At the 2015 Pan American Games, competing for Team Canada, Gollish won a bronze medal in the Women's 1500m with a time of 4:10.11.[4][14] She was named 2015 Canadian Interuniversity Sport (CIS) Female Athlete of the Year (track events) for her performance at the CIS Championships, winning three gold medals in the 1000m, 3000m, and 4 × 800 m relay events and two silver medals in the 600m and 1500m events, the most individual medals ever won by a distance athlete.[4][15][16] She was also named MVP of the 2015 Ontario University Athletics (OUA) Championships after winning three individual gold medals in the 600m, 1500m, and 3000m events.[4] In November 2015 she was named one of the Top 8 Academic All-Canadians by Canadian Interuniversity Sport.[17] In December 2015 she won the silver medal in the San Antonio Rock ‘n Roll Half Marathon.[18]
In July 2017 she came in third in the women’s 5,000m at 15:42 at the Canadian Track and Field Championships in Ottawa.[23][24] In 2017 Gollish also set the Canadian 35+ masters 1,500m record with a time of 4:07.70, and the Canadian 35+ 5000m record with a time of 15:24.12.[25][26]
Gollish won gold medals in the 800m, 1,500m (in 4:18.41), and 5,000m events at the 2017 Maccabiah Games, and received the Female Athlete of the Games award from Israeli supermodel closing event host Bar Refaeli.[23][27]
In May 2018, she won the Canadian National Championship in the Half Marathon in Calgary, Canada, with a time of 1:14:19.[28]
On July 11, 2018, Gollish completed the marathon distance in a training run in a respectable 3:18:48. Her debut marathon was in Berlin in September of the same year. Unfortunately, at 31 kilometres she was forced to DNF after the honking of a blocked pace car behind her caused her to go into an anaerobic state, leading to her cramping severely, walking, and then falling down.[29] She was dragged off the course in full-body rigour by paramedics and brought to the hospital.[30] After the incident, she said: "I wanted to quit racing. I’m an engineer, I have a Ph.D., why am I doing this?" But after a few days she realized that she was too in love with running to stop.[29]
2021-present
In 2021 Gollish set the W35 Canadian national record in the mile at age of 39, with a time of 4:23.17.[26]
On February 27, 2022, Gollish set a new women’s 40+ indoor mile world record of 4:38.73, breaking the decade-old record by six seconds, at the Ontario Masters Championships in Toronto.[31][32]
In June 2022, Gollish broke the previous women’s Canadian 40+ 1,500m record by seven seconds in a time of 4:16.46 at the La Classique d’athlétisme de Montréal.[25] In 2022 she also won two national championship medals, in the 10,000m (silver) and road 10K (bronze), and the gold medal at the 2022 NACAC Half Marathon Championships in San Jose, Costa Rica in mid-May.[25]
In September 2022 she won the women’s vertical climb at the Canadian Mountain & Trail Running Championships in Vernon, British Columbia.[32]