John Piekarski
| Round | Rating | Date |
|---|---|---|
| KPLeagues Tuesday Spring 2024 Week 1 | 914 | 04-09-2024 |
| KP Tuesday Winter 2024 Week 7 | 886 | 02-13-2024 |
| KP Tuesday Fall 2023 Week 4 | 767 | 09-12-2023 |
| KP Tuesday Summer 2023 Week 5 | 746 | 07-11-2023 |
| KP Tuesday Summer 2023 Week 4 | 784 | 07-04-2023 |
| KP Tuesday Summer 2023 Week 2 | 866 | 06-20-2023 |
| KP Tuesday Spring 2023 Week 7 | 728 | 05-16-2023 |
| KP Tuesday Spring 2023 Week 6 | 836 | 05-09-2023 |