10/10 | 6074 days | 100% |
| bmaier | 10/10 | 6074 days | 100% |
| alongthorn | 10/10 | 6074 days | 100% |
| KENMCD | 10/10 | 6074 days | 100% |
| kimreed | 10/10 | 6105 days | 100% |
| joshe051 | 10/10 | 6105 days | 100% |
| Travelling_Kiwi | 10/10 | 6105 days | 100% |
| John Stevens | 10/10 | 6135 days | 100% |
| big_rog | 10/10 | 6135 days | 100% |
| HairyHaggis | 10/10 | 6135 days | 100% |
| Mary Long | 10/10 | 6135 days | 100% |
| stegall | 10/10 | 6135 days | 100% |
| Maureen Lee | 10/10 | 6166 days | 100% |
| monkey | 10/10 | 6166 days | 100% |
| renaud bonnet | 10/10 | 6196 days | 100% |
| George Wheatley | 10/10 | 6319 days | 100% |
| eunie | 10/10 | 6349 days | 100% |
| antoinette | 10/10 | 6351 days | 100% |
| Bananna | 10/10 | 6361 days | 100% |
| Anne Cathala | 10/10 | 6362 days | 100% |
| gordy838 | 9/10 | 6370 days | 99% |
| Janet May | 9/10 | 6374 days | 99% |
| Chuffy57 | 10/10 | 6375 days | 100% |
| Tom Speed | 10/10 | 6380 days | 100% |
| Brenda | 10/10 | 6390 days | 100% |
| Jay & N | 10/10 | 6401 days | 54% |
| MoJo | 10/10 | 6408 days | 100% |
| Tomasz Trawniczek | 10/10 | 6408 days | 100% |
| David Lewis | 9/10 | 6423 days | 99% |
| andy Cant | 10/10 | 6424 days | 100% |
| Catherine Robinson | 10/10 | 6426 days | 100% |
| Samantha Fenton | 10/10 | 6431 days | 100% |
| Judy Macdonald | 10/10 | 6435 days | 100% |
| Allison | 10/10 | 6435 days | 54% |
| Gordon Lawrence | 10/10 | 6468 days | 100% |
| ivkemp | 10/10 | 6477 days | 100% |
| shonell | 10/10 | 6500 days | 100% |
| Aimee Marsh | 10/10 | 6501 days | 100% |
| Kathy Reily | 10/10 | 6504 days | 100% |
| CaptainObvious | 10/10 | 6512 days | 100% |
| Darren Rye | 10/10 | 6517 days | 100% |
| Dolphin | 10/10 | 6524 days | 100% |
| Robin | 10/10 | 6532 days | 100% |
| suedavies | 10/10 | 6533 days | 100% |
| Claire O'Donoghue | 10/10 | 6539 days | 100% |
| Mike | 10/10 | 6539 days | 100% |
| barbara hunn | 8/10 | 6544 days | 98% |
| Mike Morgan | 10/10 | 6545 days | 100% |
| Matt Cross | 10/10 | 6547 days | 100% |
| Denelle Adams | 10/10 | 6551 days | 100% |
| Belinda Keys | 10/10 | 6553 days | 100% |
| Tom Gordon | 9/10 | 6553 days | 99% |
| ashos | 10/10 | 6553 days | 100% |
| hottie | 9/10 | 6553 days | 99% |
| Karen Gibson | 10/10 | 6553 days | 100% |
| Michelle Mulgrew | 10/10 | 6560 days | 100% |
| thehammer | 10/10 | 6574 days | 100% |
| Ele | 10/10 | 6575 days | 100% |
| Bridget Cummins | 10/10 | 6581 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
-2.36% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 110 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 | -2.33% |
| 198 | -2.34% |
| 199 | -2.35% |
| 200 | -2.36% |
| 201 | -2.37% |
| 202 | -2.39% |
| 203 | -2.40% |
| … | … |
Balancing Adjustment
0.31% 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
97%
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.