Kentucky Derby winner Pat Valenzuela among those celebrating on Wednesday
Pat Valenzuela: the rider of 1989 Kentucky Derby winner Sunday Silence is 56Credit: Edward Whitaker
Pat Valenzuela 56
Rider of Sunday Silence & Arazi
Tony Santic66
Owner-breeder of Makybe Diva
Earl of Mansfield and Mansfield 62
Owner of Perth racecourse
Jeff Green 60
Clerk of the course at Windsor 2013-17
Richard Mildmay-White 69
Former director of Tattersalls
Jonathan Leech 51
Rider of Rotherfield Greys
Patrick Donaghy 32
Former Flat jockey
Dave Gutfreund 57
American journalist
Sir Cameron Mackintosh 72
Former owner with Simon Sherwood
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- Join Racing Post Members' Club for the very best in racing journalism - including Patrick Mullins' unmissable trip to see Gordon Elliott
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- Racing Post Members' Club: 50% off your first three months
- 'It’s really exciting we can connect Wentworth's story to Stubbs' - last chance to catch master painter's homecoming
- The jumps season is getting into full swing - and now is the perfect time to join Racing Post Members' Club with 50% off
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- Join Racing Post Members' Club for the very best in racing journalism - including Patrick Mullins' unmissable trip to see Gordon Elliott
- Join the same team as Ryan Moore, Harry Cobden and other top jockeys with 50% off Racing Post Members' Club
- Racing Post Members' Club: 50% off your first three months
- 'It’s really exciting we can connect Wentworth's story to Stubbs' - last chance to catch master painter's homecoming
- The jumps season is getting into full swing - and now is the perfect time to join Racing Post Members' Club with 50% off