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 Spaceships.

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

Spaceships

Valid Reviews

308 Valid Reviews

The Spaceships experience has a total of 318 reviews. There are 308 valid reviews that are included when calculating the ranking score and 10 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 308 valid reviews:

Rating Count Percentage
10/10 45
15%
9/10 80
26%
8/10 93
30%
7/10 47
15%
6/10 16
5%
5/10 10
3%
4/10 8
3%
3/10 6
2%
2/10 1
0%
1/10 2
1%

79.32% Average

The raw data average (mean) for all the Spaceships valid reviews is 79.32% and is based on 308 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

199 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 308 valid reviews, the experience has 199 face-to-face reviews collected during interviews by our team.

Below is the distribution of ratings for the 199 face-to-face reviews:

Rating Count Percentage
10/10 10
5%
9/10 42
21%
8/10 76
38%
7/10 41
21%
6/10 14
7%
5/10 7
4%
4/10 5
3%
3/10 4
2%
2/10 0
0%
1/10 0
0%

76.58% Average

The raw data average (mean) for all the Spaceships face-to-face reviews is 76.58% and is based on 199 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.

Weighted Average

80.35%

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
Keisha Quinn 10/10 46 days 99.66 100%
Laurent AUBERTIN 8/10 46 days 99.66 100%
Esmee 10/10 47 days 99.65 100%
Laura Mayer, Tobias Dürr 4/10 47 days 92.67 93%
Nitasha Rehman 7/10 76 days 99.08 99%
Celeste Schwarz 7/10 76 days 99.08 99%
Jaclyn Mills 9/10 76 days 99.08 99%
Hayley Pickering 9/10 76 days 99.08 99%
Imrich Kiss 9/10 77 days 99.06 99%
borha mohd zain 1/10 77 days 84.2 84%
aLVARO Gonzalez 10/10 107 days 98.19 99%
Suhui Hee 8/10 107 days 98.19 99%
David Coleman 9/10 107 days 98.19 99%
Susan Cook 9/10 260 days 89.29 90%
Mark Fitzpatrick 6/10 290 days 86.67 87%
Trina Ludwig 8/10 290 days 86.67 87%
Katherine Hugh 10/10 349 days 80.7 81%
Jacinta Norton 8/10 380 days 77.12 77%
Heather ryckman 4/10 380 days 71.72 72%
Merrit Savener 9/10 380 days 77.12 77%
Kah Yi Choong 8/10 380 days 77.12 77%
Alexandra Coffey 10/10 411 days 73.23 73%
Matiu Iraia 9/10 411 days 73.23 73%
Laura Elliott 10/10 441 days 69.18 69%
Clint Bradley 5/10 441 days 69.18 69%
Felix Haget 9/10 441 days 69.18 69%
sue Winterton 8/10 441 days 69.18 69%
S H 3/10 472 days 58.87 59%
Olli Jarva 7/10 472 days 64.7 65%
Set Lee Chong 9/10 533 days 54.98 55%
MING HUI FONG 8/10 594 days 44.77 45%
Julie Costa 9/10 625 days 40.0 40%
Medro Brodeur 9/10 625 days 40.0 40%
Ylva Teleman 10/10 682 days true 38.43 38%
roger loyer 8/10 686 days 31.51 31%
David Henry 8/10 686 days 31.51 31%
Kilian Frank 9/10 686 days 31.51 31%
Trine and Malin 9/10 689 days true 37.34 37%
Katey Bell 7/10 692 days true 36.88 37%
Natasha Startup 10/10 698 days true 35.97 36%
Ron Hawkins 10/10 714 days 28.0 28%
Ana Masu 9/10 714 days 28.0 28%
Heather Balch 9/10 714 days 28.0 28%
Linda Livett 9/10 714 days 28.0 28%
Lily Bruntsch 7/10 745 days 24.41 24%
Slawomir Pegiel 10/10 745 days 24.41 24%
Luiz Noldin 9/10 745 days 24.41 24%
Dana Cranstone 10/10 746 days 24.3 24%
Claudia Schaefer 9/10 760 days true 27.34 27%
Adam Pullinger 9/10 763 days true 26.96 27%
Kees Mol 7/10 777 days true 25.23 25%
Howard Hoshide 9/10 806 days 18.23 18%
Danielle Sandahl 10/10 806 days 18.23 18%
Diego Casanova 8/10 817 days true 20.7 20%
Colin Wuerthele 10/10 837 days 15.55 15%
Ronel Coetzer 9/10 867 days 13.24 13%
Marine Audoire 10/10 1019 days true 7.1 7%
Adda Guðrún 1/10 1020 days 5.01 4%
Stacy Johnson 4/10 1020 days 5.48 5%
Hedwig Faust 9/10 1020 days 5.89 5%
Leisha Saxena 7/10 1027 days true 6.88 6%
Mathilde 8/10 1033 days true 6.73 6%
Helene Christensen 8/10 1035 days true 6.68 6%
Marka Okrutny 10/10 1036 days true 6.66 6%
Mette Elholm 9/10 1038 days true 6.62 6%
Olivier Anciaux 9/10 1045 days true 6.48 6%
Stephen Ophelder 9/10 1052 days true 6.35 6%
Lauren Goebel 8/10 1052 days true 6.35 6%
Helena Bond 8/10 1057 days true 6.27 6%
Michaela Bartotini 6/10 1067 days true 6.15 6%
Laura Schafer 9/10 1070 days true 6.12 6%
Brianna Burd 8/10 1085 days true 6.02 5%
Joanna and Shaun 8/10 1092 days true 6.0 5%
Mikael Persson 5/10 1093 days true 6.0 5%
Niels Hoogendooen 9/10 1095 days true 6.0 5%
Alice Melker 8/10 1096 days true 6.0 5%
Therese and Matthias 7/10 1098 days true 6.0 5%
Pekka and Jonna 9/10 1102 days true 5.99 5%
Josephine 6/10 1107 days true 5.98 5%
Juliette Keyzer 9/10 1109 days true 5.98 5%
Melissa Thomas 9/10 1111 days 4.98 4%
Adrian Pyrke 8/10 1111 days 4.98 4%
Jason Simpson 10/10 1111 days 4.98 4%
Alejandro Hahn 9/10 1111 days 4.98 4%
Malin Meier 8/10 1135 days true 5.93 5%
Anna and Derck 7/10 1142 days true 5.92 5%
lucille ramchundra 8/10 1142 days 4.94 4%
Iris Gigacher 9/10 1171 days true 5.88 5%
Tommy Lynch 8/10 1233 days 4.81 4%
Benoit Lochin 9/10 1446 days 4.52 4%
Lucas Zegarek 9/10 1476 days 4.48 4%
Laurie 9/10 1476 days 4.48 4%
Alexis Leneveu 8/10 1484 days 4.47 4%
Jam Boggomann 9/10 1504 days true 5.33 5%
tim winders 9/10 1691 days 4.18 4%
Xan Northman 10/10 1691 days 4.18 4%
Katharina Jacobs 10/10 1722 days 4.14 4%
Nick Giangreco 3/10 1722 days 3.77 3%
Julia Schabenberger 8/10 1751 days true 4.92 4%
Alisa 8/10 1751 days true 4.92 4%
Marie Toulemonde 9/10 1762 days true 4.9 4%
Laura 7/10 1777 days true 4.88 4%
Helene Andersen 9/10 1778 days true 4.88 4%
Stephen Revah 5/10 1780 days true 4.87 4%
d on amos 10/10 1783 days 4.06 3%
Gordon Thomas 8/10 1786 days true 4.86 4%
Sophie Ball 9/10 1811 days 4.02 3%
Alexis Redor 7/10 1814 days true 4.82 4%
Carina Borho 8/10 1817 days true 4.81 4%
Markus Spitzmueller 8/10 1818 days true 4.81 4%
Kristina 9/10 1826 days true 4.8 4%
Volker 9/10 1826 days true 4.8 4%
Laura Pleumeekers 6/10 1828 days true 4.8 4%
Steve Sparkes 9/10 1842 days 3.98 3%
Deborah Chan 9/10 1842 days 3.98 3%
Matt Cook 9/10 1873 days 3.93 3%
philip recordon 8/10 1903 days 3.89 3%
Leon 10/10 1934 days 3.85 3%
laura porta 10/10 1964 days 3.81 3%
NIE SHENGXIAN 9/10 1964 days 3.81 3%
gannon murphy 9/10 2056 days 3.68 3%
tiny ruins 10/10 2087 days 3.64 3%
Don Bennett 10/10 2117 days 3.6 3%
Stientje van den Heuvel 7/10 2134 days true 4.29 4%
Tom Somers 7/10 2134 days true 4.29 4%
Verena 8/10 2139 days true 4.28 4%
Anja S 9/10 2139 days true 4.28 4%
Camille Coombes 8/10 2141 days true 4.28 4%
Mathieu Maran 8/10 2141 days true 4.28 4%
Evelina Johansson 9/10 2147 days true 4.27 4%
Sofia Anderson 9/10 2147 days true 4.27 4%
Raelene Vine 7/10 2148 days 3.56 3%
Rogier Ramaker 8/10 2153 days true 4.26 4%
Tim Sautter 4/10 2161 days true 4.0 3%
Dee 10/10 2176 days 3.52 3%
Dwharks 8/10 2176 days 3.52 3%
marypy 6/10 2176 days 3.52 3%
Inge 9/10 2176 days 3.52 3%
David Stannard 10/10 2207 days 3.48 3%
Daniel Bulach 9/10 2207 days 3.48 3%
Martyn Kool 8/10 2224 days true 4.14 4%
Marieke 7/10 2224 days true 4.14 4%
colmon 10/10 2238 days 3.43 3%
Thibault Bonenfant 8/10 2244 days true 4.11 4%
Thys 7/10 2250 days true 4.1 3%
John Freeman 5/10 2254 days true 4.09 3%
Ton Franke 8/10 2254 days true 4.09 3%
Michel Vourbraak 8/10 2254 days true 4.09 3%
foxmccleod 10/10 2268 days 3.39 3%
vvarrasso 5/10 2299 days 3.35 3%
Pauline_Quentin 10/10 2360 days 3.27 3%
jeremyliang 10/10 2391 days 3.22 3%
Syarifah 10/10 2421 days 3.18 3%
Aggie 10/10 2482 days 3.1 2%
nej91 9/10 2482 days 3.1 2%
Markus Frei 8/10 2499 days true 3.69 3%
Be Groen 6/10 2505 days true 3.68 3%
mpbiller 8/10 2513 days 3.06 2%
Keith Helen 10/10 2513 days true 3.67 3%
Madeleine Mueller 8/10 2518 days true 3.66 3%
Daniel & Manuela 8/10 2519 days true 3.66 3%
Romla 7/10 2520 days true 3.66 3%
Ronald Veldman 7/10 2520 days true 3.66 3%
Kasten Madsen 6/10 2522 days true 3.65 3%
Ryan Pynappels 7/10 2524 days true 3.65 3%
Melanie 7/10 2525 days true 3.65 3%
Ivouue & Alex 9/10 2525 days true 3.65 3%
Houter 8/10 2527 days true 3.65 3%
Mary Mitchell 8/10 2527 days true 3.65 3%
Manuela Weber 4/10 2527 days true 3.43 3%
Kimberley Mills 8/10 2529 days true 3.64 3%
Jurg Pfaendler 7/10 2530 days true 3.64 3%
Kim Thorsted 7/10 2536 days true 3.63 3%
Claudia & Julian 7/10 2540 days true 3.62 3%
Lotte Foged 8/10 2540 days true 3.62 3%
Frank & Julia 8/10 2541 days true 3.62 3%
JulesR 7/10 2542 days 3.02 2%
digbe 8/10 2542 days 3.02 2%
Marie Frank 10/10 2542 days true 3.62 3%
Francis Corrigan 6/10 2543 days true 3.62 3%
Sanne Ta Stroete 7/10 2593 days true 3.54 3%
Sashia 8/10 2594 days true 3.54 3%
Mark & Beth Kaufman 7/10 2608 days true 3.51 3%
Chris Muller 9/10 2608 days true 3.51 3%
Sarah and Soren 6/10 2610 days true 3.51 3%
Jan & Marian 6/10 2616 days true 3.5 3%
David & Mary-Jane Ryder 8/10 2616 days true 3.5 3%
Michael Muhlwitz 8/10 2619 days true 3.49 3%
BertvdK 2/10 2634 days 2.54 2%
hayleyemery 10/10 2757 days 2.72 2%
nwhitehead1 10/10 2757 days 2.72 2%
joeandem 10/10 2787 days 2.68 2%
Karen 9/10 2818 days 2.64 2%
Stefan Elsenbruch 7/10 2852 days true 3.11 2%
Thierry Meylan 8/10 2855 days true 3.11 2%
Maureen Hardy 3/10 2856 days true 2.87 2%
Sophie Burge 8/10 2856 days true 3.11 2%
Danielle 8/10 2857 days true 3.1 2%
Ilse & Thys 8/10 2862 days true 3.1 2%
Frank & Ruth 8/10 2863 days true 3.09 2%
Ed Ronan 6/10 2864 days true 3.09 2%
Thorsten Grocholl 8/10 2866 days true 3.09 2%
joke 6/10 2866 days true 3.09 2%
alcatrazz 3/10 2868 days true 2.85 2%
Monique 8/10 2871 days true 3.08 2%
Jonathan Cree 7/10 2872 days true 3.08 2%
Aln 6/10 2873 days true 3.08 2%
Dave Allen 5/10 2876 days true 3.07 2%
Victor Lewis 9/10 2876 days true 3.07 2%
Roman & Esther 7/10 2876 days true 3.07 2%
Ann-Katrine & Sille 8/10 2877 days true 3.07 2%
Alan Munday 8/10 2877 days true 3.07 2%
J van de Vlekkert 9/10 2882 days true 3.06 2%
Kurmann/Kayser 8/10 2885 days true 3.06 2%
H Hensen 8/10 2893 days true 3.04 2%
Laura Hayes 10/10 2894 days true 3.04 2%
Brian Lind 8/10 2894 days true 3.04 2%
Angela 7/10 2895 days true 3.04 2%
Marianne Astorp 5/10 2898 days true 3.04 2%
Igor Filart 8/10 2902 days true 3.03 2%
Claire Bulmer 8/10 2902 days true 3.03 2%
Jan Holger Weib 8/10 2903 days true 3.03 2%
dodo81 9/10 2907 days 2.52 2%
Michellemarie 10/10 3060 days 2.31 2%
rinusm 8/10 3180 days true 2.57 2%
Kavita 9/10 3183 days 2.14 2%
Polil 7/10 3230 days true 2.49 2%
Andy 10/10 3234 days true 2.48 2%
Hershell 5/10 3236 days true 2.48 2%
Peter Schmidt 5/10 3244 days 2.06 1%
Schlaepfer 8/10 3246 days true 2.46 2%
jongejan 6/10 3250 days true 2.46 2%
Jannievan Osnabrugge 4/10 3254 days true 2.31 2%
th schuermann 5/10 3254 days true 2.45 2%
Malcolm Glad 8/10 3257 days true 2.45 2%
Ronny 9/10 3258 days true 2.44 2%
Lasse Olesen 8/10 3265 days true 2.43 2%
Monica and Danie. 8/10 3266 days true 2.43 2%
Annette Schmitt 9/10 3266 days true 2.43 2%
Nadine Schaee 8/10 3269 days true 2.43 2%
uleugel 4/10 3281 days true 2.27 2%
Beute Jacob 7/10 3285 days true 2.4 2%
Peter Tres 8/10 3287 days true 2.4 2%
EA Anders 4/10 3289 days true 2.25 2%
Astrio Gregersen 8/10 3301 days true 2.37 2%
mariekef 9/10 3318 days true 2.35 2%
bertramf 10/10 3319 days true 2.34 2%
martint 8/10 3327 days true 2.33 2%
katepat 8/10 3334 days true 2.32 2%
Anita de Boer 7/10 3336 days true 2.32 2%
Ulyate 6/10 3345 days true 2.3 2%
Jeanette Larsen 7/10 3346 days true 2.3 2%
Sara Reekmans 9/10 3357 days true 2.28 2%
Emily and Alex 9/10 3361 days true 2.28 2%
Emear Donnelly 7/10 3499 days true 2.05 1%
ralphl 8/10 3533 days true 1.99 1%
RolandV 9/10 3562 days true 1.94 1%
suet 7/10 3578 days true 1.92 1%
desl 7/10 3578 days true 1.92 1%
Sally477 9/10 3579 days 1.6 1%
Marc_N 8/10 3579 days true 1.92 1%
StefanieA 3/10 3580 days true 1.77 1%
Jelle 7/10 3581 days true 1.91 1%
Dave Ashun 7/10 3585 days true 1.91 1%
Thomas1646 8/10 3585 days true 1.91 1%
Lars 9/10 3594 days true 1.89 1%
SteveW 9/10 3597 days true 1.89 1%
TobiasK 8/10 3597 days true 1.89 1%
Rob 8/10 3601 days true 1.88 1%
Keith 7/10 3602 days true 1.88 1%
Steve 9/10 3612 days true 1.86 1%
Heather 7/10 3614 days true 1.86 1%
Jason 3/10 3617 days true 1.72 1%
Nikolaj 9/10 3628 days true 1.84 1%
MattEngland 9/10 3633 days true 1.83 1%
CharlotteC 9/10 3633 days true 1.83 1%
SuenSwitzerland 9/10 3637 days true 1.82 1%
Sheridan Hancock 10/10 3637 days 1.52 1%
Henk 8/10 3642 days true 1.81 1%
Maxim 9/10 3644 days true 1.81 1%
Rachel 8/10 3644 days true 1.81 1%
Anna 7/10 3645 days true 1.81 1%
Thomas 10/10 3646 days true 1.81 1%
John 9/10 3647 days true 1.8 1%
Miranda 9/10 3654 days true 1.79 1%
hanna_and_matt 10/10 3677 days 1.46 1%
Jason 7/10 3682 days true 1.75 1%
Erin 10/10 3729 days 1.39 1%
fiona bergin 10/10 3742 days 1.37 1%
Anthony 8/10 3958 days true 1.29 1%
Elizabeth Woodruff 9/10 3958 days true 1.29 1%
Miranda 8/10 3979 days true 1.26 1%
Pete 8/10 4067 days true 1.11 0%
ranker_34 8/10 4180 days true 0.93 0%
Jessica Callen 8/10 4303 days true 0.73 0%
Beth 8/10 4305 days true 0.72 0%
Fran 8/10 4308 days true 0.72 0%
John 9/10 4311 days true 0.71 0%
Jane 8/10 4311 days true 0.71 0%
Chris 7/10 4315 days true 0.71 0%
Jacob Mille 8/10 4322 days true 0.7 0%
Yasmin Michael 9/10 4344 days true 0.66 0%
Suzy 7/10 4348 days true 0.65 0%
Janne 8/10 4348 days true 0.65 0%
Andy 7/10 4350 days true 0.65 0%
Sandra 6/10 4350 days true 0.65 0%
Colin 7/10 4352 days true 0.65 0%
Gillian 8/10 4355 days true 0.64 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 Spaceships experience has plenty of reviews and does not meet the criteria for any adjustment.

Recent Reviews Adjustment

-0.16% Adjustment

There may be an adjustment if an experience hasn't received any reviews within the last 60 days. However the Spaceships 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 364 days.

The Spaceships experience has been adjusted for 8 days. Adjustments are according to the following table.

Days Adjustment
5 -0.10%
6 -0.12%
7 -0.14%
8 -0.16%
9 -0.18%
10 -0.20%
11 -0.22%

Final Ranking Score

80%

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.