| Sam Mac vs Eddy | 4–30 | 11.76% |
| Sam Mac vs Reina | 15–16 | 48.39% |
| Sam Mac vs Law | 13–16 | 44.83% |
| Sam Mac vs King | 9–19 | 32.14% |
| Sam Mac vs Jin | 4–20 | 16.67% |
| Sam Mac vs Azucena | 11–10 | 52.38% |
| Sam Mac vs Hwoarang | 10–9 | 52.63% |
| Sam Mac vs Lili | 9–8 | 52.94% |
| Sam Mac vs Steve | 6–10 | 37.50% |
| Sam Mac vs Jun | 6–10 | 37.50% |
| Sam Mac vs Xiaoyu | 9–6 | 60.00% |
| Sam Mac vs Paul | 4–10 | 28.57% |
| Sam Mac vs Kazuya | 4–9 | 30.77% |
| Sam Mac vs Dragunov | 4–9 | 30.77% |
| Sam Mac vs Bryan | 4–8 | 33.33% |
| Sam Mac vs Devil Jin | 1–9 | 10.00% |
| Sam Mac vs Victor | 1–9 | 10.00% |
| Sam Mac vs Yoshimitsu | 1–7 | 12.50% |
| Sam Mac vs Lars | 3–5 | 37.50% |
| Sam Mac vs Leo | 4–3 | 57.14% |
| Sam Mac vs Nina | 2–5 | 28.57% |
| Sam Mac vs Clive | 2–5 | 28.57% |
| Sam Mac vs Alisa | 2–4 | 33.33% |
| Sam Mac vs Claudio | 0–5 | 0.00% |
| Sam Mac vs Zafina | 1–4 | 20.00% |
| Sam Mac vs Jack-8 | 0–4 | 0.00% |
| Sam Mac vs Asuka | 2–1 | 66.67% |
| Sam Mac vs Feng | 2–1 | 66.67% |
| Sam Mac vs Lee | 0–3 | 0.00% |
| Sam Mac vs Kuma | 1–2 | 33.33% |
| Sam Mac vs Leroy | 1–2 | 33.33% |
| Sam Mac vs Raven | 1–2 | 33.33% |
| Sam Mac vs Lidia | 2–0 | 100.00% |
| Sam Mac vs Heihachi | 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.