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 Balclutha Motor Camp.

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

Balclutha Motor Camp

Valid Reviews

35 Valid Reviews

The Balclutha Motor Camp experience has a total of 35 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 35 valid reviews:

Rating Count Percentage
10/10 15
9/10 7
8/10 4
7/10 5
6/10 3
5/10 0
4/10 0
3/10 0
2/10 1
1/10 0

85.71% Average

The raw data average (mean) for all the Balclutha Motor Camp valid reviews is 85.71% and is based on 35 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

10 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 35 valid reviews, the experience has 10 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 10 face-to-face reviews:

Rating Count Percentage
10/10 2
9/10 3
8/10 0
7/10 1
6/10 3
5/10 0
4/10 0
3/10 0
2/10 1
1/10 0

74.00% Average

The raw data average (mean) for all the Balclutha Motor Camp face-to-face reviews is 74.00% and is based on 10 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average


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
Suzanne 7/10 173 days 100%
Mudford Family 9/10 415 days 84%
Ana and Rob 7/10 446 days 72%
Robert Schwall 10/10 599 days 51%
Suzanne 10/10 659 days 40%
Kaloyan Radev 10/10 659 days 40%
Lisa 10/10 720 days 31%
Amelie Charrier 10/10 1085 days 6%
Esteban 10/10 1299 days 5%
Svetlana Shriyan 10/10 1358 days 5%
Brigham Edgar 7/10 1402 days 4%
Lizzie V 10/10 1419 days 5%
Birjit Jens 10/10 1437 days 5%
Chloe McKee 10/10 1551 days 5%
Tracey Tyson 9/10 1639 days 4%
María del Carmen Escandell 8/10 1992 days 3%
Hya@nztrip 9/10 2150 days 3%
Fiona and Ben 8/10 2211 days 3%
Yvonne Wu 10/10 2364 days 3%
Tyrell Seavey 10/10 2479 days 2%
Sina Leidig 10/10 2545 days 2%
Rob Bradbury 7/10 2850 days 1%
Andrew Grimes 6/10 3151 days 0%
Lynda Quartay 6/10 3151 days 0%
roos wubben 6/10 3262 days 0%
MeganG 8/10 3460 days 0%
Katrawa 9/10 3543 days 0%
Reed Bell 9/10 3826 days 1%
Manu & Gabi 10/10 3892 days 1%
Jenny & Barry Sleeman 7/10 3908 days 1%
jhwjhw 8/10 3915 days 1%
Don & Alice 9/10 4256 days 1%
Claudia 10/10 4259 days 1%
JaninaF 2/10 4604 days 0%
KathrinS 9/10 4606 days 1%


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 Balclutha Motor Camp experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-2.90% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 56 days. However the Balclutha Motor Camp 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 Balclutha Motor Camp experience has been adjusted for 158 days. Adjustments are according to the following table.

Days Adjustment
155 -2.85%
156 -2.87%
157 -2.89%
158 -2.90%
159 -2.92%
160 -2.94%
161 -2.96%

Final Ranking Score


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.