| Mainless vs Kazuya | 16–11 | 59.26% |
| Mainless vs Bryan | 20–5 | 80.00% |
| Mainless vs Steve | 18–6 | 75.00% |
| Mainless vs Lili | 16–6 | 72.73% |
| Mainless vs Law | 11–10 | 52.38% |
| Mainless vs Victor | 18–3 | 85.71% |
| Mainless vs Jin | 16–4 | 80.00% |
| Mainless vs Lars | 11–8 | 57.89% |
| Mainless vs Reina | 14–4 | 77.78% |
| Mainless vs Armor King | 13–5 | 72.22% |
| Mainless vs Hwoarang | 8–9 | 47.06% |
| Mainless vs Devil Jin | 8–6 | 57.14% |
| Mainless vs Dragunov | 10–4 | 71.43% |
| Mainless vs Shaheen | 7–5 | 58.33% |
| Mainless vs Yoshimitsu | 9–1 | 90.00% |
| Mainless vs Asuka | 7–3 | 70.00% |
| Mainless vs Alisa | 9–0 | 100.00% |
| Mainless vs Clive | 8–1 | 88.89% |
| Mainless vs Lee | 5–3 | 62.50% |
| Mainless vs Miary Zo | 4–4 | 50.00% |
| Mainless vs Fahkumram | 7–0 | 100.00% |
| Mainless vs King | 0–6 | 0.00% |
| Mainless vs Lidia | 2–4 | 33.33% |
| Mainless vs Jack-8 | 1–4 | 20.00% |
| Mainless vs Leroy | 3–2 | 60.00% |
| Mainless vs Nina | 0–4 | 0.00% |
| Mainless vs Eddy | 3–1 | 75.00% |
| Mainless vs Paul | 2–1 | 66.67% |
| Mainless vs Leo | 2–1 | 66.67% |
| Mainless vs Azucena | 3–0 | 100.00% |
| Mainless vs Anna | 2–1 | 66.67% |
| Mainless vs Feng | 2–0 | 100.00% |
| Mainless vs Claudio | 0–2 | 0.00% |
| Mainless vs Panda | 2–0 | 100.00% |
| Mainless vs Xiaoyu | 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.