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

99.54%

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
Ruth 10/10 146 days 96.62 100%
Gary Koh 10/10 359 days 79.58 82%
Jan 10/10 389 days 76.02 79%
Alison B. 10/10 389 days 76.02 79%
John Olsen 10/10 420 days 72.05 75%
Peter 10/10 512 days 58.46 61%
Ben 10/10 542 days 53.45 55%
Ian 10/10 603 days 43.36 45%
Gary Walker 10/10 603 days 43.36 45%
Rowella Bacwaden 10/10 634 days 38.68 40%
Eileen H 10/10 693 days 30.61 32%
Brad 10/10 754 days 23.43 24%
Jared London 10/10 785 days 20.23 21%
Helen Turner 10/10 815 days 17.42 18%
James 10/10 846 days 14.82 15%
Isabelle_Qc 10/10 877 days 12.53 13%
Laura 10/10 907 days 10.6 11%
ACE Richardson 10/10 938 days 8.91 9%
Thea :-) 10/10 999 days 6.46 7%
William Webb 10/10 1027 days 5.73 6%
Katelyn Mills 10/10 1027 days 5.73 6%
Mrs Smith 10/10 1027 days 5.73 6%
Mel 10/10 1027 days 5.73 6%
Wayne Smith 10/10 1027 days 5.73 6%
Kim 10/10 1058 days 5.22 5%
Songyang Liu 10/10 1058 days 5.22 5%
Mark Haydon 10/10 1392 days 4.42 5%
Kathryn Sherlock 10/10 1607 days 4.0 4%
Cherie Kemp 10/10 1607 days 4.0 4%
Renee Kemp 10/10 1607 days 4.0 4%
Patrick McIvor 10/10 1729 days 3.76 4%
Lengxi 10/10 1755 days true 3.71 4%
Uschi Pongratz 10/10 1763 days true 3.69 4%
Jessica Ruhland 10/10 1763 days true 3.69 4%
Paul 7/10 1768 days true 3.35 3%
Philip Piel 8/10 1768 days true 3.5 4%
Chiara 8/10 1768 days true 3.5 4%
Jess 10/10 1805 days true 3.61 4%
TashJ 10/10 1820 days 3.58 4%
Funny Schutt 10/10 1820 days 3.58 4%
Craig McCarthy 10/10 1850 days 3.52 4%
Tim K 10/10 1850 days 3.52 4%
Jack Shearer 10/10 1973 days 3.28 3%
Monika M 10/10 2003 days 3.22 3%
Ian Wilmot 10/10 2064 days 3.1 3%
Rodger Lamb 10/10 2095 days 3.04 3%
Leah Kyllo 10/10 2154 days 2.93 3%
Juliet Battersby 10/10 2154 days 2.93 3%
Chris C 10/10 2215 days 2.81 3%
Jessica 10/10 2307 days 2.63 3%
Mike Hollows 10/10 2399 days 2.45 3%
Monique Hollows 10/10 2460 days 2.33 2%
Thomas Subritzky 10/10 2460 days 2.33 2%
hmsteele 10/10 2488 days 2.27 2%
andy godfrey 9/10 2519 days 2.21 2%
Chris Nisbet 8/10 2519 days 2.1 2%
Michelle Sanders 9/10 2550 days 2.15 2%
phil costello 8/10 2580 days 1.99 2%
Robyn Orchard 10/10 2611 days 2.03 2%
Gisele Phillips 9/10 2611 days 2.03 2%
E Wall 10/10 2611 days 2.03 2%
Julie 10/10 2641 days 1.97 2%
Little 10/10 2641 days 1.97 2%
Grahame Keast 10/10 2672 days 1.91 2%
Linda Bates 10/10 2672 days 1.91 2%
Morgan Buckingham 10/10 2672 days 1.91 2%
Bertiethebus 10/10 2794 days 1.68 2%
Julian Roots 10/10 2825 days 1.61 2%
Lynette Nicolson 10/10 2884 days 1.5 2%
RENs Rens 10/10 2884 days 1.5 2%
CKDNH 10/10 2945 days 1.38 1%
mattus 9/10 2945 days 1.38 1%
Ken 10/10 2945 days 1.38 1%
Kathy27 10/10 2945 days 1.38 1%
ladywithplants 9/10 3006 days 1.26 1%
princessliz 10/10 3006 days 1.26 1%
lariley 9/10 3006 days 1.26 1%
richardp 10/10 3037 days 1.2 1%
prasanth03 10/10 3068 days 1.14 1%
EllieW 10/10 3098 days 1.08 1%
Terry 10/10 3159 days 0.96 1%
Borderland 10/10 3190 days 0.9 1%
jimbob 10/10 3190 days 0.9 1%
mopheim 10/10 3190 days 0.9 1%
Mats Harstedt 9/10 3199 days true 0.88 1%
KateS 10/10 3219 days 0.84 1%
RubberDuck 10/10 3250 days 0.78 1%
Red_Hurring 10/10 3250 days 0.78 1%
travelpam 10/10 3250 days 0.78 1%
barjjake 9/10 3250 days 0.78 1%
cindyd 10/10 3281 days 0.72 1%
webstersuk 10/10 3281 days 0.72 1%
pezalone 10/10 3281 days 0.72 1%
WiseOwl 10/10 3281 days 0.72 1%
mausandhari 10/10 3281 days 0.72 1%
Pauline 10/10 3311 days 0.66 1%
JadesWorld 9/10 3311 days 0.66 1%
utstarfish 10/10 3311 days 0.66 1%
johnco78 10/10 3311 days 0.66 1%
jrwholey 10/10 3342 days 0.6 1%
ShawnM 10/10 3342 days 0.6 1%
Tarsh 10/10 3342 days 0.6 1%
lindahealey 10/10 3342 days 0.6 1%
campbell_steven 10/10 3372 days 0.54 1%
markrussell 10/10 3372 days 0.54 1%
Bayneer 10/10 3372 days 0.54 1%
jaspreetsohal86 10/10 3372 days 0.54 1%
kiwiholly 10/10 3372 days 0.54 1%
garethd1980 10/10 3372 days 0.54 1%
Mulliano 10/10 3372 days 0.54 1%
CathyK 10/10 3403 days 0.48 1%
silver 10/10 3403 days 0.48 1%
Meyerclan 10/10 3434 days 0.42 0%
poetania 10/10 3464 days 0.36 0%
southernboy611 10/10 3464 days 0.36 0%
EvilChris 10/10 3495 days 0.3 0%
nia427 10/10 3525 days 0.24 0%
Mags620 10/10 3525 days 0.24 0%
deanblackburn 10/10 3525 days 0.24 0%
Heatherorchard 10/10 3556 days 0.18 0%
BeetleBom 10/10 3556 days 0.18 0%
AnnaBain 10/10 3584 days 0.13 0%
geezer 10/10 3584 days 0.13 0%
Jen 10/10 3584 days 0.13 0%
busheybrew 10/10 3584 days 0.13 0%
painter47 10/10 3615 days 0.07 0%
ganbji 9/10 3615 days 0.07 0%
charles 10/10 3646 days 0.01 0%
alanos 9/10 3646 days 0.01 0%
teeneelz 10/10 3646 days 0.01 0%
Douggie 7/10 3737 days 0.0 0%
celticcolleen 10/10 3860 days 0.0 0%
MarcyMark 10/10 3890 days 0.0 0%
Susiekj 10/10 3921 days 0.0 0%
Kirsten 10/10 3949 days 0.0 0%
Ravi Chand 10/10 3980 days 0.0 0%
Sika 10/10 3980 days 0.0 0%
anthony mcclaren 9/10 3980 days 0.0 0%
menzel 10/10 3994 days true 0.0 0%
joannaw 10/10 3996 days true 0.0 0%
meisterbaumann 10/10 4011 days 0.0 0%
Stefanie Micheler 10/10 4022 days true 0.0 0%
Aussies 10/10 4041 days 0.0 0%
Jake Volle 10/10 4041 days 0.0 0%
Jess Woods 10/10 4102 days 0.0 0%
emmah 9/10 4138 days true 0.0 0%
Dave Roebuck 10/10 4164 days 0.0 0%
steph_m 9/10 4265 days 0.0 0%
JasonL 8/10 4267 days true 0.0 0%
Tanja Kirschmann 10/10 4269 days 0.0 0%
MicheyJ 10/10 4271 days 0.0 0%
caz 10/10 4292 days 0.0 0%
Cilla 10/10 4297 days true 0.0 0%
Hannah 10/10 4299 days 0.0 0%
karlijn schaap 10/10 4376 days 0.0 0%
Murray 10/10 4406 days 0.0 0%
Jan Burch 9/10 4518 days 0.0 0%
zane mirfin 10/10 4575 days 0.0 0%
becky 10/10 4603 days 0.0 0%
dave 9/10 4631 days 0.0 0%
shinylight 9/10 4663 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

-2.86% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 43 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 141 days. Adjustments are according to the following table.

Days Adjustment
138 -2.80%
139 -2.82%
140 -2.84%
141 -2.86%
142 -2.88%
143 -2.90%
144 -2.92%

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.