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

99.39%

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 21 days 99.93 100%
Brad 10/10 82 days 98.93 99%
Jared London 10/10 113 days 97.98 98%
Helen Turner 10/10 143 days 96.76 97%
James 10/10 174 days 95.2 95%
Isabelle_Qc 10/10 205 days 93.34 93%
Laura 10/10 235 days 91.25 91%
ACE Richardson 10/10 266 days 88.79 89%
Thea :-) 10/10 327 days 83.06 83%
William Webb 10/10 355 days 80.03 80%
Katelyn Mills 10/10 355 days 80.03 80%
Mrs Smith 10/10 355 days 80.03 80%
Mel 10/10 355 days 80.03 80%
Wayne Smith 10/10 355 days 80.03 80%
Kim 10/10 386 days 76.39 76%
Songyang Liu 10/10 386 days 76.39 76%
Mark Haydon 10/10 720 days 27.28 27%
Kathryn Sherlock 10/10 935 days 9.06 8%
Cherie Kemp 10/10 935 days 9.06 8%
Renee Kemp 10/10 935 days 9.06 8%
Patrick McIvor 10/10 1057 days 5.23 4%
Lengxi 10/10 1083 days true 6.03 5%
Uschi Pongratz 10/10 1091 days true 6.0 5%
Jessica Ruhland 10/10 1091 days true 6.0 5%
Paul 7/10 1096 days true 6.0 5%
Philip Piel 8/10 1096 days true 6.0 5%
Chiara 8/10 1096 days true 6.0 5%
Jess 10/10 1133 days true 5.94 5%
TashJ 10/10 1148 days 4.93 4%
Funny Schutt 10/10 1148 days 4.93 4%
Craig McCarthy 10/10 1178 days 4.89 4%
Tim K 10/10 1178 days 4.89 4%
Jack Shearer 10/10 1301 days 4.72 4%
Monika M 10/10 1331 days 4.68 4%
Ian Wilmot 10/10 1392 days 4.59 4%
Rodger Lamb 10/10 1423 days 4.55 4%
Leah Kyllo 10/10 1482 days 4.47 3%
Juliet Battersby 10/10 1482 days 4.47 3%
Chris C 10/10 1543 days 4.39 3%
Jessica 10/10 1635 days 4.26 3%
Mike Hollows 10/10 1727 days 4.13 3%
Monique Hollows 10/10 1788 days 4.05 3%
Thomas Subritzky 10/10 1788 days 4.05 3%
Helen Steele 10/10 1816 days 4.01 3%
andy godfrey 9/10 1847 days 3.97 3%
Chris Nisbet 8/10 1847 days 3.97 3%
Michelle Sanders 9/10 1878 days 3.93 3%
phil costello 8/10 1908 days 3.89 3%
Robyn Orchard 10/10 1939 days 3.84 3%
Gisele Phillips 9/10 1939 days 3.84 3%
E Wall 10/10 1939 days 3.84 3%
Julie 10/10 1969 days 3.8 3%
Little 10/10 1969 days 3.8 3%
Grahame Keast 10/10 2000 days 3.76 3%
Linda Bates 10/10 2000 days 3.76 3%
Morgan Buckingham 10/10 2000 days 3.76 3%
Bertiethebus 10/10 2122 days 3.59 3%
Julian Roots 10/10 2153 days 3.55 3%
Lynette Nicolson 10/10 2212 days 3.47 2%
RENs Rens 10/10 2212 days 3.47 2%
CKDNH 10/10 2273 days 3.39 2%
mattus 9/10 2273 days 3.39 2%
Ken 10/10 2273 days 3.39 2%
Kathy27 10/10 2273 days 3.39 2%
ladywithplants 9/10 2334 days 3.3 2%
princessliz 10/10 2334 days 3.3 2%
lariley 9/10 2334 days 3.3 2%
richardp 10/10 2365 days 3.26 2%
prasanth03 10/10 2396 days 3.22 2%
EllieW 10/10 2426 days 3.18 2%
Terry 10/10 2487 days 3.09 2%
Borderland 10/10 2518 days 3.05 2%
jimbob 10/10 2518 days 3.05 2%
mopheim 10/10 2518 days 3.05 2%
Mats Harstedt 9/10 2527 days true 3.65 3%
KateS 10/10 2547 days 3.01 2%
RubberDuck 10/10 2578 days 2.97 2%
Red_Hurring 10/10 2578 days 2.97 2%
travelpam 10/10 2578 days 2.97 2%
barjjake 9/10 2578 days 2.97 2%
cindyd 10/10 2609 days 2.93 2%
webstersuk 10/10 2609 days 2.93 2%
pezalone 10/10 2609 days 2.93 2%
WiseOwl 10/10 2609 days 2.93 2%
mausandhari 10/10 2609 days 2.93 2%
Pauline 10/10 2639 days 2.88 2%
JadesWorld 9/10 2639 days 2.88 2%
utstarfish 10/10 2639 days 2.88 2%
johnco78 10/10 2639 days 2.88 2%
jrwholey 10/10 2670 days 2.84 2%
ShawnM 10/10 2670 days 2.84 2%
Tarsh 10/10 2670 days 2.84 2%
lindahealey 10/10 2670 days 2.84 2%
campbell_steven 10/10 2700 days 2.8 2%
markrussell 10/10 2700 days 2.8 2%
Bayneer 10/10 2700 days 2.8 2%
jaspreetsohal86 10/10 2700 days 2.8 2%
kiwiholly 10/10 2700 days 2.8 2%
garethd1980 10/10 2700 days 2.8 2%
Mulliano 10/10 2700 days 2.8 2%
CathyK 10/10 2731 days 2.76 2%
silver 10/10 2731 days 2.76 2%
Meyerclan 10/10 2762 days 2.72 2%
poetania 10/10 2792 days 2.68 2%
southernboy611 10/10 2792 days 2.68 2%
EvilChris 10/10 2823 days 2.63 2%
nia427 10/10 2853 days 2.59 2%
Mags620 10/10 2853 days 2.59 2%
deanblackburn 10/10 2853 days 2.59 2%
Heatherorchard 10/10 2884 days 2.55 2%
BeetleBom 10/10 2884 days 2.55 2%
AnnaBain 10/10 2912 days 2.51 1%
geezer 10/10 2912 days 2.51 1%
Jen 10/10 2912 days 2.51 1%
busheybrew 10/10 2912 days 2.51 1%
painter47 10/10 2943 days 2.47 1%
ganbji 9/10 2943 days 2.47 1%
charles 10/10 2974 days 2.43 1%
alanos 9/10 2974 days 2.43 1%
teeneelz 10/10 2974 days 2.43 1%
Douggie 7/10 3065 days 2.3 1%
celticcolleen 10/10 3188 days 2.13 1%
MarcyMark 10/10 3218 days 2.09 1%
Susiekj 10/10 3249 days 2.05 1%
Kirsten 10/10 3277 days 2.01 1%
Ravi Chand 10/10 3308 days 1.97 1%
Sika 10/10 3308 days 1.97 1%
anthony mcclaren 9/10 3308 days 1.97 1%
menzel 10/10 3322 days true 2.34 1%
joannaw 10/10 3324 days true 2.34 1%
meisterbaumann 10/10 3339 days 1.93 1%
Stefanie Micheler 10/10 3350 days true 2.29 1%
Aussies 10/10 3369 days 1.88 1%
Jake Volle 10/10 3369 days 1.88 1%
Jess Woods 10/10 3430 days 1.8 1%
emmah 9/10 3466 days true 2.1 1%
Dave Roebuck 10/10 3492 days 1.72 1%
steph_m 9/10 3592 days 1.58 1%
JasonL 8/10 3595 days true 1.89 1%
Tanja Kirschmann 10/10 3597 days 1.57 1%
MicheyJ 10/10 3598 days 1.57 1%
caz 10/10 3619 days 1.54 1%
Cilla 10/10 3625 days true 1.84 1%
Hannah 10/10 3627 days 1.53 1%
karlijn schaap 10/10 3704 days 1.43 0%
Murray 10/10 3734 days 1.38 0%
Jan Burch 9/10 3846 days 1.23 0%
zane mirfin 10/10 3902 days 1.15 0%
becky 10/10 3930 days 1.12 0%
dave 9/10 3958 days 1.08 0%
shinylight 9/10 3990 days 1.03 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

-0.24% 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 12 days. Adjustments are according to the following table.

Days Adjustment
9 -0.18%
10 -0.20%
11 -0.22%
12 -0.24%
13 -0.26%
14 -0.28%
15 -0.30%

Final Ranking Score

99%

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.