Celtic F.C. their sixth successive league title on 2 April 2017, with a record eight league games to spare. As Celtic's unbeaten domestic run continued, they subjected Rangers to their heaviest defeat at Ibrox since 1915, 5–1, on 29 April. Celtic's 2–0 win over Hearts on 21 May saw them finish 30 points ahead of second-placed Aberdeen in the league, with a record 106 points, and the team became the first Scottish side to complete a top-flight season undefeated since Rangers in 1899. On 27 May 2017, Celtic clinched their fourth treble by defeating Aberdeen 2–1 in the Scottish Cup final. The
2010 Celtic League Grand Final 2010 Celtic League Grand Final The 2009–10 Celtic League Grand Final was the final match of the 2009–10 Celtic League season. The 2009–10 season was the fourth sponsored by Magners and was the first ever Celtic League Grand Final. The final was won by the Ospreys who defeated Leinster by 17–12 at the RDS Arena to win their third Celtic League title, the win ended Leinster's 20-month unbeaten home league record. First half tries from Tommy Bowe after twenty minutes and Lee Byrne after thirty five minutes which were both converted put the Ospreys 3–14 up at half time, with