| Pettsson vs King | 9–10 | 47.37% |
| Pettsson vs Jin | 9–9 | 50.00% |
| Pettsson vs Steve | 9–8 | 52.94% |
| Pettsson vs Reina | 13–3 | 81.25% |
| Pettsson vs Lars | 3–12 | 20.00% |
| Pettsson vs Kazuya | 7–5 | 58.33% |
| Pettsson vs Bryan | 6–5 | 54.55% |
| Pettsson vs Hwoarang | 5–5 | 50.00% |
| Pettsson vs Law | 6–3 | 66.67% |
| Pettsson vs Victor | 3–5 | 37.50% |
| Pettsson vs Eddy | 3–5 | 37.50% |
| Pettsson vs Jack-8 | 4–3 | 57.14% |
| Pettsson vs Dragunov | 1–5 | 16.67% |
| Pettsson vs Leo | 6–0 | 100.00% |
| Pettsson vs Kuma | 1–4 | 20.00% |
| Pettsson vs Asuka | 0–4 | 0.00% |
| Pettsson vs Feng | 1–3 | 25.00% |
| Pettsson vs Lili | 4–0 | 100.00% |
| Pettsson vs Leroy | 2–2 | 50.00% |
| Pettsson vs Xiaoyu | 0–3 | 0.00% |
| Pettsson vs Devil Jin | 2–1 | 66.67% |
| Pettsson vs Claudio | 1–2 | 33.33% |
| Pettsson vs Lee | 1–2 | 33.33% |
| Pettsson vs Jun | 2–1 | 66.67% |
| Pettsson vs Azucena | 3–0 | 100.00% |
| Pettsson vs Raven | 0–3 | 0.00% |
| Pettsson vs Yoshimitsu | 2–0 | 100.00% |
| Pettsson vs Armor King | 1–1 | 50.00% |
| Pettsson vs Paul | 1–0 | 100.00% |
| Pettsson vs Alisa | 0–1 | 0.00% |
| Pettsson vs Nina | 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.