The Open 2015 fourth round tee-times: Paul Dunne heads out in final group with Louis Oosthuizen as Jason Day shares lead

Irish amateur Paul Dunne shares the lead of The 144th Open Championship

Paul Dunne (GETTY IMAGES)

The fact that The 144th Open Championship will run into a fifth day has not hurt the tournament one bit following the emergence of 22-year-old Paul Dunne.

The amateur golfer from Dublin stunned watchers at St Andrews as he carded a brilliant six-under-par 66 on Sunday to put himself in the frame to not only take the Silver Medal for the leading amateur, but to win the Claret Jug outright.

Dunne's playing partner on Sunday, Louis Oosthuizen, joins him on -12 along with Australian challenger Jason Day and Ooshuizen will join Dunne once again in Monday's final pairing at 2.30pm. However, the trio will be constantly looking over their shoulder with the grand slam-seeking Jordan Spieth primed to attack as he sits one shot off the lead.

To find the eventual winner you might just have to look further down the leaderboard given that 17 players are still within five shots of the lead, with a further eight players one -7 who will insist they are still in the running.

With the fourth round action set to run into Monday for just the second time in 144 years of The Open, fans will have to keep an eye on all matters at St Andrews to see if an amateur can win the championship for the first time since 1930.

FOURTH ROUND TEE TIMES:

0745: Ryan Fox (Nzl) & Bernard Langer (Ger)

0755: Scott Arnold (Aus) & Paul Casey

0805: Francesco Molinari (Ita) & Thomas Aiken (SA)

0815: Ross Fisher & Cameron Tringale (USA)

0825: Bernd Wiesberger (Aut) & Mark O'Meara (USA)

0835: Billy Horschel (USA) & Branden Grace (SA)

0845: David Howell & Jamie Donaldson

0855: Henrik Stenson (Swe) & Matt Kuchar (USA)

0905: Graeme McDowall & Gary Woodland (USA)

0915: Brett Rumfrod (Aus) & Richie Ramsay

0930: Thongchai Jaidee (Thai) & Ernie Els (SA)

0940: Brendon Todd (USA) & Lee Westwood

0950: Russell Henley (USA) & Greg Owen

1000: Romain Langasque (Fra)* & David Lipsky (USA)

1010: Phil Mickelson (USA) & James Morrison

1020: Kevin Na & Oliver Schiederjans (both USA)

1030: Harris English (USA) & Rafael Cabrera-Bello (Spa)

1040: Graham Delaet (Can) & John Senden (Aus)

1050: Luke Donald & Geoff Ogilvy (Aus)

1100: Jimmy Walker & Webb Simpson (USA)

1115: Martin Kaymer (Ger) & David Lingmerth (Swe)

1125: Andy Sullivan & Marcus Fraser (Aus)

1135: Ben Martin & Jason Dufner (both USA)

1145: Hunter Mahan & David Duval (both USA)

1155: Paul Lawrie & Anirban (Ind)

1205: Matt Jones (Aus) & Brooks Koepka (USA)

1215: Greg Chalmers (Aus) & Ashley Chesters*

1225: Jim Furyk & Dustin Johnson (USA)

1235: Marc Warren & Hideki Matsuyama (Jap)

1245: Anthony Wall & Stewart Cink (USA)

1300: Patrick Reed & Ryan Palmer (USA)

1310: Rickie Fowler (USA) & Steven Bowditch (Aus)

1320: Charl Schwartzel (SA) & Eddie Pepperell

1330: Danny Willett & Zach Johnson (USA)

1340: Adam Scott (Aus) & Robert Streb (USA)

1350: Retief Goosen (SA) & Justin Rose

1400: Sergio Garcia (Spa) & Jordan Niebrugge (USA)*

1410: Marc Leishman (Aus) & Padraig Harrington

1420: Jordan Spieth (USA) & Jason Day (Aus)

1430: Louis Oosthuizen (SA) & Paul Dunne*

(GB and NI unless stated otherwise; * denotes amateur)