| Seishiro Nagi vs Eddy | 20–26 | 43.48% |
| Seishiro Nagi vs Reina | 22–17 | 56.41% |
| Seishiro Nagi vs King | 13–24 | 35.14% |
| Seishiro Nagi vs Kazuya | 17–16 | 51.52% |
| Seishiro Nagi vs Law | 16–13 | 55.17% |
| Seishiro Nagi vs Jun | 17–12 | 58.62% |
| Seishiro Nagi vs Asuka | 12–15 | 44.44% |
| Seishiro Nagi vs Jin | 19–6 | 76.00% |
| Seishiro Nagi vs Bryan | 14–11 | 56.00% |
| Seishiro Nagi vs Steve | 11–13 | 45.83% |
| Seishiro Nagi vs Lili | 14–9 | 60.87% |
| Seishiro Nagi vs Hwoarang | 12–10 | 54.55% |
| Seishiro Nagi vs Victor | 6–12 | 33.33% |
| Seishiro Nagi vs Lidia | 9–9 | 50.00% |
| Seishiro Nagi vs Dragunov | 5–11 | 31.25% |
| Seishiro Nagi vs Leo | 8–8 | 50.00% |
| Seishiro Nagi vs Azucena | 9–7 | 56.25% |
| Seishiro Nagi vs Jack-8 | 5–8 | 38.46% |
| Seishiro Nagi vs Yoshimitsu | 7–5 | 58.33% |
| Seishiro Nagi vs Lars | 6–6 | 50.00% |
| Seishiro Nagi vs Paul | 7–4 | 63.64% |
| Seishiro Nagi vs Alisa | 6–5 | 54.55% |
| Seishiro Nagi vs Nina | 4–7 | 36.36% |
| Seishiro Nagi vs Raven | 6–5 | 54.55% |
| Seishiro Nagi vs Miary Zo | 6–4 | 60.00% |
| Seishiro Nagi vs Claudio | 3–5 | 37.50% |
| Seishiro Nagi vs Lee | 2–6 | 25.00% |
| Seishiro Nagi vs Kuma | 3–5 | 37.50% |
| Seishiro Nagi vs Zafina | 6–2 | 75.00% |
| Seishiro Nagi vs Panda | 4–2 | 66.67% |
| Seishiro Nagi vs Leroy | 5–1 | 83.33% |
| Seishiro Nagi vs Armor King | 4–2 | 66.67% |
| Seishiro Nagi vs Devil Jin | 2–3 | 40.00% |
| Seishiro Nagi vs Shaheen | 3–2 | 60.00% |
| Seishiro Nagi vs Feng | 1–2 | 33.33% |
| Seishiro Nagi vs Heihachi | 3–0 | 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.