Claudia Acerenza Maríez (born 15 January 1966) is a retired Uruguayan sprinter who competed in the 200 and 400 metres.^[2] She represented her country at the 1988 Summer Olympics as well as two outdoor and two indoor World Championships. Her twin sister, Soledad Acerenza was also a sprinter.

She still holds national records on several sprinting distances.

International competitions

Year	Competition	Venue	Position	Event	Notes
Representing  Uruguay
1983	South American Championships	Santa Fe, Argentina	5th (h)	400 m	57.7
			2nd	4 × 100 m relay	47.7
			3rd	4 × 100 m relay	3:55.9
1984	South American Junior Championships	Caracas, Venezuela	5th	100 m	12.18
			4th	200 m	24.91
			3rd	4 × 100 m relay	47.55
			2nd	4 × 400 m relay	3:51.08
1985	South American Championships	Santiago, Chile	7th	100 m	12.42
			6th	200 m	24.73
			4th	4 × 100 m relay	46.80
			2nd	4 × 400 m relay	3:41.49
	South American Junior Championships	Santa Fe, Argentina	2nd	200 m	24.78
			1st	4 × 100 m relay	47.72
			2nd	4 × 400 m relay	3:41.49
1986	Ibero-American Championships	Havana, Cuba	6th	100 m	12.16
			6th	200 m	24.49 (w)
			8th	400 m	55.62
			4th	4 × 100 m relay	47.58
			5th	4 × 400 m relay	3:54.14
	South American Games	Santiago, Chile	2nd	100 m	11.99
			2nd	200 m	24.30
			1st	4 × 100 m relay	46.69
1987	Pan American Games	Indianapolis, United States	6th (h)	100 m	11.63
			8th (h)	200 m	24.21
			6th	4 × 400 m relay	3:53.76
	World Championships	Rome, Italy	20th (h)	200 m	24.24
	South American Championships	São Paulo, Brazil	4th	100 m	11.96
			4th	200 m	24.16
			3rd	4 × 100 m relay	46.54
			4th	4 × 400 m relay	3:47.46
1988	Ibero-American Championships	Mexico City, Mexico	8th	100 m	11.92
			6th	200 m	23.78
			–	4 × 400 m relay	DQ
	Olympic Games	Seoul, South Korea	49th (h)	100 m	12.11
			41st (h)	200 m	24.46
1989	World Indoor Championships	Budapest, Hungary	–	200 m	DQ
	South American Championships	Medellín, Colombia	7th	100 m	11.9
			5th	200 m	24.07
			3rd	4 × 100 m relay	46.61
			3rd	4 × 400 m relay	3:44.0
1990	Ibero-American Championships	Manaus, Brazil	5th	200 m	24.62
			6th	400 m	54.69
			3rd	4 × 100 m relay	47.10
			3rd	4 × 400 m relay	3:43.6
	South American Games	Lima, Peru	2nd	100 m	12.20
			2nd	200 m	25.75
			2nd	400 m	55.22
1991	World Indoor Championships	Seville, Spain	19th (h)	200 m	25.69
			15th (h)	400 m	56.57
	South American Championships	Manaus, Brazil	5th	200 m	24.27
			4th	400 m	54.55
			5th	4 × 100 m relay	46.61
			3rd	4 × 400 m relay	3:40.19
	Pan American Games	Havana, Cuba	12th (h)	200 m	24.85
			11th (h)	400 m	55.43
			6th	4 × 400 m relay	3:50.93
	World Championships	Tokyo, Japan	24th (h)	200 m	24.66
			28th (h)	400 m	55.82
1992	Ibero-American Championships	Seville, Spain	9th (h)	200 m	24.70
			10th (h)	400 m	56.25
			5th	4 × 100 m relay	46.51
			3rd	4 × 400 m relay	3:46.73
1994	Ibero-American Championships	Mar del Plata, Argentina	9th	100 m	12.43
			5th	4 × 100 m relay	47.01
			4th	4 × 400 m relay	3:46.24
1997	South American Championships	Mar del Plata, Argentina	8th	100 m	12.36
			4th	4 × 100 m relay	47.72
			4th	4 × 400 m relay	3:55.85

Personal bests

Outdoor

• 100 metres – 11.54 (Mexico City 1988) NR
• 200 metres – 23.78 (Mexico City 1988) NR
• 400 metres – 55.82 (Tokyo 1991)

Indoor

• 200 metres – 25.69 (Seville 1991)
• 400 metres – 56.57 (Seville 1991) NR