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

99.59%

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
Ruth 10/10 80 days 98.99 100%
Gary Koh 10/10 293 days 86.4 87%
Jan 10/10 323 days 83.47 84%
Alison B. 10/10 323 days 83.47 84%
John Olsen 10/10 354 days 80.14 81%
Peter 10/10 446 days 68.48 69%
Ben 10/10 476 days 64.1 65%
Ian 10/10 537 days 54.3 55%
Gary Walker 10/10 537 days 54.3 55%
Rowella Bacwaden 10/10 568 days 49.01 50%
Eileen H 10/10 627 days 39.71 40%
Brad 10/10 688 days 31.25 32%
Jared London 10/10 719 days 27.4 28%
Helen Turner 10/10 749 days 23.97 24%
James 10/10 780 days 20.72 21%
Isabelle_Qc 10/10 811 days 17.78 18%
Laura 10/10 841 days 15.22 15%
ACE Richardson 10/10 872 days 12.88 13%
Thea :-) 10/10 933 days 9.16 9%
William Webb 10/10 960 days 7.89 8%
Katelyn Mills 10/10 961 days 7.85 8%
Mrs Smith 10/10 961 days 7.85 8%
Mel 10/10 961 days 7.85 8%
Wayne Smith 10/10 961 days 7.85 8%
Kim 10/10 991 days 6.71 7%
Songyang Liu 10/10 991 days 6.71 7%
Mark Haydon 10/10 1325 days 4.55 5%
Kathryn Sherlock 10/10 1540 days 4.13 4%
Cherie Kemp 10/10 1540 days 4.13 4%
Renee Kemp 10/10 1540 days 4.13 4%
Patrick McIvor 10/10 1662 days 3.89 4%
Lengxi 10/10 1689 days true 3.84 4%
Uschi Pongratz 10/10 1697 days true 3.82 4%
Jessica Ruhland 10/10 1697 days true 3.82 4%
Paul 7/10 1702 days true 3.47 4%
Philip Piel 8/10 1702 days true 3.62 4%
Chiara 8/10 1702 days true 3.62 4%
Jess 10/10 1739 days true 3.74 4%
TashJ 10/10 1753 days 3.71 4%
Funny Schutt 10/10 1753 days 3.71 4%
Craig McCarthy 10/10 1784 days 3.65 4%
Tim K 10/10 1784 days 3.65 4%
Jack Shearer 10/10 1906 days 3.41 3%
Monika M 10/10 1937 days 3.35 3%
Ian Wilmot 10/10 1997 days 3.23 3%
Rodger Lamb 10/10 2028 days 3.17 3%
Leah Kyllo 10/10 2087 days 3.06 3%
Juliet Battersby 10/10 2087 days 3.06 3%
Chris C 10/10 2148 days 2.94 3%
Jessica 10/10 2240 days 2.76 3%
Mike Hollows 10/10 2332 days 2.58 3%
Monique Hollows 10/10 2393 days 2.46 2%
Thomas Subritzky 10/10 2394 days 2.46 2%
hmsteele 10/10 2422 days 2.4 2%
andy godfrey 9/10 2453 days 2.34 2%
Chris Nisbet 8/10 2453 days 2.23 2%
Michelle Sanders 9/10 2484 days 2.28 2%
phil costello 8/10 2514 days 2.11 2%
Robyn Orchard 10/10 2545 days 2.16 2%
Gisele Phillips 9/10 2545 days 2.16 2%
E Wall 10/10 2545 days 2.16 2%
Julie 10/10 2575 days 2.1 2%
Little 10/10 2575 days 2.1 2%
Grahame Keast 10/10 2606 days 2.04 2%
Linda Bates 10/10 2606 days 2.04 2%
Morgan Buckingham 10/10 2606 days 2.04 2%
Bertiethebus 10/10 2728 days 1.8 2%
Julian Roots 10/10 2759 days 1.74 2%
Lynette Nicolson 10/10 2818 days 1.63 2%
RENs Rens 10/10 2818 days 1.63 2%
CKDNH 10/10 2879 days 1.51 2%
mattus 9/10 2879 days 1.51 2%
Ken 10/10 2879 days 1.51 2%
Kathy27 10/10 2879 days 1.51 2%
ladywithplants 9/10 2940 days 1.39 1%
princessliz 10/10 2940 days 1.39 1%
lariley 9/10 2940 days 1.39 1%
richardp 10/10 2971 days 1.33 1%
prasanth03 10/10 3002 days 1.27 1%
EllieW 10/10 3032 days 1.21 1%
Terry 10/10 3093 days 1.09 1%
Borderland 10/10 3124 days 1.03 1%
jimbob 10/10 3124 days 1.03 1%
mopheim 10/10 3124 days 1.03 1%
Mats Harstedt 9/10 3133 days true 1.01 1%
KateS 10/10 3153 days 0.97 1%
RubberDuck 10/10 3184 days 0.91 1%
Red_Hurring 10/10 3184 days 0.91 1%
travelpam 10/10 3184 days 0.91 1%
barjjake 9/10 3184 days 0.91 1%
cindyd 10/10 3215 days 0.85 1%
webstersuk 10/10 3215 days 0.85 1%
pezalone 10/10 3215 days 0.85 1%
WiseOwl 10/10 3215 days 0.85 1%
mausandhari 10/10 3215 days 0.85 1%
Pauline 10/10 3245 days 0.79 1%
JadesWorld 9/10 3245 days 0.79 1%
utstarfish 10/10 3245 days 0.79 1%
johnco78 10/10 3245 days 0.79 1%
jrwholey 10/10 3276 days 0.73 1%
ShawnM 10/10 3276 days 0.73 1%
Tarsh 10/10 3276 days 0.73 1%
lindahealey 10/10 3276 days 0.73 1%
campbell_steven 10/10 3306 days 0.67 1%
markrussell 10/10 3306 days 0.67 1%
Bayneer 10/10 3306 days 0.67 1%
jaspreetsohal86 10/10 3306 days 0.67 1%
kiwiholly 10/10 3306 days 0.67 1%
garethd1980 10/10 3306 days 0.67 1%
Mulliano 10/10 3306 days 0.67 1%
CathyK 10/10 3337 days 0.61 1%
silver 10/10 3337 days 0.61 1%
Meyerclan 10/10 3368 days 0.55 1%
poetania 10/10 3398 days 0.49 0%
southernboy611 10/10 3398 days 0.49 0%
EvilChris 10/10 3429 days 0.43 0%
nia427 10/10 3459 days 0.37 0%
Mags620 10/10 3459 days 0.37 0%
deanblackburn 10/10 3459 days 0.37 0%
Heatherorchard 10/10 3490 days 0.31 0%
BeetleBom 10/10 3490 days 0.31 0%
AnnaBain 10/10 3518 days 0.26 0%
geezer 10/10 3518 days 0.26 0%
Jen 10/10 3518 days 0.26 0%
busheybrew 10/10 3518 days 0.26 0%
painter47 10/10 3549 days 0.2 0%
ganbji 9/10 3549 days 0.2 0%
charles 10/10 3580 days 0.14 0%
alanos 9/10 3580 days 0.14 0%
teeneelz 10/10 3580 days 0.14 0%
Douggie 7/10 3671 days 0.0 0%
celticcolleen 10/10 3794 days 0.0 0%
MarcyMark 10/10 3824 days 0.0 0%
Susiekj 10/10 3855 days 0.0 0%
Kirsten 10/10 3883 days 0.0 0%
Ravi Chand 10/10 3914 days 0.0 0%
Sika 10/10 3914 days 0.0 0%
anthony mcclaren 9/10 3914 days 0.0 0%
menzel 10/10 3928 days true 0.0 0%
joannaw 10/10 3930 days true 0.0 0%
meisterbaumann 10/10 3945 days 0.0 0%
Stefanie Micheler 10/10 3956 days true 0.0 0%
Aussies 10/10 3975 days 0.0 0%
Jake Volle 10/10 3975 days 0.0 0%
Jess Woods 10/10 4036 days 0.0 0%
emmah 9/10 4072 days true 0.0 0%
Dave Roebuck 10/10 4098 days 0.0 0%
steph_m 9/10 4198 days 0.0 0%
JasonL 8/10 4201 days true 0.0 0%
Tanja Kirschmann 10/10 4202 days 0.0 0%
MicheyJ 10/10 4204 days 0.0 0%
caz 10/10 4225 days 0.0 0%
Cilla 10/10 4230 days true 0.0 0%
Hannah 10/10 4232 days 0.0 0%
karlijn schaap 10/10 4309 days 0.0 0%
Murray 10/10 4339 days 0.0 0%
Jan Burch 9/10 4452 days 0.0 0%
zane mirfin 10/10 4508 days 0.0 0%
becky 10/10 4536 days 0.0 0%
dave 9/10 4564 days 0.0 0%
shinylight 9/10 4596 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

-1.12% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 75 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 74 days. Adjustments are according to the following table.

Days Adjustment
71 -1.08%
72 -1.09%
73 -1.11%
74 -1.12%
75 -1.14%
76 -1.15%
77 -1.17%

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.