| Sum_Randum_Guy vs Steve | 35–18 | 66.04% |
| Sum_Randum_Guy vs Law | 23–14 | 62.16% |
| Sum_Randum_Guy vs King | 18–19 | 48.65% |
| Sum_Randum_Guy vs Reina | 16–15 | 51.61% |
| Sum_Randum_Guy vs Alisa | 19–9 | 67.86% |
| Sum_Randum_Guy vs Kazuya | 14–13 | 51.85% |
| Sum_Randum_Guy vs Jin | 6–20 | 23.08% |
| Sum_Randum_Guy vs Bryan | 13–13 | 50.00% |
| Sum_Randum_Guy vs Hwoarang | 18–7 | 72.00% |
| Sum_Randum_Guy vs Dragunov | 16–8 | 66.67% |
| Sum_Randum_Guy vs Jun | 16–8 | 66.67% |
| Sum_Randum_Guy vs Armor King | 15–9 | 62.50% |
| Sum_Randum_Guy vs Miary Zo | 12–11 | 52.17% |
| Sum_Randum_Guy vs Lili | 9–13 | 40.91% |
| Sum_Randum_Guy vs Lidia | 12–10 | 54.55% |
| Sum_Randum_Guy vs Yoshimitsu | 11–7 | 61.11% |
| Sum_Randum_Guy vs Heihachi | 10–8 | 55.56% |
| Sum_Randum_Guy vs Lee | 11–6 | 64.71% |
| Sum_Randum_Guy vs Eddy | 9–8 | 52.94% |
| Sum_Randum_Guy vs Paul | 7–8 | 46.67% |
| Sum_Randum_Guy vs Azucena | 5–9 | 35.71% |
| Sum_Randum_Guy vs Clive | 7–7 | 50.00% |
| Sum_Randum_Guy vs Asuka | 8–5 | 61.54% |
| Sum_Randum_Guy vs Leroy | 5–7 | 41.67% |
| Sum_Randum_Guy vs Anna | 3–9 | 25.00% |
| Sum_Randum_Guy vs Feng | 6–5 | 54.55% |
| Sum_Randum_Guy vs Leo | 5–6 | 45.45% |
| Sum_Randum_Guy vs Lars | 4–7 | 36.36% |
| Sum_Randum_Guy vs Zafina | 1–10 | 9.09% |
| Sum_Randum_Guy vs Fahkumram | 5–4 | 55.56% |
| Sum_Randum_Guy vs Xiaoyu | 5–3 | 62.50% |
| Sum_Randum_Guy vs Nina | 1–7 | 12.50% |
| Sum_Randum_Guy vs Devil Jin | 5–2 | 71.43% |
| Sum_Randum_Guy vs Shaheen | 3–4 | 42.86% |
| Sum_Randum_Guy vs Claudio | 3–3 | 50.00% |
| Sum_Randum_Guy vs Panda | 4–2 | 66.67% |
| Sum_Randum_Guy vs Victor | 3–2 | 60.00% |
| Sum_Randum_Guy vs Kuma | 1–3 | 25.00% |
| Sum_Randum_Guy vs Jack-8 | 3–0 | 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.