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

156 Valid Reviews

The Tongariro River Rafting experience has a total of 157 reviews. There are 156 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 156 valid reviews:

Rating Count Percentage
10/10 132
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%

97.88% Average

The raw data average (mean) for all the Tongariro River Rafting valid reviews is 97.88% and is based on 156 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 156 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

99.57%

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
Peter 10/10 84 days 98.88 100%
Ben 10/10 114 days 97.94 99%
Ian 10/10 175 days 95.15 96%
Gary Walker 10/10 175 days 95.15 96%
Rowella Bacwaden 10/10 206 days 93.28 94%
Eileen H 10/10 265 days 88.87 90%
Brad 10/10 326 days 83.16 84%
Jared London 10/10 357 days 79.8 81%
Helen Turner 10/10 387 days 76.27 77%
James 10/10 418 days 72.31 73%
Isabelle_Qc 10/10 449 days 68.05 69%
Laura 10/10 479 days 63.64 64%
ACE Richardson 10/10 510 days 58.78 59%
Thea :-) 10/10 571 days 48.51 49%
William Webb 10/10 598 days 44.14 45%
Katelyn Mills 10/10 599 days 43.98 44%
Mrs Smith 10/10 599 days 43.98 44%
Mel 10/10 599 days 43.98 44%
Wayne Smith 10/10 599 days 43.98 44%
Kim 10/10 629 days 39.41 40%
Songyang Liu 10/10 629 days 39.41 40%
Mark Haydon 10/10 963 days 7.76 8%
Kathryn Sherlock 10/10 1178 days 4.86 5%
Cherie Kemp 10/10 1178 days 4.86 5%
Renee Kemp 10/10 1178 days 4.86 5%
Patrick McIvor 10/10 1300 days 4.65 5%
Lengxi 10/10 1327 days true 4.6 5%
Uschi Pongratz 10/10 1335 days true 4.59 5%
Jessica Ruhland 10/10 1335 days true 4.59 5%
Paul 7/10 1340 days true 4.17 4%
Philip Piel 8/10 1340 days true 4.35 4%
Chiara 8/10 1340 days true 4.35 4%
Jess 10/10 1377 days true 4.52 5%
TashJ 10/10 1391 days 4.49 5%
Funny Schutt 10/10 1391 days 4.49 5%
Craig McCarthy 10/10 1422 days 4.44 4%
Tim K 10/10 1422 days 4.44 4%
Jack Shearer 10/10 1544 days 4.23 4%
Monika M 10/10 1575 days 4.18 4%
Ian Wilmot 10/10 1635 days 4.08 4%
Rodger Lamb 10/10 1666 days 4.02 4%
Leah Kyllo 10/10 1725 days 3.92 4%
Juliet Battersby 10/10 1725 days 3.92 4%
Chris C 10/10 1786 days 3.82 4%
Jessica 10/10 1878 days 3.66 4%
Mike Hollows 10/10 1970 days 3.5 4%
Monique Hollows 10/10 2031 days 3.4 3%
Thomas Subritzky 10/10 2032 days 3.4 3%
Helen Steele 10/10 2060 days 3.35 3%
andy godfrey 9/10 2091 days 3.29 3%
Chris Nisbet 8/10 2091 days 3.13 3%
Michelle Sanders 9/10 2122 days 3.24 3%
phil costello 8/10 2152 days 3.03 3%
Robyn Orchard 10/10 2183 days 3.14 3%
Gisele Phillips 9/10 2183 days 3.14 3%
E Wall 10/10 2183 days 3.14 3%
Julie 10/10 2213 days 3.09 3%
Little 10/10 2213 days 3.09 3%
Grahame Keast 10/10 2244 days 3.03 3%
Linda Bates 10/10 2244 days 3.03 3%
Morgan Buckingham 10/10 2244 days 3.03 3%
Bertiethebus 10/10 2366 days 2.82 3%
Julian Roots 10/10 2397 days 2.77 3%
Lynette Nicolson 10/10 2456 days 2.67 3%
RENs Rens 10/10 2456 days 2.67 3%
CKDNH 10/10 2517 days 2.57 3%
mattus 9/10 2517 days 2.57 3%
Ken 10/10 2517 days 2.57 3%
Kathy27 10/10 2517 days 2.57 3%
ladywithplants 9/10 2578 days 2.46 2%
princessliz 10/10 2578 days 2.46 2%
lariley 9/10 2578 days 2.46 2%
richardp 10/10 2609 days 2.41 2%
prasanth03 10/10 2640 days 2.35 2%
EllieW 10/10 2670 days 2.3 2%
Terry 10/10 2731 days 2.2 2%
Borderland 10/10 2762 days 2.15 2%
jimbob 10/10 2762 days 2.15 2%
mopheim 10/10 2762 days 2.15 2%
Mats Harstedt 9/10 2771 days true 2.13 2%
KateS 10/10 2791 days 2.1 2%
RubberDuck 10/10 2822 days 2.04 2%
Red_Hurring 10/10 2822 days 2.04 2%
travelpam 10/10 2822 days 2.04 2%
barjjake 9/10 2822 days 2.04 2%
cindyd 10/10 2853 days 1.99 2%
webstersuk 10/10 2853 days 1.99 2%
pezalone 10/10 2853 days 1.99 2%
WiseOwl 10/10 2853 days 1.99 2%
mausandhari 10/10 2853 days 1.99 2%
Pauline 10/10 2883 days 1.94 2%
JadesWorld 9/10 2883 days 1.94 2%
utstarfish 10/10 2883 days 1.94 2%
johnco78 10/10 2883 days 1.94 2%
jrwholey 10/10 2914 days 1.89 2%
ShawnM 10/10 2914 days 1.89 2%
Tarsh 10/10 2914 days 1.89 2%
lindahealey 10/10 2914 days 1.89 2%
campbell_steven 10/10 2944 days 1.83 2%
markrussell 10/10 2944 days 1.83 2%
Bayneer 10/10 2944 days 1.83 2%
jaspreetsohal86 10/10 2944 days 1.83 2%
kiwiholly 10/10 2944 days 1.83 2%
garethd1980 10/10 2944 days 1.83 2%
Mulliano 10/10 2944 days 1.83 2%
CathyK 10/10 2975 days 1.78 2%
silver 10/10 2975 days 1.78 2%
Meyerclan 10/10 3006 days 1.73 2%
poetania 10/10 3036 days 1.68 2%
southernboy611 10/10 3036 days 1.68 2%
EvilChris 10/10 3067 days 1.62 2%
nia427 10/10 3097 days 1.57 2%
Mags620 10/10 3097 days 1.57 2%
deanblackburn 10/10 3097 days 1.57 2%
Heatherorchard 10/10 3128 days 1.52 2%
BeetleBom 10/10 3128 days 1.52 2%
AnnaBain 10/10 3156 days 1.47 1%
geezer 10/10 3156 days 1.47 1%
Jen 10/10 3156 days 1.47 1%
busheybrew 10/10 3156 days 1.47 1%
painter47 10/10 3187 days 1.42 1%
ganbji 9/10 3187 days 1.42 1%
charles 10/10 3218 days 1.36 1%
alanos 9/10 3218 days 1.36 1%
teeneelz 10/10 3218 days 1.36 1%
Douggie 7/10 3309 days 1.1 1%
celticcolleen 10/10 3432 days 1.0 1%
MarcyMark 10/10 3462 days 0.95 1%
Susiekj 10/10 3493 days 0.89 1%
Kirsten 10/10 3521 days 0.85 1%
Ravi Chand 10/10 3552 days 0.79 1%
Sika 10/10 3552 days 0.79 1%
anthony mcclaren 9/10 3552 days 0.79 1%
menzel 10/10 3566 days true 0.77 1%
joannaw 10/10 3568 days true 0.77 1%
meisterbaumann 10/10 3583 days 0.74 1%
Stefanie Micheler 10/10 3594 days true 0.72 1%
Aussies 10/10 3613 days 0.69 1%
Jake Volle 10/10 3613 days 0.69 1%
Jess Woods 10/10 3674 days 0.58 1%
emmah 9/10 3710 days true 0.52 1%
Dave Roebuck 10/10 3736 days 0.48 0%
steph_m 9/10 3836 days 0.31 0%
JasonL 8/10 3839 days true 0.29 0%
Tanja Kirschmann 10/10 3841 days 0.3 0%
MicheyJ 10/10 3842 days 0.3 0%
caz 10/10 3863 days 0.26 0%
Cilla 10/10 3868 days true 0.25 0%
Hannah 10/10 3871 days 0.25 0%
karlijn schaap 10/10 3947 days 0.12 0%
Murray 10/10 3978 days 0.06 0%
Jan Burch 9/10 4090 days 0.0 0%
zane mirfin 10/10 4146 days 0.0 0%
becky 10/10 4174 days 0.0 0%
dave 9/10 4202 days 0.0 0%
shinylight 9/10 4234 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

-1.28% 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 64 days. Adjustments are according to the following table.

Days Adjustment
61 -1.22%
62 -1.24%
63 -1.26%
64 -1.28%
65 -1.30%
66 -1.32%
67 -1.34%

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.