| Southsider vs Kazuya | 119–124 | 48.97% |
| Southsider vs King | 122–114 | 51.69% |
| Southsider vs Bryan | 73–92 | 44.24% |
| Southsider vs Reina | 73–88 | 45.34% |
| Southsider vs Jin | 90–64 | 58.44% |
| Southsider vs Steve | 55–73 | 42.97% |
| Southsider vs Hwoarang | 59–67 | 46.83% |
| Southsider vs Paul | 50–68 | 42.37% |
| Southsider vs Law | 60–56 | 51.72% |
| Southsider vs Asuka | 58–58 | 50.00% |
| Southsider vs Yoshimitsu | 44–70 | 38.60% |
| Southsider vs Eddy | 46–66 | 41.07% |
| Southsider vs Dragunov | 52–58 | 47.27% |
| Southsider vs Jun | 39–55 | 41.49% |
| Southsider vs Azucena | 40–54 | 42.55% |
| Southsider vs Lee | 37–51 | 42.05% |
| Southsider vs Lili | 37–40 | 48.05% |
| Southsider vs Leo | 39–34 | 53.42% |
| Southsider vs Feng | 28–36 | 43.75% |
| Southsider vs Lars | 29–28 | 50.88% |
| Southsider vs Raven | 22–32 | 40.74% |
| Southsider vs Xiaoyu | 28–24 | 53.85% |
| Southsider vs Lidia | 27–24 | 52.94% |
| Southsider vs Leroy | 18–29 | 38.30% |
| Southsider vs Nina | 20–26 | 43.48% |
| Southsider vs Alisa | 21–23 | 47.73% |
| Southsider vs Kuma | 21–22 | 48.84% |
| Southsider vs Devil Jin | 20–22 | 47.62% |
| Southsider vs Victor | 20–21 | 48.78% |
| Southsider vs Jack-8 | 13–22 | 37.14% |
| Southsider vs Claudio | 12–20 | 37.50% |
| Southsider vs Armor King | 14–17 | 45.16% |
| Southsider vs Miary Zo | 17–10 | 62.96% |
| Southsider vs Clive | 15–11 | 57.69% |
| Southsider vs Zafina | 7–17 | 29.17% |
| Southsider vs Heihachi | 10–14 | 41.67% |
| Southsider vs Shaheen | 7–10 | 41.18% |
| Southsider vs Anna | 7–4 | 63.64% |
| Southsider vs Panda | 3–4 | 42.86% |
| Southsider vs Fahkumram | 3–3 | 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.