Home favourite Joost Luiten got his KLM Open title defence off to a fine start thanks to an opening round 65. Check out some more key numbers behind the opening day's action here...
5 – under par leads the way for defending champion Joost Luiten and Jamie McLeary, with some players yet to finish their opening rounds
1978 – the last time anyone successfully defended the KLM Open title
6– birdies for Edoardo Molinari in his first round 66
1 – hole-in-one for James Heath at the 166-yard 11th hole
4 – birdies in his last 5 holes for Matteo Manassero to finish off his round of 68
16 - the par four played the toughest, averaging 4.48 on the opening day
7– the par five was the easiest, averaging just 4.56
0– bogeys for Andrea Pavan in his opening round 66
70 – in round one for Simon Dyson – the Englishman who’s looking for a fourth win at the KLM Open this year
58– under par in his career for Dyson at the tournament
