Spring

On her three-year-old debut Seventh Heaven contested a one-mile maiden on the Polytrack surface at Dundalk Racecourse on 18 April in which she was ridden by Seamie Heffernan. Starting the odds-on favourite in an eleven-runner field she took the lead approaching the final furlong and won by three and a quarter lengths from the Dermot Weld-trained Heartful.^[8]

The filly was then moved up in class and distance for the Listed Oaks Trial Stakes over eleven and a half furlongs at Lingfield Park 7 May. Ridden by Ryan Moore she started 15/8 favourite in a five runners field which included the highly regarded British-trained fillies Mountain Bell (a ten length winner of a maiden at Windsor) and Architecture. Seventh Heaven tracked the leader Mountain Bell before taking the lead in the last quarter mile and getting the better of what was described by the Racing Post as a "sustained duel"^[9] with Architecture to win by a neck. After the race Moore said "She didn't like the ground or the track and she's still won. She's a good filly and she'll have learned plenty".^[10]

Summer

The Epsom Oaks on 5 June saw Seventh Heaven start a 20/1 outsider in a field headed by her stablemate Minding. After tracking the leaders she dropped from contention in the straight and finished sixth of the eight finishers, thirty-three lengths behind Minding, who won from Architecture and Harlequeen.

On 16 July, Seventh Heaven (ridden by Heffernan) faced Architecture and Harlequeen again in the Irish Oaks at the Curragh and started a 14/1 outsider. The O'Brien stable fielded three other runners: the Ribblesdale Stakes winner Even Song, ridden by Moore, who started odds-on favourite, the Munster Oaks winner Pretty Perfect and the Cheshire Oaks winner Somehow. The best of the other five runners appeared to be Turret Rocks (May Hill Stakes) and Ajman Princess (runner-up in the Ribblesdale). Seventh Heaven raced at the rear of the field as Pretty Perfect made the running but began to make progress as the runners approached the final turn. She was switched to the left to make her challenge in the straight, recovered from a minor bump, and moved up to take the lead just inside the final furlong. She drew away in the final strides and won by two and three quarter lengths from Architecture, with Harlequeen a length and a quarter back in third.^[11] Aidan O'Brien, who was winning the race for the fifth time, nominated the Yorkshire Oaks as the filly's most likely next objective saying "She’ll love the flat track. She's a lovely, big, flowing Galileo filly".^[12]

Seventh Heaven was matched against older fillies and mares for the first time when she contested the Yorkshire Oaks at York Racecourse on 18 August. Ridden by Colm O'Donoghue she started the 100/30 second favourite behind her four-year-old stablemate Found who was returning from a two-month absence. Even Song, Harlequeen, Turret Rocks and Pretty Perfect were again in opposition, whilst the other runners included Queen's Trust (runner-up to Minding in the Nassau Stakes), Endless Time (Lancashire Oaks) and the multiple South American Grade I winner Furia Cruzada. As in her run at the Curragh, Seventh Heaven was held up at the rear of the field before making a forward move entering the straight. Pretty Perfect who had led for most of the way, was overtaken by Queen's Trust two furlongs out but Seventh Heaven gained the advantage a furlong out. Seventh Heaven stayed on strongly in the closing stages and won by two and three quarter lengths from Found, with Queen's Trust in third place.^[13] After the race O'Donoghue said "She's tough and genuine and has a great temperament and a beautiful action" whilst O'Brien commented "She's a beautiful traveler and is a massive, rangy filly that handles fast ground very well. I'd say she's going to make a real 4-year-old, because she's big and rangy."^[14]

Autumn

On 15 October Seventh Heaven, ridden by Moore, started 5/4 favourite for the British Champions Fillies & Mares Stakes over one and a half miles at Ascot Racecourse. Drawn on the far outside of the thirteen-runner field she tracked across to the rail soon after the start to race along the inside. After repeatedly struggling to obtain a clear run, she was switched to the outside in the straight but never looked likely to win and finished fifth behind Journey. In November she was sent to the United States for the Breeders' Cup Filly & Mare Turf over ten furlongs at Santa Anita Park. She started the 7/2 second favourite and stayed on in the straight to finish fourth behind Queen's Trust, Lady Eli and Avenge.