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

146 Valid Reviews

The Tongariro River Rafting experience has a total of 147 reviews. There are 146 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 146 valid reviews:

Rating Count Percentage
10/10 122
84%
9/10 17
12%
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%

97.74% Average

The raw data average (mean) for all the Tongariro River Rafting valid reviews is 97.74% and is based on 146 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 146 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

99.07%

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
Isabelle_Qc 10/10 45 days 99.68 100%
Laura 10/10 75 days 99.11 99%
ACE Richardson 10/10 106 days 98.22 99%
Thea :-) 10/10 167 days 95.58 96%
William Webb 10/10 195 days 93.97 94%
Katelyn Mills 10/10 195 days 93.97 94%
Mrs Smith 10/10 195 days 93.97 94%
Mel 10/10 195 days 93.97 94%
Wayne Smith 10/10 195 days 93.97 94%
Kim 10/10 226 days 91.91 92%
Songyang Liu 10/10 226 days 91.91 92%
Mark Haydon 10/10 560 days 50.36 50%
Kathryn Sherlock 10/10 775 days 21.23 20%
Cherie Kemp 10/10 775 days 21.23 20%
Renee Kemp 10/10 775 days 21.23 20%
Patrick McIvor 10/10 897 days 11.21 10%
Lengxi 10/10 923 days true 11.63 11%
Uschi Pongratz 10/10 931 days true 11.11 10%
Jessica Ruhland 10/10 931 days true 11.11 10%
Paul 7/10 936 days true 10.81 10%
Philip Piel 8/10 936 days true 10.81 10%
Chiara 8/10 936 days true 10.81 10%
Jess 10/10 973 days true 8.83 8%
TashJ 10/10 988 days 6.81 6%
Funny Schutt 10/10 988 days 6.81 6%
Craig McCarthy 10/10 1018 days 5.94 5%
Tim K 10/10 1018 days 5.94 5%
Jack Shearer 10/10 1141 days 4.94 4%
Monika M 10/10 1171 days 4.9 4%
Ian Wilmot 10/10 1232 days 4.81 4%
Rodger Lamb 10/10 1263 days 4.77 4%
Leah Kyllo 10/10 1322 days 4.69 3%
Juliet Battersby 10/10 1322 days 4.69 3%
Chris C 10/10 1383 days 4.61 3%
Jessica 10/10 1475 days 4.48 3%
Mike Hollows 10/10 1567 days 4.35 3%
Monique Hollows 10/10 1628 days 4.27 3%
Thomas Subritzky 10/10 1628 days 4.27 3%
Helen Steele 10/10 1656 days 4.23 3%
andy godfrey 9/10 1687 days 4.19 3%
Chris Nisbet 8/10 1687 days 4.19 3%
Michelle Sanders 9/10 1718 days 4.15 3%
phil costello 8/10 1748 days 4.11 3%
Robyn Orchard 10/10 1779 days 4.06 3%
Gisele Phillips 9/10 1779 days 4.06 3%
E Wall 10/10 1779 days 4.06 3%
Julie 10/10 1809 days 4.02 3%
Little 10/10 1809 days 4.02 3%
Grahame Keast 10/10 1840 days 3.98 3%
Linda Bates 10/10 1840 days 3.98 3%
Morgan Buckingham 10/10 1840 days 3.98 3%
Bertiethebus 10/10 1962 days 3.81 3%
Julian Roots 10/10 1993 days 3.77 3%
Lynette Nicolson 10/10 2052 days 3.69 2%
RENs Rens 10/10 2052 days 3.69 2%
CKDNH 10/10 2113 days 3.61 2%
mattus 9/10 2113 days 3.61 2%
Ken 10/10 2113 days 3.61 2%
Kathy27 10/10 2113 days 3.61 2%
ladywithplants 9/10 2174 days 3.52 2%
princessliz 10/10 2174 days 3.52 2%
lariley 9/10 2174 days 3.52 2%
richardp 10/10 2205 days 3.48 2%
prasanth03 10/10 2236 days 3.44 2%
EllieW 10/10 2266 days 3.4 2%
Terry 10/10 2327 days 3.31 2%
Borderland 10/10 2358 days 3.27 2%
jimbob 10/10 2358 days 3.27 2%
mopheim 10/10 2358 days 3.27 2%
Mats Harstedt 9/10 2367 days true 3.91 3%
KateS 10/10 2387 days 3.23 2%
RubberDuck 10/10 2418 days 3.19 2%
Red_Hurring 10/10 2418 days 3.19 2%
travelpam 10/10 2418 days 3.19 2%
barjjake 9/10 2418 days 3.19 2%
cindyd 10/10 2449 days 3.15 2%
webstersuk 10/10 2449 days 3.15 2%
pezalone 10/10 2449 days 3.15 2%
WiseOwl 10/10 2449 days 3.15 2%
mausandhari 10/10 2449 days 3.15 2%
Pauline 10/10 2479 days 3.1 2%
JadesWorld 9/10 2479 days 3.1 2%
utstarfish 10/10 2479 days 3.1 2%
johnco78 10/10 2479 days 3.1 2%
jrwholey 10/10 2510 days 3.06 2%
ShawnM 10/10 2510 days 3.06 2%
Tarsh 10/10 2510 days 3.06 2%
lindahealey 10/10 2510 days 3.06 2%
campbell_steven 10/10 2540 days 3.02 2%
markrussell 10/10 2540 days 3.02 2%
Bayneer 10/10 2540 days 3.02 2%
jaspreetsohal86 10/10 2540 days 3.02 2%
kiwiholly 10/10 2540 days 3.02 2%
garethd1980 10/10 2540 days 3.02 2%
Mulliano 10/10 2540 days 3.02 2%
CathyK 10/10 2571 days 2.98 2%
silver 10/10 2571 days 2.98 2%
Meyerclan 10/10 2602 days 2.94 2%
poetania 10/10 2632 days 2.89 2%
southernboy611 10/10 2632 days 2.89 2%
EvilChris 10/10 2663 days 2.85 2%
nia427 10/10 2693 days 2.81 2%
Mags620 10/10 2693 days 2.81 2%
deanblackburn 10/10 2693 days 2.81 2%
Heatherorchard 10/10 2724 days 2.77 2%
BeetleBom 10/10 2724 days 2.77 2%
AnnaBain 10/10 2752 days 2.73 2%
geezer 10/10 2752 days 2.73 2%
Jen 10/10 2752 days 2.73 2%
busheybrew 10/10 2752 days 2.73 2%
painter47 10/10 2783 days 2.69 1%
ganbji 9/10 2783 days 2.69 1%
charles 10/10 2814 days 2.65 1%
alanos 9/10 2814 days 2.65 1%
teeneelz 10/10 2814 days 2.65 1%
Douggie 7/10 2905 days 2.52 1%
celticcolleen 10/10 3028 days 2.35 1%
MarcyMark 10/10 3058 days 2.31 1%
Susiekj 10/10 3089 days 2.27 1%
Kirsten 10/10 3117 days 2.23 1%
Ravi Chand 10/10 3148 days 2.19 1%
Sika 10/10 3148 days 2.19 1%
anthony mcclaren 9/10 3148 days 2.19 1%
menzel 10/10 3162 days true 2.6 1%
joannaw 10/10 3164 days true 2.6 1%
meisterbaumann 10/10 3179 days 2.15 1%
Stefanie Micheler 10/10 3190 days true 2.56 1%
Aussies 10/10 3209 days 2.1 1%
Jake Volle 10/10 3209 days 2.1 1%
Jess Woods 10/10 3270 days 2.02 1%
emmah 9/10 3306 days true 2.37 1%
Dave Roebuck 10/10 3332 days 1.94 1%
steph_m 9/10 3432 days 1.8 1%
JasonL 8/10 3435 days true 2.15 1%
Tanja Kirschmann 10/10 3437 days 1.79 1%
MicheyJ 10/10 3438 days 1.79 1%
caz 10/10 3459 days 1.76 1%
Cilla 10/10 3464 days true 2.11 1%
Hannah 10/10 3467 days 1.75 1%
karlijn schaap 10/10 3544 days 1.65 0%
Murray 10/10 3574 days 1.6 0%
Jan Burch 9/10 3686 days 1.45 0%
zane mirfin 10/10 3742 days 1.37 0%
becky 10/10 3770 days 1.34 0%
dave 9/10 3798 days 1.3 0%
shinylight 9/10 3830 days 1.25 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

-0.84% 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 42 days. Adjustments are according to the following table.

Days Adjustment
39 -0.78%
40 -0.80%
41 -0.82%
42 -0.84%
43 -0.86%
44 -0.88%
45 -0.90%

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.