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

161 Valid Reviews

The Tongariro River Rafting experience has a total of 162 reviews. There are 161 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 161 valid reviews:

Rating Count Percentage
10/10 137
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%

97.95% Average

The raw data average (mean) for all the Tongariro River Rafting valid reviews is 97.95% and is based on 161 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 161 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

99.60%

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
Ruth 10/10 45 days 99.68 100%
Gary Koh 10/10 258 days 89.45 90%
Jan 10/10 288 days 86.86 87%
Alison B. 10/10 288 days 86.86 87%
John Olsen 10/10 319 days 83.87 84%
Peter 10/10 411 days 73.23 73%
Ben 10/10 441 days 69.18 69%
Ian 10/10 502 days 60.07 60%
Gary Walker 10/10 502 days 60.07 60%
Rowella Bacwaden 10/10 533 days 54.98 55%
Eileen H 10/10 592 days 45.09 45%
Brad 10/10 653 days 35.96 36%
Jared London 10/10 684 days 31.77 32%
Helen Turner 10/10 714 days 28.0 28%
James 10/10 745 days 24.41 24%
Isabelle_Qc 10/10 776 days 21.13 21%
Laura 10/10 806 days 18.23 18%
ACE Richardson 10/10 837 days 15.55 16%
Thea :-) 10/10 898 days 11.15 11%
William Webb 10/10 925 days 9.58 10%
Katelyn Mills 10/10 926 days 9.53 10%
Mrs Smith 10/10 926 days 9.53 10%
Mel 10/10 926 days 9.53 10%
Wayne Smith 10/10 926 days 9.53 10%
Kim 10/10 956 days 8.06 8%
Songyang Liu 10/10 956 days 8.06 8%
Mark Haydon 10/10 1290 days 4.62 5%
Kathryn Sherlock 10/10 1505 days 4.2 4%
Cherie Kemp 10/10 1505 days 4.2 4%
Renee Kemp 10/10 1505 days 4.2 4%
Patrick McIvor 10/10 1627 days 3.96 4%
Lengxi 10/10 1654 days true 3.91 4%
Uschi Pongratz 10/10 1662 days true 3.89 4%
Jessica Ruhland 10/10 1662 days true 3.89 4%
Paul 7/10 1667 days true 3.53 4%
Philip Piel 8/10 1667 days true 3.69 4%
Chiara 8/10 1667 days true 3.69 4%
Jess 10/10 1704 days true 3.81 4%
TashJ 10/10 1718 days 3.78 4%
Funny Schutt 10/10 1718 days 3.78 4%
Craig McCarthy 10/10 1749 days 3.72 4%
Tim K 10/10 1749 days 3.72 4%
Jack Shearer 10/10 1871 days 3.48 3%
Monika M 10/10 1902 days 3.42 3%
Ian Wilmot 10/10 1962 days 3.3 3%
Rodger Lamb 10/10 1993 days 3.24 3%
Leah Kyllo 10/10 2052 days 3.13 3%
Juliet Battersby 10/10 2052 days 3.13 3%
Chris C 10/10 2113 days 3.01 3%
Jessica 10/10 2205 days 2.83 3%
Mike Hollows 10/10 2297 days 2.65 3%
Monique Hollows 10/10 2358 days 2.53 3%
Thomas Subritzky 10/10 2359 days 2.53 3%
hmsteele 10/10 2387 days 2.47 2%
andy godfrey 9/10 2418 days 2.41 2%
Chris Nisbet 8/10 2418 days 2.29 2%
Michelle Sanders 9/10 2449 days 2.35 2%
phil costello 8/10 2479 days 2.18 2%
Robyn Orchard 10/10 2510 days 2.23 2%
Gisele Phillips 9/10 2510 days 2.23 2%
E Wall 10/10 2510 days 2.23 2%
Julie 10/10 2540 days 2.17 2%
Little 10/10 2540 days 2.17 2%
Grahame Keast 10/10 2571 days 2.11 2%
Linda Bates 10/10 2571 days 2.11 2%
Morgan Buckingham 10/10 2571 days 2.11 2%
Bertiethebus 10/10 2693 days 1.87 2%
Julian Roots 10/10 2724 days 1.81 2%
Lynette Nicolson 10/10 2783 days 1.7 2%
RENs Rens 10/10 2783 days 1.7 2%
CKDNH 10/10 2844 days 1.58 2%
mattus 9/10 2844 days 1.58 2%
Ken 10/10 2844 days 1.58 2%
Kathy27 10/10 2844 days 1.58 2%
ladywithplants 9/10 2905 days 1.46 1%
princessliz 10/10 2905 days 1.46 1%
lariley 9/10 2905 days 1.46 1%
richardp 10/10 2936 days 1.4 1%
prasanth03 10/10 2967 days 1.34 1%
EllieW 10/10 2997 days 1.28 1%
Terry 10/10 3058 days 1.16 1%
Borderland 10/10 3089 days 1.1 1%
jimbob 10/10 3089 days 1.1 1%
mopheim 10/10 3089 days 1.1 1%
Mats Harstedt 9/10 3098 days true 1.08 1%
KateS 10/10 3118 days 1.04 1%
RubberDuck 10/10 3149 days 0.98 1%
Red_Hurring 10/10 3149 days 0.98 1%
travelpam 10/10 3149 days 0.98 1%
barjjake 9/10 3149 days 0.98 1%
cindyd 10/10 3180 days 0.92 1%
webstersuk 10/10 3180 days 0.92 1%
pezalone 10/10 3180 days 0.92 1%
WiseOwl 10/10 3180 days 0.92 1%
mausandhari 10/10 3180 days 0.92 1%
Pauline 10/10 3210 days 0.86 1%
JadesWorld 9/10 3210 days 0.86 1%
utstarfish 10/10 3210 days 0.86 1%
johnco78 10/10 3210 days 0.86 1%
jrwholey 10/10 3241 days 0.8 1%
ShawnM 10/10 3241 days 0.8 1%
Tarsh 10/10 3241 days 0.8 1%
lindahealey 10/10 3241 days 0.8 1%
campbell_steven 10/10 3271 days 0.74 1%
markrussell 10/10 3271 days 0.74 1%
Bayneer 10/10 3271 days 0.74 1%
jaspreetsohal86 10/10 3271 days 0.74 1%
kiwiholly 10/10 3271 days 0.74 1%
garethd1980 10/10 3271 days 0.74 1%
Mulliano 10/10 3271 days 0.74 1%
CathyK 10/10 3302 days 0.68 1%
silver 10/10 3302 days 0.68 1%
Meyerclan 10/10 3333 days 0.62 1%
poetania 10/10 3363 days 0.56 1%
southernboy611 10/10 3363 days 0.56 1%
EvilChris 10/10 3394 days 0.5 1%
nia427 10/10 3424 days 0.44 0%
Mags620 10/10 3424 days 0.44 0%
deanblackburn 10/10 3424 days 0.44 0%
Heatherorchard 10/10 3455 days 0.38 0%
BeetleBom 10/10 3455 days 0.38 0%
AnnaBain 10/10 3483 days 0.33 0%
geezer 10/10 3483 days 0.33 0%
Jen 10/10 3483 days 0.33 0%
busheybrew 10/10 3483 days 0.33 0%
painter47 10/10 3514 days 0.27 0%
ganbji 9/10 3514 days 0.27 0%
charles 10/10 3545 days 0.21 0%
alanos 9/10 3545 days 0.21 0%
teeneelz 10/10 3545 days 0.21 0%
Douggie 7/10 3636 days 0.02 0%
celticcolleen 10/10 3759 days 0.0 0%
MarcyMark 10/10 3789 days 0.0 0%
Susiekj 10/10 3820 days 0.0 0%
Kirsten 10/10 3848 days 0.0 0%
Ravi Chand 10/10 3879 days 0.0 0%
Sika 10/10 3879 days 0.0 0%
anthony mcclaren 9/10 3879 days 0.0 0%
menzel 10/10 3893 days true 0.0 0%
joannaw 10/10 3895 days true 0.0 0%
meisterbaumann 10/10 3910 days 0.0 0%
Stefanie Micheler 10/10 3921 days true 0.0 0%
Aussies 10/10 3940 days 0.0 0%
Jake Volle 10/10 3940 days 0.0 0%
Jess Woods 10/10 4001 days 0.0 0%
emmah 9/10 4037 days true 0.0 0%
Dave Roebuck 10/10 4063 days 0.0 0%
steph_m 9/10 4163 days 0.0 0%
JasonL 8/10 4166 days true 0.0 0%
Tanja Kirschmann 10/10 4167 days 0.0 0%
MicheyJ 10/10 4169 days 0.0 0%
caz 10/10 4190 days 0.0 0%
Cilla 10/10 4195 days true 0.0 0%
Hannah 10/10 4197 days 0.0 0%
karlijn schaap 10/10 4274 days 0.0 0%
Murray 10/10 4304 days 0.0 0%
Jan Burch 9/10 4417 days 0.0 0%
zane mirfin 10/10 4473 days 0.0 0%
becky 10/10 4501 days 0.0 0%
dave 9/10 4529 days 0.0 0%
shinylight 9/10 4561 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

-0.45% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 113 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 39 days. Adjustments are according to the following table.

Days Adjustment
36 -0.42%
37 -0.43%
38 -0.44%
39 -0.45%
40 -0.46%
41 -0.47%
42 -0.49%

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.