| Sheldon vs Steve | 12–24 | 33.33% |
| Sheldon vs King | 9–20 | 31.03% |
| Sheldon vs Kazuya | 10–19 | 34.48% |
| Sheldon vs Reina | 14–14 | 50.00% |
| Sheldon vs Jin | 8–18 | 30.77% |
| Sheldon vs Law | 7–16 | 30.43% |
| Sheldon vs Hwoarang | 5–17 | 22.73% |
| Sheldon vs Lili | 6–16 | 27.27% |
| Sheldon vs Paul | 6–15 | 28.57% |
| Sheldon vs Nina | 10–9 | 52.63% |
| Sheldon vs Bryan | 3–15 | 16.67% |
| Sheldon vs Devil Jin | 8–9 | 47.06% |
| Sheldon vs Clive | 4–13 | 23.53% |
| Sheldon vs Dragunov | 9–7 | 56.25% |
| Sheldon vs Azucena | 2–14 | 12.50% |
| Sheldon vs Asuka | 7–7 | 50.00% |
| Sheldon vs Lars | 5–9 | 35.71% |
| Sheldon vs Leroy | 4–8 | 33.33% |
| Sheldon vs Lee | 4–7 | 36.36% |
| Sheldon vs Heihachi | 1–9 | 10.00% |
| Sheldon vs Victor | 6–3 | 66.67% |
| Sheldon vs Anna | 3–6 | 33.33% |
| Sheldon vs Claudio | 3–5 | 37.50% |
| Sheldon vs Alisa | 1–6 | 14.29% |
| Sheldon vs Panda | 2–5 | 28.57% |
| Sheldon vs Jun | 2–5 | 28.57% |
| Sheldon vs Yoshimitsu | 1–5 | 16.67% |
| Sheldon vs Jack-8 | 1–5 | 16.67% |
| Sheldon vs Feng | 2–4 | 33.33% |
| Sheldon vs Raven | 0–6 | 0.00% |
| Sheldon vs Xiaoyu | 2–3 | 40.00% |
| Sheldon vs Shaheen | 1–4 | 20.00% |
| Sheldon vs Lidia | 0–4 | 0.00% |
| Sheldon vs Eddy | 2–1 | 66.67% |
| Sheldon vs Kuma | 0–2 | 0.00% |
| Sheldon vs Leo | 0–1 | 0.00% |
| Sheldon vs Fahkumram | 0–1 | 0.00% |
| Sheldon vs Armor King | 1–0 | 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.