Ranking Score Explained

Hi there, 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.

Nick Morrison's avatar

Nick Morrison

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

99.01%

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 Face-to-Face Weight Relative Weight
Werner Staab 10/10 1820 days 3.58 100%
Bruce B 10/10 1848 days 3.53 98%
barry aling 10/10 1848 days 3.53 98%
luiz montanari 10/10 1879 days 3.47 97%
EMMANUEL DIAS DA SILVA 10/10 1910 days 3.41 95%
Philip Gattey 9/10 1910 days 3.41 95%
Ch. Verling 10/10 1940 days 3.35 93%
Ulises Guevara 10/10 1940 days 3.35 93%
Dusty 10/10 1940 days 3.35 93%
Sandra Downie 10/10 2244 days 2.75 77%
Gisle Forseth 9/10 2275 days 2.69 75%
Asmawi Wahab 10/10 2550 days 2.15 60%
Shelli Leverty 10/10 2550 days 2.15 60%
Doug Hamerton 10/10 2550 days 2.15 60%
Becky Ivers 10/10 2578 days 2.1 59%
Mark Stanford 10/10 2578 days 2.1 59%
Lesley barber 10/10 2609 days 2.04 57%
Barryatkinson 10/10 2609 days 2.04 57%
DonKendra1 10/10 2701 days 1.86 52%
Bushy 10/10 2854 days 1.56 43%
Calypso 10/10 2884 days 1.5 42%
yromanec 10/10 2884 days 1.5 42%
ladyharley 10/10 2915 days 1.44 40%
ChrisW 10/10 2915 days 1.44 40%
oldbiker 10/10 2915 days 1.44 40%
TheHoon 10/10 2915 days 1.44 40%
Banana 10/10 2944 days 1.38 39%
monakeehn 10/10 2944 days 1.38 39%
fdjavid 10/10 2944 days 1.38 39%
websterau 9/10 2944 days 1.38 39%
Dumyati 10/10 2944 days 1.38 39%
holidaze28 10/10 2975 days 1.32 37%
michaelclout 10/10 2975 days 1.32 37%
ZeroID 10/10 2975 days 1.32 37%
donald 10/10 2975 days 1.32 37%
mulhooligan 10/10 2975 days 1.32 37%
Stanton 10/10 2975 days 1.32 37%
kakapo66 10/10 3006 days 1.26 35%
HughConnor 10/10 3006 days 1.26 35%
ruudie012 10/10 3006 days 1.26 35%
lynne_florence 10/10 3006 days 1.26 35%
johnnyr 10/10 3006 days 1.26 35%
pro213 10/10 3006 days 1.26 35%
chrissywatson1711 10/10 3006 days 1.26 35%
pahoia 10/10 3006 days 1.26 35%
Iand 10/10 3006 days 1.26 35%
jillowen 9/10 3006 days 1.26 35%
AbeB 10/10 3036 days 1.2 34%
mikereid 10/10 3036 days 1.2 34%
Cmax 10/10 3067 days 1.14 32%
gnh2011 9/10 3067 days 1.14 32%
taylaw 10/10 3067 days 1.14 32%
mariarivas 10/10 3067 days 1.14 32%
flippy0 10/10 3097 days 1.08 30%
squids12 10/10 3189 days 0.9 25%
Rosco 9/10 3250 days 0.78 22%
blahutp 9/10 3250 days 0.78 22%
mrkunz 10/10 3250 days 0.78 22%
clouddreamer 10/10 3250 days 0.78 22%
May 10/10 3250 days 0.78 22%
mitchaoc 10/10 3281 days 0.72 20%
Welshy01 10/10 3281 days 0.72 20%
pamc 10/10 3281 days 0.72 20%
zaphood 10/10 3281 days 0.72 20%
cruisequeens 10/10 3309 days 0.67 19%
adriennevergos 10/10 3309 days 0.67 19%
damondosterhus 10/10 3309 days 0.67 19%
janetc260 10/10 3309 days 0.67 19%
marpet 10/10 3340 days 0.61 17%
roofie 10/10 3340 days 0.61 17%
musicman 10/10 3340 days 0.61 17%
Merran 10/10 3340 days 0.61 17%
traceymarcus1 10/10 3340 days 0.61 17%
Budley1 10/10 3371 days 0.55 15%
vjr 10/10 3371 days 0.55 15%
DukeMatthews 10/10 3371 days 0.55 15%
hellsknipe356 10/10 3432 days 0.43 12%
KDStorey 10/10 3432 days 0.43 12%
robinson 10/10 3432 days 0.43 12%
JoeLeeKnipe 10/10 3432 days 0.43 12%
lstenhouse 10/10 3462 days 0.37 10%
doylouys 10/10 3493 days 0.31 9%
Jorgy 10/10 3524 days 0.25 7%
Phil Thurbon 9/10 3615 days 0.07 2%
awolnow 10/10 3646 days 0.01 0%
spb97 9/10 3646 days 0.01 0%
stealhorsecowboy 10/10 3646 days 0.01 0%
smithy55 9/10 3646 days 0.01 0%
fitbear 9/10 3646 days 0.01 0%
zebradiver 8/10 3646 days 0.01 0%
cowboyjohn 10/10 3674 days 0.0 0%
wahteh 10/10 3674 days 0.0 0%
tommarbru 10/10 3674 days 0.0 0%
Mathias 10/10 3674 days 0.0 0%
JParkinson 10/10 3674 days 0.0 0%
sinead drummy 10/10 3705 days 0.0 0%
philip andrew-artha 10/10 3705 days 0.0 0%
bmaier 10/10 3705 days 0.0 0%
alongthorn 10/10 3705 days 0.0 0%
KENMCD 10/10 3705 days 0.0 0%
kimreed 10/10 3736 days 0.0 0%
joshe051 10/10 3736 days 0.0 0%
Travelling_Kiwi 10/10 3736 days 0.0 0%
John Stevens 10/10 3766 days 0.0 0%
big_rog 10/10 3766 days 0.0 0%
HairyHaggis 10/10 3766 days 0.0 0%
Mary Long 10/10 3766 days 0.0 0%
stegall 10/10 3766 days 0.0 0%
Maureen Lee 10/10 3797 days 0.0 0%
monkey 10/10 3797 days 0.0 0%
renaud bonnet 10/10 3827 days 0.0 0%
George Wheatley 10/10 3950 days 0.0 0%
eunie 10/10 3980 days 0.0 0%
antoinette 10/10 3982 days 0.0 0%
Bananna 10/10 3992 days 0.0 0%
Anne Cathala 10/10 3993 days 0.0 0%
gordy838 9/10 4001 days 0.0 0%
Janet May 9/10 4005 days 0.0 0%
Chuffy57 10/10 4006 days 0.0 0%
Tom Speed 10/10 4011 days 0.0 0%
Brenda 10/10 4021 days 0.0 0%
Jay & N 10/10 4032 days true 0.0 0%
MoJo 10/10 4039 days 0.0 0%
Tomasz Trawniczek 10/10 4039 days 0.0 0%
David Lewis 9/10 4054 days 0.0 0%
andy Cant 10/10 4055 days 0.0 0%
Catherine Robinson 10/10 4057 days 0.0 0%
Samantha Fenton 10/10 4062 days 0.0 0%
Judy Macdonald 10/10 4066 days 0.0 0%
Allison 10/10 4066 days true 0.0 0%
Gordon Lawrence 10/10 4099 days 0.0 0%
ivkemp 10/10 4108 days 0.0 0%
shonell 10/10 4130 days 0.0 0%
Aimee Marsh 10/10 4132 days 0.0 0%
Kathy Reily 10/10 4135 days 0.0 0%
CaptainObvious 10/10 4143 days 0.0 0%
Darren Rye 10/10 4148 days 0.0 0%
Dolphin 10/10 4155 days 0.0 0%
Robin 10/10 4163 days 0.0 0%
suedavies 10/10 4164 days 0.0 0%
Claire O'Donoghue 10/10 4170 days 0.0 0%
Mike 10/10 4170 days 0.0 0%
barbara hunn 8/10 4175 days 0.0 0%
Mike Morgan 10/10 4176 days 0.0 0%
Matt Cross 10/10 4178 days 0.0 0%
Denelle Adams 10/10 4182 days 0.0 0%
Belinda Keys 10/10 4184 days 0.0 0%
Tom Gordon 9/10 4184 days 0.0 0%
ashos 10/10 4184 days 0.0 0%
hottie 9/10 4184 days 0.0 0%
Karen Gibson 10/10 4184 days 0.0 0%
Michelle Mulgrew 10/10 4191 days 0.0 0%
thehammer 10/10 4205 days 0.0 0%
Ele 10/10 4206 days 0.0 0%
Bridget Cummins 10/10 4212 days 0.0 0%

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

-3.98% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 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 199 days.

The Bularangi Harley Tours of New Zealand experience has been adjusted for 199 days. Adjustments are according to the following table.

Days Adjustment
196 -3.92%
197 -3.94%
198 -3.96%
199 -3.98%
200 -4.00%
201 -4.02%
202 -4.04%

Final Ranking Score

95%

The final ranking score once adjustments and rounding has been applied. This value is cached and recalculated each day. Therefore it may not be precisely accurate based on the other values presented.

If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz.