The 18-year-old broke four world records in the T33 class in the Swiss meeting to follow two others she had set earlier in the month in Barcelona.

She took four seconds off her own 400m best, posting a time of 1min 10.15sec before a 19.89 second clocking over 100m.

The pick of the bunch, however, was her 2:22.85 800m the following day, taking a superb 12 seconds off a mark that had stood for 15 years.

She also claimed 200m victory with a record 37.38 and now holds every mark from 100 to 1500m.

Watson received 37.16 per cent of the vote to win the Allianz sponsored competition.

Australian canoeist Curtis McGrath was narrowly beaten into second place after receiving 36.86 per cent.

He claimed the Para Canoe World Championship title in the men’s KL2 event, finishing one second ahead of Markus Swoboda to deny the Austrian star a seventh straight world title in the discipline.

Uzbekistani swimmer Shokhsanamkhon Toshpulatova managed 26 per cent after breaking seven Asian record at the IPC European Open Swimming Championships in Funchal,

Belarusian swimmer Ihar Boki and United States' sonar team of Alphonsus Doerr, Hugh Freund and Bradley Kendall each managed just one per cent.

Watson becomes the first track star to win the monthly award this year.

United Arab Emirates' shooter Abdullah Sultan Alaryani won in January, Russian wheelchair curler Andrey Smirnov took the February honours, and Britain's boccia star Stephen McGuire emerged victorious in March.

Colombian swimmer Carlos Serrano triumphed in April.