Following his win in the Under 25 Grand Prix, Coyle went on to his second win of the day in the $50,000 Suncast® 1.50m National Grand Prix. Thirty-six entries jumped the final class of the circuit, with five clear rounds to jump-off. Coyle and Ariel and Susan Grange's Dillinger were the fastest double clear in 39.89 seconds. 

Jessica Mendoza (GBR) finished second to Coyle again, this time in 41.86 seconds riding Milena Pappas's Constance. Liubov Kochetova (RUS) and Urus 2 placed third in 43.87 seconds. 

Dillinger is another of the many talented mounts that Coyle took over riding for Susan and Ariel Grange this winter. The rider explained that it has taken him some time to gel with the ten-year-old Belgian Warmblood gelding (Contender x Capitol I), but he is thrilled with how they ended the circuit.

"Dillinger has been a hard one to figure out. He is probably the hardest one of them all," Coyle admitted. "He has loads of scope and he tries to be very careful; his mind just sometimes gets in the way. 

"The end of last year, Sue decided to cut him because he was a stallion up until then," Coyle continued. "We did not really notice a change to start with, but now I think his attitude has changed, and he is so much more focused. You do not have to work him half as much, so he feels better in his body. I knew he was going to be an uphill battle, but the last several rounds that he has jumped, he has felt like a different horse. I am leaving the circuit feeling really good about him. I think that was probably the best round I have ridden the whole circuit."

Taking on so many new horses was a big challenge for Coyle this winter, but he took his time to get to know each horse and figure out what they need. "The start of the circuit was brilliant with Cita," Coyle recapped. "Then she started to go up and down a little bit, and we changed tactics for her. Then I changed everything with all of the horses. I tried to start from scratch basically and work with them the best that I could. That is where Sue and Ariel are incredible. They really let me take my time. 

"The older horses are just starting to progress through now, as we can see in the last week," continued Coyle. "It is an amazing feeling to leave a big show like this with some great wins. It feels incredible."

Following his unprecedented success this circuit, Chile's Samuel Parot was presented the Harrison Cup Perpetual Trophy as the horse owner whose horses won the most jumping money in all of the open jumper classes held at the Winter Equestrian Festival.

1. DILLINGER: 2007 Belgian Warmblood gelding by Contender x Capitol I
DANIEL COYLE (IRL), Ariel and Susan Grange: 0/0/39.89

2. CONSTANCE: 2007 KWPN mare by Indoctro x Animo
JESSICA MENDOZA (GBR), Milena Pappas: 0/0/41.86

3. URUS 2: 2005 Oldenburg gelding by Canturo x Cento
LIUBOV KOCHETOVA (RUS), Liubov Kochetova: 0/0/43.87

4. SKARA GLEN'S PRESENCE: 2008 Holsteiner stallion by Contendro x Nektn
PAUL O'SHEA (IRL), Skara Glen, Michael Hayden & Paul O'Shea: 0/4/38.42

5. DUBAI: 2008 KWPN gelding by Cardento x Castello
MAVIS SPENCER (USA), Sarah Ryan: 0/8/48.57

6. CORNWALL BH: 2008 Holsteiner stallion by Con Air x Cambridge
AMANDA DERBYSHIRE (GBR), Gochman Sport Horses: 3/83.03

7. CYNAR VA: 2007 Zangersheide gelding by Clarimo x Alcatraz
JESSICA SPRINGSTEEN (USA), Stone Hill Farm: 3/83.55

8. THORNHILL KATE: 2005 Irish Sport Horse mare by Courage II x Clover Hill
LAURA CHAPOT (USA), Laura & Mary Chapot: 4/74.90

9. CORTINA 186: 2007 Holsteiner mare by Contendro II x Lavall I
EMANUEL ANDRADE (VEN), Emanuel Andrade: 4/77.05

10. AIR PIA VG Z: 2005 Zangersheide mare by Air Jordan Z x Pilot
MATTIES TROMP (USA), Swede Ventures LLC: 4/77.64

11. COLORADO 210: 2009 Westphalian gelding by Coronas x Lenardo
LUIS PEDRO BIRABEN (ARG), Miguel Madero & Luis Pedro Biraben: 4/77.83

12. U: 2001 KWPN gelding by Monaco x Calypso
EMANUEL ANDRADE (VEN), Emanuel Andrade: 4/78.30