The 2010 Piazza di Siena – CSIO Rome was the 2010 edition of the CSIO Rome, the Italian official show jumping horse show, at the Piazza di Siena in Rome. It was held as CSIO 5*.

The first horse show were held 1922 at the Piazza di Siena, in 1926 it was an international horse show. Since 1928 Rome is the location of the Italian official show jumping horse show (CSIO = Concours de Saut International Officiel). 2010 is the 78th edition of the CSIO Rome.^[1]

The 2010 edition of the CSIO Rome was held between May 27, 2010 and May 30, 2010. The main sponsor of the Piazza di Siena 2010 horse show is SNAI.

The 2010 FEI Nations Cup of Italy was part of the Piazza di Siena 2010 horse show. It was the second competition of the 2010 Meydan FEI Nations Cup.

The 2010 FEI Nations Cup of Italy was held at Friday, May 28, 2010 at 3:10 pm. The competing teams were: France, the United States of America, Germany, Switzerland, the Netherlands, Ireland, Sweden, the United Kingdom, Spain and Poland. Also the team of Italy had as host nation the chance to start in the competition.

The competition was a show jumping competition with two rounds and optionally one jump-off. The height of the fences were up to 1.60 meters. Eight of ten teams were allowed to start in the second round.

The competition was endowed with 200,000 €.

	Team	Rider	Horse	Round A	Round B	Total penalties	Jump-off		Prize money	Scoring points
				Penalties	Penalties		Penalties	Time (s)
1	France	Penelope Leprevost	Mylord Carthago	0	0
		Kevin Staut	Silvana	4	0
		Nicolas Delmotte	Luccianno	8	0
		Patrice Delaveau	Katchina Mail	0	did not start
				4	0	4			64,000 €	10
2	United Kingdom	Nick Skelton	Carlo	4	0
		Peter Charles	Pom d'Ami	0	4
		Ben Maher	Robin Hood W	16	0
		John Whitaker	Peppermill	4	0
				8	0	8			40,000 €	7
3	Ireland	Cameron Hanley	Southwind	8	0
		Darragh Kenny	Obelix	4	8
		Cian O'Connor	K Club Lady	4	0
		Billy Twomey	Tinka's Serenade	0	4
				8	4	12			27,500 €	5.5
	Spain	Pilar Lucrecia Cordon Muro	Herald	0	0
		Julio Arias Cueva	Jarnac	0	4
		Jesus Garmendia Echevarria	Lord du Mont Milon	4	4
		Ricardo Jurado Narvaez	Julia des Brumes	8	8
				4	8	12			27,500 €	5.5
5	Germany	Janne Friederike Meyer	Lambrasco	0	0
		Max Kühner	Coeur de Lion	8	12
		Rebecca Golasch	Lassen Peak	8	0
		Philipp Weishaupt	Souvenir	0	8
				8	8	16			15,000 €	4
6	United States	Richard Spooner	Cristallo	eliminated	0
		Beezie Madden	Mademoiselle	4	0
		Mario Deslauriers	Urico	8	4
		McLain Ward	Sapphire	4	4
				16	4	20			10,000 €	3
7	Italy	Gianni Govoni	Aboyeur W	0	8
		Giuseppe D'Onofrio	Landzeu	4	4
		Gabriele Grassi	American Blu van Eeklelec	8	4
		Natale Chiaudani	Seldana di Campalto	8	4
				12	12	24			7,000 €	[nb 1]
8	Switzerland	Niklaus Schurtenberger	Cantus	0	12
		Jane Richard	Zekina Z	8	8
		Janika Sprunger	Uptown Boy	4	8
		Pius Schwizer	Ulysse X	4	4
				8	20	28			5,000 €	2
9	Sweden	Jens Fredricson	Lunatic	4	4
		Malin Baryard-Johnsson	Actrice W	8	8
		Daniel Zetterman	Glory Days	0	12
		Helena Lundbäck	Erbblume	4	retired
				8	24	32			4,000 €	1
10	Netherlands	Eric van der Vleuten	Utascha SFN	0
		Leopold van Asten	Santana B	9
		Albert Zoer	Uraya	12
		Leon Thijssen	Tyson	8
				17					-	0
11	Poland	Andrzej Lemanski	Castiglione L	1
		Jan Chrzanowski	Just Cruising	12
		Krzysztof Ludwiczak	Torado	8
		Aleksandra Lusina	Ekwador	12
				21					-	0

(grey penalties points do not count for the team result)^[2]

The Grand Prix was the mayor competition of the Piazza di Siena 2010 horse show. The sponsor of this competition is Loro Piana. It was held at Sunday, May 30, 2010 at 4:00 pm.

The competition was a show jumping competition with two rounds, the height of the fences was up to 1.60 meters. It is endowed with 200,000 €.

	Rider	Horse	Round 1	Round 2		prize money
			Penalties	Penalties	Time (s)
1	McLain Ward	Sapphire	0	0	41.24	50,000 €
2	John Whitaker	Peppermill	0	0	43.92	40,000 €
3	Rodrigo Pessoa	Rebozo	0	0	45.09	30,000 €
4	Rebecca Golasch	Lassen Peak	0	0	47.86	20,000 €
5	Julio Arias Cueva	Victory Da	1	0	53.60	14,000 €

(Top 5 of 50 Competitors)^[3]

• Official website
• 2010 results