| Map | Name | Difficulty | Time |
|---|
| (Co-op) l4d_airport01_greenhouse | Knox | Expert | 20.95 seconds |
| (Co-op) l4d_airport01_greenhouse | Knox | Normal | 3.08 minutes |
| (Co-op) l4d_airport02_offices | Knox | Expert | 1.95 minutes |
| (Co-op) l4d_airport02_offices | Knox | Advanced | 11.58 minutes |
| (Co-op) l4d_airport02_offices | Knox | Normal | 7.25 minutes |
| (Co-op) l4d_airport03_garage | Knox | Expert | 9.30 minutes |
| (Co-op) l4d_airport04_terminal | Knox | Expert | 6.53 minutes |
| (Co-op) l4d_airport05_runway | Knox | Expert | 5.17 minutes |
| (Co-op) l4d_farm01_hilltop | Knox | Expert | 3.58 minutes |
| (Co-op) l4d_farm02_traintunnel | Knox | Expert | 6.05 minutes |
| (Co-op) l4d_farm03_bridge | Knox | Expert | 6.79 minutes |
| (Co-op) l4d_farm04_barn | Knox | Expert | 3.46 minutes |
| (Co-op) l4d_farm05_cornfield | Knox | Expert | 8.66 minutes |
| (Co-op) l4d_garage01_alleys | Knox | Expert | 14.78 seconds |
| (Co-op) l4d_garage02_lots | Knox | Expert | 12.61 minutes |
| (Co-op) l4d_garage02_lots | Knox | Advanced | 7.89 minutes |
| (Co-op) l4d_hospital01_apartment | Knox | Expert | 2.78 minutes |
| (Co-op) l4d_hospital01_apartment | Knox | Advanced | 2.14 minutes |
| (Co-op) l4d_hospital02_subway | Knox | Expert | 6.76 minutes |
| (Co-op) l4d_hospital02_subway | Knox | Advanced | 6.88 minutes |
| (Co-op) l4d_hospital03_sewers | Knox | Expert | 7.77 minutes |
| (Co-op) l4d_hospital03_sewers | Knox | Advanced | 8.12 minutes |
| (Co-op) l4d_hospital04_interior | Knox | Expert | 5.64 minutes |
| (Co-op) l4d_hospital04_interior | Knox | Advanced | 6.32 minutes |
| (Co-op) l4d_hospital05_rooftop | Knox | Expert | 8.40 minutes |
| (Co-op) l4d_hospital05_rooftop | Knox | Advanced | 7.47 minutes |
| (Co-op) l4d_river01_docks | Knox | Expert | 4.85 seconds |
| (Co-op) l4d_river01_docks | Knox | Expert | 4.85 seconds |
| (Co-op) l4d_river01_docks | Knox | Normal | 2.15 minutes |
| (Co-op) l4d_river01_docks | Knox | Normal | 2.15 minutes |
| (Co-op) l4d_river02_barge | Knox | Expert | 7.19 minutes |
| (Co-op) l4d_river02_barge | Knox | Expert | 7.19 minutes |
| (Co-op) l4d_river02_barge | Knox | Normal | 10.76 minutes |
| (Co-op) l4d_river02_barge | Knox | Normal | 10.76 minutes |
| (Co-op) l4d_river03_port | Knox | Expert | 8.27 minutes |
| (Co-op) l4d_river03_port | Knox | Expert | 8.27 minutes |
| (Co-op) l4d_smalltown01_caves | Knox | Expert | 3.50 minutes |
| (Co-op) l4d_smalltown01_caves | Knox | Advanced | 6.61 minutes |
| (Co-op) l4d_smalltown02_drainage | Knox | Expert | 6.42 minutes |
| (Co-op) l4d_smalltown02_drainage | Knox | Advanced | 6.30 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Knox | Expert | 4.93 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Knox | Expert | 7.05 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Knox | Advanced | 8.00 minutes |
| (Co-op) l4d_smalltown05_houseboat | Knox | Expert | 10.68 minutes |
| (Co-op) l4d_smalltown05_houseboat | Knox | Advanced | 16.75 minutes |