| Ir0nSm4ck99 vs Kazuya | 98–131–1 | 42.79% |
| Ir0nSm4ck99 vs Jin | 108–111 | 49.32% |
| Ir0nSm4ck99 vs King | 79–131 | 37.62% |
| Ir0nSm4ck99 vs Law | 82–99 | 45.30% |
| Ir0nSm4ck99 vs Hwoarang | 73–99 | 42.44% |
| Ir0nSm4ck99 vs Reina | 70–76 | 47.95% |
| Ir0nSm4ck99 vs Bryan | 61–84 | 42.07% |
| Ir0nSm4ck99 vs Steve | 64–51 | 55.65% |
| Ir0nSm4ck99 vs Eddy | 39–75 | 34.21% |
| Ir0nSm4ck99 vs Paul | 39–69 | 36.11% |
| Ir0nSm4ck99 vs Lili | 42–65 | 39.25% |
| Ir0nSm4ck99 vs Yoshimitsu | 49–57 | 46.23% |
| Ir0nSm4ck99 vs Dragunov | 41–45 | 47.67% |
| Ir0nSm4ck99 vs Lidia | 43–41 | 51.19% |
| Ir0nSm4ck99 vs Heihachi | 38–46 | 45.24% |
| Ir0nSm4ck99 vs Asuka | 36–45 | 44.44% |
| Ir0nSm4ck99 vs Jun | 30–48 | 38.46% |
| Ir0nSm4ck99 vs Azucena | 31–42 | 42.47% |
| Ir0nSm4ck99 vs Victor | 34–39 | 46.58% |
| Ir0nSm4ck99 vs Xiaoyu | 35–34 | 50.72% |
| Ir0nSm4ck99 vs Feng | 36–33 | 52.17% |
| Ir0nSm4ck99 vs Alisa | 28–33 | 45.90% |
| Ir0nSm4ck99 vs Nina | 23–31 | 42.59% |
| Ir0nSm4ck99 vs Jack-8 | 21–27–1 | 43.75% |
| Ir0nSm4ck99 vs Lee | 22–25 | 46.81% |
| Ir0nSm4ck99 vs Devil Jin | 20–25 | 44.44% |
| Ir0nSm4ck99 vs Leo | 18–23 | 43.90% |
| Ir0nSm4ck99 vs Leroy | 20–21 | 48.78% |
| Ir0nSm4ck99 vs Anna | 16–23 | 41.03% |
| Ir0nSm4ck99 vs Lars | 15–23 | 39.47% |
| Ir0nSm4ck99 vs Claudio | 12–21 | 36.36% |
| Ir0nSm4ck99 vs Raven | 8–20 | 28.57% |
| Ir0nSm4ck99 vs Shaheen | 11–15 | 42.31% |
| Ir0nSm4ck99 vs Clive | 12–14 | 46.15% |
| Ir0nSm4ck99 vs Zafina | 9–10 | 47.37% |
| Ir0nSm4ck99 vs Fahkumram | 10–9 | 52.63% |
| Ir0nSm4ck99 vs Kuma | 2–12 | 14.29% |
| Ir0nSm4ck99 vs Panda | 3–3 | 50.00% |
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.