| 121 | 15:00 | J15.4X+ | 145 |  | (183) Guildford RC (Mantell) |  | (184) Tiffin School BC (Tranter) |  | (185) Walbrook RC (Watters) | | | |
| 122 | 15:03 | J15.4X+ | 145 |  | (186) Barn Elms RC (Egorov) |  | (187) Whitgift School BC (Evans) |  | (188) King's College School Wimbledon (Monaghan) | | | |
| 123 | 15:07 | J15.4X+ | 146 | | (189) Whitgift School BC (Urquhart) |  | (190) Maidstone Invicta RC (Carter) |  | (191) Team Keane (Zars) | | | |
| 124 | 15:10 | J15.4X+ | 146 |  | (192) Claires Court School (Biehler) |  | (193) Twickenham RC (Nori) | | (194) Team Keane (Morgan) | | | |
| 125 | 15:14 | J15.4X+ | 147 |  | (195) Fulham Reach RC (Zeka) | | (196) Claires Court School (Adams) | | (197) Tiffin School BC (Tsui) | | | |
| 126 | 15:17 | J15.4X+ | 147 |  | (198) Hampton School (Thorpe) |  | (199) Molesey BC (Goodman) | | (200) Guildford RC (Kandemir) | | | |
| 145 | 16:24 | J15.4X+ | 170 |  | Winner of Race 121 | ![]() | | | Winner of Race 122 | | | |
| 146 | 16:27 | J15.4X+ | 170 | | Winner of Race 123 | ![]() | | | Winner of Race 124 | | | |
| 147 | 16:31 | J15.4X+ | 170 | | Winner of Race 125 | ![]() | | | Winner of Race 126 | | | |
| 170 | 17:51 | J15.4X+ | | | Winner of Race 145 | | Winner of Race 146 | | Winner of Race 147 | | | |