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

160 Valid Reviews

The Tongariro River Rafting experience has a total of 161 reviews. There are 160 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 160 valid reviews:

Rating Count Percentage
10/10 136
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%

97.94% Average

The raw data average (mean) for all the Tongariro River Rafting valid reviews is 97.94% and is based on 160 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 160 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

99.59%

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
Gary Koh 10/10 217 days 92.54 100%
Jan 10/10 247 days 90.33 98%
Alison B. 10/10 247 days 90.33 98%
John Olsen 10/10 278 days 87.75 95%
Peter 10/10 370 days 78.31 85%
Ben 10/10 400 days 74.65 81%
Ian 10/10 461 days 66.32 72%
Gary Walker 10/10 461 days 66.32 72%
Rowella Bacwaden 10/10 492 days 61.64 67%
Eileen H 10/10 551 days 51.89 56%
Brad 10/10 612 days 41.97 45%
Jared London 10/10 643 days 37.37 40%
Helen Turner 10/10 673 days 33.22 36%
James 10/10 704 days 29.23 32%
Isabelle_Qc 10/10 735 days 25.54 28%
Laura 10/10 765 days 22.26 24%
ACE Richardson 10/10 796 days 19.17 21%
Thea :-) 10/10 857 days 13.98 15%
William Webb 10/10 885 days 11.99 13%
Katelyn Mills 10/10 885 days 11.99 13%
Mrs Smith 10/10 885 days 11.99 13%
Mel 10/10 885 days 11.99 13%
Wayne Smith 10/10 885 days 11.99 13%
Kim 10/10 916 days 10.08 11%
Songyang Liu 10/10 916 days 10.08 11%
Mark Haydon 10/10 1250 days 4.7 5%
Kathryn Sherlock 10/10 1465 days 4.28 5%
Cherie Kemp 10/10 1465 days 4.28 5%
Renee Kemp 10/10 1465 days 4.28 5%
Patrick McIvor 10/10 1587 days 4.04 4%
Lengxi 10/10 1613 days true 3.99 4%
Uschi Pongratz 10/10 1621 days true 3.97 4%
Jessica Ruhland 10/10 1621 days true 3.97 4%
Paul 7/10 1626 days true 3.6 4%
Philip Piel 8/10 1626 days true 3.76 4%
Chiara 8/10 1626 days true 3.76 4%
Jess 10/10 1663 days true 3.89 4%
TashJ 10/10 1678 days 3.86 4%
Funny Schutt 10/10 1678 days 3.86 4%
Craig McCarthy 10/10 1708 days 3.8 4%
Tim K 10/10 1708 days 3.8 4%
Jack Shearer 10/10 1831 days 3.56 4%
Monika M 10/10 1861 days 3.5 4%
Ian Wilmot 10/10 1922 days 3.38 4%
Rodger Lamb 10/10 1953 days 3.32 4%
Leah Kyllo 10/10 2012 days 3.21 3%
Juliet Battersby 10/10 2012 days 3.21 3%
Chris C 10/10 2073 days 3.09 3%
Jessica 10/10 2165 days 2.91 3%
Mike Hollows 10/10 2257 days 2.73 3%
Monique Hollows 10/10 2318 days 2.61 3%
Thomas Subritzky 10/10 2318 days 2.61 3%
hmsteele 10/10 2346 days 2.55 3%
andy godfrey 9/10 2377 days 2.49 3%
Chris Nisbet 8/10 2377 days 2.37 3%
Michelle Sanders 9/10 2408 days 2.43 3%
phil costello 8/10 2438 days 2.25 2%
Robyn Orchard 10/10 2469 days 2.31 2%
Gisele Phillips 9/10 2469 days 2.31 2%
E Wall 10/10 2469 days 2.31 2%
Julie 10/10 2499 days 2.25 2%
Little 10/10 2499 days 2.25 2%
Grahame Keast 10/10 2530 days 2.19 2%
Linda Bates 10/10 2530 days 2.19 2%
Morgan Buckingham 10/10 2530 days 2.19 2%
Bertiethebus 10/10 2652 days 1.95 2%
Julian Roots 10/10 2683 days 1.89 2%
Lynette Nicolson 10/10 2742 days 1.78 2%
RENs Rens 10/10 2742 days 1.78 2%
CKDNH 10/10 2803 days 1.66 2%
mattus 9/10 2803 days 1.66 2%
Ken 10/10 2803 days 1.66 2%
Kathy27 10/10 2803 days 1.66 2%
ladywithplants 9/10 2864 days 1.54 2%
princessliz 10/10 2864 days 1.54 2%
lariley 9/10 2864 days 1.54 2%
richardp 10/10 2895 days 1.48 2%
prasanth03 10/10 2926 days 1.42 2%
EllieW 10/10 2956 days 1.36 1%
Terry 10/10 3017 days 1.24 1%
Borderland 10/10 3048 days 1.18 1%
jimbob 10/10 3048 days 1.18 1%
mopheim 10/10 3048 days 1.18 1%
Mats Harstedt 9/10 3057 days true 1.16 1%
KateS 10/10 3077 days 1.12 1%
RubberDuck 10/10 3108 days 1.06 1%
Red_Hurring 10/10 3108 days 1.06 1%
travelpam 10/10 3108 days 1.06 1%
barjjake 9/10 3108 days 1.06 1%
cindyd 10/10 3139 days 1.0 1%
webstersuk 10/10 3139 days 1.0 1%
pezalone 10/10 3139 days 1.0 1%
WiseOwl 10/10 3139 days 1.0 1%
mausandhari 10/10 3139 days 1.0 1%
Pauline 10/10 3169 days 0.94 1%
JadesWorld 9/10 3169 days 0.94 1%
utstarfish 10/10 3169 days 0.94 1%
johnco78 10/10 3169 days 0.94 1%
jrwholey 10/10 3200 days 0.88 1%
ShawnM 10/10 3200 days 0.88 1%
Tarsh 10/10 3200 days 0.88 1%
lindahealey 10/10 3200 days 0.88 1%
campbell_steven 10/10 3230 days 0.82 1%
markrussell 10/10 3230 days 0.82 1%
Bayneer 10/10 3230 days 0.82 1%
jaspreetsohal86 10/10 3230 days 0.82 1%
kiwiholly 10/10 3230 days 0.82 1%
garethd1980 10/10 3230 days 0.82 1%
Mulliano 10/10 3230 days 0.82 1%
CathyK 10/10 3261 days 0.76 1%
silver 10/10 3261 days 0.76 1%
Meyerclan 10/10 3292 days 0.7 1%
poetania 10/10 3322 days 0.64 1%
southernboy611 10/10 3322 days 0.64 1%
EvilChris 10/10 3353 days 0.58 1%
nia427 10/10 3383 days 0.52 1%
Mags620 10/10 3383 days 0.52 1%
deanblackburn 10/10 3383 days 0.52 1%
Heatherorchard 10/10 3414 days 0.46 0%
BeetleBom 10/10 3414 days 0.46 0%
AnnaBain 10/10 3442 days 0.41 0%
geezer 10/10 3442 days 0.41 0%
Jen 10/10 3442 days 0.41 0%
busheybrew 10/10 3442 days 0.41 0%
painter47 10/10 3473 days 0.35 0%
ganbji 9/10 3473 days 0.35 0%
charles 10/10 3504 days 0.29 0%
alanos 9/10 3504 days 0.29 0%
teeneelz 10/10 3504 days 0.29 0%
Douggie 7/10 3595 days 0.1 0%
celticcolleen 10/10 3718 days 0.0 0%
MarcyMark 10/10 3748 days 0.0 0%
Susiekj 10/10 3779 days 0.0 0%
Kirsten 10/10 3807 days 0.0 0%
Ravi Chand 10/10 3838 days 0.0 0%
Sika 10/10 3838 days 0.0 0%
anthony mcclaren 9/10 3838 days 0.0 0%
menzel 10/10 3852 days true 0.0 0%
joannaw 10/10 3854 days true 0.0 0%
meisterbaumann 10/10 3869 days 0.0 0%
Stefanie Micheler 10/10 3880 days true 0.0 0%
Aussies 10/10 3899 days 0.0 0%
Jake Volle 10/10 3899 days 0.0 0%
Jess Woods 10/10 3960 days 0.0 0%
emmah 9/10 3996 days true 0.0 0%
Dave Roebuck 10/10 4022 days 0.0 0%
steph_m 9/10 4123 days 0.0 0%
JasonL 8/10 4125 days true 0.0 0%
Tanja Kirschmann 10/10 4127 days 0.0 0%
MicheyJ 10/10 4129 days 0.0 0%
caz 10/10 4149 days 0.0 0%
Cilla 10/10 4155 days true 0.0 0%
Hannah 10/10 4157 days 0.0 0%
karlijn schaap 10/10 4234 days 0.0 0%
Murray 10/10 4264 days 0.0 0%
Jan Burch 9/10 4376 days 0.0 0%
zane mirfin 10/10 4433 days 0.0 0%
becky 10/10 4460 days 0.0 0%
dave 9/10 4488 days 0.0 0%
shinylight 9/10 4520 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

-2.02% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 124 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 -1.99%
198 -2.00%
199 -2.01%
200 -2.02%
201 -2.03%
202 -2.04%
203 -2.05%

Final Ranking Score

98%

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.