| Bala to Bwlch summit | 16.22 km | 380 m | 2.3% |
| Bala Lake South (Old Road) | 7.19 km | 36 m | 0.5% |
| Bala lake east side | 6.17 km | 39 m | 0.6% |
| Bwlch Long | 10.00 km | 362 m | 3.6% |
| bwlch-y-groes from llanuwchllyn | 8.60 km | 343 m | 3.4% |
| Llanwchllyn | 8.00 km | 346 m | 4.3% |
| B4403 Climb | 2.22 km | 148 m | 6.7% |
| Bwlch-y-Groes north approach, final climb | 3.39 km | 249 m | 7.3% |
| The climb past the biggest stone wall ever | 2.01 km | 161 m | 8.0% |
| Final section up to bwlych-y-groes | 1.79 km | 153 m | 8.2% |
| B4403 Climb | 1.63 km | 130 m | 7.9% |
| Bwich y Groes Full descent to Lake Vyrnw | 6.38 km | -294 m | -4.6% |
| Descent to Lake Vyrnwy | 5.96 km | -227 m | -3.7% |
| Bwlch y groes to Vyrnwy - Last descent | 2.55 km | -169 m | -6.6% |
| Lake Vyrnwy West Side | 7.05 km | -6 m | -0.0% |
| Lake Vyrnwy last stretch | 5.00 km | 41 m | 0.2% |
| west side 1 | 1.67 km | -35 m | -2.0% |
| Vyrnwy Bridge Sprint | 0.31 km | 1 m | 0.1% |
| Sprint to finger | 0.86 km | 41 m | 4.3% |
| Parc Llwydiarth | 0.76 km | 35 m | 4.6% |
| Dyfnant Forrest | 2.08 km | 87 m | 4.1% |
| Nasty, Stinky, slimy, Hill Climb | 1.67 km | 28 m | 1.4% |
| Carnedd Wen | 4.19 km | 93 m | 2.1% |
| weeeeeeeeeee!!!!! | 6.97 km | -185 m | -2.5% |
| Dinas Mawwdwy to Bwlch y Groes Cattle Grid | 11.46 km | 477 m | 4.2% |
| Bwlch Y Groes Asscent | 3.67 km | 386 m | 10.1% |
| Bwlch y Groes [Intermediate 1] | 0.53 km | 40 m | 7.5% |
| Bwlch y Groes (bridge to car park) | 2.96 km | 392 m | 13.2% |
| Bwlch-y-groes Cross of Iron | 2.53 km | 300 m | 11.9% |
| OFFICIAL 100Climbs No91 Bwlch-y-Groes | 2.95 km | 369 m | 12.5% |
| Bwlch y Groes | 2.63 km | 356 m | 13.5% |
| Bwlch y Groes [Intermediate 2] | 1.30 km | 172 m | 13.2% |
| Bwlch y Groes [Intermediate 3] | 0.55 km | 103 m | 18.4% |
| Glanwnion Row Climb | 0.65 km | 94 m | 14.3% |
| Bwlch y Groes [Intermediate 4] | 0.52 km | 62 m | 11.8% |
| last steep bit | 0.47 km | 57 m | 12.1% |
| The Beast of the Bwlch descent | 4.65 km | -277 m | -6.0% |
| free wheel down but crash to left you're dust | 4.34 km | -276 m | -6.3% |
| Bwlch Descent | 7.91 km | -327 m | -4.1% |
| Llyn Tegid Old Road | 6.57 km | -30 m | -0.4% |
