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

315 Valid Reviews

The Spaceships experience has a total of 325 reviews. There are 315 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 315 valid reviews:

Rating Count Percentage
10/10 46
15%
9/10 82
26%
8/10 93
30%
7/10 47
15%
6/10 16
5%
5/10 10
3%
4/10 8
3%
3/10 8
3%
2/10 1
0%
1/10 4
1%

78.70% Average

The raw data average (mean) for all the Spaceships valid reviews is 78.70% and is based on 315 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 315 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

75.64%

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
Charlie Baggallay 10/10 54 days 99.54 100%
Fred Conyers 9/10 54 days 99.54 100%
Joze Peres 3/10 54 days 90.58 91%
Michaela 9/10 113 days 97.98 98%
Allison 1/10 113 days 83.28 84%
Rike Pilz 3/10 113 days 89.16 90%
Alice 1/10 113 days 83.28 84%
Keisha Quinn 10/10 175 days 95.15 96%
Laurent AUBERTIN 8/10 175 days 95.15 96%
Esmee 10/10 175 days 95.15 96%
Laura Mayer, Tobias Dürr 4/10 175 days 88.49 89%
Nitasha Rehman 7/10 205 days 93.34 94%
Celeste Schwarz 7/10 205 days 93.34 94%
Jaclyn Mills 9/10 205 days 93.34 94%
Hayley Pickering 9/10 205 days 93.34 94%
Imrich Kiss 9/10 205 days 93.34 94%
borha mohd zain 1/10 205 days 79.34 80%
aLVARO Gonzalez 10/10 236 days 91.17 92%
Suhui Hee 8/10 236 days 91.17 92%
David Coleman 9/10 236 days 91.17 92%
Susan Cook 9/10 389 days 76.02 76%
Mark Fitzpatrick 6/10 419 days 72.18 72%
Trina Ludwig 8/10 419 days 72.18 72%
Katherine Hugh 10/10 478 days 63.79 64%
Jacinta Norton 8/10 509 days 58.95 59%
Heather ryckman 4/10 509 days 54.82 55%
Merrit Savener 9/10 509 days 58.95 59%
Kah Yi Choong 8/10 509 days 58.95 59%
Alexandra Coffey 10/10 540 days 53.79 54%
Matiu Iraia 9/10 540 days 53.79 54%
Laura Elliott 10/10 570 days 48.68 49%
Clint Bradley 5/10 570 days 48.68 49%
Felix Haget 9/10 570 days 48.68 49%
sue Winterton 8/10 570 days 48.68 49%
S H 3/10 601 days 39.74 40%
Olli Jarva 7/10 601 days 43.67 44%
Set Lee Chong 9/10 662 days 34.71 35%
MING HUI FONG 8/10 723 days 26.93 27%
Julie Costa 9/10 754 days 23.43 23%
Medro Brodeur 9/10 754 days 23.43 23%
Ylva Teleman 10/10 810 days true 21.45 21%
roger loyer 8/10 815 days 17.42 17%
David Henry 8/10 815 days 17.42 17%
Kilian Frank 9/10 815 days 17.42 17%
Trine and Malin 9/10 817 days true 20.7 20%
Katey Bell 7/10 820 days true 20.38 20%
Natasha Startup 10/10 826 days true 19.76 20%
Ron Hawkins 10/10 843 days 15.06 15%
Ana Masu 9/10 843 days 15.06 15%
Heather Balch 9/10 843 days 15.06 15%
Linda Livett 9/10 843 days 15.06 15%
Lily Bruntsch 7/10 874 days 12.74 12%
Slawomir Pegiel 10/10 874 days 12.74 12%
Luiz Noldin 9/10 874 days 12.74 12%
Dana Cranstone 10/10 874 days 12.74 12%
Claudia Schaefer 9/10 888 days true 14.15 14%
Adam Pullinger 9/10 891 days true 13.91 14%
Kees Mol 7/10 905 days true 12.86 13%
Howard Hoshide 9/10 935 days 9.06 9%
Danielle Sandahl 10/10 935 days 9.06 9%
Diego Casanova 8/10 945 days true 10.28 10%
Colin Wuerthele 10/10 966 days 7.64 7%
Ronel Coetzer 9/10 996 days 6.55 6%
Marine Audoire 10/10 1147 days true 5.91 6%
Adda Guðrún 1/10 1149 days 4.19 4%
Stacy Johnson 4/10 1149 days 4.58 4%
Hedwig Faust 9/10 1149 days 4.93 5%
Leisha Saxena 7/10 1155 days true 5.9 6%
Mathilde 8/10 1161 days true 5.89 6%
Helene Christensen 8/10 1163 days true 5.89 6%
Marka Okrutny 10/10 1164 days true 5.89 6%
Mette Elholm 9/10 1166 days true 5.88 6%
Olivier Anciaux 9/10 1173 days true 5.87 5%
Stephen Ophelder 9/10 1180 days true 5.86 5%
Lauren Goebel 8/10 1180 days true 5.86 5%
Helena Bond 8/10 1185 days true 5.85 5%
Michaela Bartotini 6/10 1195 days true 5.84 5%
Laura Schafer 9/10 1198 days true 5.83 5%
Brianna Burd 8/10 1213 days true 5.81 5%
Joanna and Shaun 8/10 1220 days true 5.79 5%
Mikael Persson 5/10 1221 days true 5.79 5%
Niels Hoogendooen 9/10 1223 days true 5.79 5%
Alice Melker 8/10 1224 days true 5.79 5%
Therese and Matthias 7/10 1226 days true 5.78 5%
Pekka and Jonna 9/10 1230 days true 5.78 5%
Josephine 6/10 1235 days true 5.77 5%
Juliette Keyzer 9/10 1237 days true 5.77 5%
Melissa Thomas 9/10 1240 days 4.8 4%
Adrian Pyrke 8/10 1240 days 4.8 4%
Jason Simpson 10/10 1240 days 4.8 4%
Alejandro Hahn 9/10 1240 days 4.8 4%
Malin Meier 8/10 1263 days true 5.72 5%
Anna and Derck 7/10 1270 days true 5.71 5%
lucille ramchundra 8/10 1271 days 4.76 4%
Iris Gigacher 9/10 1299 days true 5.66 5%
Tommy Lynch 8/10 1362 days 4.63 4%
Benoit Lochin 9/10 1574 days 4.34 4%
Lucas Zegarek 9/10 1605 days 4.3 4%
Laurie 9/10 1605 days 4.3 4%
Alexis Leneveu 8/10 1612 days 4.29 4%
Jam Boggomann 9/10 1632 days true 5.12 5%
tim winders 9/10 1819 days 4.01 4%
Xan Northman 10/10 1819 days 4.01 4%
Katharina Jacobs 10/10 1850 days 3.97 4%
Nick Giangreco 3/10 1850 days 3.61 3%
Julia Schabenberger 8/10 1879 days true 4.71 4%
Alisa 8/10 1879 days true 4.71 4%
Marie Toulemonde 9/10 1890 days true 4.69 4%
Laura 7/10 1905 days true 4.67 4%
Helene Andersen 9/10 1906 days true 4.67 4%
Stephen Revah 5/10 1908 days true 4.66 4%
d on amos 10/10 1911 days 3.88 3%
Gordon Thomas 8/10 1914 days true 4.65 4%
Sophie Ball 9/10 1939 days 3.84 3%
Alexis Redor 7/10 1942 days true 4.61 4%
Carina Borho 8/10 1945 days true 4.6 4%
Markus Spitzmueller 8/10 1946 days true 4.6 4%
Kristina 9/10 1954 days true 4.59 4%
Volker 9/10 1954 days true 4.59 4%
Laura Pleumeekers 6/10 1956 days true 4.58 4%
Steve Sparkes 9/10 1970 days 3.8 3%
Deborah Chan 9/10 1970 days 3.8 3%
Matt Cook 9/10 2001 days 3.76 3%
philip recordon 8/10 2031 days 3.72 3%
Leon 10/10 2062 days 3.68 3%
laura porta 10/10 2092 days 3.63 3%
NIE SHENGXIAN 9/10 2092 days 3.63 3%
gannon murphy 9/10 2184 days 3.51 3%
tiny ruins 10/10 2215 days 3.47 3%
Don Bennett 10/10 2245 days 3.42 3%
Stientje van den Heuvel 7/10 2262 days true 4.08 4%
Tom Somers 7/10 2262 days true 4.08 4%
Verena 8/10 2267 days true 4.07 4%
Anja S 9/10 2267 days true 4.07 4%
Camille Coombes 8/10 2269 days true 4.07 4%
Mathieu Maran 8/10 2269 days true 4.07 4%
Evelina Johansson 9/10 2275 days true 4.06 4%
Sofia Anderson 9/10 2275 days true 4.06 4%
Raelene Vine 7/10 2276 days 3.38 3%
Rogier Ramaker 8/10 2281 days true 4.05 4%
Tim Sautter 4/10 2289 days true 3.8 3%
Dee 10/10 2304 days 3.34 3%
Dwharks 8/10 2304 days 3.34 3%
marypy 6/10 2304 days 3.34 3%
Inge 9/10 2304 days 3.34 3%
David Stannard 10/10 2335 days 3.3 3%
Daniel Bulach 9/10 2335 days 3.3 3%
Martyn Kool 8/10 2352 days true 3.93 4%
Marieke 7/10 2352 days true 3.93 4%
colmon 10/10 2366 days 3.26 3%
Thibault Bonenfant 8/10 2372 days true 3.9 4%
Thys 7/10 2378 days true 3.89 3%
John Freeman 5/10 2382 days true 3.88 3%
Ton Franke 8/10 2382 days true 3.88 3%
Michel Vourbraak 8/10 2382 days true 3.88 3%
foxmccleod 10/10 2396 days 3.22 3%
vvarrasso 5/10 2427 days 3.18 3%
Pauline_Quentin 10/10 2488 days 3.09 3%
jeremyliang 10/10 2519 days 3.05 3%
Syarifah 10/10 2549 days 3.01 3%
Aggie 10/10 2610 days 2.92 3%
nej91 9/10 2610 days 2.92 3%
Markus Frei 8/10 2627 days true 3.48 3%
Be Groen 6/10 2633 days true 3.47 3%
mpbiller 8/10 2641 days 2.88 2%
Keith Helen 10/10 2641 days true 3.46 3%
Madeleine Mueller 8/10 2646 days true 3.45 3%
Daniel & Manuela 8/10 2647 days true 3.45 3%
Romla 7/10 2648 days true 3.45 3%
Ronald Veldman 7/10 2648 days true 3.45 3%
Kasten Madsen 6/10 2650 days true 3.44 3%
Ryan Pynappels 7/10 2652 days true 3.44 3%
Melanie 7/10 2653 days true 3.44 3%
Ivouue & Alex 9/10 2653 days true 3.44 3%
Houter 8/10 2655 days true 3.44 3%
Mary Mitchell 8/10 2655 days true 3.44 3%
Manuela Weber 4/10 2655 days true 3.24 3%
Kimberley Mills 8/10 2657 days true 3.43 3%
Jurg Pfaendler 7/10 2658 days true 3.43 3%
Kim Thorsted 7/10 2664 days true 3.42 3%
Claudia & Julian 7/10 2668 days true 3.41 3%
Lotte Foged 8/10 2668 days true 3.41 3%
Frank & Julia 8/10 2669 days true 3.41 3%
JulesR 7/10 2670 days 2.84 2%
digbe 8/10 2670 days 2.84 2%
Marie Frank 10/10 2670 days true 3.41 3%
Francis Corrigan 6/10 2671 days true 3.41 3%
Sanne Ta Stroete 7/10 2721 days true 3.33 3%
Sashia 8/10 2722 days true 3.33 3%
Mark & Beth Kaufman 7/10 2736 days true 3.3 3%
Chris Muller 9/10 2736 days true 3.3 3%
Sarah and Soren 6/10 2738 days true 3.3 3%
Jan & Marian 6/10 2744 days true 3.29 3%
David & Mary-Jane Ryder 8/10 2744 days true 3.29 3%
Michael Muhlwitz 8/10 2747 days true 3.28 3%
BertvdK 2/10 2762 days 2.39 2%
hayleyemery 10/10 2885 days 2.55 2%
nwhitehead1 10/10 2885 days 2.55 2%
joeandem 10/10 2915 days 2.51 2%
Karen 9/10 2946 days 2.46 2%
Stefan Elsenbruch 7/10 2980 days true 2.9 2%
Thierry Meylan 8/10 2983 days true 2.9 2%
Maureen Hardy 3/10 2984 days true 2.68 2%
Sophie Burge 8/10 2984 days true 2.89 2%
Danielle 8/10 2985 days true 2.89 2%
Ilse & Thys 8/10 2990 days true 2.88 2%
Frank & Ruth 8/10 2991 days true 2.88 2%
Ed Ronan 6/10 2992 days true 2.88 2%
Thorsten Grocholl 8/10 2994 days true 2.88 2%
joke 6/10 2994 days true 2.88 2%
alcatrazz 3/10 2996 days true 2.66 2%
Monique 8/10 2999 days true 2.87 2%
Jonathan Cree 7/10 3000 days true 2.87 2%
Aln 6/10 3001 days true 2.87 2%
Dave Allen 5/10 3004 days true 2.86 2%
Victor Lewis 9/10 3004 days true 2.86 2%
Roman & Esther 7/10 3004 days true 2.86 2%
Ann-Katrine & Sille 8/10 3005 days true 2.86 2%
Alan Munday 8/10 3005 days true 2.86 2%
J van de Vlekkert 9/10 3010 days true 2.85 2%
Kurmann/Kayser 8/10 3013 days true 2.85 2%
H Hensen 8/10 3021 days true 2.83 2%
Laura Hayes 10/10 3022 days true 2.83 2%
Brian Lind 8/10 3022 days true 2.83 2%
Angela 7/10 3023 days true 2.83 2%
Marianne Astorp 5/10 3026 days true 2.83 2%
Igor Filart 8/10 3030 days true 2.82 2%
Claire Bulmer 8/10 3030 days true 2.82 2%
Jan Holger Weib 8/10 3031 days true 2.82 2%
dodo81 9/10 3035 days 2.34 2%
Michellemarie 10/10 3188 days 2.13 2%
rinusm 8/10 3308 days true 2.36 2%
Kavita 9/10 3311 days 1.96 2%
Polil 7/10 3358 days true 2.28 2%
Andy 10/10 3362 days true 2.27 2%
Hershell 5/10 3364 days true 2.27 2%
Peter Schmidt 5/10 3372 days 1.88 1%
Schlaepfer 8/10 3374 days true 2.25 2%
jongejan 6/10 3378 days true 2.25 2%
Jannievan Osnabrugge 4/10 3382 days true 2.11 2%
th schuermann 5/10 3382 days true 2.24 2%
Malcolm Glad 8/10 3385 days true 2.24 2%
Ronny 9/10 3386 days true 2.23 2%
Lasse Olesen 8/10 3393 days true 2.22 2%
Monica and Danie. 8/10 3394 days true 2.22 2%
Annette Schmitt 9/10 3394 days true 2.22 2%
Nadine Schaee 8/10 3397 days true 2.22 2%
uleugel 4/10 3409 days true 2.07 2%
Beute Jacob 7/10 3413 days true 2.19 2%
Peter Tres 8/10 3415 days true 2.19 2%
EA Anders 4/10 3417 days true 2.06 2%
Astrio Gregersen 8/10 3429 days true 2.16 2%
mariekef 9/10 3446 days true 2.14 2%
bertramf 10/10 3447 days true 2.13 2%
martint 8/10 3455 days true 2.12 2%
katepat 8/10 3462 days true 2.11 2%
Anita de Boer 7/10 3464 days true 2.11 2%
Ulyate 6/10 3473 days true 2.09 2%
Jeanette Larsen 7/10 3474 days true 2.09 2%
Sara Reekmans 9/10 3485 days true 2.07 2%
Emily and Alex 9/10 3489 days true 2.06 2%
Emear Donnelly 7/10 3627 days true 1.84 1%
ralphl 8/10 3661 days true 1.78 1%
RolandV 9/10 3690 days true 1.73 1%
suet 7/10 3706 days true 1.71 1%
desl 7/10 3706 days true 1.71 1%
Sally477 9/10 3707 days 1.42 1%
Marc_N 8/10 3707 days true 1.71 1%
StefanieA 3/10 3708 days true 1.58 1%
Jelle 7/10 3709 days true 1.7 1%
Dave Ashun 7/10 3713 days true 1.7 1%
Thomas1646 8/10 3713 days true 1.7 1%
Lars 9/10 3723 days true 1.68 1%
SteveW 9/10 3725 days true 1.68 1%
TobiasK 8/10 3725 days true 1.68 1%
Rob 8/10 3730 days true 1.67 1%
Keith 7/10 3730 days true 1.67 1%
Steve 9/10 3740 days true 1.65 1%
Heather 7/10 3743 days true 1.65 1%
Jason 3/10 3745 days true 1.52 1%
Nikolaj 9/10 3757 days true 1.62 1%
MattEngland 9/10 3761 days true 1.62 1%
CharlotteC 9/10 3761 days true 1.62 1%
SuenSwitzerland 9/10 3765 days true 1.61 1%
Sheridan Hancock 10/10 3765 days 1.34 1%
Henk 8/10 3771 days true 1.6 1%
Maxim 9/10 3772 days true 1.6 1%
Rachel 8/10 3772 days true 1.6 1%
Anna 7/10 3773 days true 1.6 1%
Thomas 10/10 3774 days true 1.6 1%
John 9/10 3776 days true 1.59 1%
Miranda 9/10 3783 days true 1.58 1%
hanna_and_matt 10/10 3805 days 1.29 1%
Jason 7/10 3811 days true 1.54 1%
Erin 10/10 3857 days 1.22 1%
fiona bergin 10/10 3870 days 1.2 1%
Anthony 8/10 4086 days true 1.08 1%
Elizabeth Woodruff 9/10 4086 days true 1.08 1%
Miranda 8/10 4107 days true 1.05 1%
Pete 8/10 4195 days true 0.9 0%
ranker_34 8/10 4308 days true 0.72 0%
Jessica Callen 8/10 4431 days true 0.52 0%
Beth 8/10 4433 days true 0.51 0%
Fran 8/10 4436 days true 0.51 0%
John 9/10 4439 days true 0.5 0%
Jane 8/10 4439 days true 0.5 0%
Chris 7/10 4443 days true 0.5 0%
Jacob Mille 8/10 4450 days true 0.48 0%
Yasmin Michael 9/10 4472 days true 0.45 0%
Suzy 7/10 4476 days true 0.44 0%
Janne 8/10 4476 days true 0.44 0%
Andy 7/10 4478 days true 0.44 0%
Sandra 6/10 4478 days true 0.44 0%
Colin 7/10 4480 days true 0.44 0%
Gillian 8/10 4483 days true 0.43 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

-0.73% 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 4 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 3 days. Adjustments are according to the following table.

Days Adjustment
0 -0.00%
1 -0.02%
2 -0.04%
3 -0.06%
4 -0.08%
5 -0.10%
6 -0.12%

Final Ranking Score

75%

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