| Gaddummit vs Jin | 21–29 | 42.00% |
| Gaddummit vs Kazuya | 18–32 | 36.00% |
| Gaddummit vs Lili | 24–22 | 52.17% |
| Gaddummit vs Clive | 15–26 | 36.59% |
| Gaddummit vs Hwoarang | 16–23 | 41.03% |
| Gaddummit vs Reina | 19–19 | 50.00% |
| Gaddummit vs Eddy | 12–26 | 31.58% |
| Gaddummit vs Bryan | 14–20 | 41.18% |
| Gaddummit vs King | 16–16 | 50.00% |
| Gaddummit vs Azucena | 9–20 | 31.03% |
| Gaddummit vs Yoshimitsu | 10–17 | 37.04% |
| Gaddummit vs Steve | 10–15 | 40.00% |
| Gaddummit vs Devil Jin | 13–11 | 54.17% |
| Gaddummit vs Alisa | 8–15 | 34.78% |
| Gaddummit vs Dragunov | 9–11 | 45.00% |
| Gaddummit vs Claudio | 5–15 | 25.00% |
| Gaddummit vs Asuka | 5–14 | 26.32% |
| Gaddummit vs Heihachi | 6–13 | 31.58% |
| Gaddummit vs Nina | 10–8 | 55.56% |
| Gaddummit vs Law | 9–8 | 52.94% |
| Gaddummit vs Jun | 3–13 | 18.75% |
| Gaddummit vs Paul | 5–10 | 33.33% |
| Gaddummit vs Lee | 7–7 | 50.00% |
| Gaddummit vs Xiaoyu | 3–9 | 25.00% |
| Gaddummit vs Lars | 5–7 | 41.67% |
| Gaddummit vs Victor | 5–7 | 41.67% |
| Gaddummit vs Feng | 4–7 | 36.36% |
| Gaddummit vs Leo | 1–9 | 10.00% |
| Gaddummit vs Jack-8 | 4–5 | 44.44% |
| Gaddummit vs Kuma | 0–8 | 0.00% |
| Gaddummit vs Shaheen | 3–4 | 42.86% |
| Gaddummit vs Leroy | 6–0 | 100.00% |
| Gaddummit vs Raven | 2–4 | 33.33% |
| Gaddummit vs Lidia | 3–2 | 60.00% |
| Gaddummit vs Zafina | 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.