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

137 Valid Reviews

The Tongariro River Rafting experience has a total of 137 valid reviews. There are no invalid reviews 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 137 valid reviews:

Rating Count Percentage
10/10 113
82%
9/10 17
12%
8/10 5
4%
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%

97.59% Average

The raw data average (mean) for all the Tongariro River Rafting valid reviews is 97.59% and is based on 137 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 137 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

97.47%

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 Relative Weight
Kim 10/10 47 days 100%
Songyang Liu 10/10 47 days 100%
Mark Haydon 10/10 381 days 77%
Kathryn Sherlock 10/10 596 days 44%
Cherie Kemp 10/10 596 days 44%
Renee Kemp 10/10 596 days 44%
Patrick McIvor 10/10 718 days 27%
Lengxi 10/10 745 days 28%
Uschi Pongratz 10/10 753 days 27%
Jessica Ruhland 10/10 753 days 27%
Paul 7/10 758 days 27%
Philip Piel 8/10 758 days 27%
Chiara 8/10 758 days 27%
Jess 10/10 795 days 22%
TashJ 10/10 809 days 17%
Funny Schutt 10/10 809 days 17%
Craig McCarthy 10/10 840 days 14%
Tim K 10/10 840 days 14%
Jack Shearer 10/10 962 days 6%
Monika M 10/10 993 days 5%
Ian Wilmot 10/10 1053 days 4%
Rodger Lamb 10/10 1084 days 4%
Leah Kyllo 10/10 1143 days 4%
Juliet Battersby 10/10 1143 days 4%
Chris C 10/10 1204 days 3%
Jessica 10/10 1296 days 3%
Mike Hollows 10/10 1388 days 3%
Monique Hollows 10/10 1449 days 3%
Thomas Subritzky 10/10 1450 days 3%
Helen Steele 10/10 1478 days 3%
andy godfrey 9/10 1509 days 3%
Chris Nisbet 8/10 1509 days 3%
Michelle Sanders 9/10 1540 days 3%
phil costello 8/10 1570 days 3%
Robyn Orchard 10/10 1601 days 3%
Gisele Phillips 9/10 1601 days 3%
E Wall 10/10 1601 days 3%
Julie 10/10 1631 days 3%
Little 10/10 1631 days 3%
Grahame Keast 10/10 1662 days 3%
Linda Bates 10/10 1662 days 3%
Morgan Buckingham 10/10 1662 days 3%
Bertiethebus 10/10 1784 days 3%
Julian Roots 10/10 1815 days 3%
Lynette Nicolson 10/10 1874 days 2%
RENs Rens 10/10 1874 days 2%
CKDNH 10/10 1935 days 2%
mattus 9/10 1935 days 2%
Ken 10/10 1935 days 2%
Kathy27 10/10 1935 days 2%
ladywithplants 9/10 1996 days 2%
princessliz 10/10 1996 days 2%
lariley 9/10 1996 days 2%
richardp 10/10 2027 days 2%
prasanth03 10/10 2058 days 2%
EllieW 10/10 2088 days 2%
Terry 10/10 2149 days 2%
Borderland 10/10 2180 days 2%
jimbob 10/10 2180 days 2%
mopheim 10/10 2180 days 2%
Mats Harstedt 9/10 2189 days 3%
KateS 10/10 2209 days 2%
RubberDuck 10/10 2240 days 2%
Red_Hurring 10/10 2240 days 2%
travelpam 10/10 2240 days 2%
barjjake 9/10 2240 days 2%
cindyd 10/10 2271 days 2%
webstersuk 10/10 2271 days 2%
pezalone 10/10 2271 days 2%
WiseOwl 10/10 2271 days 2%
mausandhari 10/10 2271 days 2%
Pauline 10/10 2301 days 2%
JadesWorld 9/10 2301 days 2%
utstarfish 10/10 2301 days 2%
johnco78 10/10 2301 days 2%
jrwholey 10/10 2332 days 2%
ShawnM 10/10 2332 days 2%
Tarsh 10/10 2332 days 2%
lindahealey 10/10 2332 days 2%
campbell_steven 10/10 2362 days 2%
markrussell 10/10 2362 days 2%
Bayneer 10/10 2362 days 2%
jaspreetsohal86 10/10 2362 days 2%
kiwiholly 10/10 2362 days 2%
garethd1980 10/10 2362 days 2%
Mulliano 10/10 2362 days 2%
CathyK 10/10 2393 days 2%
silver 10/10 2393 days 2%
Meyerclan 10/10 2424 days 2%
poetania 10/10 2454 days 2%
southernboy611 10/10 2454 days 2%
EvilChris 10/10 2485 days 2%
nia427 10/10 2515 days 2%
Mags620 10/10 2515 days 2%
deanblackburn 10/10 2515 days 2%
Heatherorchard 10/10 2546 days 2%
BeetleBom 10/10 2546 days 2%
AnnaBain 10/10 2574 days 2%
geezer 10/10 2574 days 2%
Jen 10/10 2574 days 2%
busheybrew 10/10 2574 days 2%
painter47 10/10 2605 days 1%
ganbji 9/10 2605 days 1%
charles 10/10 2636 days 1%
alanos 9/10 2636 days 1%
teeneelz 10/10 2636 days 1%
Douggie 7/10 2727 days 1%
celticcolleen 10/10 2850 days 1%
MarcyMark 10/10 2880 days 1%
Susiekj 10/10 2911 days 1%
Kirsten 10/10 2939 days 1%
Ravi Chand 10/10 2970 days 1%
Sika 10/10 2970 days 1%
anthony mcclaren 9/10 2970 days 1%
menzel 10/10 2984 days 1%
joannaw 10/10 2986 days 1%
meisterbaumann 10/10 3001 days 1%
Stefanie Micheler 10/10 3012 days 1%
Aussies 10/10 3031 days 1%
Jake Volle 10/10 3031 days 1%
Jess Woods 10/10 3092 days 1%
emmah 9/10 3128 days 1%
Dave Roebuck 10/10 3154 days 1%
steph_m 9/10 3254 days 1%
JasonL 8/10 3257 days 1%
Tanja Kirschmann 10/10 3259 days 1%
MicheyJ 10/10 3260 days 1%
caz 10/10 3281 days 1%
Cilla 10/10 3286 days 1%
Hannah 10/10 3289 days 1%
karlijn schaap 10/10 3365 days 0%
Murray 10/10 3396 days 0%
Jan Burch 9/10 3508 days 0%
zane mirfin 10/10 3564 days 0%
becky 10/10 3592 days 0%
dave 9/10 3620 days 0%
shinylight 9/10 3652 days 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

-0.22% 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 11 days. Adjustments are according to the following table.

Days Adjustment
8 -0.16%
9 -0.18%
10 -0.20%
11 -0.22%
12 -0.24%
13 -0.26%
14 -0.28%

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.