List of Masters world records in swimming
The Masters world records in swimming are ratified by FINA, the international governing body of swimming. Records can be set by registered Masters competitors. The minimum age is 25 years in long course (50 metres) or short course (25 metres) swimming pools. Long course

Men
Key:

Freestyle

Backstroke

Breaststroke

Butterfly

Individual medley

Relay

Women
Key:

Freestyle

Backstroke

Breaststroke

Butterfly

Individual medley

Relay

Mixed Relay

Short Course

Men
Key:

Freestyle

Backstroke

Breaststroke

Butterfly

Individual medley

Relay
Relays: To be conducted on the total age of team members in whole years. Age groups of relay events are as follows: 100 - 119, 120 - 159, 160 - 199, 200 - 239, 240 - 279, 280 -319, 320 - 359, and ...(forty year increments as high as is necessary). Women
Key:

Freestyle

Backstroke

Breaststroke

Butterfly

Individual medley

Relay

Mixed Relay

Notes

References 
General
World Aquatics: Masters Long Course World Records 28 February 2023 updated
World Aquatics: Masters Short Course World Records 28 February 2023 updated
Specific

External links
Masters Rules on World Aquatics web site
Masters All Time Top Ten - Long Course (1986-2022)
Masters All Time Top Ten - Short Course (1986-2022)

Masters
Masters swimming