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

159 Valid Reviews

The Tongariro River Rafting experience has a total of 160 reviews. There are 159 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 159 valid reviews:

Rating Count Percentage
10/10 135
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%

97.92% Average

The raw data average (mean) for all the Tongariro River Rafting valid reviews is 97.92% and is based on 159 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 159 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

99.65%

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
Jan 10/10 35 days 99.81 100%
Alison B. 10/10 35 days 99.81 100%
John Olsen 10/10 66 days 99.31 100%
Peter 10/10 158 days 96.04 96%
Ben 10/10 188 days 94.4 95%
Ian 10/10 249 days 90.18 90%
Gary Walker 10/10 249 days 90.18 90%
Rowella Bacwaden 10/10 280 days 87.58 88%
Eileen H 10/10 339 days 81.79 82%
Brad 10/10 400 days 74.65 75%
Jared London 10/10 431 days 70.56 71%
Helen Turner 10/10 461 days 66.32 66%
James 10/10 492 days 61.64 62%
Isabelle_Qc 10/10 523 days 56.66 57%
Laura 10/10 553 days 51.55 52%
ACE Richardson 10/10 584 days 46.38 46%
Thea :-) 10/10 645 days 37.09 37%
William Webb 10/10 673 days 33.22 33%
Katelyn Mills 10/10 673 days 33.22 33%
Mrs Smith 10/10 673 days 33.22 33%
Mel 10/10 673 days 33.22 33%
Wayne Smith 10/10 673 days 33.22 33%
Kim 10/10 704 days 29.23 29%
Songyang Liu 10/10 704 days 29.23 29%
Mark Haydon 10/10 1038 days 5.51 6%
Kathryn Sherlock 10/10 1253 days 4.69 5%
Cherie Kemp 10/10 1253 days 4.69 5%
Renee Kemp 10/10 1253 days 4.69 5%
Patrick McIvor 10/10 1375 days 4.45 4%
Lengxi 10/10 1401 days true 4.4 4%
Uschi Pongratz 10/10 1409 days true 4.39 4%
Jessica Ruhland 10/10 1409 days true 4.39 4%
Paul 7/10 1414 days true 3.98 4%
Philip Piel 8/10 1414 days true 4.16 4%
Chiara 8/10 1414 days true 4.16 4%
Jess 10/10 1451 days true 4.3 4%
TashJ 10/10 1466 days 4.27 4%
Funny Schutt 10/10 1466 days 4.27 4%
Craig McCarthy 10/10 1496 days 4.22 4%
Tim K 10/10 1496 days 4.22 4%
Jack Shearer 10/10 1619 days 3.97 4%
Monika M 10/10 1649 days 3.92 4%
Ian Wilmot 10/10 1710 days 3.8 4%
Rodger Lamb 10/10 1741 days 3.74 4%
Leah Kyllo 10/10 1800 days 3.62 4%
Juliet Battersby 10/10 1800 days 3.62 4%
Chris C 10/10 1861 days 3.5 4%
Jessica 10/10 1953 days 3.32 3%
Mike Hollows 10/10 2045 days 3.14 3%
Monique Hollows 10/10 2106 days 3.02 3%
Thomas Subritzky 10/10 2106 days 3.02 3%
Helen Steele 10/10 2134 days 2.97 3%
andy godfrey 9/10 2165 days 2.91 3%
Chris Nisbet 8/10 2165 days 2.76 3%
Michelle Sanders 9/10 2196 days 2.85 3%
phil costello 8/10 2226 days 2.65 3%
Robyn Orchard 10/10 2257 days 2.73 3%
Gisele Phillips 9/10 2257 days 2.73 3%
E Wall 10/10 2257 days 2.73 3%
Julie 10/10 2287 days 2.67 3%
Little 10/10 2287 days 2.67 3%
Grahame Keast 10/10 2318 days 2.61 3%
Linda Bates 10/10 2318 days 2.61 3%
Morgan Buckingham 10/10 2318 days 2.61 3%
Bertiethebus 10/10 2440 days 2.37 2%
Julian Roots 10/10 2471 days 2.31 2%
Lynette Nicolson 10/10 2530 days 2.19 2%
RENs Rens 10/10 2530 days 2.19 2%
CKDNH 10/10 2591 days 2.07 2%
mattus 9/10 2591 days 2.07 2%
Ken 10/10 2591 days 2.07 2%
Kathy27 10/10 2591 days 2.07 2%
ladywithplants 9/10 2652 days 1.95 2%
princessliz 10/10 2652 days 1.95 2%
lariley 9/10 2652 days 1.95 2%
richardp 10/10 2683 days 1.89 2%
prasanth03 10/10 2714 days 1.83 2%
EllieW 10/10 2744 days 1.77 2%
Terry 10/10 2805 days 1.65 2%
Borderland 10/10 2836 days 1.59 2%
jimbob 10/10 2836 days 1.59 2%
mopheim 10/10 2836 days 1.59 2%
Mats Harstedt 9/10 2845 days true 1.58 2%
KateS 10/10 2865 days 1.54 2%
RubberDuck 10/10 2896 days 1.48 1%
Red_Hurring 10/10 2896 days 1.48 1%
travelpam 10/10 2896 days 1.48 1%
barjjake 9/10 2896 days 1.48 1%
cindyd 10/10 2927 days 1.41 1%
webstersuk 10/10 2927 days 1.41 1%
pezalone 10/10 2927 days 1.41 1%
WiseOwl 10/10 2927 days 1.41 1%
mausandhari 10/10 2927 days 1.41 1%
Pauline 10/10 2957 days 1.36 1%
JadesWorld 9/10 2957 days 1.36 1%
utstarfish 10/10 2957 days 1.36 1%
johnco78 10/10 2957 days 1.36 1%
jrwholey 10/10 2988 days 1.3 1%
ShawnM 10/10 2988 days 1.3 1%
Tarsh 10/10 2988 days 1.3 1%
lindahealey 10/10 2988 days 1.3 1%
campbell_steven 10/10 3018 days 1.24 1%
markrussell 10/10 3018 days 1.24 1%
Bayneer 10/10 3018 days 1.24 1%
jaspreetsohal86 10/10 3018 days 1.24 1%
kiwiholly 10/10 3018 days 1.24 1%
garethd1980 10/10 3018 days 1.24 1%
Mulliano 10/10 3018 days 1.24 1%
CathyK 10/10 3049 days 1.18 1%
silver 10/10 3049 days 1.18 1%
Meyerclan 10/10 3080 days 1.12 1%
poetania 10/10 3110 days 1.06 1%
southernboy611 10/10 3110 days 1.06 1%
EvilChris 10/10 3141 days 1.0 1%
nia427 10/10 3171 days 0.94 1%
Mags620 10/10 3171 days 0.94 1%
deanblackburn 10/10 3171 days 0.94 1%
Heatherorchard 10/10 3202 days 0.88 1%
BeetleBom 10/10 3202 days 0.88 1%
AnnaBain 10/10 3230 days 0.82 1%
geezer 10/10 3230 days 0.82 1%
Jen 10/10 3230 days 0.82 1%
busheybrew 10/10 3230 days 0.82 1%
painter47 10/10 3261 days 0.76 1%
ganbji 9/10 3261 days 0.76 1%
charles 10/10 3292 days 0.7 1%
alanos 9/10 3292 days 0.7 1%
teeneelz 10/10 3292 days 0.7 1%
Douggie 7/10 3383 days 0.48 0%
celticcolleen 10/10 3506 days 0.28 0%
MarcyMark 10/10 3536 days 0.22 0%
Susiekj 10/10 3567 days 0.16 0%
Kirsten 10/10 3595 days 0.11 0%
Ravi Chand 10/10 3626 days 0.05 0%
Sika 10/10 3626 days 0.05 0%
anthony mcclaren 9/10 3626 days 0.05 0%
menzel 10/10 3640 days true 0.02 0%
joannaw 10/10 3642 days true 0.02 0%
meisterbaumann 10/10 3657 days 0.0 0%
Stefanie Micheler 10/10 3668 days true 0.0 0%
Aussies 10/10 3687 days 0.0 0%
Jake Volle 10/10 3687 days 0.0 0%
Jess Woods 10/10 3748 days 0.0 0%
emmah 9/10 3784 days true 0.0 0%
Dave Roebuck 10/10 3810 days 0.0 0%
steph_m 9/10 3911 days 0.0 0%
JasonL 8/10 3913 days true 0.0 0%
Tanja Kirschmann 10/10 3915 days 0.0 0%
MicheyJ 10/10 3917 days 0.0 0%
caz 10/10 3937 days 0.0 0%
Cilla 10/10 3943 days true 0.0 0%
Hannah 10/10 3945 days 0.0 0%
karlijn schaap 10/10 4022 days 0.0 0%
Murray 10/10 4052 days 0.0 0%
Jan Burch 9/10 4164 days 0.0 0%
zane mirfin 10/10 4221 days 0.0 0%
becky 10/10 4248 days 0.0 0%
dave 9/10 4276 days 0.0 0%
shinylight 9/10 4308 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 Tongariro River Rafting experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-0.56% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 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 199 days.

The Tongariro River Rafting experience has been adjusted for 28 days. Adjustments are according to the following table.

Days Adjustment
25 -0.50%
26 -0.52%
27 -0.54%
28 -0.56%
29 -0.58%
30 -0.60%
31 -0.62%

Final Ranking Score

99%

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.