American notary Michael Phelps lost the 100-meter swimming race against a large white shark.
The highly-publicized head-to-head race between the American and the shark turned out to be a computer simulation, which prompted complaints from many disappointed viewers, Express reports.
The world's most decorated Olympic swimmer, Phelps, spent 100 feet in the open ocean for 38.1 seconds, while the shark was 36.1.
The race was broadcast on Discovery Channel.
But what the viewers saw was actually a Phelps swim montage near a large computer-generated shark.
Before the race broadcast this Sunday, the 28-time Olympic winner, who has already retired, and the shark had swam alone.
Shocked computer shark screens overlapped over Phelps to look as if they were swimming next to each other.
Some users in social networking have liked the idea of the race, but many others have felt looted by the simulation.