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

99.61%

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 10/10 188 days 94.4 100%
Jan 10/10 218 days 92.47 98%
Alison B. 10/10 218 days 92.47 98%
John Olsen 10/10 249 days 90.18 96%
Peter 10/10 341 days 81.57 86%
Ben 10/10 371 days 78.19 83%
Ian 10/10 432 days 70.43 75%
Gary Walker 10/10 432 days 70.43 75%
Rowella Bacwaden 10/10 463 days 66.03 70%
Eileen H 10/10 522 days 56.82 60%
Brad 10/10 583 days 46.54 49%
Jared London 10/10 614 days 41.66 44%
Helen Turner 10/10 644 days 37.23 39%
James 10/10 675 days 32.95 35%
Isabelle_Qc 10/10 706 days 28.98 31%
Laura 10/10 736 days 25.42 27%
ACE Richardson 10/10 767 days 22.05 23%
Thea :-) 10/10 828 days 16.3 17%
William Webb 10/10 856 days 14.05 15%
Katelyn Mills 10/10 856 days 14.05 15%
Mrs Smith 10/10 856 days 14.05 15%
Mel 10/10 856 days 14.05 15%
Wayne Smith 10/10 856 days 14.05 15%
Kim 10/10 887 days 11.86 13%
Songyang Liu 10/10 887 days 11.86 13%
Mark Haydon 10/10 1221 days 4.75 5%
Kathryn Sherlock 10/10 1436 days 4.33 5%
Cherie Kemp 10/10 1436 days 4.33 5%
Renee Kemp 10/10 1436 days 4.33 5%
Patrick McIvor 10/10 1558 days 4.09 4%
Lengxi 10/10 1584 days true 4.04 4%
Uschi Pongratz 10/10 1592 days true 4.03 4%
Jessica Ruhland 10/10 1592 days true 4.03 4%
Paul 7/10 1597 days true 3.66 4%
Philip Piel 8/10 1597 days true 3.82 4%
Chiara 8/10 1597 days true 3.82 4%
Jess 10/10 1634 days true 3.95 4%
TashJ 10/10 1649 days 3.92 4%
Funny Schutt 10/10 1649 days 3.92 4%
Craig McCarthy 10/10 1679 days 3.86 4%
Tim K 10/10 1679 days 3.86 4%
Jack Shearer 10/10 1802 days 3.62 4%
Monika M 10/10 1832 days 3.56 4%
Ian Wilmot 10/10 1893 days 3.44 4%
Rodger Lamb 10/10 1924 days 3.38 4%
Leah Kyllo 10/10 1983 days 3.26 3%
Juliet Battersby 10/10 1983 days 3.26 3%
Chris C 10/10 2044 days 3.14 3%
Jessica 10/10 2136 days 2.96 3%
Mike Hollows 10/10 2228 days 2.78 3%
Monique Hollows 10/10 2289 days 2.66 3%
Thomas Subritzky 10/10 2289 days 2.66 3%
hmsteele 10/10 2317 days 2.61 3%
andy godfrey 9/10 2348 days 2.55 3%
Chris Nisbet 8/10 2348 days 2.42 3%
Michelle Sanders 9/10 2379 days 2.49 3%
phil costello 8/10 2409 days 2.31 2%
Robyn Orchard 10/10 2440 days 2.37 3%
Gisele Phillips 9/10 2440 days 2.37 3%
E Wall 10/10 2440 days 2.37 3%
Julie 10/10 2470 days 2.31 2%
Little 10/10 2470 days 2.31 2%
Grahame Keast 10/10 2501 days 2.25 2%
Linda Bates 10/10 2501 days 2.25 2%
Morgan Buckingham 10/10 2501 days 2.25 2%
Bertiethebus 10/10 2623 days 2.01 2%
Julian Roots 10/10 2654 days 1.95 2%
Lynette Nicolson 10/10 2713 days 1.83 2%
RENs Rens 10/10 2713 days 1.83 2%
CKDNH 10/10 2774 days 1.71 2%
mattus 9/10 2774 days 1.71 2%
Ken 10/10 2774 days 1.71 2%
Kathy27 10/10 2774 days 1.71 2%
ladywithplants 9/10 2835 days 1.59 2%
princessliz 10/10 2835 days 1.59 2%
lariley 9/10 2835 days 1.59 2%
richardp 10/10 2866 days 1.53 2%
prasanth03 10/10 2897 days 1.47 2%
EllieW 10/10 2927 days 1.41 1%
Terry 10/10 2988 days 1.3 1%
Borderland 10/10 3019 days 1.23 1%
jimbob 10/10 3019 days 1.23 1%
mopheim 10/10 3019 days 1.23 1%
Mats Harstedt 9/10 3028 days true 1.22 1%
KateS 10/10 3048 days 1.18 1%
RubberDuck 10/10 3079 days 1.12 1%
Red_Hurring 10/10 3079 days 1.12 1%
travelpam 10/10 3079 days 1.12 1%
barjjake 9/10 3079 days 1.12 1%
cindyd 10/10 3110 days 1.06 1%
webstersuk 10/10 3110 days 1.06 1%
pezalone 10/10 3110 days 1.06 1%
WiseOwl 10/10 3110 days 1.06 1%
mausandhari 10/10 3110 days 1.06 1%
Pauline 10/10 3140 days 1.0 1%
JadesWorld 9/10 3140 days 1.0 1%
utstarfish 10/10 3140 days 1.0 1%
johnco78 10/10 3140 days 1.0 1%
jrwholey 10/10 3171 days 0.94 1%
ShawnM 10/10 3171 days 0.94 1%
Tarsh 10/10 3171 days 0.94 1%
lindahealey 10/10 3171 days 0.94 1%
campbell_steven 10/10 3201 days 0.88 1%
markrussell 10/10 3201 days 0.88 1%
Bayneer 10/10 3201 days 0.88 1%
jaspreetsohal86 10/10 3201 days 0.88 1%
kiwiholly 10/10 3201 days 0.88 1%
garethd1980 10/10 3201 days 0.88 1%
Mulliano 10/10 3201 days 0.88 1%
CathyK 10/10 3232 days 0.82 1%
silver 10/10 3232 days 0.82 1%
Meyerclan 10/10 3263 days 0.76 1%
poetania 10/10 3293 days 0.7 1%
southernboy611 10/10 3293 days 0.7 1%
EvilChris 10/10 3324 days 0.64 1%
nia427 10/10 3354 days 0.58 1%
Mags620 10/10 3354 days 0.58 1%
deanblackburn 10/10 3354 days 0.58 1%
Heatherorchard 10/10 3385 days 0.52 1%
BeetleBom 10/10 3385 days 0.52 1%
AnnaBain 10/10 3413 days 0.46 0%
geezer 10/10 3413 days 0.46 0%
Jen 10/10 3413 days 0.46 0%
busheybrew 10/10 3413 days 0.46 0%
painter47 10/10 3444 days 0.4 0%
ganbji 9/10 3444 days 0.4 0%
charles 10/10 3475 days 0.34 0%
alanos 9/10 3475 days 0.34 0%
teeneelz 10/10 3475 days 0.34 0%
Douggie 7/10 3566 days 0.15 0%
celticcolleen 10/10 3689 days 0.0 0%
MarcyMark 10/10 3719 days 0.0 0%
Susiekj 10/10 3750 days 0.0 0%
Kirsten 10/10 3778 days 0.0 0%
Ravi Chand 10/10 3809 days 0.0 0%
Sika 10/10 3809 days 0.0 0%
anthony mcclaren 9/10 3809 days 0.0 0%
menzel 10/10 3823 days true 0.0 0%
joannaw 10/10 3825 days true 0.0 0%
meisterbaumann 10/10 3840 days 0.0 0%
Stefanie Micheler 10/10 3851 days true 0.0 0%
Aussies 10/10 3870 days 0.0 0%
Jake Volle 10/10 3870 days 0.0 0%
Jess Woods 10/10 3931 days 0.0 0%
emmah 9/10 3967 days true 0.0 0%
Dave Roebuck 10/10 3993 days 0.0 0%
steph_m 9/10 4094 days 0.0 0%
JasonL 8/10 4096 days true 0.0 0%
Tanja Kirschmann 10/10 4098 days 0.0 0%
MicheyJ 10/10 4100 days 0.0 0%
caz 10/10 4121 days 0.0 0%
Cilla 10/10 4126 days true 0.0 0%
Hannah 10/10 4128 days 0.0 0%
karlijn schaap 10/10 4205 days 0.0 0%
Murray 10/10 4235 days 0.0 0%
Jan Burch 9/10 4347 days 0.0 0%
zane mirfin 10/10 4404 days 0.0 0%
becky 10/10 4432 days 0.0 0%
dave 9/10 4460 days 0.0 0%
shinylight 9/10 4491 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

-2.12% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 110 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 181 days. Adjustments are according to the following table.

Days Adjustment
178 -2.09%
179 -2.10%
180 -2.11%
181 -2.12%
182 -2.13%
183 -2.15%
184 -2.16%

Final Ranking Score

97%

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.