Windsor, Slough, Eton & Hounslow Athletics Club (WSEH) sealed promotion to the Premier Division after a superb victory at Liverpool.
Osman Muskwe set the tone as he set a club record in the discus, with 53.94m, while Joey Watson performed an impressive 41.05m in the B string.
Jonny Sawyers also played a critical role, sealing a WSEH victory in the triple jump with a leap of 14.76m.
Taylor Campbell and Mikki Finn stormed the opening hammer event, the former notching 64.99m and supported by Finn, with 49.62m.
Alex Tovey and Kieran Wye earned critical points as they took second places in the 1500m – recording times of 3.56.73 and 4.02.07, respectively, while Alex Goodall finished as a runner-up in the 3000m with a time of 8.29.72.
Leigh Bosson took the B string javelin honours with a personal best of 46.56m, while Muskwe finished fourth in the A string with 48.68m.
And Watson outdid team-mate Muskwe in the shot, with the former recording 15.69m to earn second place in the A string, and the latter winning the B with 14.68m.
The best of the final relay events proved the 4x400m where Cameron Challis, Jordan Thomas, Alex Tovey and Andy Clements finished in 3.24.99secs.
Meanwhile, WSEH ladies capped an impressive season by claiming the runners-up spot in the 2015 UK rankings after their final Premier-level match of the season, on Saturday.
Leah Barrow starred as she won the 800m with a personal best of 2.03 before Lukesha Morris and Shone Richards took decisive victories and Monique Dell impressed alongside Laura Wake.
Amy Holder and Rachel Wallader, in the discus and shot, respectively, also played key roles while Tilly Compton-Stewart made a strong debut in the two-kilometre steeplechase.
