| Sidewinder vs King | 116–97 | 54.46% |
| Sidewinder vs Kazuya | 105–98 | 51.72% |
| Sidewinder vs Jin | 106–76 | 58.24% |
| Sidewinder vs Bryan | 58–71 | 44.96% |
| Sidewinder vs Dragunov | 60–69 | 46.51% |
| Sidewinder vs Law | 60–43 | 58.25% |
| Sidewinder vs Steve | 33–59 | 35.87% |
| Sidewinder vs Paul | 43–39 | 52.44% |
| Sidewinder vs Devil Jin | 35–46 | 43.21% |
| Sidewinder vs Reina | 36–44 | 45.00% |
| Sidewinder vs Hwoarang | 23–45 | 33.82% |
| Sidewinder vs Yoshimitsu | 34–27 | 55.74% |
| Sidewinder vs Lee | 18–40 | 31.03% |
| Sidewinder vs Feng | 21–27 | 43.75% |
| Sidewinder vs Lili | 27–21 | 56.25% |
| Sidewinder vs Victor | 22–25 | 46.81% |
| Sidewinder vs Alisa | 30–15 | 66.67% |
| Sidewinder vs Jun | 23–21 | 52.27% |
| Sidewinder vs Asuka | 18–25 | 41.86% |
| Sidewinder vs Nina | 19–23 | 45.24% |
| Sidewinder vs Lars | 13–25 | 34.21% |
| Sidewinder vs Eddy | 17–21 | 44.74% |
| Sidewinder vs Azucena | 16–14 | 53.33% |
| Sidewinder vs Shaheen | 7–22 | 24.14% |
| Sidewinder vs Jack-8 | 11–15 | 42.31% |
| Sidewinder vs Leo | 11–13 | 45.83% |
| Sidewinder vs Xiaoyu | 10–11 | 47.62% |
| Sidewinder vs Raven | 5–14 | 26.32% |
| Sidewinder vs Heihachi | 6–12 | 33.33% |
| Sidewinder vs Lidia | 4–13 | 23.53% |
| Sidewinder vs Claudio | 11–5 | 68.75% |
| Sidewinder vs Kuma | 7–9 | 43.75% |
| Sidewinder vs Anna | 6–8 | 42.86% |
| Sidewinder vs Clive | 10–3 | 76.92% |
| Sidewinder vs Zafina | 3–6 | 33.33% |
| Sidewinder vs Panda | 5–2 | 71.43% |
| Sidewinder vs Leroy | 4–3 | 57.14% |
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.