| Ren Kiem vs King | 171–120 | 58.76% |
| Ren Kiem vs Jin | 137–126 | 52.09% |
| Ren Kiem vs Reina | 177–68 | 72.24% |
| Ren Kiem vs Steve | 133–67 | 66.50% |
| Ren Kiem vs Kazuya | 103–86 | 54.50% |
| Ren Kiem vs Law | 73–81 | 47.40% |
| Ren Kiem vs Hwoarang | 71–83 | 46.10% |
| Ren Kiem vs Lili | 80–62 | 56.34% |
| Ren Kiem vs Asuka | 69–70 | 49.64% |
| Ren Kiem vs Jun | 74–61 | 54.81% |
| Ren Kiem vs Eddy | 43–90 | 32.33% |
| Ren Kiem vs Clive | 86–43 | 66.67% |
| Ren Kiem vs Azucena | 78–40 | 66.10% |
| Ren Kiem vs Heihachi | 65–52 | 55.56% |
| Ren Kiem vs Bryan | 49–60 | 44.95% |
| Ren Kiem vs Yoshimitsu | 53–54 | 49.53% |
| Ren Kiem vs Dragunov | 52–48 | 52.00% |
| Ren Kiem vs Nina | 46–50 | 47.92% |
| Ren Kiem vs Lidia | 58–31 | 65.17% |
| Ren Kiem vs Lars | 42–45 | 48.28% |
| Ren Kiem vs Paul | 34–48 | 41.46% |
| Ren Kiem vs Victor | 48–34 | 58.54% |
| Ren Kiem vs Xiaoyu | 45–35 | 56.25% |
| Ren Kiem vs Lee | 43–37 | 53.75% |
| Ren Kiem vs Leo | 47–32 | 59.49% |
| Ren Kiem vs Devil Jin | 29–40 | 42.03% |
| Ren Kiem vs Alisa | 32–37 | 46.38% |
| Ren Kiem vs Kuma | 41–28 | 59.42% |
| Ren Kiem vs Raven | 35–26 | 57.38% |
| Ren Kiem vs Anna | 47–14 | 77.05% |
| Ren Kiem vs Armor King | 38–21 | 64.41% |
| Ren Kiem vs Claudio | 22–28 | 44.00% |
| Ren Kiem vs Leroy | 31–16 | 65.96% |
| Ren Kiem vs Feng | 30–16 | 65.22% |
| Ren Kiem vs Fahkumram | 24–22 | 52.17% |
| Ren Kiem vs Jack-8 | 12–31 | 27.91% |
| Ren Kiem vs Shaheen | 18–17 | 51.43% |
| Ren Kiem vs Zafina | 17–9 | 65.38% |
| Ren Kiem vs Miary Zo | 17–5 | 77.27% |
| Ren Kiem vs Panda | 12–2 | 85.71% |
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.