| Mainless vs Steve | 25–8 | 75.76% |
| Mainless vs King | 10–17 | 37.04% |
| Mainless vs Heihachi | 13–13 | 50.00% |
| Mainless vs Kazuya | 17–8 | 68.00% |
| Mainless vs Bryan | 7–12 | 36.84% |
| Mainless vs Jin | 11–7 | 61.11% |
| Mainless vs Law | 10–6 | 62.50% |
| Mainless vs Lili | 11–4 | 73.33% |
| Mainless vs Dragunov | 7–8 | 46.67% |
| Mainless vs Hwoarang | 10–3 | 76.92% |
| Mainless vs Victor | 8–4 | 66.67% |
| Mainless vs Paul | 5–6 | 45.45% |
| Mainless vs Devil Jin | 6–5 | 54.55% |
| Mainless vs Armor King | 6–4 | 60.00% |
| Mainless vs Nina | 5–4 | 55.56% |
| Mainless vs Lidia | 5–4 | 55.56% |
| Mainless vs Anna | 7–2 | 77.78% |
| Mainless vs Eddy | 7–1 | 87.50% |
| Mainless vs Yoshimitsu | 3–4 | 42.86% |
| Mainless vs Asuka | 3–4 | 42.86% |
| Mainless vs Reina | 4–3 | 57.14% |
| Mainless vs Lars | 4–2 | 66.67% |
| Mainless vs Jun | 4–2 | 66.67% |
| Mainless vs Xiaoyu | 3–2 | 60.00% |
| Mainless vs Claudio | 3–2 | 60.00% |
| Mainless vs Lee | 1–4 | 20.00% |
| Mainless vs Kuma | 5–0 | 100.00% |
| Mainless vs Alisa | 2–2 | 50.00% |
| Mainless vs Leroy | 4–0 | 100.00% |
| Mainless vs Azucena | 3–1 | 75.00% |
| Mainless vs Raven | 3–1 | 75.00% |
| Mainless vs Fahkumram | 2–2 | 50.00% |
| Mainless vs Jack-8 | 2–1 | 66.67% |
| Mainless vs Leo | 3–0 | 100.00% |
| Mainless vs Shaheen | 1–1 | 50.00% |
| Mainless vs Panda | 2–0 | 100.00% |
| Mainless vs Clive | 0–1 | 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.