| RummThormornin vs Kazuya | 79–48 | 62.20% |
| RummThormornin vs Jin | 63–27 | 70.00% |
| RummThormornin vs King | 49–27 | 64.47% |
| RummThormornin vs Reina | 44–32 | 57.89% |
| RummThormornin vs Bryan | 51–18 | 73.91% |
| RummThormornin vs Hwoarang | 36–22 | 62.07% |
| RummThormornin vs Lee | 35–18 | 66.04% |
| RummThormornin vs Steve | 29–17 | 63.04% |
| RummThormornin vs Paul | 30–15 | 66.67% |
| RummThormornin vs Dragunov | 22–22 | 50.00% |
| RummThormornin vs Yoshimitsu | 28–14 | 66.67% |
| RummThormornin vs Jun | 22–16 | 57.89% |
| RummThormornin vs Clive | 23–13 | 63.89% |
| RummThormornin vs Law | 20–13 | 60.61% |
| RummThormornin vs Devil Jin | 19–14 | 57.58% |
| RummThormornin vs Feng | 26–7 | 78.79% |
| RummThormornin vs Lili | 22–11 | 66.67% |
| RummThormornin vs Heihachi | 27–6 | 81.82% |
| RummThormornin vs Lars | 23–9 | 71.88% |
| RummThormornin vs Asuka | 17–11 | 60.71% |
| RummThormornin vs Alisa | 13–15 | 46.43% |
| RummThormornin vs Nina | 15–13 | 53.57% |
| RummThormornin vs Azucena | 19–9 | 67.86% |
| RummThormornin vs Xiaoyu | 17–9 | 65.38% |
| RummThormornin vs Victor | 16–10 | 61.54% |
| RummThormornin vs Eddy | 13–12–1 | 52.00% |
| RummThormornin vs Jack-8 | 12–13 | 48.00% |
| RummThormornin vs Raven | 16–8 | 66.67% |
| RummThormornin vs Armor King | 19–5 | 79.17% |
| RummThormornin vs Leo | 9–12 | 42.86% |
| RummThormornin vs Leroy | 10–8 | 55.56% |
| RummThormornin vs Claudio | 3–8 | 27.27% |
| RummThormornin vs Kuma | 8–3 | 72.73% |
| RummThormornin vs Zafina | 8–3 | 72.73% |
| RummThormornin vs Shaheen | 8–1 | 88.89% |
| RummThormornin vs Panda | 3–6 | 33.33% |
| RummThormornin vs Fahkumram | 7–2 | 77.78% |
| RummThormornin vs Miary Zo | 4–5 | 44.44% |
| RummThormornin vs Anna | 5–1 | 83.33% |
| RummThormornin vs Lidia | 2–1 | 66.67% |
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.