| Mainless vs Jin | 17–41 | 29.31% |
| Mainless vs King | 24–26 | 48.00% |
| Mainless vs Kazuya | 12–26 | 31.58% |
| Mainless vs Dragunov | 19–17 | 52.78% |
| Mainless vs Yoshimitsu | 17–18 | 48.57% |
| Mainless vs Lidia | 20–14 | 58.82% |
| Mainless vs Hwoarang | 16–17 | 48.48% |
| Mainless vs Fahkumram | 13–18 | 41.94% |
| Mainless vs Steve | 18–10 | 64.29% |
| Mainless vs Law | 10–17 | 37.04% |
| Mainless vs Reina | 17–9 | 65.38% |
| Mainless vs Bryan | 3–19 | 13.64% |
| Mainless vs Lili | 13–8 | 61.90% |
| Mainless vs Devil Jin | 6–13 | 31.58% |
| Mainless vs Paul | 13–5 | 72.22% |
| Mainless vs Nina | 10–7 | 58.82% |
| Mainless vs Jack-8 | 10–4 | 71.43% |
| Mainless vs Azucena | 7–7 | 50.00% |
| Mainless vs Xiaoyu | 3–10 | 23.08% |
| Mainless vs Alisa | 6–7 | 46.15% |
| Mainless vs Leroy | 3–9 | 25.00% |
| Mainless vs Eddy | 7–5 | 58.33% |
| Mainless vs Clive | 4–7 | 36.36% |
| Mainless vs Jun | 6–4 | 60.00% |
| Mainless vs Victor | 3–7 | 30.00% |
| Mainless vs Heihachi | 2–8 | 20.00% |
| Mainless vs Anna | 4–5 | 44.44% |
| Mainless vs Feng | 2–6 | 25.00% |
| Mainless vs Lars | 3–4 | 42.86% |
| Mainless vs Lee | 3–3 | 50.00% |
| Mainless vs Raven | 5–1 | 83.33% |
| Mainless vs Leo | 2–3 | 40.00% |
| Mainless vs Shaheen | 3–2 | 60.00% |
| Mainless vs Asuka | 2–2 | 50.00% |
| Mainless vs Claudio | 2–2 | 50.00% |
| Mainless vs Kuma | 0–4 | 0.00% |
| Mainless vs Panda | 2–1 | 66.67% |
| Mainless vs Zafina | 3–0 | 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.