He clocked 17.29 to win by eight seconds from Poole Runners’ Mike Liddell, who was also recording a PB finish for the 5k event. Portsmouth Runners’ Danny White (vet 35-29) was third in 17.42.
Bollom had previously won at Southsea in December 2018.
First female finisher was Ginny Scott (vet 5-39) who was 46th overall, out of 370, with a PB of 21.59.
Two hundred and eighteen runners took to Staunton Country Park for the latest Havant parkrun.
First home was Josh Kennett (male 25-29) who powered to victory with the only sub 19- minute run of the day (18.41).
Victory AC veterans Paul Mitchinson and Simon Gill took second and third with 19.04 and 19.24 respectively.
Liss RC’s Alex Coomber (vet 45-49) was again the highest placed female, 16th overall with a PB of 21.28.
Eastleigh RC’s Martin Stockley (male 30-34) was first home in a 229-field in the Fareham parkrun at Cams Hill Estate.
He was a comfortable winner in 17.30 - 51 seconds ahead of runner-up Tom Rolfe (Stubbington Green Runners, 18.21). Christopher Pearce (Defence Sports and Recreation) was one second adrift in third.
Fifth placed Nikki Moxham (vet 45-49) was again the highest placed female, in 19.54.
There was a Stubbington Green Runners double at the Lee-on-the-Solent parkrun.
The club’s Phil Morgan was first to finish among the 381-strong field, in a PB time of 17.37.
Club colleague Aime Morgan was the first female home, in 30th place in 21.21
Thomas Wallace, second overall in 18.11, was 27 seconds quicker than third-placed Tom Barnard.
Youngster Thomas Hicks, in only his fourth ever adult parkrun, was first to finish at Portsmouth Lakeside.
The Southampton AC youngster - competing in the junior 11-14 category - was 20 seconds faster than anyone else in winning in 18.29.
Hicks had previously finished second at a Southsea parkrun in July in an even quicker time, 17.56.
City of Portsmouth AC’s Damon Howard (18.49) was second and Andy Turner (Liss RC) third in 19.00.
A 20.31 PB for Charlotte Reading (Chichester Runners) secured her 10th place overall. She was almost three minutes quicker than the next female home, Jackie Lloyd (Liss, 23.25).
Compiled by Pepe Lacey