| Jontenius vs Reina | 14–8 | 63.64% |
| Jontenius vs Jin | 4–13 | 23.53% |
| Jontenius vs Dragunov | 4–12 | 25.00% |
| Jontenius vs Devil Jin | 3–10 | 23.08% |
| Jontenius vs King | 4–8 | 33.33% |
| Jontenius vs Bryan | 7–4 | 63.64% |
| Jontenius vs Lars | 4–7 | 36.36% |
| Jontenius vs Hwoarang | 5–5 | 50.00% |
| Jontenius vs Law | 6–3 | 66.67% |
| Jontenius vs Yoshimitsu | 6–3 | 66.67% |
| Jontenius vs Victor | 6–3 | 66.67% |
| Jontenius vs Steve | 4–4 | 50.00% |
| Jontenius vs Jun | 6–2 | 75.00% |
| Jontenius vs Azucena | 3–5 | 37.50% |
| Jontenius vs Xiaoyu | 6–1 | 85.71% |
| Jontenius vs Feng | 2–5 | 28.57% |
| Jontenius vs Nina | 4–2 | 66.67% |
| Jontenius vs Kazuya | 4–1 | 80.00% |
| Jontenius vs Claudio | 3–2 | 60.00% |
| Jontenius vs Lee | 2–2 | 50.00% |
| Jontenius vs Jack-8 | 1–2 | 33.33% |
| Jontenius vs Zafina | 2–1 | 66.67% |
| Jontenius vs Eddy | 1–2 | 33.33% |
| Jontenius vs Paul | 2–0 | 100.00% |
| Jontenius vs Asuka | 0–2 | 0.00% |
| Jontenius vs Leo | 0–2 | 0.00% |
| Jontenius vs Shaheen | 2–0 | 100.00% |
| Jontenius vs Leroy | 2–0 | 100.00% |
| Jontenius vs Heihachi | 0–2 | 0.00% |
| Jontenius vs Lili | 0–1 | 0.00% |
| Jontenius vs Kuma | 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.