| GunDemon 99 vs King | 108–61 | 63.91% |
| GunDemon 99 vs Jin | 79–59 | 57.25% |
| GunDemon 99 vs Yoshimitsu | 67–70 | 48.91% |
| GunDemon 99 vs Hwoarang | 76–49 | 60.80% |
| GunDemon 99 vs Xiaoyu | 70–47 | 59.83% |
| GunDemon 99 vs Dragunov | 61–56 | 52.14% |
| GunDemon 99 vs Bryan | 61–55 | 52.59% |
| GunDemon 99 vs Kazuya | 67–48 | 58.26% |
| GunDemon 99 vs Reina | 61–52 | 53.98% |
| GunDemon 99 vs Law | 69–43 | 61.61% |
| GunDemon 99 vs Steve | 57–54 | 51.35% |
| GunDemon 99 vs Lars | 46–64 | 41.82% |
| GunDemon 99 vs Lili | 51–43 | 54.26% |
| GunDemon 99 vs Paul | 56–32 | 63.64% |
| GunDemon 99 vs Nina | 38–49 | 43.68% |
| GunDemon 99 vs Lee | 36–37 | 49.32% |
| GunDemon 99 vs Devil Jin | 33–38 | 46.48% |
| GunDemon 99 vs Jun | 37–31 | 54.41% |
| GunDemon 99 vs Feng | 39–28 | 58.21% |
| GunDemon 99 vs Asuka | 28–38 | 42.42% |
| GunDemon 99 vs Victor | 29–33 | 46.77% |
| GunDemon 99 vs Raven | 38–24 | 61.29% |
| GunDemon 99 vs Eddy | 26–36 | 41.94% |
| GunDemon 99 vs Leo | 28–30 | 48.28% |
| GunDemon 99 vs Zafina | 29–27 | 51.79% |
| GunDemon 99 vs Azucena | 23–30 | 43.40% |
| GunDemon 99 vs Lidia | 18–31 | 36.73% |
| GunDemon 99 vs Leroy | 28–20 | 58.33% |
| GunDemon 99 vs Jack-8 | 17–24 | 41.46% |
| GunDemon 99 vs Kuma | 22–19 | 53.66% |
| GunDemon 99 vs Alisa | 20–15 | 57.14% |
| GunDemon 99 vs Shaheen | 17–12 | 58.62% |
| GunDemon 99 vs Heihachi | 11–15 | 42.31% |
| GunDemon 99 vs Claudio | 12–13 | 48.00% |
| GunDemon 99 vs Clive | 6–12 | 33.33% |
| GunDemon 99 vs Panda | 4–10 | 28.57% |
| GunDemon 99 vs Fahkumram | 6–6 | 50.00% |
| GunDemon 99 vs Anna | 1–8 | 11.11% |
| GunDemon 99 vs Miary Zo | 3–3 | 50.00% |
| GunDemon 99 vs Armor King | 2–0 | 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.