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

151 Valid Reviews

The Tongariro River Rafting experience has a total of 152 reviews. There are 151 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 151 valid reviews:

Rating Count Percentage
10/10 127
84%
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%

97.81% Average

The raw data average (mean) for all the Tongariro River Rafting valid reviews is 97.81% and is based on 151 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 151 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

99.37%

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
Eileen H 10/10 81 days 98.96 100%
Brad 10/10 142 days 96.8 98%
Jared London 10/10 173 days 95.26 96%
Helen Turner 10/10 203 days 93.47 94%
James 10/10 234 days 91.32 92%
Isabelle_Qc 10/10 265 days 88.87 90%
Laura 10/10 295 days 86.21 87%
ACE Richardson 10/10 326 days 83.16 84%
Thea :-) 10/10 387 days 76.27 77%
William Webb 10/10 415 days 72.71 73%
Katelyn Mills 10/10 415 days 72.71 73%
Mrs Smith 10/10 415 days 72.71 73%
Mel 10/10 415 days 72.71 73%
Wayne Smith 10/10 415 days 72.71 73%
Kim 10/10 446 days 68.48 69%
Songyang Liu 10/10 446 days 68.48 69%
Mark Haydon 10/10 780 days 20.72 20%
Kathryn Sherlock 10/10 995 days 6.58 6%
Cherie Kemp 10/10 995 days 6.58 6%
Renee Kemp 10/10 995 days 6.58 6%
Patrick McIvor 10/10 1117 days 4.97 4%
Lengxi 10/10 1143 days true 5.92 5%
Uschi Pongratz 10/10 1151 days true 5.91 5%
Jessica Ruhland 10/10 1151 days true 5.91 5%
Paul 7/10 1156 days true 5.9 5%
Philip Piel 8/10 1156 days true 5.9 5%
Chiara 8/10 1156 days true 5.9 5%
Jess 10/10 1193 days true 5.84 5%
TashJ 10/10 1208 days 4.85 4%
Funny Schutt 10/10 1208 days 4.85 4%
Craig McCarthy 10/10 1238 days 4.8 4%
Tim K 10/10 1238 days 4.8 4%
Jack Shearer 10/10 1361 days 4.64 4%
Monika M 10/10 1391 days 4.59 4%
Ian Wilmot 10/10 1452 days 4.51 4%
Rodger Lamb 10/10 1483 days 4.47 4%
Leah Kyllo 10/10 1542 days 4.39 4%
Juliet Battersby 10/10 1542 days 4.39 4%
Chris C 10/10 1603 days 4.3 3%
Jessica 10/10 1695 days 4.18 3%
Mike Hollows 10/10 1787 days 4.05 3%
Monique Hollows 10/10 1848 days 3.97 3%
Thomas Subritzky 10/10 1848 days 3.97 3%
Helen Steele 10/10 1876 days 3.93 3%
andy godfrey 9/10 1907 days 3.89 3%
Chris Nisbet 8/10 1907 days 3.89 3%
Michelle Sanders 9/10 1938 days 3.85 3%
phil costello 8/10 1968 days 3.8 3%
Robyn Orchard 10/10 1999 days 3.76 3%
Gisele Phillips 9/10 1999 days 3.76 3%
E Wall 10/10 1999 days 3.76 3%
Julie 10/10 2029 days 3.72 3%
Little 10/10 2029 days 3.72 3%
Grahame Keast 10/10 2060 days 3.68 3%
Linda Bates 10/10 2060 days 3.68 3%
Morgan Buckingham 10/10 2060 days 3.68 3%
Bertiethebus 10/10 2182 days 3.51 3%
Julian Roots 10/10 2213 days 3.47 3%
Lynette Nicolson 10/10 2272 days 3.39 2%
RENs Rens 10/10 2272 days 3.39 2%
CKDNH 10/10 2333 days 3.3 2%
mattus 9/10 2333 days 3.3 2%
Ken 10/10 2333 days 3.3 2%
Kathy27 10/10 2333 days 3.3 2%
ladywithplants 9/10 2394 days 3.22 2%
princessliz 10/10 2394 days 3.22 2%
lariley 9/10 2394 days 3.22 2%
richardp 10/10 2425 days 3.18 2%
prasanth03 10/10 2456 days 3.14 2%
EllieW 10/10 2486 days 3.09 2%
Terry 10/10 2547 days 3.01 2%
Borderland 10/10 2578 days 2.97 2%
jimbob 10/10 2578 days 2.97 2%
mopheim 10/10 2578 days 2.97 2%
Mats Harstedt 9/10 2587 days true 3.55 3%
KateS 10/10 2607 days 2.93 2%
RubberDuck 10/10 2638 days 2.89 2%
Red_Hurring 10/10 2638 days 2.89 2%
travelpam 10/10 2638 days 2.89 2%
barjjake 9/10 2638 days 2.89 2%
cindyd 10/10 2669 days 2.84 2%
webstersuk 10/10 2669 days 2.84 2%
pezalone 10/10 2669 days 2.84 2%
WiseOwl 10/10 2669 days 2.84 2%
mausandhari 10/10 2669 days 2.84 2%
Pauline 10/10 2699 days 2.8 2%
JadesWorld 9/10 2699 days 2.8 2%
utstarfish 10/10 2699 days 2.8 2%
johnco78 10/10 2699 days 2.8 2%
jrwholey 10/10 2730 days 2.76 2%
ShawnM 10/10 2730 days 2.76 2%
Tarsh 10/10 2730 days 2.76 2%
lindahealey 10/10 2730 days 2.76 2%
campbell_steven 10/10 2760 days 2.72 2%
markrussell 10/10 2760 days 2.72 2%
Bayneer 10/10 2760 days 2.72 2%
jaspreetsohal86 10/10 2760 days 2.72 2%
kiwiholly 10/10 2760 days 2.72 2%
garethd1980 10/10 2760 days 2.72 2%
Mulliano 10/10 2760 days 2.72 2%
CathyK 10/10 2791 days 2.68 2%
silver 10/10 2791 days 2.68 2%
Meyerclan 10/10 2822 days 2.63 2%
poetania 10/10 2852 days 2.59 2%
southernboy611 10/10 2852 days 2.59 2%
EvilChris 10/10 2883 days 2.55 2%
nia427 10/10 2913 days 2.51 2%
Mags620 10/10 2913 days 2.51 2%
deanblackburn 10/10 2913 days 2.51 2%
Heatherorchard 10/10 2944 days 2.47 2%
BeetleBom 10/10 2944 days 2.47 2%
AnnaBain 10/10 2972 days 2.43 2%
geezer 10/10 2972 days 2.43 2%
Jen 10/10 2972 days 2.43 2%
busheybrew 10/10 2972 days 2.43 2%
painter47 10/10 3003 days 2.39 1%
ganbji 9/10 3003 days 2.39 1%
charles 10/10 3034 days 2.34 1%
alanos 9/10 3034 days 2.34 1%
teeneelz 10/10 3034 days 2.34 1%
Douggie 7/10 3125 days 2.22 1%
celticcolleen 10/10 3248 days 2.05 1%
MarcyMark 10/10 3278 days 2.01 1%
Susiekj 10/10 3309 days 1.97 1%
Kirsten 10/10 3337 days 1.93 1%
Ravi Chand 10/10 3368 days 1.89 1%
Sika 10/10 3368 days 1.89 1%
anthony mcclaren 9/10 3368 days 1.89 1%
menzel 10/10 3382 days true 2.24 1%
joannaw 10/10 3384 days true 2.24 1%
meisterbaumann 10/10 3399 days 1.84 1%
Stefanie Micheler 10/10 3410 days true 2.19 1%
Aussies 10/10 3429 days 1.8 1%
Jake Volle 10/10 3429 days 1.8 1%
Jess Woods 10/10 3490 days 1.72 1%
emmah 9/10 3526 days true 2.0 1%
Dave Roebuck 10/10 3552 days 1.63 1%
steph_m 9/10 3652 days 1.5 1%
JasonL 8/10 3655 days true 1.79 1%
Tanja Kirschmann 10/10 3657 days 1.49 1%
MicheyJ 10/10 3658 days 1.49 1%
caz 10/10 3679 days 1.46 1%
Cilla 10/10 3685 days true 1.74 1%
Hannah 10/10 3687 days 1.45 1%
karlijn schaap 10/10 3764 days 1.34 0%
Murray 10/10 3794 days 1.3 0%
Jan Burch 9/10 3906 days 1.15 0%
zane mirfin 10/10 3962 days 1.07 0%
becky 10/10 3990 days 1.03 0%
dave 9/10 4018 days 1.0 0%
shinylight 9/10 4050 days 0.95 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

-1.44% 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 72 days. Adjustments are according to the following table.

Days Adjustment
69 -1.38%
70 -1.40%
71 -1.42%
72 -1.44%
73 -1.46%
74 -1.48%
75 -1.50%

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.

Love Christchurch