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

311 Valid Reviews

The Spaceships experience has a total of 321 reviews. There are 311 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 311 valid reviews:

Rating Count Percentage
10/10 45
14%
9/10 81
26%
8/10 93
30%
7/10 47
15%
6/10 16
5%
5/10 10
3%
4/10 8
3%
3/10 7
2%
2/10 1
0%
1/10 3
1%

78.97% Average

The raw data average (mean) for all the Spaceships valid reviews is 78.97% and is based on 311 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 311 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

77.68%

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
Michaela 9/10 49 days 99.62 100%
Allison 1/10 49 days 84.68 85%
Rike Pilz 3/10 49 days 90.65 91%
Keisha Quinn 10/10 111 days 98.05 98%
Laurent AUBERTIN 8/10 111 days 98.05 98%
Esmee 10/10 111 days 98.05 98%
Laura Mayer, Tobias Dürr 4/10 111 days 91.18 91%
Nitasha Rehman 7/10 141 days 96.85 97%
Celeste Schwarz 7/10 141 days 96.85 97%
Jaclyn Mills 9/10 141 days 96.85 97%
Hayley Pickering 9/10 141 days 96.85 97%
Imrich Kiss 9/10 141 days 96.85 97%
borha mohd zain 1/10 141 days 82.32 83%
aLVARO Gonzalez 10/10 172 days 95.31 96%
Suhui Hee 8/10 172 days 95.31 96%
David Coleman 9/10 172 days 95.31 96%
Susan Cook 9/10 325 days 83.26 83%
Mark Fitzpatrick 6/10 355 days 80.03 80%
Trina Ludwig 8/10 355 days 80.03 80%
Katherine Hugh 10/10 414 days 72.84 73%
Jacinta Norton 8/10 445 days 68.62 69%
Heather ryckman 4/10 445 days 63.82 64%
Merrit Savener 9/10 445 days 68.62 69%
Kah Yi Choong 8/10 445 days 68.62 69%
Alexandra Coffey 10/10 476 days 64.1 64%
Matiu Iraia 9/10 476 days 64.1 64%
Laura Elliott 10/10 506 days 59.43 59%
Clint Bradley 5/10 506 days 59.43 59%
Felix Haget 9/10 506 days 59.43 59%
sue Winterton 8/10 506 days 59.43 59%
S H 3/10 537 days 49.42 49%
Olli Jarva 7/10 537 days 54.3 54%
Set Lee Chong 9/10 598 days 44.14 44%
MING HUI FONG 8/10 659 days 35.12 35%
Julie Costa 9/10 690 days 30.99 31%
Medro Brodeur 9/10 690 days 30.99 31%
Ylva Teleman 10/10 746 days true 29.16 29%
roger loyer 8/10 751 days 23.75 23%
David Henry 8/10 751 days 23.75 23%
Kilian Frank 9/10 751 days 23.75 23%
Trine and Malin 9/10 753 days true 28.24 28%
Katey Bell 7/10 756 days true 27.85 28%
Natasha Startup 10/10 762 days true 27.09 27%
Ron Hawkins 10/10 779 days 20.82 20%
Ana Masu 9/10 779 days 20.82 20%
Heather Balch 9/10 779 days 20.82 20%
Linda Livett 9/10 779 days 20.82 20%
Lily Bruntsch 7/10 810 days 17.87 17%
Slawomir Pegiel 10/10 810 days 17.87 17%
Luiz Noldin 9/10 810 days 17.87 17%
Dana Cranstone 10/10 810 days 17.87 17%
Claudia Schaefer 9/10 824 days true 19.97 20%
Adam Pullinger 9/10 827 days true 19.66 19%
Kees Mol 7/10 841 days true 18.27 18%
Howard Hoshide 9/10 871 days 12.95 13%
Danielle Sandahl 10/10 871 days 12.95 13%
Diego Casanova 8/10 881 days true 14.71 14%
Colin Wuerthele 10/10 902 days 10.9 10%
Ronel Coetzer 9/10 932 days 9.21 9%
Marine Audoire 10/10 1083 days true 6.03 6%
Adda Guðrún 1/10 1085 days 4.26 4%
Stacy Johnson 4/10 1085 days 4.66 4%
Hedwig Faust 9/10 1085 days 5.02 5%
Leisha Saxena 7/10 1091 days true 6.0 6%
Mathilde 8/10 1097 days true 6.0 6%
Helene Christensen 8/10 1099 days true 5.99 6%
Marka Okrutny 10/10 1100 days true 5.99 6%
Mette Elholm 9/10 1102 days true 5.99 6%
Olivier Anciaux 9/10 1109 days true 5.98 5%
Stephen Ophelder 9/10 1116 days true 5.97 5%
Lauren Goebel 8/10 1116 days true 5.97 5%
Helena Bond 8/10 1121 days true 5.96 5%
Michaela Bartotini 6/10 1131 days true 5.94 5%
Laura Schafer 9/10 1134 days true 5.94 5%
Brianna Burd 8/10 1149 days true 5.91 5%
Joanna and Shaun 8/10 1156 days true 5.9 5%
Mikael Persson 5/10 1157 days true 5.9 5%
Niels Hoogendooen 9/10 1159 days true 5.89 5%
Alice Melker 8/10 1160 days true 5.89 5%
Therese and Matthias 7/10 1162 days true 5.89 5%
Pekka and Jonna 9/10 1166 days true 5.88 5%
Josephine 6/10 1171 days true 5.88 5%
Juliette Keyzer 9/10 1173 days true 5.87 5%
Melissa Thomas 9/10 1176 days 4.89 4%
Adrian Pyrke 8/10 1176 days 4.89 4%
Jason Simpson 10/10 1176 days 4.89 4%
Alejandro Hahn 9/10 1176 days 4.89 4%
Malin Meier 8/10 1199 days true 5.83 5%
Anna and Derck 7/10 1206 days true 5.82 5%
lucille ramchundra 8/10 1207 days 4.85 4%
Iris Gigacher 9/10 1235 days true 5.77 5%
Tommy Lynch 8/10 1298 days 4.72 4%
Benoit Lochin 9/10 1510 days 4.43 4%
Lucas Zegarek 9/10 1541 days 4.39 4%
Laurie 9/10 1541 days 4.39 4%
Alexis Leneveu 8/10 1548 days 4.38 4%
Jam Boggomann 9/10 1568 days true 5.22 5%
tim winders 9/10 1755 days 4.1 4%
Xan Northman 10/10 1755 days 4.1 4%
Katharina Jacobs 10/10 1786 days 4.05 4%
Nick Giangreco 3/10 1786 days 3.69 3%
Julia Schabenberger 8/10 1815 days true 4.82 4%
Alisa 8/10 1815 days true 4.82 4%
Marie Toulemonde 9/10 1826 days true 4.8 4%
Laura 7/10 1841 days true 4.77 4%
Helene Andersen 9/10 1842 days true 4.77 4%
Stephen Revah 5/10 1844 days true 4.77 4%
d on amos 10/10 1847 days 3.97 3%
Gordon Thomas 8/10 1850 days true 4.76 4%
Sophie Ball 9/10 1875 days 3.93 3%
Alexis Redor 7/10 1878 days true 4.71 4%
Carina Borho 8/10 1881 days true 4.71 4%
Markus Spitzmueller 8/10 1882 days true 4.71 4%
Kristina 9/10 1890 days true 4.69 4%
Volker 9/10 1890 days true 4.69 4%
Laura Pleumeekers 6/10 1892 days true 4.69 4%
Steve Sparkes 9/10 1906 days 3.89 3%
Deborah Chan 9/10 1906 days 3.89 3%
Matt Cook 9/10 1937 days 3.85 3%
philip recordon 8/10 1967 days 3.81 3%
Leon 10/10 1998 days 3.76 3%
laura porta 10/10 2028 days 3.72 3%
NIE SHENGXIAN 9/10 2028 days 3.72 3%
gannon murphy 9/10 2120 days 3.6 3%
tiny ruins 10/10 2151 days 3.55 3%
Don Bennett 10/10 2181 days 3.51 3%
Stientje van den Heuvel 7/10 2198 days true 4.19 4%
Tom Somers 7/10 2198 days true 4.19 4%
Verena 8/10 2203 days true 4.18 4%
Anja S 9/10 2203 days true 4.18 4%
Camille Coombes 8/10 2205 days true 4.18 4%
Mathieu Maran 8/10 2205 days true 4.18 4%
Evelina Johansson 9/10 2211 days true 4.17 4%
Sofia Anderson 9/10 2211 days true 4.17 4%
Raelene Vine 7/10 2212 days 3.47 3%
Rogier Ramaker 8/10 2217 days true 4.16 4%
Tim Sautter 4/10 2225 days true 3.9 3%
Dee 10/10 2240 days 3.43 3%
Dwharks 8/10 2240 days 3.43 3%
marypy 6/10 2240 days 3.43 3%
Inge 9/10 2240 days 3.43 3%
David Stannard 10/10 2271 days 3.39 3%
Daniel Bulach 9/10 2271 days 3.39 3%
Martyn Kool 8/10 2288 days true 4.04 4%
Marieke 7/10 2288 days true 4.04 4%
colmon 10/10 2302 days 3.35 3%
Thibault Bonenfant 8/10 2308 days true 4.01 4%
Thys 7/10 2314 days true 4.0 3%
John Freeman 5/10 2318 days true 3.99 3%
Ton Franke 8/10 2318 days true 3.99 3%
Michel Vourbraak 8/10 2318 days true 3.99 3%
foxmccleod 10/10 2332 days 3.31 3%
vvarrasso 5/10 2363 days 3.26 3%
Pauline_Quentin 10/10 2424 days 3.18 3%
jeremyliang 10/10 2455 days 3.14 3%
Syarifah 10/10 2485 days 3.1 3%
Aggie 10/10 2546 days 3.01 2%
nej91 9/10 2546 days 3.01 2%
Markus Frei 8/10 2563 days true 3.59 3%
Be Groen 6/10 2569 days true 3.58 3%
mpbiller 8/10 2577 days 2.97 2%
Keith Helen 10/10 2577 days true 3.56 3%
Madeleine Mueller 8/10 2582 days true 3.56 3%
Daniel & Manuela 8/10 2583 days true 3.55 3%
Romla 7/10 2584 days true 3.55 3%
Ronald Veldman 7/10 2584 days true 3.55 3%
Kasten Madsen 6/10 2586 days true 3.55 3%
Ryan Pynappels 7/10 2588 days true 3.55 3%
Melanie 7/10 2589 days true 3.54 3%
Ivouue & Alex 9/10 2589 days true 3.54 3%
Houter 8/10 2591 days true 3.54 3%
Mary Mitchell 8/10 2591 days true 3.54 3%
Manuela Weber 4/10 2591 days true 3.33 3%
Kimberley Mills 8/10 2593 days true 3.54 3%
Jurg Pfaendler 7/10 2594 days true 3.54 3%
Kim Thorsted 7/10 2600 days true 3.53 3%
Claudia & Julian 7/10 2604 days true 3.52 3%
Lotte Foged 8/10 2604 days true 3.52 3%
Frank & Julia 8/10 2605 days true 3.52 3%
JulesR 7/10 2606 days 2.93 2%
digbe 8/10 2606 days 2.93 2%
Marie Frank 10/10 2606 days true 3.52 3%
Francis Corrigan 6/10 2607 days true 3.51 3%
Sanne Ta Stroete 7/10 2657 days true 3.43 3%
Sashia 8/10 2658 days true 3.43 3%
Mark & Beth Kaufman 7/10 2672 days true 3.41 3%
Chris Muller 9/10 2672 days true 3.41 3%
Sarah and Soren 6/10 2674 days true 3.4 3%
Jan & Marian 6/10 2680 days true 3.39 3%
David & Mary-Jane Ryder 8/10 2680 days true 3.39 3%
Michael Muhlwitz 8/10 2683 days true 3.39 3%
BertvdK 2/10 2698 days 2.47 2%
hayleyemery 10/10 2821 days 2.64 2%
nwhitehead1 10/10 2821 days 2.64 2%
joeandem 10/10 2851 days 2.59 2%
Karen 9/10 2882 days 2.55 2%
Stefan Elsenbruch 7/10 2916 days true 3.01 2%
Thierry Meylan 8/10 2919 days true 3.0 2%
Maureen Hardy 3/10 2920 days true 2.78 2%
Sophie Burge 8/10 2920 days true 3.0 2%
Danielle 8/10 2921 days true 3.0 2%
Ilse & Thys 8/10 2926 days true 2.99 2%
Frank & Ruth 8/10 2927 days true 2.99 2%
Ed Ronan 6/10 2928 days true 2.99 2%
Thorsten Grocholl 8/10 2930 days true 2.98 2%
joke 6/10 2930 days true 2.98 2%
alcatrazz 3/10 2932 days true 2.76 2%
Monique 8/10 2935 days true 2.98 2%
Jonathan Cree 7/10 2936 days true 2.97 2%
Aln 6/10 2937 days true 2.97 2%
Dave Allen 5/10 2940 days true 2.97 2%
Victor Lewis 9/10 2940 days true 2.97 2%
Roman & Esther 7/10 2940 days true 2.97 2%
Ann-Katrine & Sille 8/10 2941 days true 2.97 2%
Alan Munday 8/10 2941 days true 2.97 2%
J van de Vlekkert 9/10 2946 days true 2.96 2%
Kurmann/Kayser 8/10 2949 days true 2.95 2%
H Hensen 8/10 2957 days true 2.94 2%
Laura Hayes 10/10 2958 days true 2.94 2%
Brian Lind 8/10 2958 days true 2.94 2%
Angela 7/10 2959 days true 2.94 2%
Marianne Astorp 5/10 2962 days true 2.93 2%
Igor Filart 8/10 2966 days true 2.92 2%
Claire Bulmer 8/10 2966 days true 2.92 2%
Jan Holger Weib 8/10 2967 days true 2.92 2%
dodo81 9/10 2971 days 2.43 2%
Michellemarie 10/10 3124 days 2.22 2%
rinusm 8/10 3244 days true 2.47 2%
Kavita 9/10 3247 days 2.05 2%
Polil 7/10 3294 days true 2.39 2%
Andy 10/10 3298 days true 2.38 2%
Hershell 5/10 3300 days true 2.38 2%
Peter Schmidt 5/10 3308 days 1.97 1%
Schlaepfer 8/10 3310 days true 2.36 2%
jongejan 6/10 3314 days true 2.35 2%
Jannievan Osnabrugge 4/10 3318 days true 2.21 2%
th schuermann 5/10 3318 days true 2.35 2%
Malcolm Glad 8/10 3321 days true 2.34 2%
Ronny 9/10 3322 days true 2.34 2%
Lasse Olesen 8/10 3329 days true 2.33 2%
Monica and Danie. 8/10 3330 days true 2.33 2%
Annette Schmitt 9/10 3330 days true 2.33 2%
Nadine Schaee 8/10 3333 days true 2.32 2%
uleugel 4/10 3345 days true 2.17 2%
Beute Jacob 7/10 3349 days true 2.29 2%
Peter Tres 8/10 3351 days true 2.29 2%
EA Anders 4/10 3353 days true 2.15 2%
Astrio Gregersen 8/10 3365 days true 2.27 2%
mariekef 9/10 3382 days true 2.24 2%
bertramf 10/10 3383 days true 2.24 2%
martint 8/10 3391 days true 2.23 2%
katepat 8/10 3398 days true 2.21 2%
Anita de Boer 7/10 3400 days true 2.21 2%
Ulyate 6/10 3409 days true 2.2 2%
Jeanette Larsen 7/10 3410 days true 2.19 2%
Sara Reekmans 9/10 3421 days true 2.18 2%
Emily and Alex 9/10 3425 days true 2.17 2%
Emear Donnelly 7/10 3563 days true 1.94 1%
ralphl 8/10 3597 days true 1.89 1%
RolandV 9/10 3626 days true 1.84 1%
suet 7/10 3642 days true 1.81 1%
desl 7/10 3642 days true 1.81 1%
Sally477 9/10 3643 days 1.51 1%
Marc_N 8/10 3643 days true 1.81 1%
StefanieA 3/10 3644 days true 1.67 1%
Jelle 7/10 3645 days true 1.81 1%
Dave Ashun 7/10 3649 days true 1.8 1%
Thomas1646 8/10 3649 days true 1.8 1%
Lars 9/10 3658 days true 1.79 1%
SteveW 9/10 3661 days true 1.78 1%
TobiasK 8/10 3661 days true 1.78 1%
Rob 8/10 3666 days true 1.77 1%
Keith 7/10 3666 days true 1.77 1%
Steve 9/10 3676 days true 1.76 1%
Heather 7/10 3679 days true 1.75 1%
Jason 3/10 3681 days true 1.62 1%
Nikolaj 9/10 3693 days true 1.73 1%
MattEngland 9/10 3697 days true 1.72 1%
CharlotteC 9/10 3697 days true 1.72 1%
SuenSwitzerland 9/10 3701 days true 1.72 1%
Sheridan Hancock 10/10 3701 days 1.43 1%
Henk 8/10 3707 days true 1.71 1%
Maxim 9/10 3708 days true 1.7 1%
Rachel 8/10 3708 days true 1.7 1%
Anna 7/10 3709 days true 1.7 1%
Thomas 10/10 3710 days true 1.7 1%
John 9/10 3711 days true 1.7 1%
Miranda 9/10 3719 days true 1.69 1%
hanna_and_matt 10/10 3741 days 1.38 1%
Jason 7/10 3746 days true 1.64 1%
Erin 10/10 3793 days 1.3 1%
fiona bergin 10/10 3806 days 1.29 1%
Anthony 8/10 4022 days true 1.19 1%
Elizabeth Woodruff 9/10 4022 days true 1.19 1%
Miranda 8/10 4043 days true 1.15 1%
Pete 8/10 4131 days true 1.01 0%
ranker_34 8/10 4244 days true 0.82 0%
Jessica Callen 8/10 4367 days true 0.62 0%
Beth 8/10 4369 days true 0.62 0%
Fran 8/10 4372 days true 0.61 0%
John 9/10 4375 days true 0.61 0%
Jane 8/10 4375 days true 0.61 0%
Chris 7/10 4379 days true 0.6 0%
Jacob Mille 8/10 4386 days true 0.59 0%
Yasmin Michael 9/10 4408 days true 0.55 0%
Suzy 7/10 4412 days true 0.55 0%
Janne 8/10 4412 days true 0.55 0%
Andy 7/10 4414 days true 0.54 0%
Sandra 6/10 4414 days true 0.54 0%
Colin 7/10 4416 days true 0.54 0%
Gillian 8/10 4419 days true 0.54 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

-1.84% 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 Spaceships experience has 3 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 364 days.

The Spaceships experience has been adjusted for 17 days. Adjustments are according to the following table.

Days Adjustment
14 -0.28%
15 -0.30%
16 -0.32%
17 -0.34%
18 -0.36%
19 -0.38%
20 -0.40%

Final Ranking Score

76%

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.

Love Christchurch