| Chesham Lane Country | 0.87 km | 4 m | 0.0% |
| Denham Ln (from Harefield) to Denham | 5.14 km | -59 m | -1.1% |
| Denham Lane Mile Drag | 1.52 km | -10 m | -0.6% |
| Denham Ln - Nockhill Wood | 1.15 km | -11 m | -0.3% |
| Denham lane Mini Sprint | 0.34 km | -3 m | -0.2% |
| Slade Oak Lane downhill to Higher Denham | 1.94 km | -43 m | -2.2% |
| Denham Golf Club descent | 0.94 km | -21 m | -2.2% |
| Higher Denham - A412 | 0.95 km | -12 m | -1.3% |
| To the bridge | 0.73 km | 7 m | 0.7% |
| Moorfield Road lights to bridge | 1.22 km | -9 m | -0.6% |
| Dogs trust up the Hill | 2.18 km | 26 m | 0.8% |
| EB Harvil Road | 0.95 km | 4 m | 0.2% |
| 2.34 km | 26 m | 0.4% |
| Harvil Road Dash | 1.82 km | 26 m | 1.1% |
| Harvil Rd Climb | 0.62 km | 25 m | 4.1% |
| OLD VERSION - OLD VERSION - Up the bumps | 0.77 km | -15 m | -0.2% |
| Breakspear Rd | 5.75 km | 49 m | 0.6% |
| Junction Sprint | 1.82 km | 12 m | 0.1% |
| Breakspear Sprint to Bridge | 1.03 km | -12 m | -1.2% |
| Breakspear Climb | 2.39 km | 39 m | 1.5% |
| Brakespear rise, just the steep bit! | 0.71 km | 39 m | 5.4% |
| Breakspear Rise | 0.33 km | 25 m | 7.5% |
| Park Lane Descent | 1.53 km | -42 m | -2.7% |
| Park Lane Descent | 0.87 km | -41 m | -4.7% |
| Copper Mill Lane | 0.95 km | 5 m | 0.4% |
| West Hyde mini-climb | 0.15 km | 8 m | 5.0% |
| Cycle Lane TT | 0.89 km | -5 m | -0.3% |
| Chalfont Road climb | 2.64 km | 61 m | 2.3% |
| Chalfont Rd Climb | 1.22 km | 40 m | 3.2% |
| m25 to Deadhearn Lane | 3.06 km | 47 m | 1.5% |
| Brawlings to Nightingales (on Gorelands) | 1.96 km | 11 m | 0.3% |
| Thru CSG | 1.26 km | 36 m | 2.5% |
| High Street @ Warp Speed | 0.41 km | -7 m | -0.1% |
| St Giles to Longbottom | 4.31 km | -38 m | -0.1% |
| Deanway - Chalfont St Giles | 0.85 km | 30 m | 3.5% |
| ParsonageRd2BackLane | 0.50 km | 18 m | 3.6% |
| TH to Seer Green | 2.05 km | -7 m | -0.1% |
| School Lane to Whipass Hill | 1.97 km | 16 m | 0.6% |
| end of bottom lane to A355 | 1.05 km | 11 m | 0.9% |
| Ledrorough Lane | 1.16 km | 12 m | 0.8% |
| NFTS Here I come | 0.77 km | 11 m | 1.4% |
| Old Town to Rugby Club | 0.57 km | -13 m | -2.3% |
| Beaconsfield - Hedgerley Lane west half - eastbound | 2.42 km | -23 m | -0.8% |
| Beacs to GX via Hedgerley Lane | 4.98 km | -55 m | -0.4% |
| Flying K | 1.02 km | -16 m | -1.5% |
| Beaconsfield - Hedgerley Lane east half - eastbound | 2.06 km | -49 m | -1.5% |
| Hedgerley Lane Climb | 0.43 km | 26 m | 6.1% |
| HedgerleyLane to the A40 | 1.03 km | 2 m | 0.2% |
| into GX | 0.75 km | 4 m | 0.2% |
| Bull & Austenwood lanes | 1.81 km | 14 m | 0.5% |
