| South on Sierra vs King | 7–6 | 53.85% |
| South on Sierra vs Hwoarang | 6–6 | 50.00% |
| South on Sierra vs Reina | 7–4 | 63.64% |
| South on Sierra vs Steve | 3–7 | 30.00% |
| South on Sierra vs Jin | 1–6 | 14.29% |
| South on Sierra vs Raven | 4–3 | 57.14% |
| South on Sierra vs Lili | 4–2 | 66.67% |
| South on Sierra vs Heihachi | 4–2 | 66.67% |
| South on Sierra vs Law | 5–0 | 100.00% |
| South on Sierra vs Jack-8 | 1–4 | 20.00% |
| South on Sierra vs Asuka | 2–3 | 40.00% |
| South on Sierra vs Lars | 3–2 | 60.00% |
| South on Sierra vs Lee | 3–2 | 60.00% |
| South on Sierra vs Leroy | 1–4 | 20.00% |
| South on Sierra vs Azucena | 2–2–1 | 50.00% |
| South on Sierra vs Eddy | 0–5 | 0.00% |
| South on Sierra vs Feng | 2–2 | 50.00% |
| South on Sierra vs Victor | 3–1 | 75.00% |
| South on Sierra vs Paul | 1–2 | 33.33% |
| South on Sierra vs Yoshimitsu | 1–2 | 33.33% |
| South on Sierra vs Claudio | 2–1 | 66.67% |
| South on Sierra vs Zafina | 0–3 | 0.00% |
| South on Sierra vs Jun | 0–3 | 0.00% |
| South on Sierra vs Lidia | 1–2 | 33.33% |
| South on Sierra vs Xiaoyu | 2–0 | 100.00% |
| South on Sierra vs Devil Jin | 0–2 | 0.00% |
| South on Sierra vs Dragunov | 2–0 | 100.00% |
| South on Sierra vs Alisa | 0–2 | 0.00% |
| South on Sierra vs Bryan | 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.