Chichester's Jamie Baker won the Sussex 3,000m track championship just hours after winning the Fittleworth five-mile multi-terrain race in the morning.
The 26-year-old reigning county steeplechase champion beat Burgess Hill's Darren Stiles in 29min.17sec over road and cross-country terrain at Fittleworth. Stiles clocked 29min.31sec for second place.
At Crawley in the afternoon, Baker dominated the county 3,000m championship to win in 8min.52.3sec, his fastest time of the season.
Baker finished the length of the home straight clear of Brighton and Hove's Paul Ilott who picked up his first individual championship medal in 9min.17.2se. Second overall was Ilott's club-mate Rob Shannon who took the veterans title in 9min.05.5sec.
Jo Hesketh carved herself a special notch in Sussex history when she became only the second woman to win the HL Tharby Trophy for the first race walker to finish in the county 10,000m championship.
Times were good as the walkers covered the 25 laps of the Crawley track.
Home-town man Chris Cheeseman took the lead . Cheeseman competed as a guest as he has Surrey qualification.
Wearing his trademark white cap. Cheeseman lapped everyone at least twice as he stormed to a fine victory in 45min.39.68sec, one of the fastest times ever record by a British 44-year-old.
Hesketh, 34, however, led the Sussex walkers home after trying to stick with Cheeseman early on. She smashed her previous best time to win the Sussex women's title in 52min.18.0sec.
Hesketh said: "I'm more than pleased with my time. It's 30 seconds faster than I have walked before and, in these hot conditions, I'm shattered but happy."
Club-mate Richard Emsley took the men's title. He finished more than half a lap behind Hesketh in 53min.45.64m.
The HL Tharby Trophy has only once before been won by a woman. Kirsty Coleman won it in 1997 but in a time five minutes slower than Hesketh's.
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