The Dublin shot 65 today to leave him on 10 under par.
Niall Kearney is just two shots off the lead at the midway point of the Dutch Open.
The Dubliner followed yesterday’s 65 with a 69 today to reach halfway on 10-under par.
Sweden’s Kristoffer Broberg beat Kearney’s day-old course record to assume the out-right lead on 12-under.
Graeme McDowell is just outside the top ten on 7-under par.