Jonathan Koch #91854
Jonathan Koch #91854
Player Info
- Location: Grand Rapids, Michigan, United States
- Classification: Amateur
- Member Since: 2017
- Membership Status: Expired (as of 31-Dec-2021)
- Official Status: Uncertified
- Career Events: 8
Ratings History
| Effective Date | Rating | Rounds Used |
|---|---|---|
| 13-Jul-2021 | 891 | 4 |
| 19-Mar-2019 | 839 | 11 |
| 30-Oct-2018 | 817 | 9 |
| 11-Sep-2018 | 835 | 7 |
| 31-Jul-2018 | 819 | 8 |
| 22-May-2018 | 785 | 6 |
| 27-Jun-2017 | 746 | 3 |