Rising sprint star Spieth is poised to leap-frog into Lightning Stakes favouritism with online bookmaker sportsbet.com.au.

• Solid support has come for a $15 outsider, Inside Agent, in the C.S Hayes Stakes at Flemington.

• Nurse Kitchen ($7.00) is going dollar for dollar with $2.80 favourite Legless Veuve in The Vanity.

• She Will Reign ($1.50) holds 90 percent of money in the Silver Slipper Stakes at Rosehill.

The four-year-old has firmed from $5.00 into $4.80 and shares the second line with Star Turn.

Coolmore Stakes winner Flying Artie maintains top spot in betting, but has eased from $4.40 out to $4.60, for the Flemington Group 1.

“It’ll be a toss of the coin which horse starts favourite in the Lightning. However, Spieth is the one punters have really come for and he has overtaken Flying Artie as the best backed runner,’’ said sportsbet.com.au’s Will Byrne.

Markets courtesy of sportsbet.com.au

Lightning Stakes

$4.60   Flying Artie

$4.80   Spieth

$4.80   Star Turn

$8.00   Supido

$8.50   Terravista

$8.50   Heatherly

$15      Illustrious Lad

$17      The Quarterback

$26      Counterattack

$31      Flamberge

$31      Faatinah

$67      Missrock

$151    Orujo

Cs Hayes Stakes

$3.60   Hey Doc

$4.60   Seaburge

$6.50   Morton’s Fork

$9.00   Land Of Plenty

$10      Wazzenme

$11      Kaching

$15      Inside Agent

Others Quoted

The Vanity

$2.80   Legless Veuve

$3.80   Harlow Gold

$6.00   Extra Olives

$7.00   Nurse Kitchen

$9.50   Kenedna

$17      Cassadee

$19      Princess Of Queens

$19      Florida Keys

$101    Stryking Miss

Silver Slipper Stakes

$1.50   She Will Reign

$4.80   Khan

$7.00   Veranillo

$19      Lucky Louie

$21      Mystic Empire

$26      Showtime

$51      Lightz