Rathfarnham WSAF AC's Mitchell Byrne had a cracking finish to come second in the 5000m B race at the BMC Watford Grand Prix Track and Field meeting on Saturday 29th June. Despite the heat and humidity he set a new PB of 14:45.35. Big congratulations and plenty more to come. What do they say..... you loose a second for every degree over 10 Celsius!!!