In a tight field littered with longshots, Brooks Koepka (5/1) remains the favorite to win the 2019 British Open, sitting alone atop the Westgate oddsboard through 36 holes. Try telling that to co-leaders Shane Lowry (8/1) and J.B. Holmes (16/1), who are tied at 8-under after Friday's second round at Royal Portrush, three strokes ahead of Koepka. Holmes, who led by a stroke after Round 1, managed a 3-under on Friday to maintain his perch, though Lowry bested him with a 4-under par to share the lead. Holmes, an American, entered the week at 300/1; Lowry, an Irishman, came in at 80/1. Rory McIlroy, who many expected to dominate this year's Open in his home country of Northern Ireland, missed the cut despite shooting a remarkable 6-under 65 on Friday -- tied for the best round of any golfer at the tournament so far. McIlroy entered the week as the [8/1 betting favorite](https://www.betchicago.com/british-open-2019-betting-odds-weather-rory-mcilroy). Behind him on the oddsboard before the event was Koepka, who opened the week at 10/1 and dipped as low as 7/2 on Thursday before settling at 5/1 ahead of Saturday's third round. Koepka [bemoaned his putting](https://www.golfchannel.com/news/brooks-koepka-frustrated-putting-content-position-open) after Friday's round but still sits just three shots back of the lead, tied for eighth. Tommy Fleetwood (11/2) built off a strong showing Thursday with a better one Friday to stay one shot back, tied for third with fellow Brit Lee Westwood (14/1). Justin Rose (7/1), Jon Rahm (14/1) and Jordan Spieth (14/1) are also among the eight golfers with odds shorter than 20/1 ahead of weekend play, all within four shots of the lead. Tiger Woods, along with McIlroy, missed the cut after shooting 1-under in the second round. ## Updated British Open odds (Westgate) *As of July 19 after Round 2* <style type="text/css"> </style> <table class="tableizer-table"> <thead><tr class="tableizer-firstrow"><th>Player</th><th>Odds</th></tr></thead><tbody> <tr><td>Brooks Koepka</td><td>5/1</td></tr> <tr><td>Tommy FLEETWOOD</td><td>11/2</td></tr> <tr><td>Justin ROSE</td><td>7/1</td></tr> <tr><td>Shane LOWRY</td><td>8/1</td></tr> <tr><td>Jon RAHM</td><td>14/1</td></tr> <tr><td>Jordan SPIETH</td><td>14/1</td></tr> <tr><td>Lee WESTWOOD</td><td>14/1</td></tr> <tr><td>J.B. HOLMES</td><td>16/1</td></tr> <tr><td>Dustin JOHNSON</td><td>20/1</td></tr> <tr><td>Cameron SMITH</td><td>30/1</td></tr> <tr><td>Matt KUCHAR</td><td>30/1</td></tr> <tr><td>Xander SCHAUFFELE</td><td>30/1</td></tr> <tr><td>Henrik STENSON</td><td>40/1</td></tr> <tr><td>Justin HARDING</td><td>40/1</td></tr> <tr><td>Rickie FOWLER</td><td>40/1</td></tr> <tr><td>Tony FINAU</td><td>40/1</td></tr> <tr><td>Patrick REED</td><td>50/1</td></tr> <tr><td>Webb SIMPSON</td><td>60/1</td></tr> <tr><td>Dylan FRITTELLI</td><td>60/1</td></tr> <tr><td>Andrew PUTNAM</td><td>80/1</td></tr> <tr><td>Erik VAN ROOYEN</td><td>80/1</td></tr> <tr><td>Lucas BJERREGAARD</td><td>80/1</td></tr> <tr><td>Tyrell HATTON</td><td>80/1</td></tr> <tr><td>Alex NOREN</td><td>125/1</td></tr> <tr><td>Matthew FITZPATRICK</td><td>125/1</td></tr> <tr><td>Patrick CANTLAY</td><td>150/1</td></tr> <tr><td>Justin THOMAS</td><td>150/1</td></tr> <tr><td>Kevin KISNER</td><td>200/1</td></tr> <tr><td>Thorbjorn OLESEN</td><td>200/1</td></tr> <tr><td>Thomas PIETERS</td><td>200/1</td></tr> <tr><td>Byeong Hun AN</td><td>250/1</td></tr> <tr><td>Rory SABBATINI</td><td>300/1</td></tr> <tr><td>Robert MacINTYRE</td><td>300/1</td></tr> <tr><td>Paul CASEY</td><td>300/1</td></tr> <tr><td>Louis OOSTHUIZEN</td><td>300/1</td></tr> <tr><td>Branden GRACE</td><td>300/1</td></tr> <tr><td>Danny WILLETT</td><td>300/1</td></tr> <tr><td>Lucas GLOVER</td><td>300/1</td></tr> <tr><td>Ernie ELS</td><td>500/1</td></tr> <tr><td>FIELD ( all others )</td><td>10/1</td></tr> </tbody></table> __MORE:__ [Our complete golf betting coverage](https://www.betchicago.com/golf-odds/home)