| Mcnasty_21 vs Steve | 26–21 | 55.32% |
| Mcnasty_21 vs King | 22–22 | 50.00% |
| Mcnasty_21 vs Eddy | 16–27 | 37.21% |
| Mcnasty_21 vs Heihachi | 24–17 | 58.54% |
| Mcnasty_21 vs Kazuya | 21–19 | 52.50% |
| Mcnasty_21 vs Lili | 19–17 | 52.78% |
| Mcnasty_21 vs Reina | 19–17 | 52.78% |
| Mcnasty_21 vs Dragunov | 20–14 | 58.82% |
| Mcnasty_21 vs Hwoarang | 15–17 | 46.88% |
| Mcnasty_21 vs Jun | 16–8 | 66.67% |
| Mcnasty_21 vs Lidia | 8–16 | 33.33% |
| Mcnasty_21 vs Paul | 10–13 | 43.48% |
| Mcnasty_21 vs Jin | 11–10 | 52.38% |
| Mcnasty_21 vs Bryan | 5–16 | 23.81% |
| Mcnasty_21 vs Lars | 8–13 | 38.10% |
| Mcnasty_21 vs Nina | 7–13 | 35.00% |
| Mcnasty_21 vs Xiaoyu | 12–6 | 66.67% |
| Mcnasty_21 vs Lee | 11–5 | 68.75% |
| Mcnasty_21 vs Victor | 7–9 | 43.75% |
| Mcnasty_21 vs Leroy | 9–6 | 60.00% |
| Mcnasty_21 vs Law | 5–9 | 35.71% |
| Mcnasty_21 vs Yoshimitsu | 2–10 | 16.67% |
| Mcnasty_21 vs Kuma | 8–4 | 66.67% |
| Mcnasty_21 vs Asuka | 9–2 | 81.82% |
| Mcnasty_21 vs Feng | 9–2 | 81.82% |
| Mcnasty_21 vs Azucena | 5–6 | 45.45% |
| Mcnasty_21 vs Clive | 6–5 | 54.55% |
| Mcnasty_21 vs Jack-8 | 4–6 | 40.00% |
| Mcnasty_21 vs Devil Jin | 8–2 | 80.00% |
| Mcnasty_21 vs Raven | 6–4 | 60.00% |
| Mcnasty_21 vs Fahkumram | 5–5 | 50.00% |
| Mcnasty_21 vs Leo | 2–7 | 22.22% |
| Mcnasty_21 vs Zafina | 4–5 | 44.44% |
| Mcnasty_21 vs Alisa | 6–1 | 85.71% |
| Mcnasty_21 vs Anna | 5–2 | 71.43% |
| Mcnasty_21 vs Shaheen | 2–4 | 33.33% |
| Mcnasty_21 vs Claudio | 1–4 | 20.00% |
| Mcnasty_21 vs Panda | 3–1 | 75.00% |
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.