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Ranking Score Explained

G'day, 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 Rafting 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.

Cymen Crick's avatar

Cymen Crick

Rankers Owner

Rafting New Zealand

Valid Reviews

260 Valid Reviews

The Rafting New Zealand experience has a total of 267 reviews. There are 260 valid reviews that are included when calculating the ranking score and 7 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.

Below is the distribution of ratings for the 260 valid reviews:

Rating Count Percentage
10/10 245
94%
9/10 10
4%
8/10 3
1%
7/10 1
0%
6/10 1
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

99.12% Average

The raw data average (mean) for all the Rafting New Zealand valid reviews is 99.12% and is based on 260 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.

Face-to-Face Reviews

11 Face-to-Face Reviews

The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.

More about face-to-face reviews

Within the 260 valid reviews, the experience has 11 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 11 face-to-face reviews:

Rating Count Percentage
10/10 4
36%
9/10 5
45%
8/10 1
9%
7/10 1
9%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

90.91% Average

The raw data average (mean) for all the Rafting New Zealand face-to-face reviews is 90.91% and is based on 11 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

99.37%

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
Darryll Eliason 10/10 1538 days 100%
Jordan Kapinga 10/10 1600 days 81%
Chelsie Robertson 10/10 1600 days 81%
Tanea Eru 10/10 1600 days 81%
Rose Ransfield 10/10 1600 days 81%
Kerry 10/10 1600 days 81%
Sarah 10/10 1600 days 81%
Hannah 10/10 1843 days 51%
Peter Parker 10/10 1935 days 49%
ELAINE GORDON 10/10 2057 days 47%
Andrew Taylor 10/10 2088 days 46%
Lino 9/10 2178 days 44%
Jordan Bell 10/10 2238 days 43%
Master Bell 10/10 2239 days 43%
Poppy 10/10 2239 days 43%
Te Wai 10/10 2239 days 43%
Storm 10/10 2239 days 43%
James 10/10 2269 days 42%
TB 10/10 2269 days 42%
Damian 10/10 2269 days 42%
Paora 10/10 2331 days 41%
Suzette 10/10 2422 days 39%
Aaron 10/10 2422 days 39%
Arizona 10/10 2422 days 39%
Blake 10/10 2422 days 39%
Mark Brabyn 10/10 2422 days 39%
Erica 10/10 2422 days 39%
Victoria 10/10 2422 days 39%
Heather 10/10 2453 days 39%
Wikitoria Tangihaere 10/10 2512 days 38%
Tulip Te Whata 10/10 2542 days 37%
Kahui 10/10 2604 days 36%
Vicki Mayo 10/10 2633 days 35%
JessicaAnne 10/10 2695 days 34%
amanda pritchard 10/10 2695 days 34%
Tiwana Tibble 9/10 2725 days 33%
Nancy Milligan 10/10 2756 days 33%
KC B 10/10 2845 days 31%
Brandon Cassidy 9/10 2850 days 18%
Nicole Murphy 10/10 2876 days 30%
Sharon Madsen 10/10 2876 days 30%
Bullet 10/10 2907 days 30%
Sarah H 10/10 2998 days 28%
Shadae Gibson 10/10 2998 days 28%
Rain Ruan 10/10 3060 days 26%
liang wan 10/10 3060 days 26%
Leila Martley 10/10 3060 days 26%
Sassan 10/10 3121 days 25%
Oliver Glosby 10/10 3121 days 25%
Jo Lee 10/10 3151 days 25%
Rish Balejko 10/10 3151 days 25%
David Julius 10/10 3151 days 25%
Matt Lee 10/10 3151 days 25%
Miroslav Bazala 10/10 3182 days 24%
Judah Wikeepa 10/10 3182 days 24%
Torran Lepper 10/10 3183 days 24%
Anders Hauke 10/10 3209 days 14%
Mr Bubbles 10/10 3211 days 23%
Rani Smallman 10/10 3212 days 23%
Anna Doßler 7/10 3218 days 12%
Therese and Matthias 10/10 3229 days 14%
Suzy Danko 10/10 3242 days 23%
Sue Pagura 10/10 3242 days 23%
evan huang 10/10 3242 days 23%
Selina You 8/10 3273 days 22%
Kyla Russell 10/10 3273 days 22%
Jackie Russell 10/10 3273 days 22%
Tash Paora 10/10 3273 days 22%
Anna Thrift 10/10 3304 days 22%
Sven Koch 10/10 3304 days 22%
Kerri Butler 10/10 3334 days 21%
Michelle & Mark Forte 10/10 3334 days 21%
Ashley Wehi 10/10 3335 days 21%
Tony Bennet 10/10 3395 days 20%
Dana Calvin 10/10 3395 days 20%
fran neal 10/10 3487 days 18%
Sharee Lane 10/10 3487 days 18%
dannielle porteous 10/10 3487 days 18%
Jethro Cooke 10/10 3517 days 17%
Michael Bowie 10/10 3517 days 17%
lillyonsod@gmail.com Onsod 10/10 3576 days 16%
Bernd Heimhuber 10/10 3607 days 15%
Loz Picen 10/10 3638 days 15%
Nico Duval 10/10 3699 days 14%
Anahera Whaanga 10/10 3853 days 10%
Adam Burden 10/10 3883 days 10%
Laura Pugh 10/10 3883 days 10%
Andreas Efstathiou 10/10 3883 days 10%
Danley Vince 10/10 3883 days 10%
Tony Holden 10/10 3883 days 10%
Lacey Hollins 10/10 3913 days 9%
yuk lynn chen 10/10 3914 days 9%
Kimberley Thomas 10/10 3914 days 9%
Georgia Macfarlane 10/10 3914 days 9%
Jordan Putt 10/10 3914 days 9%
rafting5664xxqwerty 10/10 3914 days 9%
Sarah Portas 10/10 3914 days 9%
Shay Moon 10/10 3941 days 9%
Tony Billett 10/10 3973 days 8%
Keith Nelson 10/10 3973 days 8%
Dee 10/10 4034 days 7%
Jess Perry 10/10 4034 days 7%
Lisa Kemp 10/10 4034 days 7%
Callum Learmonth 10/10 4065 days 6%
Glen Liu 10/10 4065 days 6%
Aly Learmonth 10/10 4065 days 6%
Tamar Learmonth 10/10 4065 days 6%
Bindi Thomas 10/10 4126 days 5%
Raj Paul 10/10 4187 days 4%
Melissa Ward 10/10 4248 days 2%
Quintin Hislop 10/10 4248 days 2%
Jasmine Hall 10/10 4248 days 2%
Gabrielle & Shawn Scott 10/10 4307 days 1%
isharpe 10/10 4307 days 1%
Mungy 8/10 4338 days 1%
eddieslee 10/10 4338 days 1%
maureen slee 10/10 4338 days 1%
David Butler 10/10 4338 days 1%
Jake Sommers 10/10 4369 days 0%
WendyRae 9/10 4430 days 10%
annette7B 10/10 4430 days 10%
Emma White 9/10 4430 days 10%
justinstewart 10/10 4460 days 10%
Emilydodo 10/10 4460 days 10%
shackni 10/10 4522 days 10%
PihaIndy 10/10 4522 days 10%
Kirsty 10/10 4522 days 10%
Kiz 10/10 4522 days 10%
willmack 10/10 4522 days 10%
stella71 10/10 4552 days 10%
BNZ_NewPlymouth 10/10 4583 days 10%
Abbott 10/10 4583 days 10%
Arizona8 10/10 4583 days 10%
Binnsie 10/10 4613 days 10%
nsalter05 10/10 4613 days 10%
joauer 10/10 4613 days 10%
lizy_t01 10/10 4644 days 10%
hottine 10/10 4644 days 10%
georger 10/10 4644 days 10%
cravedesign 10/10 4644 days 10%
Deez 10/10 4644 days 10%
sam26 10/10 4644 days 10%
ffitz1 10/10 4644 days 10%
banana2879 10/10 4673 days 10%
monni 10/10 4704 days 10%
adebortoli 10/10 4704 days 10%
Brewgardner 10/10 4704 days 10%
jackson78 6/10 4704 days 9%
nscalder 10/10 4704 days 10%
Niccastle 10/10 4704 days 10%
mike3950 10/10 4704 days 10%
Kiana 10/10 4704 days 10%
sway 10/10 4704 days 10%
mazandbaz4eva 10/10 4704 days 10%
JosieMP 10/10 4704 days 10%
JoBullock 10/10 4704 days 10%
SJMJTL 10/10 4735 days 10%
hetheringtons 10/10 4735 days 10%
Ganga 10/10 4735 days 10%
Maca 10/10 4735 days 10%
Katiepettigrew 10/10 4735 days 10%
Mueveese21 10/10 4735 days 10%
shague 10/10 4765 days 10%
andreal 10/10 4765 days 10%
lucyw 10/10 4765 days 10%
Caro954 10/10 4765 days 10%
scubafaris 10/10 4765 days 10%
Xenathedog 10/10 4796 days 10%
sandwa22 10/10 4796 days 10%
Tennantm 10/10 4796 days 10%
mrsteed 10/10 4826 days 10%
vtribello 10/10 4826 days 10%
LucyM 10/10 4826 days 10%
Bretherton 10/10 4857 days 10%
kathryn_mildon 10/10 4857 days 10%
Georgia_and_Paul 10/10 4857 days 10%
potplantman 10/10 4857 days 10%
TommyT 10/10 4857 days 10%
Deloitte_ERS_NZ 10/10 4857 days 10%
Robyn88 10/10 4888 days 10%
aryav 10/10 4888 days 10%
gems 9/10 4888 days 10%
EmmaKara 10/10 4918 days 10%
Karlabalfour 10/10 4918 days 10%
taritabaquie 10/10 4918 days 10%
Naez 10/10 4918 days 10%
janeti 10/10 4918 days 10%
josh 10/10 4949 days 10%
kiwiguy 10/10 4949 days 10%
Pitbull 10/10 4949 days 10%
the_catalpa 10/10 4979 days 10%
sscharlott 10/10 4979 days 10%
Khipperson 10/10 4979 days 10%
TarshKTM125 10/10 4979 days 10%
dnlpry 10/10 4979 days 10%
jessid 10/10 4979 days 10%
Juls 10/10 4979 days 10%
hammyp 10/10 4979 days 10%
Adrian Beckett 9/10 5006 days 6%
Carolin 9/10 5009 days 6%
PFA 10/10 5010 days 10%
lycrawford85 10/10 5010 days 10%
richardjrussell 10/10 5010 days 10%
matineeidol74 10/10 5010 days 10%
zxangel 10/10 5010 days 10%
Stefan Morris 9/10 5029 days 6%
Jessie Currie 9/10 5029 days 6%
Daniel Lang 8/10 5031 days 6%
erikp13 10/10 5038 days 10%
wannaraft 10/10 5038 days 10%
hakim0101 10/10 5038 days 10%
Scd44 10/10 5038 days 10%
Fiona Page 10/10 5069 days 10%
marriners 10/10 5069 days 10%
bigL 10/10 5069 days 10%
KarenKennedy 10/10 5069 days 10%
thebouzaids 10/10 5069 days 10%
austin5 10/10 5069 days 10%
bentley_hewitts 10/10 5069 days 10%
pamaho 10/10 5069 days 10%
Lizard 10/10 5069 days 10%
ewok74 10/10 5069 days 10%
Canty35 10/10 5069 days 10%
Rustyd 10/10 5100 days 10%
caprius 10/10 5130 days 10%
fleurtie 10/10 5130 days 10%
Tanja 10/10 5161 days 10%
katiec82 10/10 5222 days 10%
Kyle88 10/10 5222 days 10%
gemmamalpas 10/10 5222 days 10%
Nelli 10/10 5222 days 10%
tuyphon 10/10 5283 days 10%
Sam Bishop 10/10 5375 days 10%
Nikki Brown 10/10 5375 days 10%
Andreas Backes 10/10 5375 days 10%
Anna 10/10 5403 days 10%
anaru 10/10 5403 days 10%
Jazman 10/10 5434 days 10%
stroalki 10/10 5434 days 10%
Sam Jones 10/10 5434 days 10%
saswoo 10/10 5465 days 10%
Hmabch 10/10 5465 days 10%
Andre Peklaj 10/10 5465 days 10%
Jane 10/10 5465 days 10%
liz 10/10 5465 days 10%
fridays 10/10 5465 days 10%
kiwifamily 10/10 5495 days 10%
zenzen 10/10 5495 days 10%
Emz 10/10 5526 days 10%
Cayla Perry 10/10 5526 days 10%
Dudley 10/10 5556 days 10%
Jason Wood 10/10 5556 days 10%
Siobhain O'Shea 10/10 5648 days 10%
Cat 10/10 5709 days 10%
Kate 10/10 5734 days 10%
Caron Dzermajko 10/10 5747 days 10%
Kelly 10/10 5775 days 6%
Leanne 10/10 5839 days 10%
scott ross 10/10 5844 days 10%
Andrew 10/10 5892 days 6%

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 Rafting New Zealand experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-4.03% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 44 days. However the Rafting 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 Rafting New Zealand experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
… …
197 -3.97%
198 -3.99%
199 -4.01%
200 -4.03%
201 -4.05%
202 -4.07%
203 -4.09%
… …

Balancing Adjustment

0.40% 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

96%

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.