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Ranking Score Explained

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.

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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

98.75%

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 3680 days 100%
Bruce B 10/10 3708 days 94%
barry aling 10/10 3708 days 94%
luiz montanari 10/10 3739 days 87%
EMMANUEL DIAS DA SILVA 10/10 3770 days 80%
Philip Gattey 9/10 3770 days 79%
Ch. Verling 10/10 3800 days 74%
Ulises Guevara 10/10 3800 days 74%
Dusty 10/10 3800 days 74%
Sandra Downie 10/10 4104 days 7%
Gisle Forseth 9/10 4135 days 0%
Asmawi Wahab 10/10 4410 days 59%
Shelli Leverty 10/10 4410 days 59%
Doug Hamerton 10/10 4410 days 59%
Becky Ivers 10/10 4438 days 59%
Mark Stanford 10/10 4438 days 59%
Lesley barber 10/10 4469 days 59%
Barryatkinson 10/10 4469 days 59%
DonKendra1 10/10 4561 days 59%
Bushy 10/10 4714 days 59%
Calypso 10/10 4744 days 59%
yromanec 10/10 4744 days 59%
ladyharley 10/10 4775 days 59%
ChrisW 10/10 4775 days 59%
oldbiker 10/10 4775 days 59%
TheHoon 10/10 4775 days 59%
Banana 10/10 4804 days 59%
monakeehn 10/10 4804 days 59%
fdjavid 10/10 4804 days 59%
websterau 9/10 4804 days 58%
Dumyati 10/10 4804 days 59%
holidaze28 10/10 4835 days 59%
michaelclout 10/10 4835 days 59%
ZeroID 10/10 4835 days 59%
donald 10/10 4835 days 59%
mulhooligan 10/10 4835 days 59%
Stanton 10/10 4835 days 59%
kakapo66 10/10 4866 days 59%
HughConnor 10/10 4866 days 59%
ruudie012 10/10 4866 days 59%
lynne_florence 10/10 4866 days 59%
johnnyr 10/10 4866 days 59%
pro213 10/10 4866 days 59%
chrissywatson1711 10/10 4866 days 59%
pahoia 10/10 4866 days 59%
Iand 10/10 4866 days 59%
jillowen 9/10 4866 days 58%
AbeB 10/10 4896 days 59%
mikereid 10/10 4896 days 59%
Cmax 10/10 4927 days 59%
gnh2011 9/10 4927 days 58%
taylaw 10/10 4927 days 59%
mariarivas 10/10 4927 days 59%
flippy0 10/10 4957 days 59%
squids12 10/10 5049 days 59%
Rosco 9/10 5110 days 58%
blahutp 9/10 5110 days 58%
mrkunz 10/10 5110 days 59%
clouddreamer 10/10 5110 days 59%
May 10/10 5110 days 59%
mitchaoc 10/10 5141 days 59%
Welshy01 10/10 5141 days 59%
pamc 10/10 5141 days 59%
zaphood 10/10 5141 days 59%
cruisequeens 10/10 5169 days 59%
adriennevergos 10/10 5169 days 59%
damondosterhus 10/10 5169 days 59%
janetc260 10/10 5169 days 59%
marpet 10/10 5200 days 59%
roofie 10/10 5200 days 59%
musicman 10/10 5200 days 59%
Merran 10/10 5200 days 59%
traceymarcus1 10/10 5200 days 59%
Budley1 10/10 5231 days 59%
vjr 10/10 5231 days 59%
DukeMatthews 10/10 5231 days 59%
hellsknipe356 10/10 5292 days 59%
KDStorey 10/10 5292 days 59%
robinson 10/10 5292 days 59%
JoeLeeKnipe 10/10 5292 days 59%
lstenhouse 10/10 5322 days 59%
doylouys 10/10 5353 days 59%
Jorgy 10/10 5384 days 59%
Phil Thurbon 9/10 5475 days 58%
awolnow 10/10 5506 days 59%
spb97 9/10 5506 days 58%
stealhorsecowboy 10/10 5506 days 59%
smithy55 9/10 5506 days 58%
fitbear 9/10 5506 days 58%
zebradiver 8/10 5506 days 56%
cowboyjohn 10/10 5534 days 59%
wahteh 10/10 5534 days 59%
tommarbru 10/10 5534 days 59%
Mathias 10/10 5534 days 59%
JParkinson 10/10 5534 days 59%
sinead drummy 10/10 5565 days 59%
philip andrew-artha 10/10 5565 days 59%
bmaier 10/10 5565 days 59%
alongthorn 10/10 5565 days 59%
KENMCD 10/10 5565 days 59%
kimreed 10/10 5596 days 59%
joshe051 10/10 5596 days 59%
Travelling_Kiwi 10/10 5596 days 59%
John Stevens 10/10 5626 days 59%
big_rog 10/10 5626 days 59%
HairyHaggis 10/10 5626 days 59%
Mary Long 10/10 5626 days 59%
stegall 10/10 5626 days 59%
Maureen Lee 10/10 5657 days 59%
monkey 10/10 5657 days 59%
renaud bonnet 10/10 5687 days 59%
George Wheatley 10/10 5810 days 59%
eunie 10/10 5840 days 59%
antoinette 10/10 5842 days 59%
Bananna 10/10 5851 days 59%
Anne Cathala 10/10 5853 days 59%
gordy838 9/10 5861 days 58%
Janet May 9/10 5865 days 58%
Chuffy57 10/10 5866 days 59%
Tom Speed 10/10 5871 days 59%
Brenda 10/10 5881 days 59%
Jay & N 10/10 5891 days 14%
MoJo 10/10 5899 days 59%
Tomasz Trawniczek 10/10 5899 days 59%
David Lewis 9/10 5913 days 58%
andy Cant 10/10 5914 days 59%
Catherine Robinson 10/10 5917 days 59%
Samantha Fenton 10/10 5922 days 59%
Judy Macdonald 10/10 5926 days 59%
Allison 10/10 5926 days 14%
Gordon Lawrence 10/10 5959 days 59%
ivkemp 10/10 5967 days 59%
shonell 10/10 5990 days 59%
Aimee Marsh 10/10 5991 days 59%
Kathy Reily 10/10 5995 days 59%
CaptainObvious 10/10 6003 days 59%
Darren Rye 10/10 6008 days 59%
Dolphin 10/10 6014 days 59%
Robin 10/10 6023 days 59%
suedavies 10/10 6023 days 59%
Claire O'Donoghue 10/10 6030 days 59%
Mike 10/10 6030 days 59%
barbara hunn 8/10 6034 days 56%
Mike Morgan 10/10 6036 days 59%
Matt Cross 10/10 6037 days 59%
Denelle Adams 10/10 6041 days 59%
Belinda Keys 10/10 6043 days 59%
Tom Gordon 9/10 6043 days 58%
ashos 10/10 6043 days 59%
hottie 9/10 6043 days 58%
Karen Gibson 10/10 6043 days 59%
Michelle Mulgrew 10/10 6051 days 59%
thehammer 10/10 6064 days 59%
Ele 10/10 6066 days 59%
Bridget Cummins 10/10 6072 days 59%

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

-3.81% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 59 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 -3.75%
198 -3.77%
199 -3.79%
200 -3.81%
201 -3.82%
202 -3.84%
203 -3.86%
… …

Balancing Adjustment

0.44% 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.