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

144 Valid Reviews

The Tongariro River Rafting experience has a total of 144 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.

Below is the distribution of ratings for the 144 valid reviews:

Rating Count Percentage
10/10 120
83%
9/10 17
12%
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%

97.71% Average

The raw data average (mean) for all the Tongariro River Rafting valid reviews is 97.71% and is based on 144 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 144 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

98.76%

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
ACE Richardson 10/10 26 days 99.89 100%
Thea :-) 10/10 88 days 98.77 99%
William Webb 10/10 115 days 97.9 98%
Katelyn Mills 10/10 116 days 97.87 98%
Mrs Smith 10/10 116 days 97.87 98%
Mel 10/10 116 days 97.87 98%
Wayne Smith 10/10 116 days 97.87 98%
Kim 10/10 146 days 96.62 97%
Songyang Liu 10/10 146 days 96.62 97%
Mark Haydon 10/10 480 days 63.49 63%
Kathryn Sherlock 10/10 695 days 30.35 29%
Cherie Kemp 10/10 695 days 30.35 29%
Renee Kemp 10/10 695 days 30.35 29%
Patrick McIvor 10/10 817 days 17.25 16%
Lengxi 10/10 844 days true 17.98 17%
Uschi Pongratz 10/10 852 days true 17.23 16%
Jessica Ruhland 10/10 852 days true 17.23 16%
Paul 7/10 857 days true 16.77 16%
Philip Piel 8/10 857 days true 16.77 16%
Chiara 8/10 857 days true 16.77 16%
Jess 10/10 894 days true 13.68 13%
TashJ 10/10 908 days 10.54 9%
Funny Schutt 10/10 908 days 10.54 9%
Craig McCarthy 10/10 939 days 8.86 8%
Tim K 10/10 939 days 8.86 8%
Jack Shearer 10/10 1061 days 5.18 4%
Monika M 10/10 1091 days 5.0 4%
Ian Wilmot 10/10 1152 days 4.92 4%
Rodger Lamb 10/10 1183 days 4.88 4%
Leah Kyllo 10/10 1242 days 4.8 3%
Juliet Battersby 10/10 1242 days 4.8 3%
Chris C 10/10 1303 days 4.72 3%
Jessica 10/10 1395 days 4.59 3%
Mike Hollows 10/10 1487 days 4.46 3%
Monique Hollows 10/10 1548 days 4.38 3%
Thomas Subritzky 10/10 1549 days 4.38 3%
Helen Steele 10/10 1577 days 4.34 3%
andy godfrey 9/10 1608 days 4.3 3%
Chris Nisbet 8/10 1608 days 4.3 3%
Michelle Sanders 9/10 1639 days 4.25 3%
phil costello 8/10 1669 days 4.21 3%
Robyn Orchard 10/10 1700 days 4.17 3%
Gisele Phillips 9/10 1700 days 4.17 3%
E Wall 10/10 1700 days 4.17 3%
Julie 10/10 1729 days 4.13 3%
Little 10/10 1729 days 4.13 3%
Grahame Keast 10/10 1760 days 4.09 3%
Linda Bates 10/10 1760 days 4.09 3%
Morgan Buckingham 10/10 1760 days 4.09 3%
Bertiethebus 10/10 1883 days 3.92 3%
Julian Roots 10/10 1914 days 3.88 3%
Lynette Nicolson 10/10 1973 days 3.8 2%
RENs Rens 10/10 1973 days 3.8 2%
CKDNH 10/10 2034 days 3.71 2%
mattus 9/10 2034 days 3.71 2%
Ken 10/10 2034 days 3.71 2%
Kathy27 10/10 2034 days 3.71 2%
ladywithplants 9/10 2094 days 3.63 2%
princessliz 10/10 2094 days 3.63 2%
lariley 9/10 2094 days 3.63 2%
richardp 10/10 2125 days 3.59 2%
prasanth03 10/10 2156 days 3.55 2%
EllieW 10/10 2186 days 3.51 2%
Terry 10/10 2248 days 3.42 2%
Borderland 10/10 2279 days 3.38 2%
jimbob 10/10 2279 days 3.38 2%
mopheim 10/10 2279 days 3.38 2%
Mats Harstedt 9/10 2288 days true 4.04 3%
KateS 10/10 2308 days 3.34 2%
RubberDuck 10/10 2339 days 3.3 2%
Red_Hurring 10/10 2339 days 3.3 2%
travelpam 10/10 2339 days 3.3 2%
barjjake 9/10 2339 days 3.3 2%
cindyd 10/10 2370 days 3.25 2%
webstersuk 10/10 2370 days 3.25 2%
pezalone 10/10 2370 days 3.25 2%
WiseOwl 10/10 2370 days 3.25 2%
mausandhari 10/10 2370 days 3.25 2%
Pauline 10/10 2400 days 3.21 2%
JadesWorld 9/10 2400 days 3.21 2%
utstarfish 10/10 2400 days 3.21 2%
johnco78 10/10 2400 days 3.21 2%
jrwholey 10/10 2431 days 3.17 2%
ShawnM 10/10 2431 days 3.17 2%
Tarsh 10/10 2431 days 3.17 2%
lindahealey 10/10 2431 days 3.17 2%
campbell_steven 10/10 2460 days 3.13 2%
markrussell 10/10 2460 days 3.13 2%
Bayneer 10/10 2460 days 3.13 2%
jaspreetsohal86 10/10 2460 days 3.13 2%
kiwiholly 10/10 2460 days 3.13 2%
garethd1980 10/10 2460 days 3.13 2%
Mulliano 10/10 2460 days 3.13 2%
CathyK 10/10 2491 days 3.09 2%
silver 10/10 2491 days 3.09 2%
Meyerclan 10/10 2522 days 3.05 2%
poetania 10/10 2552 days 3.0 2%
southernboy611 10/10 2552 days 3.0 2%
EvilChris 10/10 2583 days 2.96 2%
nia427 10/10 2614 days 2.92 2%
Mags620 10/10 2614 days 2.92 2%
deanblackburn 10/10 2614 days 2.92 2%
Heatherorchard 10/10 2645 days 2.88 2%
BeetleBom 10/10 2645 days 2.88 2%
AnnaBain 10/10 2673 days 2.84 1%
geezer 10/10 2673 days 2.84 1%
Jen 10/10 2673 days 2.84 1%
busheybrew 10/10 2673 days 2.84 1%
painter47 10/10 2704 days 2.8 1%
ganbji 9/10 2704 days 2.8 1%
charles 10/10 2735 days 2.75 1%
alanos 9/10 2735 days 2.75 1%
teeneelz 10/10 2735 days 2.75 1%
Douggie 7/10 2825 days 2.63 1%
celticcolleen 10/10 2948 days 2.46 1%
MarcyMark 10/10 2979 days 2.42 1%
Susiekj 10/10 3010 days 2.38 1%
Kirsten 10/10 3038 days 2.34 1%
Ravi Chand 10/10 3069 days 2.3 1%
Sika 10/10 3069 days 2.3 1%
anthony mcclaren 9/10 3069 days 2.3 1%
menzel 10/10 3083 days true 2.73 1%
joannaw 10/10 3085 days true 2.73 1%
meisterbaumann 10/10 3100 days 2.25 1%
Stefanie Micheler 10/10 3111 days true 2.69 1%
Aussies 10/10 3130 days 2.21 1%
Jake Volle 10/10 3130 days 2.21 1%
Jess Woods 10/10 3190 days 2.13 1%
emmah 9/10 3226 days true 2.5 1%
Dave Roebuck 10/10 3252 days 2.05 1%
steph_m 9/10 3353 days 1.91 1%
JasonL 8/10 3356 days true 2.28 1%
Tanja Kirschmann 10/10 3357 days 1.9 1%
MicheyJ 10/10 3359 days 1.9 1%
caz 10/10 3380 days 1.87 1%
Cilla 10/10 3385 days true 2.24 1%
Hannah 10/10 3387 days 1.86 1%
karlijn schaap 10/10 3464 days 1.75 0%
Murray 10/10 3494 days 1.71 0%
Jan Burch 9/10 3606 days 1.56 0%
zane mirfin 10/10 3663 days 1.48 0%
becky 10/10 3691 days 1.44 0%
dave 9/10 3719 days 1.41 0%
shinylight 9/10 3751 days 1.36 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

-0.14% 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 364 days.

The Tongariro River Rafting experience has been adjusted for 7 days. Adjustments are according to the following table.

Days Adjustment
4 -0.08%
5 -0.10%
6 -0.12%
7 -0.14%
8 -0.16%
9 -0.18%
10 -0.20%

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.