Monk of course will take the plaudits so far after hitting a nine-dart finish during his win over James Hubbard - the first in the MODUS ran competitions. He also hit a 108 average to produce one of the best overall performances, nine-dart finish aside so far.
He started the day himself by seeing off Andy Jenkins in a 5-2 win where he averaged 96 en route and two 180's.
Portela has also impressed dispelling Adam Huckvale's winning start against James Hubbard with a 5-2 victory and a high checkout of 125. That was followed up shortly after the nine-darter with a second win from two as he edged past Andy Jenkins 5-4.
The Icons of Darts League is a competition that runs on 24 different days from Monday April 6 through to Saturday May 2. Each playing week consists of six players. There are five players on each matchday with one player taking a rest.
Each day consists of four matches for each player with the player with the most wins claiming the group win for that day.
Adam Huckvale (84.24) 5-4 (88.09) James Hubbard
Arron Monk (96.34) 5-2 (84.06) Andy Jenkins
Diogo Portela (89.3) 5-2 (85.85) Adam Huckvale
James Hubbard (84.9) 2-5 (108.34) Arron Monk
Andy Jenkins (85.94) 4-5 (87.34) Diogo Portela
Adam Huckvale v Arron Monk
James Hubbard v Andy Jenkins
Diogo Portela v Arron Monk
Adam Huckvale v Andy Jenkins
James Hubbard v Diogo Portela