| Nagi Seishiro vs Reina | 25–9 | 73.53% |
| Nagi Seishiro vs Heihachi | 16–18 | 47.06% |
| Nagi Seishiro vs Jin | 14–14 | 50.00% |
| Nagi Seishiro vs Kazuya | 13–15 | 46.43% |
| Nagi Seishiro vs Bryan | 10–7 | 58.82% |
| Nagi Seishiro vs Steve | 6–10 | 37.50% |
| Nagi Seishiro vs Dragunov | 6–7 | 46.15% |
| Nagi Seishiro vs Lili | 9–3 | 75.00% |
| Nagi Seishiro vs Hwoarang | 4–7 | 36.36% |
| Nagi Seishiro vs Lee | 1–10 | 9.09% |
| Nagi Seishiro vs Lidia | 5–6 | 45.45% |
| Nagi Seishiro vs Victor | 3–7 | 30.00% |
| Nagi Seishiro vs Devil Jin | 6–3 | 66.67% |
| Nagi Seishiro vs Feng | 4–5 | 44.44% |
| Nagi Seishiro vs Lars | 5–4 | 55.56% |
| Nagi Seishiro vs Yoshimitsu | 7–1 | 87.50% |
| Nagi Seishiro vs Clive | 5–3 | 62.50% |
| Nagi Seishiro vs Asuka | 4–3 | 57.14% |
| Nagi Seishiro vs Paul | 5–1 | 83.33% |
| Nagi Seishiro vs Law | 0–6 | 0.00% |
| Nagi Seishiro vs Claudio | 4–2 | 66.67% |
| Nagi Seishiro vs Azucena | 3–3 | 50.00% |
| Nagi Seishiro vs King | 3–2 | 60.00% |
| Nagi Seishiro vs Leo | 2–3 | 40.00% |
| Nagi Seishiro vs Jun | 1–4 | 20.00% |
| Nagi Seishiro vs Raven | 3–2 | 60.00% |
| Nagi Seishiro vs Eddy | 3–2 | 60.00% |
| Nagi Seishiro vs Armor King | 4–1 | 80.00% |
| Nagi Seishiro vs Miary Zo | 3–2 | 60.00% |
| Nagi Seishiro vs Xiaoyu | 1–3 | 25.00% |
| Nagi Seishiro vs Nina | 2–2 | 50.00% |
| Nagi Seishiro vs Leroy | 1–2 | 33.33% |
| Nagi Seishiro vs Jack-8 | 1–1 | 50.00% |
| Nagi Seishiro vs Alisa | 2–0 | 100.00% |
| Nagi Seishiro vs Fahkumram | 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.