| Leeham vs Jin | 93–71 | 56.71% |
| Leeham vs Steve | 93–32 | 74.40% |
| Leeham vs Law | 69–55 | 55.65% |
| Leeham vs King | 83–40 | 67.48% |
| Leeham vs Kazuya | 56–62 | 47.46% |
| Leeham vs Armor King | 54–53 | 50.47% |
| Leeham vs Hwoarang | 62–31 | 66.67% |
| Leeham vs Bryan | 47–36 | 56.63% |
| Leeham vs Dragunov | 33–37 | 47.14% |
| Leeham vs Heihachi | 23–39 | 37.10% |
| Leeham vs Reina | 31–28 | 52.54% |
| Leeham vs Azucena | 28–28 | 50.00% |
| Leeham vs Fahkumram | 23–31 | 42.59% |
| Leeham vs Devil Jin | 35–15 | 70.00% |
| Leeham vs Paul | 19–30 | 38.78% |
| Leeham vs Eddy | 13–35 | 27.08% |
| Leeham vs Nina | 21–25 | 45.65% |
| Leeham vs Xiaoyu | 23–22 | 51.11% |
| Leeham vs Asuka | 26–19 | 57.78% |
| Leeham vs Anna | 21–24 | 46.67% |
| Leeham vs Lili | 22–22 | 50.00% |
| Leeham vs Yoshimitsu | 25–18 | 58.14% |
| Leeham vs Jun | 20–23 | 46.51% |
| Leeham vs Victor | 28–14 | 66.67% |
| Leeham vs Clive | 26–16 | 61.90% |
| Leeham vs Lars | 17–16 | 51.52% |
| Leeham vs Miary Zo | 16–15 | 51.61% |
| Leeham vs Lidia | 12–17 | 41.38% |
| Leeham vs Lee | 15–13 | 53.57% |
| Leeham vs Alisa | 8–19 | 29.63% |
| Leeham vs Feng | 3–21 | 12.50% |
| Leeham vs Jack-8 | 14–9 | 60.87% |
| Leeham vs Leo | 10–13 | 43.48% |
| Leeham vs Zafina | 10–12 | 45.45% |
| Leeham vs Leroy | 10–10 | 50.00% |
| Leeham vs Kuma | 10–9 | 52.63% |
| Leeham vs Claudio | 7–10 | 41.18% |
| Leeham vs Shaheen | 3–7 | 30.00% |
| Leeham vs Raven | 5–5 | 50.00% |
| Leeham vs Panda | 2–4 | 33.33% |
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.