| IDB1991 vs Eddy | 20–10 | 66.67% |
| IDB1991 vs Reina | 18–11 | 62.07% |
| IDB1991 vs Jin | 17–9 | 65.38% |
| IDB1991 vs Law | 14–6 | 70.00% |
| IDB1991 vs King | 13–7 | 65.00% |
| IDB1991 vs Bryan | 9–10 | 47.37% |
| IDB1991 vs Hwoarang | 14–4 | 77.78% |
| IDB1991 vs Kazuya | 11–3 | 78.57% |
| IDB1991 vs Paul | 5–7 | 41.67% |
| IDB1991 vs Asuka | 9–3 | 75.00% |
| IDB1991 vs Lili | 3–8 | 27.27% |
| IDB1991 vs Dragunov | 10–1 | 90.91% |
| IDB1991 vs Alisa | 7–4 | 63.64% |
| IDB1991 vs Yoshimitsu | 6–4 | 60.00% |
| IDB1991 vs Nina | 6–4 | 60.00% |
| IDB1991 vs Jun | 8–2 | 80.00% |
| IDB1991 vs Xiaoyu | 5–4 | 55.56% |
| IDB1991 vs Jack-8 | 4–4 | 50.00% |
| IDB1991 vs Azucena | 7–1 | 87.50% |
| IDB1991 vs Heihachi | 4–4 | 50.00% |
| IDB1991 vs Leroy | 5–2 | 71.43% |
| IDB1991 vs Devil Jin | 3–3 | 50.00% |
| IDB1991 vs Feng | 2–3 | 40.00% |
| IDB1991 vs Leo | 3–2 | 60.00% |
| IDB1991 vs Claudio | 4–1 | 80.00% |
| IDB1991 vs Kuma | 3–2 | 60.00% |
| IDB1991 vs Steve | 1–2 | 33.33% |
| IDB1991 vs Shaheen | 3–0 | 100.00% |
| IDB1991 vs Lee | 1–1 | 50.00% |
| IDB1991 vs Raven | 2–0 | 100.00% |
| IDB1991 vs Lars | 1–0 | 100.00% |
| IDB1991 vs Victor | 1–0 | 100.00% |
| IDB1991 vs Lidia | 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.