| Viper killer vs Reina | 7–12 | 36.84% |
| Viper killer vs Eddy | 3–14 | 17.65% |
| Viper killer vs Jin | 8–8 | 50.00% |
| Viper killer vs King | 4–11 | 26.67% |
| Viper killer vs Dragunov | 2–11 | 15.38% |
| Viper killer vs Hwoarang | 5–7 | 41.67% |
| Viper killer vs Azucena | 7–5 | 58.33% |
| Viper killer vs Steve | 5–5 | 50.00% |
| Viper killer vs Alisa | 2–4 | 33.33% |
| Viper killer vs Bryan | 2–3 | 40.00% |
| Viper killer vs Asuka | 3–2 | 60.00% |
| Viper killer vs Lili | 1–4 | 20.00% |
| Viper killer vs Law | 1–3 | 25.00% |
| Viper killer vs Devil Jin | 0–4 | 0.00% |
| Viper killer vs Lars | 0–4 | 0.00% |
| Viper killer vs Lee | 1–3 | 25.00% |
| Viper killer vs Yoshimitsu | 2–1 | 66.67% |
| Viper killer vs Feng | 0–3 | 0.00% |
| Viper killer vs Leo | 2–1 | 66.67% |
| Viper killer vs Paul | 0–2 | 0.00% |
| Viper killer vs Kazuya | 2–0 | 100.00% |
| Viper killer vs Raven | 0–2 | 0.00% |
| Viper killer vs Jack-8 | 0–1 | 0.00% |
| Viper killer vs Nina | 1–0 | 100.00% |
| Viper killer vs Victor | 0–1 | 0.00% |
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.