| S_Sandman vs Kazuya | 46–63 | 42.20% |
| S_Sandman vs Reina | 60–42 | 58.82% |
| S_Sandman vs Steve | 53–36 | 59.55% |
| S_Sandman vs King | 39–43 | 47.56% |
| S_Sandman vs Jin | 41–41 | 50.00% |
| S_Sandman vs Dragunov | 28–50 | 35.90% |
| S_Sandman vs Asuka | 37–35 | 51.39% |
| S_Sandman vs Eddy | 24–48 | 33.33% |
| S_Sandman vs Lili | 31–37 | 45.59% |
| S_Sandman vs Bryan | 28–37 | 43.08% |
| S_Sandman vs Paul | 25–36 | 40.98% |
| S_Sandman vs Hwoarang | 21–27 | 43.75% |
| S_Sandman vs Devil Jin | 25–23 | 52.08% |
| S_Sandman vs Jun | 21–26 | 44.68% |
| S_Sandman vs Law | 18–25 | 41.86% |
| S_Sandman vs Azucena | 24–17 | 58.54% |
| S_Sandman vs Nina | 17–20 | 45.95% |
| S_Sandman vs Xiaoyu | 8–21 | 27.59% |
| S_Sandman vs Claudio | 9–19 | 32.14% |
| S_Sandman vs Lars | 5–20 | 20.00% |
| S_Sandman vs Feng | 6–17 | 26.09% |
| S_Sandman vs Jack-8 | 6–15 | 28.57% |
| S_Sandman vs Alisa | 7–14 | 33.33% |
| S_Sandman vs Lee | 9–12 | 42.86% |
| S_Sandman vs Yoshimitsu | 11–8 | 57.89% |
| S_Sandman vs Victor | 10–8 | 55.56% |
| S_Sandman vs Leo | 6–11 | 35.29% |
| S_Sandman vs Leroy | 10–7 | 58.82% |
| S_Sandman vs Kuma | 5–10 | 33.33% |
| S_Sandman vs Zafina | 9–6 | 60.00% |
| S_Sandman vs Raven | 4–10 | 28.57% |
| S_Sandman vs Shaheen | 6–5 | 54.55% |
| S_Sandman vs Panda | 3–4 | 42.86% |
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.