| UnderSeaBoot vs Reina | 50–41 | 54.95% |
| UnderSeaBoot vs Kazuya | 41–46 | 47.13% |
| UnderSeaBoot vs King | 36–37 | 49.32% |
| UnderSeaBoot vs Bryan | 26–40 | 39.39% |
| UnderSeaBoot vs Lidia | 40–25 | 61.54% |
| UnderSeaBoot vs Steve | 36–22 | 62.07% |
| UnderSeaBoot vs Hwoarang | 27–23 | 54.00% |
| UnderSeaBoot vs Jin | 21–28 | 42.86% |
| UnderSeaBoot vs Law | 23–20 | 53.49% |
| UnderSeaBoot vs Lili | 21–22 | 48.84% |
| UnderSeaBoot vs Eddy | 23–19 | 54.76% |
| UnderSeaBoot vs Devil Jin | 24–15 | 61.54% |
| UnderSeaBoot vs Feng | 16–23 | 41.03% |
| UnderSeaBoot vs Lars | 19–20 | 48.72% |
| UnderSeaBoot vs Lee | 21–18 | 53.85% |
| UnderSeaBoot vs Heihachi | 18–21 | 46.15% |
| UnderSeaBoot vs Dragunov | 22–15 | 59.46% |
| UnderSeaBoot vs Asuka | 18–18 | 50.00% |
| UnderSeaBoot vs Yoshimitsu | 12–21 | 36.36% |
| UnderSeaBoot vs Victor | 16–16 | 50.00% |
| UnderSeaBoot vs Paul | 10–20 | 33.33% |
| UnderSeaBoot vs Jun | 22–8 | 73.33% |
| UnderSeaBoot vs Xiaoyu | 11–14 | 44.00% |
| UnderSeaBoot vs Leroy | 16–9 | 64.00% |
| UnderSeaBoot vs Raven | 16–4 | 80.00% |
| UnderSeaBoot vs Leo | 10–9 | 52.63% |
| UnderSeaBoot vs Nina | 9–10 | 47.37% |
| UnderSeaBoot vs Alisa | 8–10 | 44.44% |
| UnderSeaBoot vs Kuma | 7–11 | 38.89% |
| UnderSeaBoot vs Azucena | 9–5 | 64.29% |
| UnderSeaBoot vs Jack-8 | 3–10 | 23.08% |
| UnderSeaBoot vs Zafina | 8–5 | 61.54% |
| UnderSeaBoot vs Claudio | 6–4 | 60.00% |
| UnderSeaBoot vs Shaheen | 6–2 | 75.00% |
| UnderSeaBoot vs Anna | 2–2 | 50.00% |
| UnderSeaBoot vs Panda | 1–2 | 33.33% |
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.