Three and a half hours into Sunday's race, the alert system went to red, and runners were asked to slow down.
You can get race results alerts from the BBC Sport app, meaning you get the results as they happen.
During the 1908 pennant race, Evers alerted the umpires to Fred Merkle's baserunning error in a game against the New York Giants, which became known as "Merkle's Boner".
They will make it impossible to mark ballots for more than one candidate in each race and will alert voters if they fail to pick a candidate in a race.
Within minutes, Nicholson alerted race control in Alicante, Spain.
Tanner's wife, Kitty, is pregnant; he borrows a pair of racing pigeons to alert the nearest doctor, two hours away by horse trap.
Race participants were alerted before the race that they would be asked to complete a post-race web-based questionnaire.
Pre-race electronic correspondence also alerted race participants that they would be requested to complete a post-race web-based questionnaire.
Ask the race organizers not to alert you to who has contributed on your behalf, and make sure donors know that this is the case.
The drag-racing star John Force was alert and conscious after sustaining serious injuries in a wreck with his Funny Car rival Kenny Bernstein during the N.H.R.A. Fall Nationals at Texas Motorplex in Ennis.
