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 Stray.

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

Stray

Valid Reviews

195 Valid Reviews

The Stray experience has a total of 202 reviews. There are 195 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 195 valid reviews:

Rating Count Percentage
10/10 62
32%
9/10 42
22%
8/10 36
18%
7/10 31
16%
6/10 9
5%
5/10 7
4%
4/10 3
2%
3/10 5
3%
2/10 0
0%
1/10 0
0%

83.03% Average

The raw data average (mean) for all the Stray valid reviews is 83.03% and is based on 195 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

101 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 195 valid reviews, the experience has 101 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 101 face-to-face reviews:

Rating Count Percentage
10/10 10
10%
9/10 15
15%
8/10 30
30%
7/10 28
28%
6/10 6
6%
5/10 4
4%
4/10 3
3%
3/10 5
5%
2/10 0
0%
1/10 0
0%

74.65% Average

The raw data average (mean) for all the Stray face-to-face reviews is 74.65% and is based on 101 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

88.57%

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
Atte 6/10 756 days 19.26 100%
Tom C 10/10 1547 days 4.12 21%
Jodie 10/10 1547 days 4.12 21%
Paul 10/10 1547 days 4.12 21%
Christin Ossege 10/10 1669 days 3.88 20%
Theodore Trozinski 9/10 1729 days 3.76 20%
Phil Hartmann 10/10 1882 days 3.46 18%
dana forrest 10/10 1974 days 3.28 17%
Abbi Smith 10/10 2035 days 3.16 16%
Nicko Wong 10/10 2066 days 3.1 16%
Jodine 10/10 2094 days 3.05 16%
Samuel Berwick 10/10 2094 days 3.05 16%
Amy Jellings 10/10 2186 days 2.86 15%
Anna Elden 9/10 2186 days 2.86 15%
Andrea Leichtl 10/10 2400 days 2.45 13%
Johanna Molenaar 7/10 2400 days 2.23 12%
Claudia Bauch 3/10 2429 days true 1.84 10%
Charlotte Wilson 10/10 2431 days 2.39 12%
Chris Luebbi 8/10 2431 days 2.27 12%
jason beinstein 9/10 2459 days 2.33 12%
discoveringaway 9/10 2459 days 2.33 12%
ieva m 8/10 2490 days 2.16 11%
Sonia 10/10 2490 days 2.27 12%
Zsolt 10/10 2490 days 2.27 12%
Victoria Wander 10/10 2490 days 2.27 12%
TtotheT13 9/10 2521 days 2.21 11%
Kim O'Neill 10/10 2551 days 2.15 11%
Maia Kazaks 8/10 2551 days 2.04 11%
Colette Keely 10/10 2582 days 2.09 11%
Jen Hards 10/10 2612 days 2.03 11%
Thomas Jones 10/10 2643 days 1.97 10%
Raj Singh 10/10 2643 days 1.97 10%
Sohie 9/10 2801 days true 1.66 9%
Robin Andersson 9/10 2824 days 1.62 8%
Megan Gallagher 10/10 2855 days 1.56 8%
Andy Brown 10/10 2855 days 1.56 8%
Vinnie K 10/10 2916 days 1.44 7%
Heather_Oz 9/10 2977 days 1.32 7%
luciasolda 10/10 3039 days 1.2 6%
jennyj 10/10 3069 days 1.14 6%
dwehrtmann 9/10 3100 days 1.08 6%
Evaislief 10/10 3130 days 1.02 5%
Malena 10/10 3161 days 0.96 5%
navilink 10/10 3161 days 0.96 5%
meganb04 10/10 3161 days 0.96 5%
MaryG 10/10 3161 days 0.96 5%
JoPycroft 10/10 3161 days 0.96 5%
lovebyname 9/10 3161 days 0.96 5%
Sonia Sennane 7/10 3162 days true 0.87 5%
Tamara McVey 7/10 3173 days true 0.85 4%
Rachel 7/10 3175 days true 0.85 4%
Danielle & Jobbe 8/10 3175 days true 0.88 5%
Andy Bridgman 8/10 3175 days true 0.88 5%
Fiona Finke 6/10 3181 days true 0.76 4%
Miron & Hendrik 8/10 3185 days true 0.86 4%
marielou 10/10 3190 days 0.9 5%
iainmcgin 10/10 3190 days 0.9 5%
redkeels 10/10 3190 days 0.9 5%
lulu 6/10 3221 days 0.7 4%
Boogie 5/10 3252 days 0.63 3%
isha 9/10 3252 days 0.78 4%
pepper 9/10 3282 days 0.72 4%
Kez 10/10 3313 days 0.66 3%
Brilly01 8/10 3313 days 0.63 3%
yens123 9/10 3313 days 0.66 3%
louiset 9/10 3313 days 0.66 3%
siek09 9/10 3343 days 0.6 3%
rosey 10/10 3374 days 0.54 3%
Cadz 10/10 3374 days 0.54 3%
natalietrueman84 10/10 3405 days 0.48 2%
Josie 10/10 3405 days 0.48 2%
Scott_and_Stephanie 9/10 3496 days 0.3 2%
Samantha 10/10 3496 days 0.3 2%
Tracey Airiscough 9/10 3518 days true 0.26 1%
Vanessa Hanzen 4/10 3519 days true 0.2 1%
Lauren McKeone 7/10 3525 days true 0.22 1%
Faye Cox 7/10 3525 days true 0.22 1%
pudddddin 9/10 3527 days 0.24 1%
alicevarren 9/10 3527 days 0.24 1%
irisheyes 7/10 3527 days 0.22 1%
Steff 7/10 3547 days true 0.18 1%
Forestal Youri 7/10 3547 days true 0.18 1%
Amanda Craig 8/10 3549 days true 0.19 1%
Olle Beide 8/10 3555 days true 0.18 1%
JonathanMills 8/10 3555 days 0.18 1%
lisa 9/10 3586 days 0.13 1%
phydough 6/10 3617 days 0.05 0%
zippy 10/10 3708 days 0.0 0%
TerriH 10/10 3739 days 0.0 0%
ciara 10/10 3770 days 0.0 0%
mel1407 10/10 3770 days 0.0 0%
Claram 9/10 3800 days 0.0 0%
joycevanb 7/10 3831 days true 0.0 0%
JohnG 10/10 3831 days 0.0 0%
nicolejr413 9/10 3861 days 0.0 0%
Antoine Migault 8/10 3882 days true 0.0 0%
Christine T 7/10 3886 days true 0.0 0%
Kay Beaumont 8/10 3894 days true 0.0 0%
Johan 7/10 3894 days true 0.0 0%
S Millet 9/10 3898 days true 0.0 0%
Jens van Evp 9/10 3916 days true 0.0 0%
Max Van der Zalm 9/10 3916 days true 0.0 0%
Emily Walters 7/10 3918 days true 0.0 0%
Brett Oz 9/10 3951 days 0.0 0%
greenbex 9/10 3951 days 0.0 0%
simonbo 3/10 3966 days true 0.0 0%
katesc 9/10 3971 days true 0.0 0%
martint 6/10 3975 days true 0.0 0%
richelle 7/10 3975 days true 0.0 0%
rosalindm 8/10 3976 days true 0.0 0%
katepat 8/10 3982 days true 0.0 0%
Beau 5/10 3982 days 0.0 0%
Debbie Rathbone 10/10 3989 days true 0.0 0%
Ricarda 3/10 3992 days true 0.0 0%
Malinka Nuefeld 4/10 3992 days true 0.0 0%
Martin 9/10 3992 days true 0.0 0%
Thomas Willi 8/10 3992 days true 0.0 0%
Jess Pasos 9/10 4001 days true 0.0 0%
stettim 10/10 4043 days 0.0 0%
Philipp 9/10 4043 days 0.0 0%
Holly Mrowiec 10/10 4073 days 0.0 0%
Sophie Keate 10/10 4110 days true 0.0 0%
Sam Lightfoot 10/10 4110 days true 0.0 0%
Jenny Lee 7/10 4132 days true 0.0 0%
Cat Payne 9/10 4139 days true 0.0 0%
Catherine Smiles 10/10 4140 days true 0.0 0%
Nikki Turner 9/10 4147 days true 0.0 0%
TaraD 10/10 4224 days true 0.0 0%
BiancaA 9/10 4224 days true 0.0 0%
hibbler 10/10 4226 days 0.0 0%
ferdinande 7/10 4228 days true 0.0 0%
mariea 8/10 4238 days true 0.0 0%
JennekeK 6/10 4238 days true 0.0 0%
Ross 5/10 4240 days 0.0 0%
MarielR 7/10 4244 days true 0.0 0%
NikW 8/10 4244 days true 0.0 0%
Anna Skeer 9/10 4267 days 0.0 0%
EmmaB1 8/10 4272 days true 0.0 0%
BethanD 9/10 4273 days true 0.0 0%
renanf 8/10 4277 days 0.0 0%
Laura Muser 9/10 4285 days 0.0 0%
Alan Gallagher 7/10 4285 days 0.0 0%
Ellen Perrin 9/10 4285 days 0.0 0%
Julia 7/10 4288 days true 0.0 0%
Philipp 10/10 4291 days true 0.0 0%
Marieke 3/10 4292 days true 0.0 0%
Katie 10/10 4295 days 0.0 0%
Ann-Kathren 7/10 4299 days true 0.0 0%
Sonja 8/10 4331 days true 0.0 0%
Claudia Schmidt 9/10 4343 days 0.0 0%
sylvia 8/10 4348 days true 0.0 0%
Amy Newton 10/10 4351 days 0.0 0%
debsnz 10/10 4364 days 0.0 0%
Nicole 3/10 4373 days true 0.0 0%
Spike 7/10 4433 days true 0.0 0%
Sam Prior 8/10 4442 days true 0.0 0%
Marco 7/10 4466 days true 0.0 0%
Meike Biel 8/10 4576 days true 0.0 0%
Helen 8/10 4576 days true 0.0 0%
Mark 7/10 4596 days true 0.0 0%
Julie 5/10 4606 days true 0.0 0%
Marlo 7/10 4613 days true 0.0 0%
Simon Mills 8/10 4623 days true 0.0 0%
Sayaka 4/10 4638 days true 0.0 0%
Camille 10/10 4639 days true 0.0 0%
Anders 9/10 4639 days true 0.0 0%
Laura 8/10 4662 days true 0.0 0%
Ian 7/10 4666 days true 0.0 0%
Carole Roccia 6/10 4667 days true 0.0 0%
Thierry Berdah 8/10 4669 days true 0.0 0%
Helena 8/10 4669 days true 0.0 0%
Peter Katafey 6/10 4669 days true 0.0 0%
Lindsey Woosnam 5/10 4669 days true 0.0 0%
Katherine 7/10 4672 days true 0.0 0%
Fred 6/10 4673 days true 0.0 0%
Rob 5/10 4673 days true 0.0 0%
Gav 10/10 4673 days true 0.0 0%
Tom Anson 8/10 4674 days true 0.0 0%
Paul Cowie 10/10 4701 days true 0.0 0%
Jim 8/10 4710 days true 0.0 0%
Willemien 7/10 4718 days true 0.0 0%
Helen 8/10 4944 days true 0.0 0%
David 5/10 4947 days true 0.0 0%
Stefan 7/10 4947 days true 0.0 0%
Gwen 8/10 4950 days true 0.0 0%
Hanneke 8/10 4954 days true 0.0 0%
Matt 7/10 4954 days true 0.0 0%
Alex 8/10 4954 days true 0.0 0%
Johnny 8/10 4954 days true 0.0 0%
Aaron 9/10 4954 days true 0.0 0%
Hilary 10/10 4963 days true 0.0 0%
Nina 8/10 4998 days true 0.0 0%
Italy 9/10 4998 days true 0.0 0%
Helle 7/10 4998 days true 0.0 0%
KikiNelissen 7/10 5004 days true 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 Stray experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-3.78% Adjustment

There may be an adjustment if this experience hasn't received any reviews within the last 53 days. However the Stray 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 Stray experience has been adjusted for 200 days. Adjustments are according to the following table.

Days Adjustment
197 -3.72%
198 -3.74%
199 -3.76%
200 -3.78%
201 -3.80%
202 -3.82%
203 -3.84%

Final Ranking Score

85%

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.