| Jaston vs Eddy | 10–15 | 40.00% |
| Jaston vs Hwoarang | 10–4 | 71.43% |
| Jaston vs King | 6–6 | 50.00% |
| Jaston vs Jin | 3–9 | 25.00% |
| Jaston vs Bryan | 5–6 | 45.45% |
| Jaston vs Law | 4–6 | 40.00% |
| Jaston vs Kazuya | 8–2 | 80.00% |
| Jaston vs Asuka | 5–5 | 50.00% |
| Jaston vs Azucena | 5–5 | 50.00% |
| Jaston vs Lili | 4–5 | 44.44% |
| Jaston vs Leo | 4–5 | 44.44% |
| Jaston vs Dragunov | 4–4 | 50.00% |
| Jaston vs Reina | 5–3 | 62.50% |
| Jaston vs Yoshimitsu | 3–4 | 42.86% |
| Jaston vs Xiaoyu | 2–4 | 33.33% |
| Jaston vs Claudio | 0–6 | 0.00% |
| Jaston vs Raven | 2–4 | 33.33% |
| Jaston vs Paul | 1–4 | 20.00% |
| Jaston vs Zafina | 4–1 | 80.00% |
| Jaston vs Feng | 2–2 | 50.00% |
| Jaston vs Shaheen | 4–0 | 100.00% |
| Jaston vs Leroy | 2–2 | 50.00% |
| Jaston vs Jun | 1–3 | 25.00% |
| Jaston vs Victor | 2–2 | 50.00% |
| Jaston vs Nina | 2–1 | 66.67% |
| Jaston vs Lee | 2–1 | 66.67% |
| Jaston vs Panda | 1–2 | 33.33% |
| Jaston vs Steve | 1–1 | 50.00% |
| Jaston vs Jack-8 | 1–1 | 50.00% |
| Jaston vs Devil Jin | 0–2 | 0.00% |
| Jaston vs Lars | 1–1 | 50.00% |
| Jaston vs Alisa | 0–2 | 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.