I want to build a platform that’s between TikTok and Cellartracker - to have video reviews upto 60 seconds with scores from 0.1/10 to 9.9/10 with no 10/10 as perfection is impossible. This is how the scores would convert from other systems.
5 point scores - double them
20 point scores - half them
100 point scores - divide by 5 and minus 10
So 4.7/5 becomes 9.4/10
17/20 becomes 8.5/10
92/100 becomes 8.4/10
What do you think about it? Would you like to participate?
between 100 and 10 it doesn’t work properly.
70 = 10 = 5
85 = 15 = 7.5
(below 70 is a faulty wine)
why use decimal points?
100 p is easier
Because nobody outside the wine world understands the 100 point system and I want to rate many other things.
Nobody understands ranking things out of 100? You sure about that?
% sure. Duh. 
A wine that’s 16 out of 20 for Jancis Robinson is probably 90 out of 100 for Robert Parker, not 80 out of 100 and that’s confusing for some people.
Think you mean 10.0%
The conversion will require more analysis, and I recall Aussie critic Jeremy Oliver spending a lot of time trying to reconcile 20 point to 100 point systems.
In particular, I doubt 5 point scores follow anywhere near the distribution of 20 point or 100 point scores, and IME are typically a whole number scale, the lack of accuracy (sic.) I’m sure intentional. The distributions will vary by the person using them e.g. suckling vs. the rest.
If aiming at amateurs, keep it simple, as I’m sure you’ll see an excess of 0s and 10s (or whatever min/max you choose)
Would I participate? Nope, not as a reviewer or viewer. I consider scores for wines to be a nonsense that tricks people into believing there’s such a thing as an objective scale of quality. There are however enough that buy into this concept, that there is a market for scores.
Americans most certainly understand the 100 point system because that is what they experienced in school. But the current social media trend is for people to rate things out of 10.
All of that said, this board is clearly not your target audience. You should probably look elsewhere.
Why are you converting others scores?
You can’t move the scores to another system and absolutely be sure that was the original scorers intent on the that system.
Somebody who is scoring out of 5 is probably doing so because they don’t want to differentiate minutia between wines. It’s just a general guide of quality. You get decimals when a site starts averaging the score/stars.
I’d say just leave other people’s scores alone and do your thing with TikTok / YouTube scoring.
I can see it now ASMR of foil cutting and cork popping, followed by nails on the bottle and a 9.9!
If people prefer the 100 point system so much, I don’t really mind using it, I just need to have some content anyway.
Cool concept, and clearly the younger generation is geared toward this lexicon. I don’t think the older generation will participate significantly, but time moves on. I enjoy watching these from time to time but it really depends on where I’m at. I can be sitting anywhere and read tasting notes, the same is not true for watching videos.
The one question I have is why create a new numerical scale. I disagree with your premise that the 100-point scale is not universally used or known. I think it’s the exact opposite. I googled it out of curiosity, and 100-point scale is even the most widely used grading scale in academia, internationally. Yes, many other nations use a 20-point scale or a 5-point scale, or even a letter grade, but 100-point scale is more universally known and used. For many of us it is rather intuitive plus gives you a greater range of expression, if you choose to use it. The problem is many of us have compressed the scale so dramatically that you can make the argument that it is a 10-point scale or a 20-point scale. If you are launching a new platform for a new generation, maybe you need to come up with your own grading or rating system that breaks from the existing molds and does something novel and intuitive for your generation.
I watch plenty of YouTube food reviews that use the scale, but honestly I don’t pay any attention to the score at the end. It’s really about the visual and verbal description.
There’s really no consistency between reviewers and usually not between different foods of the same reviewer.
I’d just create your idea and let the new generation do their thing and see if it catches on.
I’m a triple Shemp on this one.
The 10 point system has been used many times. I am also using decimals, which has also been done.
Am I the only one who finds the “from 0.1/10 to 9.9/10” system somewhat contradictory?
Isn’t that “from 0.1 to 9.9?” If there is no 10/10, the system can’t be “n/10” but “n/9.9”
I won’t change my rating methodology, used for many years with attempts at consistency, for the purpose of uploading Tik Toks
We should also start using the metric system and Esperanto.
Gault Millau rates restaurants on a scale of 1 to 20, with 20 being the highest. Restaurants given below 10 points are rarely listed. The points are awarded based on the quality of the food, with comments about service, price or the atmosphere of the restaurant given separately. Based on this rating, high-ranking restaurants may display one to five
Under its original authors and for many years after they left, Gault Millau never awarded a score of 20 points, under the argument that perfection is beyond the limitations of a normal human being.