| Irn_Bru_Dude21 vs Jin | 135–128 | 51.33% |
| Irn_Bru_Dude21 vs King | 89–95 | 48.37% |
| Irn_Bru_Dude21 vs Hwoarang | 71–99 | 41.76% |
| Irn_Bru_Dude21 vs Kazuya | 66–101 | 39.52% |
| Irn_Bru_Dude21 vs Law | 82–80 | 50.62% |
| Irn_Bru_Dude21 vs Bryan | 68–77–1 | 46.90% |
| Irn_Bru_Dude21 vs Steve | 61–51 | 54.46% |
| Irn_Bru_Dude21 vs Reina | 46–47 | 49.46% |
| Irn_Bru_Dude21 vs Eddy | 45–47 | 48.91% |
| Irn_Bru_Dude21 vs Yoshimitsu | 29–57 | 33.72% |
| Irn_Bru_Dude21 vs Dragunov | 41–45 | 47.67% |
| Irn_Bru_Dude21 vs Asuka | 36–39 | 48.00% |
| Irn_Bru_Dude21 vs Nina | 29–46 | 38.67% |
| Irn_Bru_Dude21 vs Jun | 29–43 | 40.28% |
| Irn_Bru_Dude21 vs Lili | 24–47 | 33.80% |
| Irn_Bru_Dude21 vs Devil Jin | 30–37 | 44.78% |
| Irn_Bru_Dude21 vs Victor | 22–36 | 37.93% |
| Irn_Bru_Dude21 vs Paul | 18–39 | 31.58% |
| Irn_Bru_Dude21 vs Heihachi | 25–32 | 43.86% |
| Irn_Bru_Dude21 vs Xiaoyu | 16–40 | 28.57% |
| Irn_Bru_Dude21 vs Lars | 28–27 | 50.91% |
| Irn_Bru_Dude21 vs Armor King | 20–35 | 36.36% |
| Irn_Bru_Dude21 vs Azucena | 22–28 | 44.00% |
| Irn_Bru_Dude21 vs Clive | 20–26 | 43.48% |
| Irn_Bru_Dude21 vs Leroy | 14–28 | 33.33% |
| Irn_Bru_Dude21 vs Alisa | 17–18 | 48.57% |
| Irn_Bru_Dude21 vs Feng | 12–20 | 37.50% |
| Irn_Bru_Dude21 vs Miary Zo | 16–15 | 51.61% |
| Irn_Bru_Dude21 vs Lee | 7–23 | 23.33% |
| Irn_Bru_Dude21 vs Lidia | 8–18 | 30.77% |
| Irn_Bru_Dude21 vs Fahkumram | 8–17 | 32.00% |
| Irn_Bru_Dude21 vs Jack-8 | 12–12 | 50.00% |
| Irn_Bru_Dude21 vs Claudio | 9–13 | 40.91% |
| Irn_Bru_Dude21 vs Raven | 10–11 | 47.62% |
| Irn_Bru_Dude21 vs Leo | 8–11 | 42.11% |
| Irn_Bru_Dude21 vs Kuma | 12–7 | 63.16% |
| Irn_Bru_Dude21 vs Shaheen | 6–12 | 33.33% |
| Irn_Bru_Dude21 vs Zafina | 5–8 | 38.46% |
| Irn_Bru_Dude21 vs Anna | 2–8 | 20.00% |
| Irn_Bru_Dude21 vs Panda | 3–4 | 42.86% |
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.