Going news and market movers as Britain braces itself for hottest day on record

Leopardstown hosts a highly informative card with a pair of juvenile contests which will likely have ramifications on next season's Guineas markets.

The Group 3 Tyros Stakes (7.30) allows us the opportunity to examine a handful of promising colts and Aidan O'Brien, who has saddled the last five winners, relies on maiden scorers Armory and Toronto.

Fillies take centre stage 35 minutes earlier in the Group 3 7f Silver Flash Stakes (6.55), where Group 2 second Precious Moments clashes with once-raced maiden winners One Last Look and Windracer.

There are six other meetings to indulge in, with Sandown, Yarmouth, Newbury, Doncaster, Southwell and Limerick the venues of choice with temperatures forecast to soar to an all-time high of 39C in southern and eastern England this afternoon.

Going report

Southwell (first race at: 11.25)
Good (GoingStick: 7.3 at 6.30am)

Sandown (1.45)
Good, good to firm in places (GoingStick 7.3 at 10am)

Yarmouth (2.05)
Good to firm (GoingStick: 7.4 at 6.25am on Tuesday)

Newbury (4.55)
Good to firm, good in places (GoingStick: 6.6 at 8am)

Limerick (5.40)
Good

Doncaster (5.45)
Good (from good, good to soft in places, GoingStick: 7.9 at 6.55am)

Leopardstown (5.50)
Good, good to firm in places

Market movers

12.30 Southwell Carntop 9-2 (from 8)
3.10 Yarmouth Go Fox 11-2 (from 9)
8.40 Newbury J Gaye 17-2 (from 12)

What to back

Maddy Playle supplies Thursday's quickfire selections.

What to read

Racecourse doctor Guy Mitchell, who has one eye, is set to grace the turf in an amateur contest at Newbury today.

Find out what racecourses are doing to combat the high temperatures today.

What to watch

Lambourn trainer Clive Cox spoke to James Burn about his Qatar Glorious Goodwood festival hopes, including exciting Salisbury novice winner Positive and Listed scorer Shades Of Blue.

The best of Racing Post Sport

Bruce Millington, Steve Palmer and StarSports' Glenn Day discuss the latest hot topics in the golfing world.

Final thought

Archie Watson has fared well with his Irish forays and the Lambourn trainer unleashes the smart Nate The Great against a Ballydoyle battalion in the 1m6f Vinnie Roe Stakes (8.30) at Leopardstown.

Read The Briefing from 8.30am daily on racingpost.com and the Racing Post mobile app with all the day's latest going, weather, market moves and non-runner news