Govaerts (14) won four medals - two gold, a silver and bronze - at the national age-group championships in Wellington in April.
He continued his good form at the Neptune Queen's Birthday meet at Moana Pool at the weekend.
He won five events against strong Canterbury opposition in the boys aged 13 and 14 grade: 50m (30.80sec) and 100m (1min 06.01sec) breaststroke, 100m (53.63sec) and 200m (1min 57.49sec) freestyle, and 100m individual medley (1min 01.63sec).
His most significant performance came in the 100m freestyle when he equalled the Otago short-course record for boys aged 14 and 15 his training partner, New Zealand junior representative Andrew Trembath, set two years ago.
Govaerts qualified for the New Zealand short-course championships in this event and also in the 200m freestyle when he broke the 2min barrier.
There was a high standard of swimming in the boys aged 13 and 14 age group in which Canterbury swimmer Satori Dobbie (QE2) won six events.
Dobbie (14), a pupil at Milton-Grange School, is one of the most promsing younger swimmers in New Zealand. He won three gold medals in butterfly events at the national age-group championships.
He broke Canterbury age-group records in the 50m freestyle (24.85sec) and 50m (26.80sec), 100m (59.45sec) and 200m (2min 12.06sec) butterfly events at the weekend.
The most successful female swimmer was Kyra Forrest (Wharenui), a pupil at Cashmere High School, who won seven events in the girls aged 13 and 14 grade.
Her most impressive performance was in the 200m freestyle in which she was just 0.20sec short of a 10-year-old New Zealand age-group record with her time of 2min 05.82sec.
But it was her 30th Canterbury age-group record.
''I didn't know I was so close to the national record,'' she said.
''It was really exciting.''
The best Otago female swimmer was Aleisha Ruske (Neptune), who remained unbeaten and won 10 titles in the girls aged 15 and 16 grade.
She always had the edge over the Canterbury swimmers, especially in her tussles with the promising Emily Rennell (Jasi) and Felicity Lowen (Aquagym).
She beat Rennell narrowly in the 50m (50m8.67sec) and 100m (1min 03.67sec) butterfly, and Lowen in the 50m (27.40sec) and 100m (58.47sec) freestyle and 100m (1min 07.43sec) and 200m (2min 25.56sec) individual medley.
There were 358 swimmers from around the South Island who competed in the meeting. This was the second-highest number of swimmers in the annual carnival that has been held for the past 31 years.
The event marked the return to competitive swimming of St Kevin's College pupil Isobel Ryan (Oamaru) after a six-month lay off because of health problems.
Ryan (17) missed all the major competitions last season after winning two New Zealand age-group titles early in 2013.
At the weekend, Ryan won three open women's events: 50m (27.36sec) and 100m (58.95sec) freestyle and 50m (30.22sec) backstroke.
Promising performances came from Queenstown swimmers Molly Law, who won the 400m freestyle (5min 03.91sec), and Gabby White, who won the 50m butterfly (33.13sec) in the girls aged 11 and 12 grade.
Campbell Pearson (Aleaxndra) won the boys aged 15 and 16 200m backstroke in 2min 13.94sec and Oamaru's Alice Petrie (10) gained the most points in the girls grades with 95.
