| Sharps Lane | 0.46 mi | -30 ft | -1.1% |
| Breakspear Climb | 1.48 mi | 128 ft | 1.5% |
| Ramp into Harefield | 0.64 mi | 98 ft | 2.6% |
| Breakspear Rise | 0.20 mi | 82 ft | 7.5% |
| Harefield Pub Descent | 0.64 mi | -141 ft | -4.1% |
| Moorhall Road South-West | 0.97 mi | -23 ft | -0.4% |
| new segment | 4.96 mi | 217 ft | 0.8% |
| Higher Denham TT | 7.37 mi | 233 ft | 0.1% |
| Denham / Chalfont Common | 3.55 mi | 194 ft | 0.9% |
| Denham to Nockhill Wood | 1.54 mi | 177 ft | 2.2% |
| Slade Oak Ln Climb from railway bridge. | 0.64 mi | 89 ft | 2.6% |
| Denham/Chesham Lane | 1.60 mi | 33 ft | 0.3% |
| OLD VERSION - Drop In To Maple Cross - Smooth Through The Corners | 1.35 mi | -167 ft | -1.9% |
| Mt Pleasant - Copper Mill -> Park Lane -> Harefield | 1.47 mi | 164 ft | 1.9% |
| ***Coy Climb*** | 0.67 mi | 148 ft | 4.1% |
| Mt Pleasant Climb | 0.21 mi | 62 ft | 5.4% |
| Park Lane Climb | 0.59 mi | 157 ft | 5.0% |
| Harefield to Ruislip Common Descent | 2.74 mi | -154 ft | -0.9% |
| Spotted Dog Pub to Fine Bush Lane | 1.81 mi | -131 ft | -1.4% |
| Descent from Harefield | 0.99 mi | -59 ft | -0.9% |
| Breakspear and break-neck speed! | 0.34 mi | -112 ft | -6.2% |
| Chinese Elvis (reverse) | 0.22 mi | -16 ft | -0.9% |
| West End Road Downhill | 0.65 mi | -33 ft | -0.8% |
