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 1982 days 3.26 100%
Bruce B 10/10 2010 days 3.21 98%
barry aling 10/10 2010 days 3.21 98%
luiz montanari 10/10 2041 days 3.15 96%
EMMANUEL DIAS DA SILVA 10/10 2072 days 3.09 95%
Philip Gattey 9/10 2072 days 3.09 95%
Ch. Verling 10/10 2102 days 3.03 93%
Ulises Guevara 10/10 2102 days 3.03 93%
Dusty 10/10 2102 days 3.03 93%
Sandra Downie 10/10 2407 days 2.43 75%
Gisle Forseth 9/10 2438 days 2.37 73%
Asmawi Wahab 10/10 2713 days 1.83 56%
Shelli Leverty 10/10 2713 days 1.83 56%
Doug Hamerton 10/10 2713 days 1.83 56%
Becky Ivers 10/10 2741 days 1.78 54%
Mark Stanford 10/10 2741 days 1.78 54%
Lesley barber 10/10 2772 days 1.72 53%
Barryatkinson 10/10 2772 days 1.72 53%
DonKendra1 10/10 2864 days 1.54 47%
Bushy 10/10 3016 days 1.24 38%
Calypso 10/10 3047 days 1.18 36%
yromanec 10/10 3047 days 1.18 36%
ladyharley 10/10 3078 days 1.12 34%
ChrisW 10/10 3078 days 1.12 34%
oldbiker 10/10 3078 days 1.12 34%
TheHoon 10/10 3078 days 1.12 34%
Banana 10/10 3107 days 1.06 33%
monakeehn 10/10 3107 days 1.06 33%
fdjavid 10/10 3107 days 1.06 33%
websterau 9/10 3107 days 1.06 33%
Dumyati 10/10 3107 days 1.06 33%
holidaze28 10/10 3138 days 1.0 31%
michaelclout 10/10 3138 days 1.0 31%
ZeroID 10/10 3138 days 1.0 31%
donald 10/10 3138 days 1.0 31%
mulhooligan 10/10 3138 days 1.0 31%
Stanton 10/10 3138 days 1.0 31%
kakapo66 10/10 3169 days 0.94 29%
HughConnor 10/10 3169 days 0.94 29%
ruudie012 10/10 3169 days 0.94 29%
lynne_florence 10/10 3169 days 0.94 29%
johnnyr 10/10 3169 days 0.94 29%
pro213 10/10 3169 days 0.94 29%
chrissywatson1711 10/10 3169 days 0.94 29%
pahoia 10/10 3169 days 0.94 29%
Iand 10/10 3169 days 0.94 29%
jillowen 9/10 3169 days 0.94 29%
AbeB 10/10 3199 days 0.88 27%
mikereid 10/10 3199 days 0.88 27%
Cmax 10/10 3230 days 0.82 25%
gnh2011 9/10 3230 days 0.82 25%
taylaw 10/10 3230 days 0.82 25%
mariarivas 10/10 3230 days 0.82 25%
flippy0 10/10 3259 days 0.77 23%
squids12 10/10 3351 days 0.59 18%
Rosco 9/10 3413 days 0.46 14%
blahutp 9/10 3413 days 0.46 14%
mrkunz 10/10 3413 days 0.46 14%
clouddreamer 10/10 3413 days 0.46 14%
May 10/10 3413 days 0.46 14%
mitchaoc 10/10 3444 days 0.4 12%
Welshy01 10/10 3444 days 0.4 12%
pamc 10/10 3444 days 0.4 12%
zaphood 10/10 3444 days 0.4 12%
cruisequeens 10/10 3472 days 0.35 11%
adriennevergos 10/10 3472 days 0.35 11%
damondosterhus 10/10 3472 days 0.35 11%
janetc260 10/10 3472 days 0.35 11%
marpet 10/10 3503 days 0.29 9%
roofie 10/10 3503 days 0.29 9%
musicman 10/10 3503 days 0.29 9%
Merran 10/10 3503 days 0.29 9%
traceymarcus1 10/10 3503 days 0.29 9%
Budley1 10/10 3534 days 0.23 7%
vjr 10/10 3534 days 0.23 7%
DukeMatthews 10/10 3534 days 0.23 7%
hellsknipe356 10/10 3595 days 0.11 3%
KDStorey 10/10 3595 days 0.11 3%
robinson 10/10 3595 days 0.11 3%
JoeLeeKnipe 10/10 3595 days 0.11 3%
lstenhouse 10/10 3624 days 0.05 2%
doylouys 10/10 3655 days 0.0 0%
Jorgy 10/10 3686 days 0.0 0%
Phil Thurbon 9/10 3778 days 0.0 0%
awolnow 10/10 3809 days 0.0 0%
spb97 9/10 3809 days 0.0 0%
stealhorsecowboy 10/10 3809 days 0.0 0%
smithy55 9/10 3809 days 0.0 0%
fitbear 9/10 3809 days 0.0 0%
zebradiver 8/10 3809 days 0.0 0%
cowboyjohn 10/10 3837 days 0.0 0%
wahteh 10/10 3837 days 0.0 0%
tommarbru 10/10 3837 days 0.0 0%
Mathias 10/10 3837 days 0.0 0%
JParkinson 10/10 3837 days 0.0 0%
sinead drummy 10/10 3868 days 0.0 0%
philip andrew-artha 10/10 3868 days 0.0 0%
bmaier 10/10 3868 days 0.0 0%
alongthorn 10/10 3868 days 0.0 0%
KENMCD 10/10 3868 days 0.0 0%
kimreed 10/10 3899 days 0.0 0%
joshe051 10/10 3899 days 0.0 0%
Travelling_Kiwi 10/10 3899 days 0.0 0%
John Stevens 10/10 3929 days 0.0 0%
big_rog 10/10 3929 days 0.0 0%
HairyHaggis 10/10 3929 days 0.0 0%
Mary Long 10/10 3929 days 0.0 0%
stegall 10/10 3929 days 0.0 0%
Maureen Lee 10/10 3960 days 0.0 0%
monkey 10/10 3960 days 0.0 0%
renaud bonnet 10/10 3989 days 0.0 0%
George Wheatley 10/10 4112 days 0.0 0%
eunie 10/10 4143 days 0.0 0%
antoinette 10/10 4144 days 0.0 0%
Bananna 10/10 4154 days 0.0 0%
Anne Cathala 10/10 4156 days 0.0 0%
gordy838 9/10 4164 days 0.0 0%
Janet May 9/10 4168 days 0.0 0%
Chuffy57 10/10 4168 days 0.0 0%
Tom Speed 10/10 4174 days 0.0 0%
Brenda 10/10 4183 days 0.0 0%
Jay & N 10/10 4194 days true 0.0 0%
MoJo 10/10 4202 days 0.0 0%
Tomasz Trawniczek 10/10 4202 days 0.0 0%
David Lewis 9/10 4216 days 0.0 0%
andy Cant 10/10 4217 days 0.0 0%
Catherine Robinson 10/10 4220 days 0.0 0%
Samantha Fenton 10/10 4225 days 0.0 0%
Judy Macdonald 10/10 4228 days 0.0 0%
Allison 10/10 4229 days true 0.0 0%
Gordon Lawrence 10/10 4261 days 0.0 0%
ivkemp 10/10 4270 days 0.0 0%
shonell 10/10 4293 days 0.0 0%
Aimee Marsh 10/10 4294 days 0.0 0%
Kathy Reily 10/10 4298 days 0.0 0%
CaptainObvious 10/10 4306 days 0.0 0%
Darren Rye 10/10 4310 days 0.0 0%
Dolphin 10/10 4317 days 0.0 0%
Robin 10/10 4326 days 0.0 0%
suedavies 10/10 4326 days 0.0 0%
Claire O'Donoghue 10/10 4332 days 0.0 0%
Mike 10/10 4332 days 0.0 0%
barbara hunn 8/10 4337 days 0.0 0%
Mike Morgan 10/10 4339 days 0.0 0%
Matt Cross 10/10 4340 days 0.0 0%
Denelle Adams 10/10 4344 days 0.0 0%
Belinda Keys 10/10 4346 days 0.0 0%
Tom Gordon 9/10 4346 days 0.0 0%
ashos 10/10 4346 days 0.0 0%
hottie 9/10 4346 days 0.0 0%
Karen Gibson 10/10 4346 days 0.0 0%
Michelle Mulgrew 10/10 4353 days 0.0 0%
thehammer 10/10 4367 days 0.0 0%
Ele 10/10 4368 days 0.0 0%
Bridget Cummins 10/10 4374 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

-2.14% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 122 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 -2.11%
198 -2.12%
199 -2.13%
200 -2.14%
201 -2.15%
202 -2.16%
203 -2.17%

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.