| RedKarasu vs King | 36–51 | 41.38% |
| RedKarasu vs Jin | 34–36 | 48.57% |
| RedKarasu vs Kazuya | 21–41 | 33.87% |
| RedKarasu vs Reina | 27–32 | 45.76% |
| RedKarasu vs Lidia | 21–38 | 35.59% |
| RedKarasu vs Hwoarang | 26–28 | 48.15% |
| RedKarasu vs Steve | 26–26 | 50.00% |
| RedKarasu vs Victor | 21–26 | 44.68% |
| RedKarasu vs Dragunov | 16–30 | 34.78% |
| RedKarasu vs Clive | 13–25 | 34.21% |
| RedKarasu vs Azucena | 17–20 | 45.95% |
| RedKarasu vs Bryan | 18–17 | 51.43% |
| RedKarasu vs Asuka | 7–28 | 20.00% |
| RedKarasu vs Xiaoyu | 17–14 | 54.84% |
| RedKarasu vs Jun | 18–13 | 58.06% |
| RedKarasu vs Lili | 7–23 | 23.33% |
| RedKarasu vs Nina | 15–14 | 51.72% |
| RedKarasu vs Law | 6–22 | 21.43% |
| RedKarasu vs Eddy | 12–16 | 42.86% |
| RedKarasu vs Heihachi | 11–15 | 42.31% |
| RedKarasu vs Yoshimitsu | 12–10 | 54.55% |
| RedKarasu vs Lee | 5–17 | 22.73% |
| RedKarasu vs Kuma | 10–12 | 45.45% |
| RedKarasu vs Raven | 8–14 | 36.36% |
| RedKarasu vs Leo | 6–14 | 30.00% |
| RedKarasu vs Alisa | 7–11 | 38.89% |
| RedKarasu vs Paul | 2–15 | 11.76% |
| RedKarasu vs Feng | 4–11 | 26.67% |
| RedKarasu vs Lars | 5–9 | 35.71% |
| RedKarasu vs Leroy | 6–8 | 42.86% |
| RedKarasu vs Jack-8 | 5–7 | 41.67% |
| RedKarasu vs Claudio | 7–5 | 58.33% |
| RedKarasu vs Zafina | 5–4 | 55.56% |
| RedKarasu vs Shaheen | 4–3 | 57.14% |
| RedKarasu vs Anna | 3–2 | 60.00% |
| RedKarasu vs Devil Jin | 2–2 | 50.00% |
| RedKarasu vs Panda | 2–2 | 50.00% |
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.