The first named crew is on the Bucks Station
165) Upper Thames───────────────────┐
│ Walton
166) Wimbleball (Macdonald/Beamish)─┼────────────────────────────────────
│ 3:26 3 lengths
167) Walton─────────────────────────┘
272) Walton──────┐
│ Warwick
273) Warwick─────┼─────────────────
│ 3:50 3 lengths
274) Marlow──────┘