Sports Injuries Clinic co-ordinator Graeme Harvey was predicting many more injuries before competitors crossed the last finish line this Sunday.
Last year, about 380 competitors required medical attention during the Games.
But because three-quarters of the injuries so far this year happened last weekend during the touch, football, athletics and netball events, he believed the number of injuries could top 400.
"Three-quarters in three days is beyond belief.
"We've still got the basketball, hockey and ice hockey coming this weekend."
Harvey said by the end of last weekend, they had run out of strapping tape and tubular bandages, and had to get more supplies in for the remainder of the Games this week.
While the Masters Games are noted for attracting "senior" competitors with thousands of hours or kilometres of experience under their belts, Harvey said those suffering injuries came from right across the age spectrum.
The majority of the injuries occurred during the more "vigorous and violent" sports such as football, athletics, netball, basketball and hockey, he said.
"We've had loads of sprains, four or five ruptured Achilles [tendons], a broken leg at the football, and a few stitches.
"Netball has provided the most work for us - sprains and strains mainly."
Harvey said 10 competitors had to be sent to Dunedin Hospital for treatment, 20 to the urgent doctors and the rest were treated by his medical staff at the sporting venues.
"It's well known in medical circles that the older you get, the less flexible you become.
"That's why we see lots of sprains and strains.
"We haven't had anyone sprain their eyes playing scrabble yet.
"But you never know . . ."
