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 Tongariro River Rafting.

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.

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Cymen Crick

Rankers Owner

Tongariro River Rafting

Valid Reviews

167 Valid Reviews

The Tongariro River Rafting experience has a total of 169 reviews. There are 167 valid reviews that are included when calculating the ranking score and 2 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 167 valid reviews:

Rating Count Percentage
10/10 143
86%
9/10 17
10%
8/10 5
3%
7/10 2
1%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

98.02% Average

The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.02% and is based on 167 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

14 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 167 valid reviews, the experience has 14 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 14 face-to-face reviews:

Rating Count Percentage
10/10 8
57%
9/10 2
14%
8/10 3
21%
7/10 1
7%
6/10 0
0%
5/10 0
0%
4/10 0
0%
3/10 0
0%
2/10 0
0%
1/10 0
0%

92.14% Average

The raw data average (mean) for all the Tongariro River Rafting face-to-face reviews is 92.14% and is based on 14 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

99.57%

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
Madonna Thomson 10/10 124 days 100%
Amanda Thomson 10/10 399 days 92%
Peter Little 10/10 428 days 90%
Michaela Liff 10/10 673 days 75%
Kusum 10/10 1130 days 33%
Betty Dunn 10/10 1158 days 30%
Ruth 10/10 1738 days 5%
Gary Koh 10/10 1951 days 5%
Jan 10/10 1981 days 5%
Alison B. 10/10 1981 days 5%
John Olsen 10/10 2012 days 4%
Peter 10/10 2104 days 4%
Ben 10/10 2134 days 4%
Ian 10/10 2195 days 4%
Gary Walker 10/10 2195 days 4%
Rowella Bacwaden 10/10 2226 days 4%
Eileen H 10/10 2285 days 4%
Brad 10/10 2346 days 4%
Jared London 10/10 2377 days 4%
Helen Turner 10/10 2407 days 4%
James 10/10 2438 days 4%
Isabelle_Qc 10/10 2469 days 4%
Laura 10/10 2499 days 3%
ACE Richardson 10/10 2530 days 3%
Thea :-) 10/10 2591 days 3%
William Webb 10/10 2619 days 3%
Katelyn Mills 10/10 2619 days 3%
Mrs Smith 10/10 2619 days 3%
Mel 10/10 2619 days 3%
Wayne Smith 10/10 2619 days 3%
Kim 10/10 2650 days 3%
Songyang Liu 10/10 2650 days 3%
Mark Haydon 10/10 2984 days 3%
Kathryn Sherlock 10/10 3199 days 2%
Cherie Kemp 10/10 3199 days 2%
Renee Kemp 10/10 3199 days 2%
Patrick McIvor 10/10 3321 days 2%
Lengxi 10/10 3347 days 1%
Uschi Pongratz 10/10 3355 days 1%
Jessica Ruhland 10/10 3355 days 1%
Paul 7/10 3360 days 1%
Philip Piel 8/10 3360 days 1%
Chiara 8/10 3360 days 1%
Jess 10/10 3397 days 1%
TashJ 10/10 3412 days 2%
Funny Schutt 10/10 3412 days 2%
Craig McCarthy 10/10 3442 days 2%
Tim K 10/10 3442 days 2%
Jack Shearer 10/10 3565 days 1%
Monika M 10/10 3595 days 1%
Ian Wilmot 10/10 3656 days 1%
Rodger Lamb 10/10 3687 days 1%
Leah Kyllo 10/10 3746 days 1%
Juliet Battersby 10/10 3746 days 1%
Chris C 10/10 3807 days 1%
Jessica 10/10 3899 days 1%
Mike Hollows 10/10 3991 days 1%
Monique Hollows 10/10 4052 days 0%
Thomas Subritzky 10/10 4052 days 0%
hmsteele 10/10 4080 days 0%
andy godfrey 9/10 4111 days 0%
Chris Nisbet 8/10 4111 days 0%
Michelle Sanders 9/10 4142 days 0%
phil costello 8/10 4172 days 0%
Robyn Orchard 10/10 4203 days 0%
Gisele Phillips 9/10 4203 days 0%
E Wall 10/10 4203 days 0%
Julie 10/10 4233 days 0%
Little 10/10 4233 days 0%
Grahame Keast 10/10 4264 days 0%
Linda Bates 10/10 4264 days 0%
Morgan Buckingham 10/10 4264 days 0%
Bertiethebus 10/10 4386 days 1%
Julian Roots 10/10 4417 days 1%
Lynette Nicolson 10/10 4476 days 1%
RENs Rens 10/10 4476 days 1%
CKDNH 10/10 4537 days 1%
mattus 9/10 4537 days 1%
Ken 10/10 4537 days 1%
Kathy27 10/10 4537 days 1%
ladywithplants 9/10 4598 days 1%
princessliz 10/10 4598 days 1%
lariley 9/10 4598 days 1%
richardp 10/10 4629 days 1%
prasanth03 10/10 4660 days 1%
EllieW 10/10 4690 days 1%
Terry 10/10 4751 days 1%
Borderland 10/10 4782 days 1%
jimbob 10/10 4782 days 1%
mopheim 10/10 4782 days 1%
Mats Harstedt 9/10 4791 days 0%
KateS 10/10 4811 days 1%
RubberDuck 10/10 4842 days 1%
Red_Hurring 10/10 4842 days 1%
travelpam 10/10 4842 days 1%
barjjake 9/10 4842 days 1%
cindyd 10/10 4873 days 1%
webstersuk 10/10 4873 days 1%
pezalone 10/10 4873 days 1%
WiseOwl 10/10 4873 days 1%
mausandhari 10/10 4873 days 1%
Pauline 10/10 4903 days 1%
JadesWorld 9/10 4903 days 1%
utstarfish 10/10 4903 days 1%
johnco78 10/10 4903 days 1%
jrwholey 10/10 4934 days 1%
ShawnM 10/10 4934 days 1%
Tarsh 10/10 4934 days 1%
lindahealey 10/10 4934 days 1%
campbell_steven 10/10 4964 days 1%
markrussell 10/10 4964 days 1%
Bayneer 10/10 4964 days 1%
jaspreetsohal86 10/10 4964 days 1%
kiwiholly 10/10 4964 days 1%
garethd1980 10/10 4964 days 1%
Mulliano 10/10 4964 days 1%
CathyK 10/10 4995 days 1%
silver 10/10 4995 days 1%
Meyerclan 10/10 5026 days 1%
poetania 10/10 5056 days 1%
southernboy611 10/10 5056 days 1%
EvilChris 10/10 5087 days 1%
nia427 10/10 5117 days 1%
Mags620 10/10 5117 days 1%
deanblackburn 10/10 5117 days 1%
Heatherorchard 10/10 5148 days 1%
BeetleBom 10/10 5148 days 1%
AnnaBain 10/10 5176 days 1%
geezer 10/10 5176 days 1%
Jen 10/10 5176 days 1%
busheybrew 10/10 5176 days 1%
painter47 10/10 5207 days 1%
ganbji 9/10 5207 days 1%
charles 10/10 5238 days 1%
alanos 9/10 5238 days 1%
teeneelz 10/10 5238 days 1%
Douggie 7/10 5329 days 1%
celticcolleen 10/10 5452 days 1%
MarcyMark 10/10 5482 days 1%
Susiekj 10/10 5513 days 1%
Kirsten 10/10 5541 days 1%
Ravi Chand 10/10 5572 days 1%
Sika 10/10 5572 days 1%
anthony mcclaren 9/10 5572 days 1%
menzel 10/10 5586 days 0%
joannaw 10/10 5588 days 0%
meisterbaumann 10/10 5603 days 1%
Stefanie Micheler 10/10 5614 days 0%
Aussies 10/10 5633 days 1%
Jake Volle 10/10 5633 days 1%
Jess Woods 10/10 5694 days 1%
emmah 9/10 5730 days 0%
Dave Roebuck 10/10 5756 days 1%
steph_m 9/10 5856 days 1%
JasonL 8/10 5859 days 0%
Tanja Kirschmann 10/10 5861 days 1%
MicheyJ 10/10 5862 days 1%
caz 10/10 5883 days 1%
Cilla 10/10 5888 days 0%
Hannah 10/10 5891 days 1%
karlijn schaap 10/10 5968 days 1%
Murray 10/10 5998 days 1%
Jan Burch 9/10 6110 days 1%
zane mirfin 10/10 6166 days 1%
becky 10/10 6194 days 1%
dave 9/10 6222 days 1%
shinylight 9/10 6254 days 1%

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

Recent Reviews Adjustment

-2.23% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 61 days. However the Tongariro River Rafting 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 Tongariro River Rafting experience has been adjusted for 121 days. Adjustments are according to the following table.

Days Adjustment
118 -2.17%
119 -2.19%
120 -2.21%
121 -2.23%
122 -2.25%
123 -2.26%
124 -2.28%

Balancing Adjustment

0.22% 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

98%

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.