Runner-up in the 1,000 Guineas, Maids Causeway saw off Karen's Caper in a battling finish and won the �140,000 first prize in a photo-finish.

Earlier, Plea Bargain survived a stewards' inquiry to take the spoils to the King Edward VII Stakes.

Trainer Jeremy Noseda made a great start to the day with a one-two in the opening race, the Albany Stakes.

1730 - King George V Stakes (One mile four furlongs)

1 Munsef (R Hills) 14-1
2 Sunday Symphony (K McEvoy) 12-1
3 Consular (P Robinson) 8-1
15 ran. Dist: 2�l, Nk.

In-form trainer John Dunlop enjoys another winner with Munsef, who also completes a 389-1 double for jockey Richard Hills.

Several runners are in contention in the final stages but Munsef draws away down the centre of the track for a straightforward victory.

1655 - Queen's Vase (Two miles)

1 Melrose Avenue (K Darley) 4-1
2 Mr Vegas (A Munro) 11-1
3 Helvetio (P Smullen) 11-2
10 ran. Dist: 1l, 3l.

Melrose Avenue, from the Middleham stable of Scot Mark Johnston, hangs on to record the first Yorkshire-trained winner of the meeting.

Coming into the home straight after a fast-paced race, Irish raider Helvetio moves to the head of the field and looks to be cruising.

But Melrose Avenue takes up the running and despite tiring in the final strides, he and jockey Kevin Darley hold off Mr Vegas for victory.

1620 - Wolferton Handicap (One mile 2� furlongs)

1 Imperial Stride 25-1 (R Hills)
2 Mullins Bay (K Fallon) 5-1
3 Thyolo (P Robinson) 20-1
4 Desert Quest (J Spencer) 20-1 20 ran. Dist: 1�l, 5l.

Earlier in the day there was a massive plunge on Simple Exchange but instead the contest is won by a 25-1 outsider, who is not even the trainer Sir Michael Stoute's first string in the race.

Mullins Bay challenges on the run-in but Richard Hills, whose twin brother Michael won the previous race, ends up winning pretty comfortably on Imperial Stride.

Favourite Promotion, trained by Stoute and owned by the Queen, looks in contention at one stage but fades.

1545 - Coronation Stakes (One mile)

1 Maids Causeway (M Hills) 9-2
2 Karen's Caper (J Fortune) 11-2
3 Mona Lisa (J Spencer) 25-1
10 ran. Dist: Shd, 3�l.

Maids Causeway reverses the form of the 1,000 Guineas, where she was beaten by Virginia Waters, to claim the big race of the day.

Coronation Stakes: Full report

Trained by Barry Hills and ridden by his son Michael, Maids Causeway has a real battle with Karen's Caper before just getting up on the line in a photo finish.

Pacemaker Mona Lisa is third with Virginia Waters and favourite Damson well down the field.

There is a moment of anxiety as Hills dismounts immediatelyafter the line but it transpires that the filly has just twisted a shoe.

1505 - King Edward VII Stakes (one mile four furlongs)

1 Plea Bargain (J Fortune) 9-2
2 Brahminy Kite (K Darley)16-1
3 The Geezer (T Quinn) 5-2
Five ran. Dist: �l, �l.

Despite the small field, the Group Two race is one of the most exciting of the week with four of the five runners in a line at the two-furlong pole before hot favourite Mountain High fades.

In the battle for the line, The Geezer is caught in a sandwich between Brahminy Kite and Plea Bargain and looks to get squashed out as the latter, ridden by Jimmy Fortune, drifts left on his way to victory.

The first stewards' inquiry of the week takes place but the places remain unaltered.

However, winning jockey Fortune picks up a three-day ban for careless riding.

1430 - Albany Stakes (six furlongs)

1 La Chunga (J Spencer) 10-1
2 Vague (M Kinane) 50-1
3 Rumplestiltskin (K Fallon) 5-4f
14 ran. Dist: 3�l, 1l.

La Chunga runs away with the race to lead home a one-two for trainer Jeremy Noseda.

She takes up the running a couple of furlongs out and despite wandering across the track, she comes home several lengths clear of the field while easing up.

It is also the first winner of the meeting for jockey Jamie Spencer, who now has 50 for the season.

For the second day in a row, the first race has been won by an owner more usually associated with jumping - La Chunga belongs to Sir Robert Ogden, whose famous jumpers include Marlborough and Ad Hoc.