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

98.99%

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 1924 days 3.38 100%
Bruce B 10/10 1952 days 3.32 98%
barry aling 10/10 1952 days 3.32 98%
luiz montanari 10/10 1983 days 3.26 97%
EMMANUEL DIAS DA SILVA 10/10 2014 days 3.2 95%
Philip Gattey 9/10 2014 days 3.2 95%
Ch. Verling 10/10 2044 days 3.14 93%
Ulises Guevara 10/10 2044 days 3.14 93%
Dusty 10/10 2044 days 3.14 93%
Sandra Downie 10/10 2348 days 2.55 75%
Gisle Forseth 9/10 2379 days 2.49 74%
Asmawi Wahab 10/10 2654 days 1.95 58%
Shelli Leverty 10/10 2654 days 1.95 58%
Doug Hamerton 10/10 2654 days 1.95 58%
Becky Ivers 10/10 2682 days 1.89 56%
Mark Stanford 10/10 2682 days 1.89 56%
Lesley barber 10/10 2713 days 1.83 54%
Barryatkinson 10/10 2713 days 1.83 54%
DonKendra1 10/10 2805 days 1.65 49%
Bushy 10/10 2958 days 1.35 40%
Calypso 10/10 2988 days 1.3 38%
yromanec 10/10 2988 days 1.3 38%
ladyharley 10/10 3019 days 1.23 37%
ChrisW 10/10 3019 days 1.23 37%
oldbiker 10/10 3019 days 1.23 37%
TheHoon 10/10 3019 days 1.23 37%
Banana 10/10 3048 days 1.18 35%
monakeehn 10/10 3048 days 1.18 35%
fdjavid 10/10 3048 days 1.18 35%
websterau 9/10 3048 days 1.18 35%
Dumyati 10/10 3048 days 1.18 35%
holidaze28 10/10 3079 days 1.12 33%
michaelclout 10/10 3079 days 1.12 33%
ZeroID 10/10 3079 days 1.12 33%
donald 10/10 3079 days 1.12 33%
mulhooligan 10/10 3079 days 1.12 33%
Stanton 10/10 3079 days 1.12 33%
kakapo66 10/10 3110 days 1.06 31%
HughConnor 10/10 3110 days 1.06 31%
ruudie012 10/10 3110 days 1.06 31%
lynne_florence 10/10 3110 days 1.06 31%
johnnyr 10/10 3110 days 1.06 31%
pro213 10/10 3110 days 1.06 31%
chrissywatson1711 10/10 3110 days 1.06 31%
pahoia 10/10 3110 days 1.06 31%
Iand 10/10 3110 days 1.06 31%
jillowen 9/10 3110 days 1.06 31%
AbeB 10/10 3140 days 1.0 30%
mikereid 10/10 3140 days 1.0 30%
Cmax 10/10 3171 days 0.94 28%
gnh2011 9/10 3171 days 0.94 28%
taylaw 10/10 3171 days 0.94 28%
mariarivas 10/10 3171 days 0.94 28%
flippy0 10/10 3201 days 0.88 26%
squids12 10/10 3293 days 0.7 21%
Rosco 9/10 3354 days 0.58 17%
blahutp 9/10 3354 days 0.58 17%
mrkunz 10/10 3354 days 0.58 17%
clouddreamer 10/10 3354 days 0.58 17%
May 10/10 3354 days 0.58 17%
mitchaoc 10/10 3385 days 0.52 15%
Welshy01 10/10 3385 days 0.52 15%
pamc 10/10 3385 days 0.52 15%
zaphood 10/10 3385 days 0.52 15%
cruisequeens 10/10 3413 days 0.46 14%
adriennevergos 10/10 3413 days 0.46 14%
damondosterhus 10/10 3413 days 0.46 14%
janetc260 10/10 3413 days 0.46 14%
marpet 10/10 3444 days 0.4 12%
roofie 10/10 3444 days 0.4 12%
musicman 10/10 3444 days 0.4 12%
Merran 10/10 3444 days 0.4 12%
traceymarcus1 10/10 3444 days 0.4 12%
Budley1 10/10 3475 days 0.34 10%
vjr 10/10 3475 days 0.34 10%
DukeMatthews 10/10 3475 days 0.34 10%
hellsknipe356 10/10 3536 days 0.22 7%
KDStorey 10/10 3536 days 0.22 7%
robinson 10/10 3536 days 0.22 7%
JoeLeeKnipe 10/10 3536 days 0.22 7%
lstenhouse 10/10 3566 days 0.16 5%
doylouys 10/10 3597 days 0.1 3%
Jorgy 10/10 3628 days 0.04 1%
Phil Thurbon 9/10 3719 days 0.0 0%
awolnow 10/10 3750 days 0.0 0%
spb97 9/10 3750 days 0.0 0%
stealhorsecowboy 10/10 3750 days 0.0 0%
smithy55 9/10 3750 days 0.0 0%
fitbear 9/10 3750 days 0.0 0%
zebradiver 8/10 3750 days 0.0 0%
cowboyjohn 10/10 3778 days 0.0 0%
wahteh 10/10 3778 days 0.0 0%
tommarbru 10/10 3778 days 0.0 0%
Mathias 10/10 3778 days 0.0 0%
JParkinson 10/10 3778 days 0.0 0%
sinead drummy 10/10 3809 days 0.0 0%
philip andrew-artha 10/10 3809 days 0.0 0%
bmaier 10/10 3809 days 0.0 0%
alongthorn 10/10 3809 days 0.0 0%
KENMCD 10/10 3809 days 0.0 0%
kimreed 10/10 3840 days 0.0 0%
joshe051 10/10 3840 days 0.0 0%
Travelling_Kiwi 10/10 3840 days 0.0 0%
John Stevens 10/10 3870 days 0.0 0%
big_rog 10/10 3870 days 0.0 0%
HairyHaggis 10/10 3870 days 0.0 0%
Mary Long 10/10 3870 days 0.0 0%
stegall 10/10 3870 days 0.0 0%
Maureen Lee 10/10 3901 days 0.0 0%
monkey 10/10 3901 days 0.0 0%
renaud bonnet 10/10 3931 days 0.0 0%
George Wheatley 10/10 4054 days 0.0 0%
eunie 10/10 4084 days 0.0 0%
antoinette 10/10 4086 days 0.0 0%
Bananna 10/10 4095 days 0.0 0%
Anne Cathala 10/10 4097 days 0.0 0%
gordy838 9/10 4105 days 0.0 0%
Janet May 9/10 4109 days 0.0 0%
Chuffy57 10/10 4110 days 0.0 0%
Tom Speed 10/10 4115 days 0.0 0%
Brenda 10/10 4125 days 0.0 0%
Jay & N 10/10 4136 days true 0.0 0%
MoJo 10/10 4143 days 0.0 0%
Tomasz Trawniczek 10/10 4143 days 0.0 0%
David Lewis 9/10 4157 days 0.0 0%
andy Cant 10/10 4159 days 0.0 0%
Catherine Robinson 10/10 4161 days 0.0 0%
Samantha Fenton 10/10 4166 days 0.0 0%
Judy Macdonald 10/10 4170 days 0.0 0%
Allison 10/10 4170 days true 0.0 0%
Gordon Lawrence 10/10 4203 days 0.0 0%
ivkemp 10/10 4212 days 0.0 0%
shonell 10/10 4234 days 0.0 0%
Aimee Marsh 10/10 4236 days 0.0 0%
Kathy Reily 10/10 4239 days 0.0 0%
CaptainObvious 10/10 4247 days 0.0 0%
Darren Rye 10/10 4252 days 0.0 0%
Dolphin 10/10 4259 days 0.0 0%
Robin 10/10 4267 days 0.0 0%
suedavies 10/10 4268 days 0.0 0%
Claire O'Donoghue 10/10 4274 days 0.0 0%
Mike 10/10 4274 days 0.0 0%
barbara hunn 8/10 4279 days 0.0 0%
Mike Morgan 10/10 4280 days 0.0 0%
Matt Cross 10/10 4282 days 0.0 0%
Denelle Adams 10/10 4285 days 0.0 0%
Belinda Keys 10/10 4287 days 0.0 0%
Tom Gordon 9/10 4287 days 0.0 0%
ashos 10/10 4287 days 0.0 0%
hottie 9/10 4287 days 0.0 0%
Karen Gibson 10/10 4287 days 0.0 0%
Michelle Mulgrew 10/10 4295 days 0.0 0%
thehammer 10/10 4309 days 0.0 0%
Ele 10/10 4310 days 0.0 0%
Bridget Cummins 10/10 4316 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

-2.34% 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 -2.31%
198 -2.32%
199 -2.33%
200 -2.34%
201 -2.36%
202 -2.37%
203 -2.38%

Final Ranking Score

97%

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.