| JSS|Koonsik Jim vs Bryan | 246–165 | 59.85% |
| JSS|Koonsik Jim vs Kazuya | 191–134 | 58.77% |
| JSS|Koonsik Jim vs Jin | 198–109 | 64.50% |
| JSS|Koonsik Jim vs Reina | 171–92 | 65.02% |
| JSS|Koonsik Jim vs King | 153–107 | 58.85% |
| JSS|Koonsik Jim vs Heihachi | 158–92 | 63.20% |
| JSS|Koonsik Jim vs Hwoarang | 122–95 | 56.22% |
| JSS|Koonsik Jim vs Law | 122–94 | 56.48% |
| JSS|Koonsik Jim vs Devil Jin | 134–72 | 65.05% |
| JSS|Koonsik Jim vs Steve | 100–102 | 49.50% |
| JSS|Koonsik Jim vs Yoshimitsu | 123–75 | 62.12% |
| JSS|Koonsik Jim vs Lee | 99–83 | 54.40% |
| JSS|Koonsik Jim vs Lili | 91–88 | 50.84% |
| JSS|Koonsik Jim vs Jun | 101–74 | 57.71% |
| JSS|Koonsik Jim vs Dragunov | 80–93 | 46.24% |
| JSS|Koonsik Jim vs Armor King | 94–76 | 55.29% |
| JSS|Koonsik Jim vs Azucena | 98–51 | 65.77% |
| JSS|Koonsik Jim vs Jack-8 | 100–47 | 68.03% |
| JSS|Koonsik Jim vs Lars | 63–80 | 44.06% |
| JSS|Koonsik Jim vs Asuka | 62–64 | 49.21% |
| JSS|Koonsik Jim vs Paul | 73–51 | 58.87% |
| JSS|Koonsik Jim vs Nina | 60–63 | 48.78% |
| JSS|Koonsik Jim vs Xiaoyu | 72–42 | 63.16% |
| JSS|Koonsik Jim vs Clive | 67–41 | 62.04% |
| JSS|Koonsik Jim vs Victor | 59–45 | 56.73% |
| JSS|Koonsik Jim vs Leroy | 49–47 | 51.04% |
| JSS|Koonsik Jim vs Fahkumram | 55–38 | 59.14% |
| JSS|Koonsik Jim vs Feng | 49–41 | 54.44% |
| JSS|Koonsik Jim vs Alisa | 32–55 | 36.78% |
| JSS|Koonsik Jim vs Claudio | 43–44 | 49.43% |
| JSS|Koonsik Jim vs Miary Zo | 51–36 | 58.62% |
| JSS|Koonsik Jim vs Lidia | 36–48 | 42.86% |
| JSS|Koonsik Jim vs Kuma | 48–26 | 64.86% |
| JSS|Koonsik Jim vs Raven | 39–33 | 54.17% |
| JSS|Koonsik Jim vs Eddy | 44–25 | 63.77% |
| JSS|Koonsik Jim vs Leo | 34–32 | 51.52% |
| JSS|Koonsik Jim vs Zafina | 24–25 | 48.98% |
| JSS|Koonsik Jim vs Anna | 23–24 | 48.94% |
| JSS|Koonsik Jim vs Shaheen | 28–16 | 63.64% |
| JSS|Koonsik Jim vs Panda | 18–11 | 62.07% |
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.