| Kosmic_Flask vs King | 94–101 | 48.21% |
| Kosmic_Flask vs Jin | 76–80 | 48.72% |
| Kosmic_Flask vs Kazuya | 68–81 | 45.64% |
| Kosmic_Flask vs Reina | 58–68 | 46.03% |
| Kosmic_Flask vs Law | 53–68 | 43.80% |
| Kosmic_Flask vs Eddy | 49–62 | 44.14% |
| Kosmic_Flask vs Steve | 47–56 | 45.63% |
| Kosmic_Flask vs Hwoarang | 39–60 | 39.39% |
| Kosmic_Flask vs Bryan | 43–54 | 44.33% |
| Kosmic_Flask vs Azucena | 39–45–1 | 46.43% |
| Kosmic_Flask vs Lars | 27–57 | 32.14% |
| Kosmic_Flask vs Lili | 33–41 | 44.59% |
| Kosmic_Flask vs Yoshimitsu | 32–39 | 45.07% |
| Kosmic_Flask vs Dragunov | 28–42 | 40.00% |
| Kosmic_Flask vs Asuka | 37–32 | 53.62% |
| Kosmic_Flask vs Nina | 25–41 | 37.88% |
| Kosmic_Flask vs Xiaoyu | 24–40 | 37.50% |
| Kosmic_Flask vs Jun | 28–34 | 45.16% |
| Kosmic_Flask vs Victor | 26–34 | 43.33% |
| Kosmic_Flask vs Heihachi | 22–29 | 43.14% |
| Kosmic_Flask vs Paul | 19–29 | 39.58% |
| Kosmic_Flask vs Leroy | 30–18 | 62.50% |
| Kosmic_Flask vs Leo | 21–21 | 50.00% |
| Kosmic_Flask vs Lee | 26–16 | 61.90% |
| Kosmic_Flask vs Jack-8 | 16–22 | 42.11% |
| Kosmic_Flask vs Feng | 17–21 | 44.74% |
| Kosmic_Flask vs Lidia | 18–19 | 48.65% |
| Kosmic_Flask vs Fahkumram | 17–20 | 45.95% |
| Kosmic_Flask vs Devil Jin | 15–21 | 41.67% |
| Kosmic_Flask vs Armor King | 14–21 | 40.00% |
| Kosmic_Flask vs Alisa | 12–16 | 42.86% |
| Kosmic_Flask vs Zafina | 11–16 | 40.74% |
| Kosmic_Flask vs Anna | 13–13 | 50.00% |
| Kosmic_Flask vs Claudio | 14–11 | 56.00% |
| Kosmic_Flask vs Raven | 9–15 | 37.50% |
| Kosmic_Flask vs Clive | 10–14 | 41.67% |
| Kosmic_Flask vs Kuma | 10–11 | 47.62% |
| Kosmic_Flask vs Shaheen | 5–6 | 45.45% |
| Kosmic_Flask vs Panda | 2–4 | 33.33% |
| Kosmic_Flask vs Miary Zo | 2–1 | 66.67% |
Limitations
This data is often requested to give insight into which characters you have more trouble with than others, but it is not particularly helpful for that. The main issue is that it is heavily skewed by how strong the opponents you play are.
For example, this data suggests my worst matchup is clearly vs Reina, but that's just because most of those games are vs Yagami.
There is a way to account for this being worked on. The central idea is to assign each matchup a rating vs you which adjusts based on the result, much like the regular rating but also based on the rating of each player. With this, it would give a better summary of how well you perform vs each character.
In the meantime, this page is here to present the data as requested.