The expansive 1 1/2 mile main track at Belmont Park hosted three other stakes events before the Belmont Stakes. The $300,000 Acorn Stakes (G1) at 1 mile around one turn kicks off NYRA's Triple Tiara series for 3-year-old fillies, which includes the Acorn, Mother Goose, and Coaching Club American Oaks. Davona Dale winner Amen Hallulujah was sent off as the 5-2 favorite off a 6th place finish in the Kentucky Oaks. In to challenge her included 5-1 second choice Tanda, winner of the Railbird at Hollywood last out, and 6-1 third choice Much Rejoicing, undefeated in two starts and making her stakes debut.
Champagne d'Oro was sent to the lead down the backstretch by jockey Martin Garcia and she set quick fractions of 23.61 and 46.86 with Buckleupbuttercup stalking her in second. Entering the stretch, Amen Hallelujah, who was 7th early, came out 5 wide for run and quickly closed on the leader. However, Champagne d'Oro had something left, holding off the favorite in the final furlong to win by 1/2 a length in 1:37.44 over the fast track. It was another length back to late-running Tanda third.