| Longson vs Law | 18–23 | 43.90% |
| Longson vs Kazuya | 19–12 | 61.29% |
| Longson vs Dragunov | 12–19 | 38.71% |
| Longson vs Heihachi | 11–14 | 44.00% |
| Longson vs Jin | 6–17 | 26.09% |
| Longson vs Steve | 10–13 | 43.48% |
| Longson vs Paul | 8–13 | 38.10% |
| Longson vs Hwoarang | 8–13 | 38.10% |
| Longson vs Jun | 11–10 | 52.38% |
| Longson vs Bryan | 8–11 | 42.11% |
| Longson vs Feng | 8–11 | 42.11% |
| Longson vs Yoshimitsu | 8–10 | 44.44% |
| Longson vs Asuka | 8–10 | 44.44% |
| Longson vs King | 6–11 | 35.29% |
| Longson vs Alisa | 10–6 | 62.50% |
| Longson vs Lili | 6–9 | 40.00% |
| Longson vs Lee | 9–4 | 69.23% |
| Longson vs Raven | 3–10 | 23.08% |
| Longson vs Armor King | 4–9 | 30.77% |
| Longson vs Anna | 5–7 | 41.67% |
| Longson vs Xiaoyu | 6–5 | 54.55% |
| Longson vs Victor | 2–9 | 18.18% |
| Longson vs Jack-8 | 4–6 | 40.00% |
| Longson vs Clive | 3–7 | 30.00% |
| Longson vs Leroy | 2–7 | 22.22% |
| Longson vs Reina | 4–5 | 44.44% |
| Longson vs Eddy | 3–6 | 33.33% |
| Longson vs Nina | 2–6 | 25.00% |
| Longson vs Azucena | 6–1 | 85.71% |
| Longson vs Leo | 4–2 | 66.67% |
| Longson vs Zafina | 3–3 | 50.00% |
| Longson vs Devil Jin | 1–4 | 20.00% |
| Longson vs Lidia | 4–1 | 80.00% |
| Longson vs Fahkumram | 3–1 | 75.00% |
| Longson vs Panda | 2–1 | 66.67% |
| Longson vs Lars | 1–1 | 50.00% |
| Longson vs Claudio | 2–0 | 100.00% |
| Longson vs Shaheen | 1–0 | 100.00% |
| Longson vs Miary Zo | 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.