| IRON-NIGG vs King | 200–236 | 45.87% |
| IRON-NIGG vs Kazuya | 234–201 | 53.79% |
| IRON-NIGG vs Jin | 205–202 | 50.37% |
| IRON-NIGG vs Law | 167–199 | 45.63% |
| IRON-NIGG vs Hwoarang | 160–170 | 48.48% |
| IRON-NIGG vs Bryan | 177–149 | 54.29% |
| IRON-NIGG vs Steve | 164–141 | 53.77% |
| IRON-NIGG vs Reina | 173–112 | 60.70% |
| IRON-NIGG vs Paul | 116–156 | 42.65% |
| IRON-NIGG vs Yoshimitsu | 92–146 | 38.66% |
| IRON-NIGG vs Dragunov | 106–107 | 49.77% |
| IRON-NIGG vs Lili | 96–110 | 46.60% |
| IRON-NIGG vs Lars | 111–92 | 54.68% |
| IRON-NIGG vs Jun | 97–103 | 48.50% |
| IRON-NIGG vs Eddy | 85–113 | 42.93% |
| IRON-NIGG vs Azucena | 104–93 | 52.79% |
| IRON-NIGG vs Asuka | 79–97 | 44.89% |
| IRON-NIGG vs Lidia | 90–84 | 51.72% |
| IRON-NIGG vs Victor | 73–92 | 44.24% |
| IRON-NIGG vs Xiaoyu | 67–97 | 40.85% |
| IRON-NIGG vs Nina | 75–85 | 46.88% |
| IRON-NIGG vs Lee | 81–78 | 50.94% |
| IRON-NIGG vs Feng | 65–90 | 41.94% |
| IRON-NIGG vs Leroy | 77–74 | 50.99% |
| IRON-NIGG vs Raven | 48–102 | 32.00% |
| IRON-NIGG vs Leo | 76–72 | 51.35% |
| IRON-NIGG vs Alisa | 44–91 | 32.59% |
| IRON-NIGG vs Jack-8 | 60–71 | 45.80% |
| IRON-NIGG vs Devil Jin | 53–69 | 43.44% |
| IRON-NIGG vs Heihachi | 44–56 | 44.00% |
| IRON-NIGG vs Claudio | 36–40 | 47.37% |
| IRON-NIGG vs Clive | 25–35 | 41.67% |
| IRON-NIGG vs Anna | 28–27 | 50.91% |
| IRON-NIGG vs Kuma | 13–39 | 25.00% |
| IRON-NIGG vs Shaheen | 22–28 | 44.00% |
| IRON-NIGG vs Zafina | 13–31 | 29.55% |
| IRON-NIGG vs Fahkumram | 16–8 | 66.67% |
| IRON-NIGG vs Panda | 2–20 | 9.09% |
| IRON-NIGG vs Armor King | 0–2 | 0.00% |
| IRON-NIGG 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.