| Nann Britannia vs Jin | 123–123 | 50.00% |
| Nann Britannia vs Clive | 86–89 | 49.14% |
| Nann Britannia vs Bryan | 82–81 | 50.31% |
| Nann Britannia vs Kazuya | 69–90 | 43.40% |
| Nann Britannia vs King | 81–77 | 51.27% |
| Nann Britannia vs Law | 86–64 | 57.33% |
| Nann Britannia vs Hwoarang | 80–62 | 56.34% |
| Nann Britannia vs Yoshimitsu | 73–60 | 54.89% |
| Nann Britannia vs Dragunov | 72–60 | 54.55% |
| Nann Britannia vs Steve | 64–64 | 50.00% |
| Nann Britannia vs Lili | 76–51 | 59.84% |
| Nann Britannia vs Reina | 54–51 | 51.43% |
| Nann Britannia vs Devil Jin | 46–43 | 51.69% |
| Nann Britannia vs Paul | 48–39 | 55.17% |
| Nann Britannia vs Leo | 40–43 | 48.19% |
| Nann Britannia vs Xiaoyu | 40–41 | 49.38% |
| Nann Britannia vs Lars | 45–36 | 55.56% |
| Nann Britannia vs Heihachi | 41–40 | 50.62% |
| Nann Britannia vs Lee | 28–52 | 35.00% |
| Nann Britannia vs Jun | 39–37 | 51.32% |
| Nann Britannia vs Nina | 35–40 | 46.67% |
| Nann Britannia vs Asuka | 43–31 | 58.11% |
| Nann Britannia vs Lidia | 38–34 | 52.78% |
| Nann Britannia vs Victor | 45–26 | 63.38% |
| Nann Britannia vs Eddy | 38–32 | 54.29% |
| Nann Britannia vs Jack-8 | 31–29 | 51.67% |
| Nann Britannia vs Zafina | 33–22 | 60.00% |
| Nann Britannia vs Leroy | 28–24 | 53.85% |
| Nann Britannia vs Claudio | 18–33 | 35.29% |
| Nann Britannia vs Shaheen | 27–23 | 54.00% |
| Nann Britannia vs Feng | 25–18 | 58.14% |
| Nann Britannia vs Azucena | 22–20 | 52.38% |
| Nann Britannia vs Kuma | 20–21 | 48.78% |
| Nann Britannia vs Raven | 19–22 | 46.34% |
| Nann Britannia vs Alisa | 19–19 | 50.00% |
| Nann Britannia vs Panda | 5–7 | 41.67% |
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.