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 | 3581 days | 100% |
| Bruce B | 10/10 | 3609 days | 96% |
| barry aling | 10/10 | 3609 days | 96% |
| luiz montanari | 10/10 | 3640 days | 93% |
| EMMANUEL DIAS DA SILVA | 10/10 | 3671 days | 89% |
| Philip Gattey | 9/10 | 3671 days | 88% |
| Ch. Verling | 10/10 | 3701 days | 85% |
| Ulises Guevara | 10/10 | 3701 days | 85% |
| Dusty | 10/10 | 3701 days | 85% |
| Sandra Downie | 10/10 | 4005 days | 46% |
| Gisle Forseth | 9/10 | 4036 days | 42% |
| Asmawi Wahab | 10/10 | 4311 days | 7% |
| Shelli Leverty | 10/10 | 4311 days | 7% |
| Doug Hamerton | 10/10 | 4311 days | 7% |
| Becky Ivers | 10/10 | 4339 days | 4% |
| Mark Stanford | 10/10 | 4339 days | 4% |
| Lesley barber | 10/10 | 4370 days | 0% |
| Barryatkinson | 10/10 | 4370 days | 0% |
| DonKendra1 | 10/10 | 4462 days | 63% |
| Bushy | 10/10 | 4615 days | 63% |
| Calypso | 10/10 | 4645 days | 63% |
| yromanec | 10/10 | 4645 days | 63% |
| ladyharley | 10/10 | 4676 days | 63% |
| ChrisW | 10/10 | 4676 days | 63% |
| oldbiker | 10/10 | 4676 days | 63% |
| TheHoon | 10/10 | 4676 days | 63% |
| Banana | 10/10 | 4705 days | 63% |
| monakeehn | 10/10 | 4705 days | 63% |
| fdjavid | 10/10 | 4705 days | 63% |
| websterau | 9/10 | 4705 days | 63% |
| Dumyati | 10/10 | 4705 days | 63% |
| holidaze28 | 10/10 | 4736 days | 63% |
| michaelclout | 10/10 | 4736 days | 63% |
| ZeroID | 10/10 | 4736 days | 63% |
| donald | 10/10 | 4736 days | 63% |
| mulhooligan | 10/10 | 4736 days | 63% |
| Stanton | 10/10 | 4736 days | 63% |
| kakapo66 | 10/10 | 4767 days | 63% |
| HughConnor | 10/10 | 4767 days | 63% |
| ruudie012 | 10/10 | 4767 days | 63% |
| lynne_florence | 10/10 | 4767 days | 63% |
| johnnyr | 10/10 | 4767 days | 63% |
| pro213 | 10/10 | 4767 days | 63% |
| chrissywatson1711 | 10/10 | 4767 days | 63% |
| pahoia | 10/10 | 4767 days | 63% |
| Iand | 10/10 | 4767 days | 63% |
| jillowen | 9/10 | 4767 days | 63% |
| AbeB | 10/10 | 4797 days | 63% |
| mikereid | 10/10 | 4797 days | 63% |
| Cmax | 10/10 | 4828 days | 63% |
| gnh2011 | 9/10 | 4828 days | 63% |
| taylaw | 10/10 | 4828 days | 63% |
| mariarivas | 10/10 | 4828 days | 63% |
| flippy0 | 10/10 | 4858 days | 63% |
| squids12 | 10/10 | 4950 days | 63% |
| Rosco | 9/10 | 5011 days | 63% |
| blahutp | 9/10 | 5011 days | 63% |
| mrkunz | 10/10 | 5011 days | 63% |
| clouddreamer | 10/10 | 5011 days | 63% |
| May | 10/10 | 5011 days | 63% |
| mitchaoc | 10/10 | 5042 days | 63% |
| Welshy01 | 10/10 | 5042 days | 63% |
| pamc | 10/10 | 5042 days | 63% |
| zaphood | 10/10 | 5042 days | 63% |
| cruisequeens | 10/10 | 5070 days | 63% |
| adriennevergos | 10/10 | 5070 days | 63% |
| damondosterhus | 10/10 | 5070 days | 63% |
| janetc260 | 10/10 | 5070 days | 63% |
| marpet | 10/10 | 5101 days | 63% |
| roofie | 10/10 | 5101 days | 63% |
| musicman | 10/10 | 5101 days | 63% |
| Merran | 10/10 | 5101 days | 63% |
| traceymarcus1 | 10/10 | 5101 days | 63% |
| Budley1 | 10/10 | 5132 days | 63% |
| vjr | 10/10 | 5132 days | 63% |
| DukeMatthews | 10/10 | 5132 days | 63% |
| hellsknipe356 | 10/10 | 5193 days | 63% |
| KDStorey | 10/10 | 5193 days | 63% |
| robinson | 10/10 | 5193 days | 63% |
| JoeLeeKnipe | 10/10 | 5193 days | 63% |
| lstenhouse | 10/10 | 5223 days | 63% |
| doylouys | 10/10 | 5254 days | 63% |
| Jorgy | 10/10 | 5285 days | 63% |
| Phil Thurbon | 9/10 | 5376 days | 63% |
| awolnow | 10/10 | 5407 days | 63% |
| spb97 | 9/10 | 5407 days | 63% |
| stealhorsecowboy | 10/10 | 5407 days | 63% |
| smithy55 | 9/10 | 5407 days | 63% |
| fitbear | 9/10 | 5407 days | 63% |
| zebradiver | 8/10 | 5407 days | 62% |
| cowboyjohn | 10/10 | 5435 days | 63% |
| wahteh | 10/10 | 5435 days | 63% |
| tommarbru | 10/10 | 5435 days | 63% |
| Mathias | 10/10 | 5435 days | 63% |
| JParkinson | 10/10 | 5435 days | 63% |
| sinead drummy | 10/10 | 5466 days | 63% |
| philip andrew-artha | 10/10 | 5466 days | 63% |
| bmaier | 10/10 | 5466 days | 63% |
| alongthorn | 10/10 | 5466 days | 63% |
| KENMCD | 10/10 | 5466 days | 63% |
| kimreed | 10/10 | 5497 days | 63% |
| joshe051 | 10/10 | 5497 days | 63% |
| Travelling_Kiwi | 10/10 | 5497 days | 63% |
| John Stevens | 10/10 | 5527 days | 63% |
| big_rog | 10/10 | 5527 days | 63% |
| HairyHaggis | 10/10 | 5527 days | 63% |
| Mary Long | 10/10 | 5527 days | 63% |
| stegall | 10/10 | 5527 days | 63% |
| Maureen Lee | 10/10 | 5558 days | 63% |
| monkey | 10/10 | 5558 days | 63% |
| renaud bonnet | 10/10 | 5588 days | 63% |
| George Wheatley | 10/10 | 5711 days | 63% |
| eunie | 10/10 | 5741 days | 63% |
| antoinette | 10/10 | 5743 days | 63% |
| Bananna | 10/10 | 5752 days | 63% |
| Anne Cathala | 10/10 | 5754 days | 63% |
| gordy838 | 9/10 | 5762 days | 63% |
| Janet May | 9/10 | 5766 days | 63% |
| Chuffy57 | 10/10 | 5767 days | 63% |
| Tom Speed | 10/10 | 5772 days | 63% |
| Brenda | 10/10 | 5782 days | 63% |
| Jay & N | 10/10 | 5792 days | 38% |
| MoJo | 10/10 | 5800 days | 63% |
| Tomasz Trawniczek | 10/10 | 5800 days | 63% |
| David Lewis | 9/10 | 5814 days | 63% |
| andy Cant | 10/10 | 5815 days | 63% |
| Catherine Robinson | 10/10 | 5818 days | 63% |
| Samantha Fenton | 10/10 | 5823 days | 63% |
| Judy Macdonald | 10/10 | 5827 days | 63% |
| Allison | 10/10 | 5827 days | 38% |
| Gordon Lawrence | 10/10 | 5860 days | 63% |
| ivkemp | 10/10 | 5868 days | 63% |
| shonell | 10/10 | 5891 days | 63% |
| Aimee Marsh | 10/10 | 5892 days | 63% |
| Kathy Reily | 10/10 | 5896 days | 63% |
| CaptainObvious | 10/10 | 5904 days | 63% |
| Darren Rye | 10/10 | 5909 days | 63% |
| Dolphin | 10/10 | 5915 days | 63% |
| Robin | 10/10 | 5924 days | 63% |
| suedavies | 10/10 | 5924 days | 63% |
| Claire O'Donoghue | 10/10 | 5931 days | 63% |
| Mike | 10/10 | 5931 days | 63% |
| barbara hunn | 8/10 | 5936 days | 62% |
| Mike Morgan | 10/10 | 5937 days | 63% |
| Matt Cross | 10/10 | 5938 days | 63% |
| Denelle Adams | 10/10 | 5942 days | 63% |
| Belinda Keys | 10/10 | 5944 days | 63% |
| Tom Gordon | 9/10 | 5944 days | 63% |
| ashos | 10/10 | 5944 days | 63% |
| hottie | 9/10 | 5944 days | 63% |
| Karen Gibson | 10/10 | 5944 days | 63% |
| Michelle Mulgrew | 10/10 | 5952 days | 63% |
| thehammer | 10/10 | 5965 days | 63% |
| Ele | 10/10 | 5967 days | 63% |
| Bridget Cummins | 10/10 | 5973 days | 63% |
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
-4.04% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 41 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 | -3.98% |
| 198 | -4.00% |
| 199 | -4.02% |
| 200 | -4.04% |
| 201 | -4.06% |
| 202 | -4.08% |
| 203 | -4.10% |
| … | … |
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.