| Jeffway1 vs Jin | 9–3 | 75.00% |
| Jeffway1 vs Steve | 8–4 | 66.67% |
| Jeffway1 vs King | 9–2 | 81.82% |
| Jeffway1 vs Alisa | 6–4 | 60.00% |
| Jeffway1 vs Eddy | 6–3 | 66.67% |
| Jeffway1 vs Lidia | 4–5 | 44.44% |
| Jeffway1 vs Yoshimitsu | 5–3 | 62.50% |
| Jeffway1 vs Hwoarang | 8–0 | 100.00% |
| Jeffway1 vs Bryan | 8–0 | 100.00% |
| Jeffway1 vs Dragunov | 2–6 | 25.00% |
| Jeffway1 vs Lars | 2–6 | 25.00% |
| Jeffway1 vs Nina | 6–2 | 75.00% |
| Jeffway1 vs Azucena | 6–2 | 75.00% |
| Jeffway1 vs Asuka | 6–1 | 85.71% |
| Jeffway1 vs Kazuya | 4–3 | 57.14% |
| Jeffway1 vs Feng | 4–1 | 80.00% |
| Jeffway1 vs Law | 5–0 | 100.00% |
| Jeffway1 vs Paul | 2–2 | 50.00% |
| Jeffway1 vs Jun | 1–3 | 25.00% |
| Jeffway1 vs Kuma | 2–1 | 66.67% |
| Jeffway1 vs Claudio | 2–0 | 100.00% |
| Jeffway1 vs Jack-8 | 2–0 | 100.00% |
| Jeffway1 vs Reina | 2–0 | 100.00% |
| Jeffway1 vs Heihachi | 2–0 | 100.00% |
| Jeffway1 vs Xiaoyu | 1–0 | 100.00% |
| Jeffway1 vs Lili | 0–1 | 0.00% |
| Jeffway1 vs Leo | 1–0 | 100.00% |
| Jeffway1 vs Panda | 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.