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

99.65%

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
Gary Koh 10/10 88 days 98.77 100%
Jan 10/10 118 days 97.79 99%
Alison B. 10/10 118 days 97.79 99%
John Olsen 10/10 149 days 96.48 98%
Peter 10/10 241 days 90.8 92%
Ben 10/10 271 days 88.36 89%
Ian 10/10 332 days 82.53 84%
Gary Walker 10/10 332 days 82.53 84%
Rowella Bacwaden 10/10 363 days 79.12 80%
Eileen H 10/10 422 days 71.78 73%
Brad 10/10 483 days 63.03 64%
Jared London 10/10 514 days 58.14 59%
Helen Turner 10/10 544 days 53.11 54%
James 10/10 575 days 47.85 48%
Isabelle_Qc 10/10 606 days 42.89 43%
Laura 10/10 636 days 38.39 39%
ACE Richardson 10/10 667 days 34.03 34%
Thea :-) 10/10 728 days 26.34 27%
William Webb 10/10 756 days 23.21 23%
Katelyn Mills 10/10 756 days 23.21 23%
Mrs Smith 10/10 756 days 23.21 23%
Mel 10/10 756 days 23.21 23%
Wayne Smith 10/10 756 days 23.21 23%
Kim 10/10 787 days 20.03 20%
Songyang Liu 10/10 787 days 20.03 20%
Mark Haydon 10/10 1121 days 4.95 5%
Kathryn Sherlock 10/10 1336 days 4.53 5%
Cherie Kemp 10/10 1336 days 4.53 5%
Renee Kemp 10/10 1336 days 4.53 5%
Patrick McIvor 10/10 1458 days 4.29 4%
Lengxi 10/10 1484 days true 4.24 4%
Uschi Pongratz 10/10 1492 days true 4.22 4%
Jessica Ruhland 10/10 1492 days true 4.22 4%
Paul 7/10 1497 days true 3.83 4%
Philip Piel 8/10 1497 days true 4.0 4%
Chiara 8/10 1497 days true 4.0 4%
Jess 10/10 1534 days true 4.14 4%
TashJ 10/10 1549 days 4.11 4%
Funny Schutt 10/10 1549 days 4.11 4%
Craig McCarthy 10/10 1579 days 4.05 4%
Tim K 10/10 1579 days 4.05 4%
Jack Shearer 10/10 1702 days 3.81 4%
Monika M 10/10 1732 days 3.75 4%
Ian Wilmot 10/10 1793 days 3.63 4%
Rodger Lamb 10/10 1824 days 3.57 4%
Leah Kyllo 10/10 1883 days 3.46 4%
Juliet Battersby 10/10 1883 days 3.46 4%
Chris C 10/10 1944 days 3.34 3%
Jessica 10/10 2036 days 3.16 3%
Mike Hollows 10/10 2128 days 2.98 3%
Monique Hollows 10/10 2189 days 2.86 3%
Thomas Subritzky 10/10 2189 days 2.86 3%
Helen Steele 10/10 2217 days 2.8 3%
andy godfrey 9/10 2248 days 2.74 3%
Chris Nisbet 8/10 2248 days 2.61 3%
Michelle Sanders 9/10 2279 days 2.68 3%
phil costello 8/10 2309 days 2.49 3%
Robyn Orchard 10/10 2340 days 2.56 3%
Gisele Phillips 9/10 2340 days 2.56 3%
E Wall 10/10 2340 days 2.56 3%
Julie 10/10 2370 days 2.5 3%
Little 10/10 2370 days 2.5 3%
Grahame Keast 10/10 2401 days 2.44 2%
Linda Bates 10/10 2401 days 2.44 2%
Morgan Buckingham 10/10 2401 days 2.44 2%
Bertiethebus 10/10 2523 days 2.21 2%
Julian Roots 10/10 2554 days 2.14 2%
Lynette Nicolson 10/10 2613 days 2.03 2%
RENs Rens 10/10 2613 days 2.03 2%
CKDNH 10/10 2674 days 1.91 2%
mattus 9/10 2674 days 1.91 2%
Ken 10/10 2674 days 1.91 2%
Kathy27 10/10 2674 days 1.91 2%
ladywithplants 9/10 2735 days 1.79 2%
princessliz 10/10 2735 days 1.79 2%
lariley 9/10 2735 days 1.79 2%
richardp 10/10 2766 days 1.73 2%
prasanth03 10/10 2797 days 1.67 2%
EllieW 10/10 2827 days 1.61 2%
Terry 10/10 2888 days 1.49 2%
Borderland 10/10 2919 days 1.43 1%
jimbob 10/10 2919 days 1.43 1%
mopheim 10/10 2919 days 1.43 1%
Mats Harstedt 9/10 2928 days true 1.41 1%
KateS 10/10 2948 days 1.37 1%
RubberDuck 10/10 2979 days 1.31 1%
Red_Hurring 10/10 2979 days 1.31 1%
travelpam 10/10 2979 days 1.31 1%
barjjake 9/10 2979 days 1.31 1%
cindyd 10/10 3010 days 1.25 1%
webstersuk 10/10 3010 days 1.25 1%
pezalone 10/10 3010 days 1.25 1%
WiseOwl 10/10 3010 days 1.25 1%
mausandhari 10/10 3010 days 1.25 1%
Pauline 10/10 3040 days 1.19 1%
JadesWorld 9/10 3040 days 1.19 1%
utstarfish 10/10 3040 days 1.19 1%
johnco78 10/10 3040 days 1.19 1%
jrwholey 10/10 3071 days 1.13 1%
ShawnM 10/10 3071 days 1.13 1%
Tarsh 10/10 3071 days 1.13 1%
lindahealey 10/10 3071 days 1.13 1%
campbell_steven 10/10 3101 days 1.07 1%
markrussell 10/10 3101 days 1.07 1%
Bayneer 10/10 3101 days 1.07 1%
jaspreetsohal86 10/10 3101 days 1.07 1%
kiwiholly 10/10 3101 days 1.07 1%
garethd1980 10/10 3101 days 1.07 1%
Mulliano 10/10 3101 days 1.07 1%
CathyK 10/10 3132 days 1.01 1%
silver 10/10 3132 days 1.01 1%
Meyerclan 10/10 3163 days 0.95 1%
poetania 10/10 3193 days 0.89 1%
southernboy611 10/10 3193 days 0.89 1%
EvilChris 10/10 3224 days 0.83 1%
nia427 10/10 3254 days 0.77 1%
Mags620 10/10 3254 days 0.77 1%
deanblackburn 10/10 3254 days 0.77 1%
Heatherorchard 10/10 3285 days 0.71 1%
BeetleBom 10/10 3285 days 0.71 1%
AnnaBain 10/10 3313 days 0.66 1%
geezer 10/10 3313 days 0.66 1%
Jen 10/10 3313 days 0.66 1%
busheybrew 10/10 3313 days 0.66 1%
painter47 10/10 3344 days 0.6 1%
ganbji 9/10 3344 days 0.6 1%
charles 10/10 3375 days 0.54 1%
alanos 9/10 3375 days 0.54 1%
teeneelz 10/10 3375 days 0.54 1%
Douggie 7/10 3466 days 0.33 0%
celticcolleen 10/10 3589 days 0.12 0%
MarcyMark 10/10 3619 days 0.06 0%
Susiekj 10/10 3650 days 0.0 0%
Kirsten 10/10 3678 days 0.0 0%
Ravi Chand 10/10 3709 days 0.0 0%
Sika 10/10 3709 days 0.0 0%
anthony mcclaren 9/10 3709 days 0.0 0%
menzel 10/10 3723 days true 0.0 0%
joannaw 10/10 3725 days true 0.0 0%
meisterbaumann 10/10 3740 days 0.0 0%
Stefanie Micheler 10/10 3751 days true 0.0 0%
Aussies 10/10 3770 days 0.0 0%
Jake Volle 10/10 3770 days 0.0 0%
Jess Woods 10/10 3831 days 0.0 0%
emmah 9/10 3867 days true 0.0 0%
Dave Roebuck 10/10 3893 days 0.0 0%
steph_m 9/10 3993 days 0.0 0%
JasonL 8/10 3996 days true 0.0 0%
Tanja Kirschmann 10/10 3998 days 0.0 0%
MicheyJ 10/10 3999 days 0.0 0%
caz 10/10 4020 days 0.0 0%
Cilla 10/10 4025 days true 0.0 0%
Hannah 10/10 4028 days 0.0 0%
karlijn schaap 10/10 4105 days 0.0 0%
Murray 10/10 4135 days 0.0 0%
Jan Burch 9/10 4247 days 0.0 0%
zane mirfin 10/10 4303 days 0.0 0%
becky 10/10 4331 days 0.0 0%
dave 9/10 4359 days 0.0 0%
shinylight 9/10 4391 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

-1.60% 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 80 days. Adjustments are according to the following table.

Days Adjustment
77 -1.54%
78 -1.56%
79 -1.58%
80 -1.60%
81 -1.62%
82 -1.64%
83 -1.66%

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.