| Flatline vs King | 24–22 | 52.17% |
| Flatline vs Eddy | 15–14 | 51.72% |
| Flatline vs Kazuya | 17–10 | 62.96% |
| Flatline vs Steve | 16–8 | 66.67% |
| Flatline vs Hwoarang | 13–7 | 65.00% |
| Flatline vs Paul | 12–7 | 63.16% |
| Flatline vs Lili | 12–7 | 63.16% |
| Flatline vs Yoshimitsu | 13–5 | 72.22% |
| Flatline vs Azucena | 7–9 | 43.75% |
| Flatline vs Jin | 7–8 | 46.67% |
| Flatline vs Asuka | 6–8 | 42.86% |
| Flatline vs Bryan | 11–2 | 84.62% |
| Flatline vs Dragunov | 3–9 | 25.00% |
| Flatline vs Reina | 9–3 | 75.00% |
| Flatline vs Raven | 6–6 | 50.00% |
| Flatline vs Jun | 4–6 | 40.00% |
| Flatline vs Devil Jin | 5–4 | 55.56% |
| Flatline vs Alisa | 4–5 | 44.44% |
| Flatline vs Jack-8 | 4–4 | 50.00% |
| Flatline vs Nina | 5–3 | 62.50% |
| Flatline vs Leroy | 4–4 | 50.00% |
| Flatline vs Victor | 6–2 | 75.00% |
| Flatline vs Anna | 4–4 | 50.00% |
| Flatline vs Law | 4–3 | 57.14% |
| Flatline vs Leo | 6–1 | 85.71% |
| Flatline vs Lars | 5–2 | 71.43% |
| Flatline vs Zafina | 4–1–1 | 80.00% |
| Flatline vs Feng | 1–3 | 25.00% |
| Flatline vs Clive | 2–2 | 50.00% |
| Flatline vs Shaheen | 2–1 | 66.67% |
| Flatline vs Lee | 3–0 | 100.00% |
| Flatline vs Claudio | 0–1 | 0.00% |
| Flatline vs Lidia | 1–0 | 100.00% |
| Flatline vs Heihachi | 1–0 | 100.00% |
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.