| Slughorn vs King | 22–21 | 51.16% |
| Slughorn vs Jin | 18–25 | 41.86% |
| Slughorn vs Hwoarang | 15–16 | 48.39% |
| Slughorn vs Steve | 16–15 | 51.61% |
| Slughorn vs Yoshimitsu | 12–14 | 46.15% |
| Slughorn vs Kazuya | 9–15 | 37.50% |
| Slughorn vs Law | 8–11 | 42.11% |
| Slughorn vs Alisa | 13–6 | 68.42% |
| Slughorn vs Fahkumram | 9–10 | 47.37% |
| Slughorn vs Reina | 10–8 | 55.56% |
| Slughorn vs Azucena | 8–9 | 47.06% |
| Slughorn vs Victor | 9–6 | 60.00% |
| Slughorn vs Bryan | 11–3 | 78.57% |
| Slughorn vs Asuka | 9–4 | 69.23% |
| Slughorn vs Paul | 8–4 | 66.67% |
| Slughorn vs Dragunov | 6–6 | 50.00% |
| Slughorn vs Heihachi | 6–6 | 50.00% |
| Slughorn vs Eddy | 7–4 | 63.64% |
| Slughorn vs Nina | 9–1 | 90.00% |
| Slughorn vs Jun | 6–4 | 60.00% |
| Slughorn vs Lili | 4–4 | 50.00% |
| Slughorn vs Feng | 4–3 | 57.14% |
| Slughorn vs Devil Jin | 2–4 | 33.33% |
| Slughorn vs Leo | 2–4 | 33.33% |
| Slughorn vs Lars | 4–2 | 66.67% |
| Slughorn vs Lee | 2–4 | 33.33% |
| Slughorn vs Raven | 2–4 | 33.33% |
| Slughorn vs Jack-8 | 1–4 | 20.00% |
| Slughorn vs Claudio | 2–3 | 40.00% |
| Slughorn vs Kuma | 1–3 | 25.00% |
| Slughorn vs Lidia | 1–2 | 33.33% |
| Slughorn vs Xiaoyu | 2–0 | 100.00% |
| Slughorn vs Panda | 2–0 | 100.00% |
| Slughorn vs Leroy | 0–2 | 0.00% |
| Slughorn vs Clive | 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.