Hi, 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.
![](data:image/svg+xml;utf8,<svg width="300" height="300" viewBox="0 0 300 300" xmlns="http://www.w3.org/2000/svg"><rect id="bg" width="300" height="300" fill="rgb(46,196,145)" /><path d="m 150 605 Q 206 94 -305 150 Q 206 206 150 -305 Q 94 206 605 150 Q 94 94 150 605 z" fill="rgb(70,136,0)" /><path d="m 150 515 Q 296 4 -215 150 Q 296 296 150 -215 Q 4 296 515 150 Q 4 4 150 515 z" fill="rgb(185,119,255)" /><path d="m 150 176 Q 165 135 124 150 Q 165 165 150 124 Q 135 165 176 150 Q 135 135 150 176 z" fill="rgb(209,59,110)" /></svg>)
Tongariro River Rafting
Valid Reviews
168 Valid Reviews
The Tongariro River Rafting experience has a total of 169 reviews. There are 168 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 168 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 144 |
|
86% |
| 9/10 | 17 |
|
10% |
| 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% |
98.04% Average
The raw data average (mean) for all the Tongariro River Rafting valid reviews is 98.04% and is based on 168 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 168 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
99.63%
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 |
|---|---|---|---|
| Cody | 10/10 | 39 days | 100% |
| Madonna Thomson | 10/10 | 129 days | 99% |
| Amanda Thomson | 10/10 | 404 days | 91% |
| Peter Little | 10/10 | 433 days | 89% |
| Michaela Liff | 10/10 | 678 days | 74% |
| Kusum | 10/10 | 1135 days | 32% |
| Betty Dunn | 10/10 | 1163 days | 30% |
| Ruth | 10/10 | 1743 days | 5% |
| Gary Koh | 10/10 | 1956 days | 5% |
| Jan | 10/10 | 1986 days | 4% |
| Alison B. | 10/10 | 1986 days | 4% |
| John Olsen | 10/10 | 2017 days | 4% |
| Peter | 10/10 | 2109 days | 4% |
| Ben | 10/10 | 2139 days | 4% |
| Ian | 10/10 | 2200 days | 4% |
| Gary Walker | 10/10 | 2200 days | 4% |
| Rowella Bacwaden | 10/10 | 2231 days | 4% |
| Eileen H | 10/10 | 2290 days | 4% |
| Brad | 10/10 | 2351 days | 4% |
| Jared London | 10/10 | 2382 days | 4% |
| Helen Turner | 10/10 | 2412 days | 4% |
| James | 10/10 | 2443 days | 4% |
| Isabelle_Qc | 10/10 | 2474 days | 4% |
| Laura | 10/10 | 2504 days | 3% |
| ACE Richardson | 10/10 | 2535 days | 3% |
| Thea :-) | 10/10 | 2596 days | 3% |
| William Webb | 10/10 | 2624 days | 3% |
| Katelyn Mills | 10/10 | 2624 days | 3% |
| Mrs Smith | 10/10 | 2624 days | 3% |
| Mel | 10/10 | 2624 days | 3% |
| Wayne Smith | 10/10 | 2624 days | 3% |
| Kim | 10/10 | 2655 days | 3% |
| Songyang Liu | 10/10 | 2655 days | 3% |
| Mark Haydon | 10/10 | 2989 days | 3% |
| Kathryn Sherlock | 10/10 | 3204 days | 2% |
| Cherie Kemp | 10/10 | 3204 days | 2% |
| Renee Kemp | 10/10 | 3204 days | 2% |
| Patrick McIvor | 10/10 | 3326 days | 2% |
| Lengxi | 10/10 | 3352 days | 1% |
| Uschi Pongratz | 10/10 | 3360 days | 1% |
| Jessica Ruhland | 10/10 | 3360 days | 1% |
| Paul | 7/10 | 3365 days | 1% |
| Philip Piel | 8/10 | 3365 days | 1% |
| Chiara | 8/10 | 3365 days | 1% |
| Jess | 10/10 | 3402 days | 1% |
| TashJ | 10/10 | 3417 days | 2% |
| Funny Schutt | 10/10 | 3417 days | 2% |
| Craig McCarthy | 10/10 | 3447 days | 2% |
| Tim K | 10/10 | 3447 days | 2% |
| Jack Shearer | 10/10 | 3570 days | 1% |
| Monika M | 10/10 | 3600 days | 1% |
| Ian Wilmot | 10/10 | 3661 days | 1% |
| Rodger Lamb | 10/10 | 3692 days | 1% |
| Leah Kyllo | 10/10 | 3751 days | 1% |
| Juliet Battersby | 10/10 | 3751 days | 1% |
| Chris C | 10/10 | 3812 days | 1% |
| Jessica | 10/10 | 3904 days | 1% |
| Mike Hollows | 10/10 | 3996 days | 1% |
| Monique Hollows | 10/10 | 4057 days | 0% |
| Thomas Subritzky | 10/10 | 4057 days | 0% |
| hmsteele | 10/10 | 4085 days | 0% |
| andy godfrey | 9/10 | 4116 days | 0% |
| Chris Nisbet | 8/10 | 4116 days | 0% |
| Michelle Sanders | 9/10 | 4147 days | 0% |
| phil costello | 8/10 | 4177 days | 0% |
| Robyn Orchard | 10/10 | 4208 days | 0% |
| Gisele Phillips | 9/10 | 4208 days | 0% |
| E Wall | 10/10 | 4208 days | 0% |
| Julie | 10/10 | 4238 days | 0% |
| Little | 10/10 | 4238 days | 0% |
| Grahame Keast | 10/10 | 4269 days | 0% |
| Linda Bates | 10/10 | 4269 days | 0% |
| Morgan Buckingham | 10/10 | 4269 days | 0% |
| Bertiethebus | 10/10 | 4391 days | 1% |
| Julian Roots | 10/10 | 4422 days | 1% |
| Lynette Nicolson | 10/10 | 4481 days | 1% |
| RENs Rens | 10/10 | 4481 days | 1% |
| CKDNH | 10/10 | 4542 days | 1% |
| mattus | 9/10 | 4542 days | 1% |
| Ken | 10/10 | 4542 days | 1% |
| Kathy27 | 10/10 | 4542 days | 1% |
| ladywithplants | 9/10 | 4603 days | 1% |
| princessliz | 10/10 | 4603 days | 1% |
| lariley | 9/10 | 4603 days | 1% |
| richardp | 10/10 | 4634 days | 1% |
| prasanth03 | 10/10 | 4665 days | 1% |
| EllieW | 10/10 | 4695 days | 1% |
| Terry | 10/10 | 4756 days | 1% |
| Borderland | 10/10 | 4787 days | 1% |
| jimbob | 10/10 | 4787 days | 1% |
| mopheim | 10/10 | 4787 days | 1% |
| Mats Harstedt | 9/10 | 4796 days | 0% |
| KateS | 10/10 | 4816 days | 1% |
| RubberDuck | 10/10 | 4847 days | 1% |
| Red_Hurring | 10/10 | 4847 days | 1% |
| travelpam | 10/10 | 4847 days | 1% |
| barjjake | 9/10 | 4847 days | 1% |
| cindyd | 10/10 | 4878 days | 1% |
| webstersuk | 10/10 | 4878 days | 1% |
| pezalone | 10/10 | 4878 days | 1% |
| WiseOwl | 10/10 | 4878 days | 1% |
| mausandhari | 10/10 | 4878 days | 1% |
| Pauline | 10/10 | 4908 days | 1% |
| JadesWorld | 9/10 | 4908 days | 1% |
| utstarfish | 10/10 | 4908 days | 1% |
| johnco78 | 10/10 | 4908 days | 1% |
| jrwholey | 10/10 | 4939 days | 1% |
| ShawnM | 10/10 | 4939 days | 1% |
| Tarsh | 10/10 | 4939 days | 1% |
| lindahealey | 10/10 | 4939 days | 1% |
| campbell_steven | 10/10 | 4969 days | 1% |
| markrussell | 10/10 | 4969 days | 1% |
| Bayneer | 10/10 | 4969 days | 1% |
| jaspreetsohal86 | 10/10 | 4969 days | 1% |
| kiwiholly | 10/10 | 4969 days | 1% |
| garethd1980 | 10/10 | 4969 days | 1% |
| Mulliano | 10/10 | 4969 days | 1% |
| CathyK | 10/10 | 5000 days | 1% |
| silver | 10/10 | 5000 days | 1% |
| Meyerclan | 10/10 | 5031 days | 1% |
| poetania | 10/10 | 5061 days | 1% |
| southernboy611 | 10/10 | 5061 days | 1% |
| EvilChris | 10/10 | 5092 days | 1% |
| nia427 | 10/10 | 5122 days | 1% |
| Mags620 | 10/10 | 5122 days | 1% |
| deanblackburn | 10/10 | 5122 days | 1% |
| Heatherorchard | 10/10 | 5153 days | 1% |
| BeetleBom | 10/10 | 5153 days | 1% |
| AnnaBain | 10/10 | 5181 days | 1% |
| geezer | 10/10 | 5181 days | 1% |
| Jen | 10/10 | 5181 days | 1% |
| busheybrew | 10/10 | 5181 days | 1% |
| painter47 | 10/10 | 5212 days | 1% |
| ganbji | 9/10 | 5212 days | 1% |
| charles | 10/10 | 5243 days | 1% |
| alanos | 9/10 | 5243 days | 1% |
| teeneelz | 10/10 | 5243 days | 1% |
| Douggie | 7/10 | 5334 days | 1% |
| celticcolleen | 10/10 | 5457 days | 1% |
| MarcyMark | 10/10 | 5487 days | 1% |
| Susiekj | 10/10 | 5518 days | 1% |
| Kirsten | 10/10 | 5546 days | 1% |
| Ravi Chand | 10/10 | 5577 days | 1% |
| Sika | 10/10 | 5577 days | 1% |
| anthony mcclaren | 9/10 | 5577 days | 1% |
| menzel | 10/10 | 5591 days | 0% |
| joannaw | 10/10 | 5593 days | 0% |
| meisterbaumann | 10/10 | 5608 days | 1% |
| Stefanie Micheler | 10/10 | 5619 days | 0% |
| Aussies | 10/10 | 5638 days | 1% |
| Jake Volle | 10/10 | 5638 days | 1% |
| Jess Woods | 10/10 | 5699 days | 1% |
| emmah | 9/10 | 5735 days | 0% |
| Dave Roebuck | 10/10 | 5761 days | 1% |
| steph_m | 9/10 | 5862 days | 1% |
| JasonL | 8/10 | 5864 days | 0% |
| Tanja Kirschmann | 10/10 | 5866 days | 1% |
| MicheyJ | 10/10 | 5868 days | 1% |
| caz | 10/10 | 5889 days | 1% |
| Cilla | 10/10 | 5894 days | 0% |
| Hannah | 10/10 | 5896 days | 1% |
| karlijn schaap | 10/10 | 5973 days | 1% |
| Murray | 10/10 | 6003 days | 1% |
| Jan Burch | 9/10 | 6115 days | 1% |
| zane mirfin | 10/10 | 6172 days | 1% |
| becky | 10/10 | 6200 days | 1% |
| dave | 9/10 | 6228 days | 1% |
| shinylight | 9/10 | 6260 days | 1% |
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
-0.27% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 63 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 15 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 12 | -0.22% |
| 13 | -0.23% |
| 14 | -0.25% |
| 15 | -0.27% |
| 16 | -0.29% |
| 17 | -0.30% |
| 18 | -0.32% |
| … | … |
Balancing Adjustment
0.05% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
98%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.