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

102 Valid Reviews

The Ace Rental Cars experience has a total of 109 reviews. There are 102 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 102 valid reviews:

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

51.57% Average

The raw data average (mean) for all the Ace Rental Cars valid reviews is 51.57% and is based on 102 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 102 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

34.45%

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
Kim canny 1/10 54 days 72.66 73%
Neal Smith 10/10 84 days 98.88 100%
Marianne 1/10 360 days 58.01 59%
Andy Willmott 1/10 388 days 55.59 56%
Kate 1/10 388 days 55.59 56%
Luca Mangione 2/10 419 days 54.14 55%
John 2/10 419 days 54.14 55%
Sri Claney 1/10 450 days 49.58 50%
Tom 10/10 450 days 67.91 69%
Justin 1/10 541 days 39.14 40%
Dan 2/10 541 days 40.22 41%
PB 1/10 633 days 28.34 29%
Mike 2/10 694 days 22.86 23%
Siena 1/10 694 days 22.25 23%
Josephina 1/10 694 days 22.25 23%
RyLee B 1/10 784 days 14.84 15%
Chris Monk 1/10 1058 days 3.81 4%
Bryce Kehoe 8/10 1076 days true 4.8 5%
Martin Murlik 6/10 1080 days true 4.18 4%
Audrey Darling 1/10 1117 days 3.62 4%
Ben 8/10 1220 days true 4.52 5%
Jo Yo 1/10 1270 days 3.4 3%
Olivier Reculeau 8/10 1426 days true 4.13 4%
Bernhard Fichtl 5/10 1483 days true 3.43 3%
Casey O'Brien 2/10 1483 days 3.18 3%
Carmel Lackey 10/10 1607 days 4.0 4%
Martin B 2/10 1667 days 2.91 3%
S D 2/10 1728 days 2.82 3%
Dror Eyal 2/10 1820 days 2.69 3%
Ted Allan 2/10 1820 days 2.69 3%
Kat R 2/10 1848 days 2.64 3%
Tom Grigg 6/10 1861 days true 2.91 3%
Charlie Birdwick 9/10 1971 days 3.29 3%
Kiwinomad 1/10 2002 days 2.35 2%
Paje 2/10 2002 days 2.42 2%
MODADC 3/10 2033 days 2.44 2%
kjd 2/10 2155 days 2.19 2%
Pete Dixon 1/10 2213 days 2.05 2%
Diane S 9/10 2214 days 2.81 3%
Michael Rohn 8/10 2242 days true 2.62 3%
Cornelia Stark 9/10 2242 days true 2.76 3%
Michael Stark 10/10 2242 days true 2.76 3%
Tisa Duong 1/10 2245 days 2.01 2%
R K 1/10 2245 days 2.01 2%
Simon Kay 2/10 2245 days 2.06 2%
Annika Schmidt 7/10 2525 days true 2.0 2%
Patrick Stoeit 5/10 2525 days true 1.78 2%
Y S 10/10 2579 days 2.1 2%
Rikke E. 1/10 2610 days 1.49 2%
Takenforaride 1/10 2610 days 1.49 2%
sharnef 2/10 2702 days 1.39 1%
Tourist101 9/10 2702 days 1.86 2%
Jonas King 4/10 2763 days 1.37 1%
NoWonderAllKiwisAreInOZ 1/10 2824 days 1.18 1%
russwhanau 1/10 2885 days 1.09 1%
Marian Stolker 8/10 2932 days true 1.33 1%
Thomas Krause 5/10 2939 days true 1.13 1%
Chris & Jen Spencer 8/10 2956 days true 1.29 1%
Wendy Ashmore 10/10 3023 days true 1.23 1%
Hamlet 1/10 3129 days 0.74 1%
tonny_lim 1/10 3190 days 0.66 1%
Gunter 8/10 3265 days true 0.72 1%
Igor Cima 10/10 3268 days true 0.75 1%
Gary Koehler 8/10 3273 days true 0.7 1%
Ryan Dorsey 8/10 3279 days true 0.69 1%
Kathleen Brown 10/10 3280 days true 0.72 1%
Ross 10/10 3282 days 0.72 1%
Wendy Good 8/10 3284 days true 0.68 1%
Stacey Rees 2/10 3296 days true 0.52 1%
Helen Gilbertson 8/10 3309 days true 0.63 1%
Lacam 5/10 3310 days 0.54 1%
jls 1/10 3372 days 0.4 0%
chubby69 9/10 3525 days 0.24 0%
Ann Michle 8/10 3567 days true 0.15 0%
Rose Kearsley 7/10 3637 days true 0.02 0%
Jamie Hallifax 8/10 3666 days true 0.0 0%
meggles 2/10 3675 days 0.0 0%
Jane 8/10 3737 days 0.0 0%
Dimitry Zonnet 8/10 3763 days true 0.0 0%
S Schlesinger 10/10 3985 days 0.0 0%
Jessica Jobmann 7/10 3987 days true 0.0 0%
Mayer 8/10 3997 days true 0.0 0%
AnnickH 7/10 4003 days true 0.0 0%
OllyD 4/10 4010 days true 0.0 0%
Jasmin 7/10 4011 days true 0.0 0%
ChenM 9/10 4015 days true 0.0 0%
Mark 8/10 4053 days true 0.0 0%
Daryl 7/10 4054 days true 0.0 0%
Tim 8/10 4101 days true 0.0 0%
Kath 9/10 4158 days true 0.0 0%
Louise 9/10 4187 days true 0.0 0%
picman 1/10 4330 days 0.0 0%
Marian Mckinney 10/10 4374 days true 0.0 0%
Emma Dickinson 6/10 4378 days true 0.0 0%
Omri Hasson 4/10 4378 days true 0.0 0%
Ian and Judy 8/10 4382 days true 0.0 0%
Katharina 7/10 4393 days true 0.0 0%
Mike 3/10 4393 days true 0.0 0%
Mark 8/10 4409 days true 0.0 0%
Melissa Steedman 5/10 4420 days true 0.0 0%
Steven 9/10 4455 days true 0.0 0%
purplekat99 8/10 4529 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 Ace Rental Cars experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.41% 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. There may be an adjustment if an experience hasn't received any reviews within the last 60 days.

The Ace Rental Cars experience has 1 recent ranking. 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 199 days.

The Ace Rental Cars experience has been adjusted for 29 days. Adjustments are according to the following table.

Days Adjustment
26 -0.52%
27 -0.54%
28 -0.56%
29 -0.58%
30 -0.60%
31 -0.62%
32 -0.64%

Final Ranking Score

31%

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.