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 Ace Rental Cars.

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

Ace Rental Cars

Valid Reviews

104 Valid Reviews

The Ace Rental Cars experience has a total of 111 reviews. There are 104 valid reviews that are included when calculating the ranking score and 7 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 104 valid reviews:

Rating Count Percentage
10/10 11
11%
9/10 9
9%
8/10 21
20%
7/10 7
7%
6/10 3
3%
5/10 5
5%
4/10 3
3%
3/10 2
2%
2/10 17
16%
1/10 26
25%

50.87% Average

The raw data average (mean) for all the Ace Rental Cars valid reviews is 50.87% and is based on 104 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

47 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 104 valid reviews, the experience has 47 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 47 face-to-face reviews:

Rating Count Percentage
10/10 5
11%
9/10 5
11%
8/10 19
40%
7/10 7
15%
6/10 3
6%
5/10 4
9%
4/10 2
4%
3/10 1
2%
2/10 1
2%
1/10 0
0%

73.83% Average

The raw data average (mean) for all the Ace Rental Cars face-to-face reviews is 73.83% and is based on 47 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

36.98%

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
John 1/10 328 days 84%
Kim canny 1/10 388 days 77%
Richard Bird 2/10 388 days 79%
Neal Smith 10/10 419 days 100%
Marianne 1/10 694 days 31%
Andy Willmott 1/10 722 days 27%
Kate 1/10 722 days 27%
Luca Mangione 2/10 753 days 24%
John 2/10 753 days 24%
Sri Claney 1/10 784 days 21%
Tom 10/10 784 days 28%
Justin 1/10 875 days 13%
Dan 2/10 875 days 13%
PB 1/10 967 days 8%
Mike 2/10 1028 days 6%
Siena 1/10 1028 days 6%
Josephina 1/10 1028 days 6%
RyLee B 1/10 1118 days 5%
Chris Monk 1/10 1393 days 4%
Bryce Kehoe 8/10 1410 days 6%
Martin Murlik 6/10 1414 days 5%
Audrey Darling 1/10 1452 days 4%
Ben 8/10 1554 days 5%
Jo Yo 1/10 1605 days 4%
Olivier Reculeau 8/10 1760 days 5%
Bernhard Fichtl 5/10 1817 days 4%
Casey O'Brien 2/10 1818 days 4%
Carmel Lackey 10/10 1941 days 5%
Martin B 2/10 2002 days 3%
S D 2/10 2063 days 3%
Dror Eyal 2/10 2155 days 3%
Ted Allan 2/10 2155 days 3%
Kat R 2/10 2183 days 3%
Tom Grigg 6/10 2195 days 3%
Charlie Birdwick 9/10 2306 days 4%
Kiwinomad 1/10 2336 days 3%
Paje 2/10 2336 days 3%
MODADC 3/10 2367 days 3%
kjd 2/10 2489 days 2%
Pete Dixon 1/10 2548 days 2%
Diane S 9/10 2548 days 3%
Michael Rohn 8/10 2576 days 3%
Cornelia Stark 9/10 2576 days 3%
Michael Stark 10/10 2576 days 3%
Tisa Duong 1/10 2579 days 2%
R K 1/10 2579 days 2%
Simon Kay 2/10 2579 days 2%
Annika Schmidt 7/10 2859 days 2%
Patrick Stoeit 5/10 2859 days 2%
Y S 10/10 2913 days 2%
Rikke E. 1/10 2944 days 1%
Takenforaride 1/10 2944 days 1%
sharnef 2/10 3036 days 1%
Tourist101 9/10 3036 days 2%
Jonas King 4/10 3097 days 1%
NoWonderAllKiwisAreInOZ 1/10 3158 days 1%
russwhanau 1/10 3219 days 1%
Marian Stolker 8/10 3266 days 1%
Thomas Krause 5/10 3273 days 1%
Chris & Jen Spencer 8/10 3290 days 1%
Wendy Ashmore 10/10 3357 days 1%
Hamlet 1/10 3463 days 0%
tonny_lim 1/10 3524 days 0%
Gunter 8/10 3599 days 0%
Igor Cima 10/10 3602 days 0%
Gary Koehler 8/10 3607 days 0%
Ryan Dorsey 8/10 3613 days 0%
Kathleen Brown 10/10 3614 days 0%
Ross 10/10 3616 days 0%
Wendy Good 8/10 3618 days 0%
Stacey Rees 2/10 3630 days 0%
Helen Gilbertson 8/10 3643 days 0%
Lacam 5/10 3644 days 0%
jls 1/10 3706 days 1%
chubby69 9/10 3859 days 1%
Ann Michle 8/10 3901 days 1%
Rose Kearsley 7/10 3971 days 1%
Jamie Hallifax 8/10 4000 days 1%
meggles 2/10 4009 days 1%
Jane 8/10 4071 days 1%
Dimitry Zonnet 8/10 4097 days 1%
S Schlesinger 10/10 4319 days 1%
Jessica Jobmann 7/10 4322 days 1%
Mayer 8/10 4332 days 1%
AnnickH 7/10 4337 days 1%
OllyD 4/10 4344 days 1%
Jasmin 7/10 4346 days 1%
ChenM 9/10 4349 days 1%
Mark 8/10 4387 days 1%
Daryl 7/10 4388 days 1%
Tim 8/10 4436 days 1%
Kath 9/10 4493 days 1%
Louise 9/10 4522 days 1%
Edmund Hillstone 1/10 4665 days 1%
Marian Mckinney 10/10 4708 days 1%
Emma Dickinson 6/10 4712 days 1%
Omri Hasson 4/10 4712 days 1%
Ian and Judy 8/10 4716 days 1%
Katharina 7/10 4727 days 1%
Mike 3/10 4727 days 1%
Mark 8/10 4743 days 1%
Melissa Steedman 5/10 4754 days 1%
Steven 9/10 4789 days 1%
purplekat99 8/10 4863 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 Ace Rental Cars experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-7.11% Adjustment

Recent reviews reflect the experience as it currently operates. This means it's important to get fresh reviews. Some experiences discovered they could get a few good reviews and then, resting on their laurels, discourage any further reviews. This adjustment stimulates experiences to be positively involved in the review generating process and discourages them from manipulating the ranking system in this manner.

What constitutes a recent review is based on the how old it is, what type of experience it is applied to and and what time of year it currently is. Due to the seasonal nature of many businesses, what is considered recent is dynamically adjusted throughout the year.

There may be an adjustment if this experience hasn't received enough reviews within the last 48 days. The Ace Rental Cars experience has 0 recent rankings. Adjustments are according to the following table:

Recent Reviews Adjustment
0 -3.00%
1 -2.83%
2 -2.33%
3 -1.50%
4 -0.67%
5 -0.17%
6 -0.00%

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 Ace Rental Cars experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -4.05%
198 -4.07%
199 -4.09%
200 -4.11%
201 -4.13%
202 -4.16%
203 -4.18%

Final Ranking Score

30%

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.