G'day, 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.

CC
Cymen Crick's avatar

Cymen Crick

Rankers Owner

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

98.72%

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 3644 days 100%
Bruce B 10/10 3672 days 96%
barry aling 10/10 3672 days 96%
luiz montanari 10/10 3703 days 92%
EMMANUEL DIAS DA SILVA 10/10 3734 days 88%
Philip Gattey 9/10 3734 days 87%
Ch. Verling 10/10 3764 days 84%
Ulises Guevara 10/10 3764 days 84%
Dusty 10/10 3764 days 84%
Sandra Downie 10/10 4068 days 42%
Gisle Forseth 9/10 4099 days 37%
Asmawi Wahab 10/10 4374 days 0%
Shelli Leverty 10/10 4374 days 0%
Doug Hamerton 10/10 4374 days 0%
Becky Ivers 10/10 4402 days 69%
Mark Stanford 10/10 4402 days 69%
Lesley barber 10/10 4433 days 69%
Barryatkinson 10/10 4433 days 69%
DonKendra1 10/10 4525 days 69%
Bushy 10/10 4678 days 69%
Calypso 10/10 4708 days 69%
yromanec 10/10 4708 days 69%
ladyharley 10/10 4739 days 69%
ChrisW 10/10 4739 days 69%
oldbiker 10/10 4739 days 69%
TheHoon 10/10 4739 days 69%
Banana 10/10 4768 days 69%
monakeehn 10/10 4768 days 69%
fdjavid 10/10 4768 days 69%
websterau 9/10 4768 days 68%
Dumyati 10/10 4768 days 69%
holidaze28 10/10 4799 days 69%
michaelclout 10/10 4799 days 69%
ZeroID 10/10 4799 days 69%
donald 10/10 4799 days 69%
mulhooligan 10/10 4799 days 69%
Stanton 10/10 4799 days 69%
kakapo66 10/10 4830 days 69%
HughConnor 10/10 4830 days 69%
ruudie012 10/10 4830 days 69%
lynne_florence 10/10 4830 days 69%
johnnyr 10/10 4830 days 69%
pro213 10/10 4830 days 69%
chrissywatson1711 10/10 4830 days 69%
pahoia 10/10 4830 days 69%
Iand 10/10 4830 days 69%
jillowen 9/10 4830 days 68%
AbeB 10/10 4860 days 69%
mikereid 10/10 4860 days 69%
Cmax 10/10 4891 days 69%
gnh2011 9/10 4891 days 68%
taylaw 10/10 4891 days 69%
mariarivas 10/10 4891 days 69%
flippy0 10/10 4921 days 69%
squids12 10/10 5013 days 69%
Rosco 9/10 5074 days 68%
blahutp 9/10 5074 days 68%
mrkunz 10/10 5074 days 69%
clouddreamer 10/10 5074 days 69%
May 10/10 5074 days 69%
mitchaoc 10/10 5105 days 69%
Welshy01 10/10 5105 days 69%
pamc 10/10 5105 days 69%
zaphood 10/10 5105 days 69%
cruisequeens 10/10 5133 days 69%
adriennevergos 10/10 5133 days 69%
damondosterhus 10/10 5133 days 69%
janetc260 10/10 5133 days 69%
marpet 10/10 5164 days 69%
roofie 10/10 5164 days 69%
musicman 10/10 5164 days 69%
Merran 10/10 5164 days 69%
traceymarcus1 10/10 5164 days 69%
Budley1 10/10 5195 days 69%
vjr 10/10 5195 days 69%
DukeMatthews 10/10 5195 days 69%
hellsknipe356 10/10 5256 days 69%
KDStorey 10/10 5256 days 69%
robinson 10/10 5256 days 69%
JoeLeeKnipe 10/10 5256 days 69%
lstenhouse 10/10 5286 days 69%
doylouys 10/10 5317 days 69%
Jorgy 10/10 5348 days 69%
Phil Thurbon 9/10 5439 days 68%
awolnow 10/10 5470 days 69%
spb97 9/10 5470 days 68%
stealhorsecowboy 10/10 5470 days 69%
smithy55 9/10 5470 days 68%
fitbear 9/10 5470 days 68%
zebradiver 8/10 5470 days 68%
cowboyjohn 10/10 5498 days 69%
wahteh 10/10 5498 days 69%
tommarbru 10/10 5498 days 69%
Mathias 10/10 5498 days 69%
JParkinson 10/10 5498 days 69%
sinead drummy 10/10 5529 days 69%
philip andrew-artha 10/10 5529 days 69%
bmaier 10/10 5529 days 69%
alongthorn 10/10 5529 days 69%
KENMCD 10/10 5529 days 69%
kimreed 10/10 5560 days 69%
joshe051 10/10 5560 days 69%
Travelling_Kiwi 10/10 5560 days 69%
John Stevens 10/10 5590 days 69%
big_rog 10/10 5590 days 69%
HairyHaggis 10/10 5590 days 69%
Mary Long 10/10 5590 days 69%
stegall 10/10 5590 days 69%
Maureen Lee 10/10 5621 days 69%
monkey 10/10 5621 days 69%
renaud bonnet 10/10 5651 days 69%
George Wheatley 10/10 5774 days 69%
eunie 10/10 5804 days 69%
antoinette 10/10 5806 days 69%
Bananna 10/10 5815 days 69%
Anne Cathala 10/10 5817 days 69%
gordy838 9/10 5825 days 68%
Janet May 9/10 5829 days 68%
Chuffy57 10/10 5830 days 69%
Tom Speed 10/10 5835 days 69%
Brenda 10/10 5845 days 69%
Jay & N 10/10 5855 days 41%
MoJo 10/10 5863 days 69%
Tomasz Trawniczek 10/10 5863 days 69%
David Lewis 9/10 5877 days 68%
andy Cant 10/10 5878 days 69%
Catherine Robinson 10/10 5881 days 69%
Samantha Fenton 10/10 5886 days 69%
Judy Macdonald 10/10 5890 days 69%
Allison 10/10 5890 days 41%
Gordon Lawrence 10/10 5923 days 69%
ivkemp 10/10 5931 days 69%
shonell 10/10 5954 days 69%
Aimee Marsh 10/10 5955 days 69%
Kathy Reily 10/10 5959 days 69%
CaptainObvious 10/10 5967 days 69%
Darren Rye 10/10 5972 days 69%
Dolphin 10/10 5978 days 69%
Robin 10/10 5987 days 69%
suedavies 10/10 5987 days 69%
Claire O'Donoghue 10/10 5994 days 69%
Mike 10/10 5994 days 69%
barbara hunn 8/10 5998 days 68%
Mike Morgan 10/10 6000 days 69%
Matt Cross 10/10 6001 days 69%
Denelle Adams 10/10 6005 days 69%
Belinda Keys 10/10 6007 days 69%
Tom Gordon 9/10 6007 days 68%
ashos 10/10 6007 days 69%
hottie 9/10 6007 days 68%
Karen Gibson 10/10 6007 days 69%
Michelle Mulgrew 10/10 6015 days 69%
thehammer 10/10 6028 days 69%
Ele 10/10 6030 days 69%
Bridget Cummins 10/10 6036 days 69%

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

-4.14% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 53 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 -4.08%
198 -4.10%
199 -4.12%
200 -4.14%
201 -4.16%
202 -4.19%
203 -4.21%

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.