Research & Reports
Team Records
Chicago cubiebears : ERA
| Team | Season | ERA |
| Chicago cubiebears | 132 | 4.069 |
| Chicago cubiebears | 127 | 4.266 |
| Chicago cubiebears | 123 | 4.346 |
| Chicago cubiebears | 128 | 4.349 |
| Chicago cubiebears | 125 | 4.365 |
| Chicago cubiebears | 129 | 4.433 |
| Chicago cubiebears | 126 | 4.509 |
| Chicago cubiebears | 130 | 4.525 |
| Chicago cubiebears | 124 | 4.652 |
| Chicago cubiebears | 131 | 5.421 |
