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 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.

Nick Morrison's avatar

Nick Morrison

Rankers owner

Tongariro River Rafting

Valid Reviews

161 Valid Reviews

The Tongariro River Rafting experience has a total of 162 reviews. There are 161 valid reviews that are included when calculating the ranking score and 1 invalid review 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 161 valid reviews:

Rating Count Percentage
10/10 137
85%
9/10 17
11%
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%

97.95% Average

The raw data average (mean) for all the Tongariro River Rafting valid reviews is 97.95% and is based on 161 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 161 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

99.40%

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
Ruth 10/10 318 days 100%
Gary Koh 10/10 531 days 66%
Jan 10/10 561 days 60%
Alison B. 10/10 561 days 60%
John Olsen 10/10 592 days 54%
Peter 10/10 684 days 38%
Ben 10/10 714 days 33%
Ian 10/10 775 days 25%
Gary Walker 10/10 775 days 25%
Rowella Bacwaden 10/10 806 days 22%
Eileen H 10/10 865 days 16%
Brad 10/10 926 days 11%
Jared London 10/10 957 days 10%
Helen Turner 10/10 987 days 8%
James 10/10 1018 days 7%
Isabelle_Qc 10/10 1049 days 6%
Laura 10/10 1079 days 6%
ACE Richardson 10/10 1110 days 6%
Thea :-) 10/10 1171 days 6%
William Webb 10/10 1199 days 6%
Katelyn Mills 10/10 1199 days 6%
Mrs Smith 10/10 1199 days 6%
Mel 10/10 1199 days 6%
Wayne Smith 10/10 1199 days 6%
Kim 10/10 1230 days 6%
Songyang Liu 10/10 1230 days 6%
Mark Haydon 10/10 1564 days 5%
Kathryn Sherlock 10/10 1779 days 4%
Cherie Kemp 10/10 1779 days 4%
Renee Kemp 10/10 1779 days 4%
Patrick McIvor 10/10 1901 days 4%
Lengxi 10/10 1927 days 2%
Uschi Pongratz 10/10 1935 days 2%
Jessica Ruhland 10/10 1935 days 2%
Paul 7/10 1940 days 2%
Philip Piel 8/10 1940 days 2%
Chiara 8/10 1940 days 2%
Jess 10/10 1977 days 2%
TashJ 10/10 1992 days 4%
Funny Schutt 10/10 1992 days 4%
Craig McCarthy 10/10 2022 days 4%
Tim K 10/10 2022 days 4%
Jack Shearer 10/10 2145 days 3%
Monika M 10/10 2175 days 3%
Ian Wilmot 10/10 2236 days 3%
Rodger Lamb 10/10 2267 days 3%
Leah Kyllo 10/10 2326 days 3%
Juliet Battersby 10/10 2326 days 3%
Chris C 10/10 2387 days 3%
Jessica 10/10 2479 days 3%
Mike Hollows 10/10 2571 days 2%
Monique Hollows 10/10 2632 days 2%
Thomas Subritzky 10/10 2632 days 2%
hmsteele 10/10 2660 days 2%
andy godfrey 9/10 2691 days 2%
Chris Nisbet 8/10 2691 days 2%
Michelle Sanders 9/10 2722 days 2%
phil costello 8/10 2752 days 2%
Robyn Orchard 10/10 2783 days 2%
Gisele Phillips 9/10 2783 days 2%
E Wall 10/10 2783 days 2%
Julie 10/10 2813 days 2%
Little 10/10 2813 days 2%
Grahame Keast 10/10 2844 days 2%
Linda Bates 10/10 2844 days 2%
Morgan Buckingham 10/10 2844 days 2%
Bertiethebus 10/10 2966 days 2%
Julian Roots 10/10 2997 days 1%
Lynette Nicolson 10/10 3056 days 1%
RENs Rens 10/10 3056 days 1%
CKDNH 10/10 3117 days 1%
mattus 9/10 3117 days 1%
Ken 10/10 3117 days 1%
Kathy27 10/10 3117 days 1%
ladywithplants 9/10 3178 days 1%
princessliz 10/10 3178 days 1%
lariley 9/10 3178 days 1%
richardp 10/10 3209 days 1%
prasanth03 10/10 3240 days 1%
EllieW 10/10 3270 days 1%
Terry 10/10 3331 days 1%
Borderland 10/10 3362 days 1%
jimbob 10/10 3362 days 1%
mopheim 10/10 3362 days 1%
Mats Harstedt 9/10 3371 days 0%
KateS 10/10 3391 days 1%
RubberDuck 10/10 3422 days 0%
Red_Hurring 10/10 3422 days 0%
travelpam 10/10 3422 days 0%
barjjake 9/10 3422 days 0%
cindyd 10/10 3453 days 0%
webstersuk 10/10 3453 days 0%
pezalone 10/10 3453 days 0%
WiseOwl 10/10 3453 days 0%
mausandhari 10/10 3453 days 0%
Pauline 10/10 3483 days 0%
JadesWorld 9/10 3483 days 0%
utstarfish 10/10 3483 days 0%
johnco78 10/10 3483 days 0%
jrwholey 10/10 3514 days 0%
ShawnM 10/10 3514 days 0%
Tarsh 10/10 3514 days 0%
lindahealey 10/10 3514 days 0%
campbell_steven 10/10 3544 days 0%
markrussell 10/10 3544 days 0%
Bayneer 10/10 3544 days 0%
jaspreetsohal86 10/10 3544 days 0%
kiwiholly 10/10 3544 days 0%
garethd1980 10/10 3544 days 0%
Mulliano 10/10 3544 days 0%
CathyK 10/10 3575 days 0%
silver 10/10 3575 days 0%
Meyerclan 10/10 3606 days 0%
poetania 10/10 3636 days 0%
southernboy611 10/10 3636 days 0%
EvilChris 10/10 3667 days 1%
nia427 10/10 3697 days 1%
Mags620 10/10 3697 days 1%
deanblackburn 10/10 3697 days 1%
Heatherorchard 10/10 3728 days 1%
BeetleBom 10/10 3728 days 1%
AnnaBain 10/10 3756 days 1%
geezer 10/10 3756 days 1%
Jen 10/10 3756 days 1%
busheybrew 10/10 3756 days 1%
painter47 10/10 3787 days 1%
ganbji 9/10 3787 days 1%
charles 10/10 3818 days 1%
alanos 9/10 3818 days 1%
teeneelz 10/10 3818 days 1%
Douggie 7/10 3909 days 1%
celticcolleen 10/10 4032 days 1%
MarcyMark 10/10 4062 days 1%
Susiekj 10/10 4093 days 1%
Kirsten 10/10 4121 days 1%
Ravi Chand 10/10 4152 days 1%
Sika 10/10 4152 days 1%
anthony mcclaren 9/10 4152 days 1%
menzel 10/10 4166 days 1%
joannaw 10/10 4168 days 1%
meisterbaumann 10/10 4183 days 1%
Stefanie Micheler 10/10 4194 days 1%
Aussies 10/10 4213 days 1%
Jake Volle 10/10 4213 days 1%
Jess Woods 10/10 4274 days 1%
emmah 9/10 4310 days 1%
Dave Roebuck 10/10 4336 days 1%
steph_m 9/10 4437 days 1%
JasonL 8/10 4439 days 1%
Tanja Kirschmann 10/10 4441 days 1%
MicheyJ 10/10 4443 days 1%
caz 10/10 4463 days 1%
Cilla 10/10 4469 days 1%
Hannah 10/10 4471 days 1%
karlijn schaap 10/10 4548 days 1%
Murray 10/10 4578 days 1%
Jan Burch 9/10 4690 days 1%
zane mirfin 10/10 4747 days 1%
becky 10/10 4774 days 1%
dave 9/10 4802 days 1%
shinylight 9/10 4834 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

-2.80% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 91 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 200 days. Adjustments are according to the following table.

Days Adjustment
197 -2.76%
198 -2.77%
199 -2.79%
200 -2.80%
201 -2.82%
202 -2.83%
203 -2.84%

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.