| JaNam-Gundyr vs King | 228–212 | 51.82% |
| JaNam-Gundyr vs Victor | 118–134 | 46.83% |
| JaNam-Gundyr vs Hwoarang | 152–98–1 | 60.80% |
| JaNam-Gundyr vs Bryan | 154–84 | 64.71% |
| JaNam-Gundyr vs Dragunov | 118–119 | 49.79% |
| JaNam-Gundyr vs Jin | 130–104–1 | 55.56% |
| JaNam-Gundyr vs Kazuya | 157–76–1 | 67.38% |
| JaNam-Gundyr vs Lee | 121–73 | 62.37% |
| JaNam-Gundyr vs Devil Jin | 101–89 | 53.16% |
| JaNam-Gundyr vs Lili | 95–87 | 52.20% |
| JaNam-Gundyr vs Leroy | 116–55 | 67.84% |
| JaNam-Gundyr vs Law | 71–84 | 45.81% |
| JaNam-Gundyr vs Nina | 79–74 | 51.63% |
| JaNam-Gundyr vs Yoshimitsu | 61–78–1 | 43.88% |
| JaNam-Gundyr vs Lars | 69–71 | 49.29% |
| JaNam-Gundyr vs Alisa | 77–61 | 55.80% |
| JaNam-Gundyr vs Raven | 67–71 | 48.55% |
| JaNam-Gundyr vs Paul | 91–44 | 67.41% |
| JaNam-Gundyr vs Heihachi | 72–61 | 54.14% |
| JaNam-Gundyr vs Feng | 66–64 | 50.77% |
| JaNam-Gundyr vs Jun | 64–63 | 50.39% |
| JaNam-Gundyr vs Steve | 79–47 | 62.70% |
| JaNam-Gundyr vs Kuma | 68–57 | 54.40% |
| JaNam-Gundyr vs Azucena | 73–47 | 60.83% |
| JaNam-Gundyr vs Reina | 57–60 | 48.72% |
| JaNam-Gundyr vs Lidia | 56–46–1 | 54.90% |
| JaNam-Gundyr vs Eddy | 44–55 | 44.44% |
| JaNam-Gundyr vs Clive | 37–58 | 38.95% |
| JaNam-Gundyr vs Asuka | 40–36 | 52.63% |
| JaNam-Gundyr vs Zafina | 38–37 | 50.67% |
| JaNam-Gundyr vs Claudio | 36–33 | 52.17% |
| JaNam-Gundyr vs Leo | 34–32 | 51.52% |
| JaNam-Gundyr vs Xiaoyu | 27–37 | 42.19% |
| JaNam-Gundyr vs Jack-8 | 37–26 | 58.73% |
| JaNam-Gundyr vs Anna | 33–28 | 54.10% |
| JaNam-Gundyr vs Shaheen | 35–25 | 58.33% |
| JaNam-Gundyr vs Fahkumram | 35–22 | 61.40% |
| JaNam-Gundyr vs Armor King | 21–20 | 51.22% |
| JaNam-Gundyr vs Miary Zo | 10–22 | 31.25% |
| JaNam-Gundyr vs Panda | 9–15 | 37.50% |
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.