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

98.98%

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 1957 days 3.31 100%
Bruce B 10/10 1985 days 3.26 98%
barry aling 10/10 1985 days 3.26 98%
luiz montanari 10/10 2016 days 3.2 97%
EMMANUEL DIAS DA SILVA 10/10 2047 days 3.14 95%
Philip Gattey 9/10 2047 days 3.14 95%
Ch. Verling 10/10 2077 days 3.08 93%
Ulises Guevara 10/10 2077 days 3.08 93%
Dusty 10/10 2077 days 3.08 93%
Sandra Downie 10/10 2382 days 2.48 75%
Gisle Forseth 9/10 2413 days 2.42 73%
Asmawi Wahab 10/10 2688 days 1.88 57%
Shelli Leverty 10/10 2688 days 1.88 57%
Doug Hamerton 10/10 2688 days 1.88 57%
Becky Ivers 10/10 2716 days 1.83 55%
Mark Stanford 10/10 2716 days 1.83 55%
Lesley barber 10/10 2747 days 1.77 53%
Barryatkinson 10/10 2747 days 1.77 53%
DonKendra1 10/10 2839 days 1.59 48%
Bushy 10/10 2992 days 1.29 39%
Calypso 10/10 3022 days 1.23 37%
yromanec 10/10 3022 days 1.23 37%
ladyharley 10/10 3053 days 1.17 35%
ChrisW 10/10 3053 days 1.17 35%
oldbiker 10/10 3053 days 1.17 35%
TheHoon 10/10 3053 days 1.17 35%
Banana 10/10 3082 days 1.11 34%
monakeehn 10/10 3082 days 1.11 34%
fdjavid 10/10 3082 days 1.11 34%
websterau 9/10 3082 days 1.11 34%
Dumyati 10/10 3082 days 1.11 34%
holidaze28 10/10 3113 days 1.05 32%
michaelclout 10/10 3113 days 1.05 32%
ZeroID 10/10 3113 days 1.05 32%
donald 10/10 3113 days 1.05 32%
mulhooligan 10/10 3113 days 1.05 32%
Stanton 10/10 3113 days 1.05 32%
kakapo66 10/10 3144 days 0.99 30%
HughConnor 10/10 3144 days 0.99 30%
ruudie012 10/10 3144 days 0.99 30%
lynne_florence 10/10 3144 days 0.99 30%
johnnyr 10/10 3144 days 0.99 30%
pro213 10/10 3144 days 0.99 30%
chrissywatson1711 10/10 3144 days 0.99 30%
pahoia 10/10 3144 days 0.99 30%
Iand 10/10 3144 days 0.99 30%
jillowen 9/10 3144 days 0.99 30%
AbeB 10/10 3174 days 0.93 28%
mikereid 10/10 3174 days 0.93 28%
Cmax 10/10 3205 days 0.87 26%
gnh2011 9/10 3205 days 0.87 26%
taylaw 10/10 3205 days 0.87 26%
mariarivas 10/10 3205 days 0.87 26%
flippy0 10/10 3235 days 0.81 25%
squids12 10/10 3327 days 0.63 19%
Rosco 9/10 3388 days 0.51 15%
blahutp 9/10 3388 days 0.51 15%
mrkunz 10/10 3388 days 0.51 15%
clouddreamer 10/10 3388 days 0.51 15%
May 10/10 3388 days 0.51 15%
mitchaoc 10/10 3419 days 0.45 14%
Welshy01 10/10 3419 days 0.45 14%
pamc 10/10 3419 days 0.45 14%
zaphood 10/10 3419 days 0.45 14%
cruisequeens 10/10 3447 days 0.4 12%
adriennevergos 10/10 3447 days 0.4 12%
damondosterhus 10/10 3447 days 0.4 12%
janetc260 10/10 3447 days 0.4 12%
marpet 10/10 3478 days 0.34 10%
roofie 10/10 3478 days 0.34 10%
musicman 10/10 3478 days 0.34 10%
Merran 10/10 3478 days 0.34 10%
traceymarcus1 10/10 3478 days 0.34 10%
Budley1 10/10 3509 days 0.28 8%
vjr 10/10 3509 days 0.28 8%
DukeMatthews 10/10 3509 days 0.28 8%
hellsknipe356 10/10 3570 days 0.16 5%
KDStorey 10/10 3570 days 0.16 5%
robinson 10/10 3570 days 0.16 5%
JoeLeeKnipe 10/10 3570 days 0.16 5%
lstenhouse 10/10 3600 days 0.1 3%
doylouys 10/10 3631 days 0.04 1%
Jorgy 10/10 3662 days 0.0 0%
Phil Thurbon 9/10 3753 days 0.0 0%
awolnow 10/10 3784 days 0.0 0%
spb97 9/10 3784 days 0.0 0%
stealhorsecowboy 10/10 3784 days 0.0 0%
smithy55 9/10 3784 days 0.0 0%
fitbear 9/10 3784 days 0.0 0%
zebradiver 8/10 3784 days 0.0 0%
cowboyjohn 10/10 3812 days 0.0 0%
wahteh 10/10 3812 days 0.0 0%
tommarbru 10/10 3812 days 0.0 0%
Mathias 10/10 3812 days 0.0 0%
JParkinson 10/10 3812 days 0.0 0%
sinead drummy 10/10 3843 days 0.0 0%
philip andrew-artha 10/10 3843 days 0.0 0%
bmaier 10/10 3843 days 0.0 0%
alongthorn 10/10 3843 days 0.0 0%
KENMCD 10/10 3843 days 0.0 0%
kimreed 10/10 3874 days 0.0 0%
joshe051 10/10 3874 days 0.0 0%
Travelling_Kiwi 10/10 3874 days 0.0 0%
John Stevens 10/10 3904 days 0.0 0%
big_rog 10/10 3904 days 0.0 0%
HairyHaggis 10/10 3904 days 0.0 0%
Mary Long 10/10 3904 days 0.0 0%
stegall 10/10 3904 days 0.0 0%
Maureen Lee 10/10 3935 days 0.0 0%
monkey 10/10 3935 days 0.0 0%
renaud bonnet 10/10 3965 days 0.0 0%
George Wheatley 10/10 4088 days 0.0 0%
eunie 10/10 4118 days 0.0 0%
antoinette 10/10 4119 days 0.0 0%
Bananna 10/10 4129 days 0.0 0%
Anne Cathala 10/10 4131 days 0.0 0%
gordy838 9/10 4139 days 0.0 0%
Janet May 9/10 4143 days 0.0 0%
Chuffy57 10/10 4143 days 0.0 0%
Tom Speed 10/10 4149 days 0.0 0%
Brenda 10/10 4158 days 0.0 0%
Jay & N 10/10 4169 days true 0.0 0%
MoJo 10/10 4177 days 0.0 0%
Tomasz Trawniczek 10/10 4177 days 0.0 0%
David Lewis 9/10 4191 days 0.0 0%
andy Cant 10/10 4192 days 0.0 0%
Catherine Robinson 10/10 4195 days 0.0 0%
Samantha Fenton 10/10 4200 days 0.0 0%
Judy Macdonald 10/10 4203 days 0.0 0%
Allison 10/10 4204 days true 0.0 0%
Gordon Lawrence 10/10 4237 days 0.0 0%
ivkemp 10/10 4245 days 0.0 0%
shonell 10/10 4268 days 0.0 0%
Aimee Marsh 10/10 4269 days 0.0 0%
Kathy Reily 10/10 4273 days 0.0 0%
CaptainObvious 10/10 4281 days 0.0 0%
Darren Rye 10/10 4286 days 0.0 0%
Dolphin 10/10 4292 days 0.0 0%
Robin 10/10 4301 days 0.0 0%
suedavies 10/10 4301 days 0.0 0%
Claire O'Donoghue 10/10 4308 days 0.0 0%
Mike 10/10 4308 days 0.0 0%
barbara hunn 8/10 4312 days 0.0 0%
Mike Morgan 10/10 4314 days 0.0 0%
Matt Cross 10/10 4315 days 0.0 0%
Denelle Adams 10/10 4319 days 0.0 0%
Belinda Keys 10/10 4321 days 0.0 0%
Tom Gordon 9/10 4321 days 0.0 0%
ashos 10/10 4321 days 0.0 0%
hottie 9/10 4321 days 0.0 0%
Karen Gibson 10/10 4321 days 0.0 0%
Michelle Mulgrew 10/10 4329 days 0.0 0%
thehammer 10/10 4342 days 0.0 0%
Ele 10/10 4344 days 0.0 0%
Bridget Cummins 10/10 4350 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

-2.00% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 125 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 -1.97%
198 -1.98%
199 -1.99%
200 -2.00%
201 -2.01%
202 -2.02%
203 -2.03%

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.