| Thomas O'Malley vs King | 51–38 | 57.30% |
| Thomas O'Malley vs Jin | 35–39 | 47.30% |
| Thomas O'Malley vs Steve | 32–40 | 44.44% |
| Thomas O'Malley vs Reina | 35–31 | 53.03% |
| Thomas O'Malley vs Hwoarang | 26–26 | 50.00% |
| Thomas O'Malley vs Law | 25–25 | 50.00% |
| Thomas O'Malley vs Kazuya | 25–25 | 50.00% |
| Thomas O'Malley vs Lidia | 28–20 | 58.33% |
| Thomas O'Malley vs Azucena | 29–16 | 64.44% |
| Thomas O'Malley vs Lili | 21–23 | 47.73% |
| Thomas O'Malley vs Dragunov | 23–20 | 53.49% |
| Thomas O'Malley vs Victor | 22–21 | 51.16% |
| Thomas O'Malley vs Asuka | 18–22 | 45.00% |
| Thomas O'Malley vs Bryan | 15–23 | 39.47% |
| Thomas O'Malley vs Yoshimitsu | 17–19 | 47.22% |
| Thomas O'Malley vs Eddy | 7–29 | 19.44% |
| Thomas O'Malley vs Lars | 13–22 | 37.14% |
| Thomas O'Malley vs Leo | 18–16 | 52.94% |
| Thomas O'Malley vs Jun | 20–12 | 62.50% |
| Thomas O'Malley vs Devil Jin | 7–22 | 24.14% |
| Thomas O'Malley vs Raven | 15–12 | 55.56% |
| Thomas O'Malley vs Nina | 9–16 | 36.00% |
| Thomas O'Malley vs Paul | 11–10 | 52.38% |
| Thomas O'Malley vs Kuma | 10–11 | 47.62% |
| Thomas O'Malley vs Leroy | 10–10 | 50.00% |
| Thomas O'Malley vs Alisa | 11–8 | 57.89% |
| Thomas O'Malley vs Xiaoyu | 11–7 | 61.11% |
| Thomas O'Malley vs Heihachi | 9–9 | 50.00% |
| Thomas O'Malley vs Jack-8 | 5–12 | 29.41% |
| Thomas O'Malley vs Lee | 10–6 | 62.50% |
| Thomas O'Malley vs Claudio | 6–9 | 40.00% |
| Thomas O'Malley vs Zafina | 11–3 | 78.57% |
| Thomas O'Malley vs Feng | 9–1 | 90.00% |
| Thomas O'Malley vs Shaheen | 5–5 | 50.00% |
| Thomas O'Malley vs Miary Zo | 1–3 | 25.00% |
| Thomas O'Malley vs Panda | 1–1 | 50.00% |
| Thomas O'Malley vs Clive | 1–1 | 50.00% |
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.