Scorching conditions made it less than ideal for running but many still got themselves out.
The Herts 10k at Bovingdon proved popular with Fairlands Valley Spartans athletes producing some great runs.
Jonathan Parr was second overall in the 5k with a time of 16 minutes 47 seconds while Stuart Haycroft was seventh in 18:13.
In the 10k race Andrew Vaughan came home 25th in 42:20 while Yuko Gordon was 34th and Jim Brown 44th.
Glenn Cuzner (22nd), Stuart Cuzner (31st), David Ellis (32nd) and Martin Scales (38th) were among those from Stevenage Striders who took part.
Striders' Sue Loughran has been battling cancer but still managed a half-marathon as she raises money for Cancer Research UK.
She was supported by a number of team-mates and so far has raised £2,130.
Four from North Herts Road Runners braved the heat on the track at Milton Keynes in the MK5000 series.
Andrew Leach, Mark Vaughan, Nathan Pask and Stewart Overton were still able to produce impressive efforts though, Leach leading them with 16:45 ahead of Vaughan (17:23), Pask (17:28) and Overton (17:52).
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