| Samwell vs Reina | 9–15 | 37.50% |
| Samwell vs Azucena | 6–16 | 27.27% |
| Samwell vs Jin | 5–12 | 29.41% |
| Samwell vs Leo | 7–9 | 43.75% |
| Samwell vs Victor | 10–6 | 62.50% |
| Samwell vs King | 9–6 | 60.00% |
| Samwell vs Eddy | 7–8 | 46.67% |
| Samwell vs Law | 8–6 | 57.14% |
| Samwell vs Kazuya | 10–4 | 71.43% |
| Samwell vs Dragunov | 2–12 | 14.29% |
| Samwell vs Nina | 7–6 | 53.85% |
| Samwell vs Bryan | 5–6 | 45.45% |
| Samwell vs Asuka | 7–4 | 63.64% |
| Samwell vs Lars | 1–10 | 9.09% |
| Samwell vs Heihachi | 6–5 | 54.55% |
| Samwell vs Hwoarang | 9–1 | 90.00% |
| Samwell vs Lee | 6–4 | 60.00% |
| Samwell vs Panda | 8–2 | 80.00% |
| Samwell vs Yoshimitsu | 3–6 | 33.33% |
| Samwell vs Xiaoyu | 5–4 | 55.56% |
| Samwell vs Feng | 6–3 | 66.67% |
| Samwell vs Lili | 3–6 | 33.33% |
| Samwell vs Alisa | 6–3 | 66.67% |
| Samwell vs Devil Jin | 0–8 | 0.00% |
| Samwell vs Jun | 4–4 | 50.00% |
| Samwell vs Steve | 6–1 | 85.71% |
| Samwell vs Raven | 3–2 | 60.00% |
| Samwell vs Jack-8 | 2–2 | 50.00% |
| Samwell vs Kuma | 0–4 | 0.00% |
| Samwell vs Lidia | 0–4 | 0.00% |
| Samwell vs Claudio | 2–1 | 66.67% |
| Samwell vs Paul | 0–2 | 0.00% |
| Samwell vs Zafina | 2–0 | 100.00% |
| Samwell vs Leroy | 0–2 | 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.