| Viper vs Jin | 67–58 | 53.60% |
| Viper vs King | 52–36 | 59.09% |
| Viper vs Bryan | 49–36 | 57.65% |
| Viper vs Lili | 43–36 | 54.43% |
| Viper vs Law | 54–24 | 69.23% |
| Viper vs Kazuya | 38–38 | 50.00% |
| Viper vs Dragunov | 38–25 | 60.32% |
| Viper vs Xiaoyu | 30–32 | 48.39% |
| Viper vs Hwoarang | 31–23 | 57.41% |
| Viper vs Victor | 27–27 | 50.00% |
| Viper vs Paul | 24–26 | 48.00% |
| Viper vs Yoshimitsu | 20–30 | 40.00% |
| Viper vs Steve | 27–23 | 54.00% |
| Viper vs Alisa | 27–23 | 54.00% |
| Viper vs Jun | 21–28 | 42.86% |
| Viper vs Devil Jin | 19–28 | 40.43% |
| Viper vs Lee | 18–28 | 39.13% |
| Viper vs Reina | 31–15 | 67.39% |
| Viper vs Azucena | 29–15 | 65.91% |
| Viper vs Nina | 22–20 | 52.38% |
| Viper vs Lars | 25–16 | 60.98% |
| Viper vs Asuka | 21–19 | 52.50% |
| Viper vs Feng | 15–20 | 42.86% |
| Viper vs Claudio | 18–15 | 54.55% |
| Viper vs Raven | 13–20 | 39.39% |
| Viper vs Jack-8 | 15–17 | 46.88% |
| Viper vs Leo | 15–16 | 48.39% |
| Viper vs Eddy | 8–21 | 27.59% |
| Viper vs Leroy | 15–13 | 53.57% |
| Viper vs Kuma | 3–19 | 13.64% |
| Viper vs Zafina | 9–11 | 45.00% |
| Viper vs Heihachi | 6–12 | 33.33% |
| Viper vs Lidia | 4–6 | 40.00% |
| Viper vs Shaheen | 3–4 | 42.86% |
| Viper vs Panda | 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.