Hartigan, part of a heavily favored entry with Inventive, dueled with Clara's Song around the final turn and stormed away to win the $60,000 Pearl Necklace Stakes for 3-year-old fillies at Pimlico by 4 1/4 lengths. Clara's Song held second and Inventive was another 1 1/4 lengths back in third. The field for the 1 1/16-mile race, which was moved from turf to a sealed muddy track, was reduced to five after three horses scratched. Clara's Song set the early fractions of 24.39 seconds, 48.96, and 1:14.14 before yielding to Hartigan, who finished in 1:47.42 under Jozbin Santana. Hartigan improved his record to 2 for 2 in off-the-turf stakes at Pimlico, having won the $48,000 Hilltop on May 10. His overall record stands at 4-3-1 from 9 starts. Hartigan ($2.60), trained by Richard Small, earned $36,000 for owner Fitzhugh LLC.