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

148 Valid Reviews

The Tongariro River Rafting experience has a total of 149 reviews. There are 148 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 148 valid reviews:

Rating Count Percentage
10/10 124
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%

97.77% Average

The raw data average (mean) for all the Tongariro River Rafting valid reviews is 97.77% and is based on 148 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 148 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

99.25%

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
Helen Turner 10/10 45 days 99.68 100%
James 10/10 76 days 99.08 99%
Isabelle_Qc 10/10 107 days 98.19 98%
Laura 10/10 137 days 97.03 97%
ACE Richardson 10/10 168 days 95.53 96%
Thea :-) 10/10 229 days 91.69 92%
William Webb 10/10 257 days 89.53 90%
Katelyn Mills 10/10 257 days 89.53 90%
Mrs Smith 10/10 257 days 89.53 90%
Mel 10/10 257 days 89.53 90%
Wayne Smith 10/10 257 days 89.53 90%
Kim 10/10 288 days 86.86 87%
Songyang Liu 10/10 288 days 86.86 87%
Mark Haydon 10/10 622 days 40.45 40%
Kathryn Sherlock 10/10 837 days 15.55 15%
Cherie Kemp 10/10 837 days 15.55 15%
Renee Kemp 10/10 837 days 15.55 15%
Patrick McIvor 10/10 959 days 7.93 7%
Lengxi 10/10 985 days true 8.3 7%
Uschi Pongratz 10/10 993 days true 7.98 7%
Jessica Ruhland 10/10 993 days true 7.98 7%
Paul 7/10 998 days true 7.79 7%
Philip Piel 8/10 998 days true 7.79 7%
Chiara 8/10 998 days true 7.79 7%
Jess 10/10 1035 days true 6.68 6%
TashJ 10/10 1050 days 5.32 4%
Funny Schutt 10/10 1050 days 5.32 4%
Craig McCarthy 10/10 1080 days 5.04 4%
Tim K 10/10 1080 days 5.04 4%
Jack Shearer 10/10 1203 days 4.85 4%
Monika M 10/10 1233 days 4.81 4%
Ian Wilmot 10/10 1294 days 4.73 4%
Rodger Lamb 10/10 1325 days 4.68 4%
Leah Kyllo 10/10 1384 days 4.6 3%
Juliet Battersby 10/10 1384 days 4.6 3%
Chris C 10/10 1445 days 4.52 3%
Jessica 10/10 1537 days 4.39 3%
Mike Hollows 10/10 1629 days 4.27 3%
Monique Hollows 10/10 1690 days 4.18 3%
Thomas Subritzky 10/10 1690 days 4.18 3%
Helen Steele 10/10 1718 days 4.15 3%
andy godfrey 9/10 1749 days 4.1 3%
Chris Nisbet 8/10 1749 days 4.1 3%
Michelle Sanders 9/10 1780 days 4.06 3%
phil costello 8/10 1810 days 4.02 3%
Robyn Orchard 10/10 1841 days 3.98 3%
Gisele Phillips 9/10 1841 days 3.98 3%
E Wall 10/10 1841 days 3.98 3%
Julie 10/10 1871 days 3.94 3%
Little 10/10 1871 days 3.94 3%
Grahame Keast 10/10 1902 days 3.89 3%
Linda Bates 10/10 1902 days 3.89 3%
Morgan Buckingham 10/10 1902 days 3.89 3%
Bertiethebus 10/10 2024 days 3.73 3%
Julian Roots 10/10 2055 days 3.68 3%
Lynette Nicolson 10/10 2114 days 3.6 2%
RENs Rens 10/10 2114 days 3.6 2%
CKDNH 10/10 2175 days 3.52 2%
mattus 9/10 2175 days 3.52 2%
Ken 10/10 2175 days 3.52 2%
Kathy27 10/10 2175 days 3.52 2%
ladywithplants 9/10 2236 days 3.44 2%
princessliz 10/10 2236 days 3.44 2%
lariley 9/10 2236 days 3.44 2%
richardp 10/10 2267 days 3.39 2%
prasanth03 10/10 2298 days 3.35 2%
EllieW 10/10 2328 days 3.31 2%
Terry 10/10 2389 days 3.23 2%
Borderland 10/10 2420 days 3.18 2%
jimbob 10/10 2420 days 3.18 2%
mopheim 10/10 2420 days 3.18 2%
Mats Harstedt 9/10 2429 days true 3.81 3%
KateS 10/10 2449 days 3.15 2%
RubberDuck 10/10 2480 days 3.1 2%
Red_Hurring 10/10 2480 days 3.1 2%
travelpam 10/10 2480 days 3.1 2%
barjjake 9/10 2480 days 3.1 2%
cindyd 10/10 2511 days 3.06 2%
webstersuk 10/10 2511 days 3.06 2%
pezalone 10/10 2511 days 3.06 2%
WiseOwl 10/10 2511 days 3.06 2%
mausandhari 10/10 2511 days 3.06 2%
Pauline 10/10 2541 days 3.02 2%
JadesWorld 9/10 2541 days 3.02 2%
utstarfish 10/10 2541 days 3.02 2%
johnco78 10/10 2541 days 3.02 2%
jrwholey 10/10 2572 days 2.98 2%
ShawnM 10/10 2572 days 2.98 2%
Tarsh 10/10 2572 days 2.98 2%
lindahealey 10/10 2572 days 2.98 2%
campbell_steven 10/10 2602 days 2.94 2%
markrussell 10/10 2602 days 2.94 2%
Bayneer 10/10 2602 days 2.94 2%
jaspreetsohal86 10/10 2602 days 2.94 2%
kiwiholly 10/10 2602 days 2.94 2%
garethd1980 10/10 2602 days 2.94 2%
Mulliano 10/10 2602 days 2.94 2%
CathyK 10/10 2633 days 2.89 2%
silver 10/10 2633 days 2.89 2%
Meyerclan 10/10 2664 days 2.85 2%
poetania 10/10 2694 days 2.81 2%
southernboy611 10/10 2694 days 2.81 2%
EvilChris 10/10 2725 days 2.77 2%
nia427 10/10 2755 days 2.73 2%
Mags620 10/10 2755 days 2.73 2%
deanblackburn 10/10 2755 days 2.73 2%
Heatherorchard 10/10 2786 days 2.68 2%
BeetleBom 10/10 2786 days 2.68 2%
AnnaBain 10/10 2814 days 2.65 1%
geezer 10/10 2814 days 2.65 1%
Jen 10/10 2814 days 2.65 1%
busheybrew 10/10 2814 days 2.65 1%
painter47 10/10 2845 days 2.6 1%
ganbji 9/10 2845 days 2.6 1%
charles 10/10 2876 days 2.56 1%
alanos 9/10 2876 days 2.56 1%
teeneelz 10/10 2876 days 2.56 1%
Douggie 7/10 2967 days 2.44 1%
celticcolleen 10/10 3090 days 2.27 1%
MarcyMark 10/10 3120 days 2.23 1%
Susiekj 10/10 3151 days 2.18 1%
Kirsten 10/10 3179 days 2.15 1%
Ravi Chand 10/10 3210 days 2.1 1%
Sika 10/10 3210 days 2.1 1%
anthony mcclaren 9/10 3210 days 2.1 1%
menzel 10/10 3224 days true 2.5 1%
joannaw 10/10 3226 days true 2.5 1%
meisterbaumann 10/10 3241 days 2.06 1%
Stefanie Micheler 10/10 3252 days true 2.45 1%
Aussies 10/10 3271 days 2.02 1%
Jake Volle 10/10 3271 days 2.02 1%
Jess Woods 10/10 3332 days 1.94 1%
emmah 9/10 3368 days true 2.26 1%
Dave Roebuck 10/10 3394 days 1.85 1%
steph_m 9/10 3494 days 1.71 1%
JasonL 8/10 3497 days true 2.05 1%
Tanja Kirschmann 10/10 3499 days 1.71 1%
MicheyJ 10/10 3500 days 1.71 1%
caz 10/10 3521 days 1.68 1%
Cilla 10/10 3526 days true 2.0 1%
Hannah 10/10 3529 days 1.67 1%
karlijn schaap 10/10 3606 days 1.56 0%
Murray 10/10 3636 days 1.52 0%
Jan Burch 9/10 3748 days 1.37 0%
zane mirfin 10/10 3804 days 1.29 0%
becky 10/10 3832 days 1.25 0%
dave 9/10 3860 days 1.21 0%
shinylight 9/10 3892 days 1.17 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

-0.40% 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 20 days. Adjustments are according to the following table.

Days Adjustment
17 -0.34%
18 -0.36%
19 -0.38%
20 -0.40%
21 -0.42%
22 -0.44%
23 -0.46%

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.