| UnderSeaBoot vs Reina | 54–47 | 53.47% |
| UnderSeaBoot vs Kazuya | 45–48 | 48.39% |
| UnderSeaBoot vs King | 39–37 | 51.32% |
| UnderSeaBoot vs Bryan | 27–44 | 38.03% |
| UnderSeaBoot vs Lidia | 40–25 | 61.54% |
| UnderSeaBoot vs Jin | 25–33 | 43.10% |
| UnderSeaBoot vs Steve | 36–22 | 62.07% |
| UnderSeaBoot vs Lili | 31–25 | 55.36% |
| UnderSeaBoot vs Hwoarang | 27–23 | 54.00% |
| UnderSeaBoot vs Law | 26–22 | 54.17% |
| UnderSeaBoot vs Heihachi | 26–21 | 55.32% |
| UnderSeaBoot vs Lee | 22–23 | 48.89% |
| UnderSeaBoot vs Lars | 22–22 | 50.00% |
| UnderSeaBoot vs Eddy | 23–19 | 54.76% |
| UnderSeaBoot vs Devil Jin | 24–17 | 58.54% |
| UnderSeaBoot vs Feng | 16–23 | 41.03% |
| UnderSeaBoot vs Asuka | 20–18 | 52.63% |
| UnderSeaBoot vs Dragunov | 23–15 | 60.53% |
| UnderSeaBoot vs Yoshimitsu | 12–21 | 36.36% |
| UnderSeaBoot vs Leroy | 20–13 | 60.61% |
| UnderSeaBoot vs Victor | 16–16 | 50.00% |
| UnderSeaBoot vs Paul | 10–20 | 33.33% |
| UnderSeaBoot vs Xiaoyu | 13–17 | 43.33% |
| UnderSeaBoot vs Jun | 22–8 | 73.33% |
| UnderSeaBoot vs Leo | 12–9 | 57.14% |
| UnderSeaBoot vs Raven | 16–5 | 76.19% |
| UnderSeaBoot vs Nina | 9–11 | 45.00% |
| UnderSeaBoot vs Alisa | 8–10 | 44.44% |
| UnderSeaBoot vs Kuma | 7–11 | 38.89% |
| UnderSeaBoot vs Jack-8 | 3–12 | 20.00% |
| UnderSeaBoot vs Azucena | 9–5 | 64.29% |
| UnderSeaBoot vs Zafina | 8–5 | 61.54% |
| UnderSeaBoot vs Claudio | 6–4 | 60.00% |
| UnderSeaBoot vs Armor King | 3–7 | 30.00% |
| UnderSeaBoot vs Shaheen | 6–2 | 75.00% |
| UnderSeaBoot vs Anna | 4–2 | 66.67% |
| UnderSeaBoot vs Miary Zo | 2–3 | 40.00% |
| UnderSeaBoot vs Panda | 1–2 | 33.33% |
| UnderSeaBoot vs Fahkumram | 0–2 | 0.00% |
| UnderSeaBoot vs Clive | 1–0 | 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.