Constitution River aims to defend his Eclipse title at Sandown against A Boy Named Susie, with experts split on the favorite. After a tense Prix du Jockey Club at Chantilly, where A Boy Named Susie nearly overtook Constitution River but faltered late, the rematch has analysts questioning market odds. Declan Rix argues the form could reverse, noting only four lengths separated the pair in Paris. Kate Tracey insists Constitution River’s gritty performance last time makes him unbeatable, while Sam Boswell praises his tactical advantage in a smaller field. The race hinges on whether A Boy Named Susie can close the gap or if Constitution River’s experience prevails.

The stakes extend beyond this contest, as both horses represent rival stables. A Boy Named Susie, backed by Donnacha O'Brien, seeks to build on his Tattersall’s Gold Cup third-place finish, while Constitution River aims for a 10th win in this race under Aidan O'Brien. Gethin and other contenders like King’s Gambit add tactical complexity, likely setting a cautious pace. The smaller field reduces chaos but intensifies pressure on the front-runners. Sandown’s Group 1 status amplifies the race’s significance for bettors and trainers alike, with Constitution River’s odds reflecting his perceived edge despite A Boy Named Susie’s recent form.

This clash underscores the unpredictability of elite horse racing. While Constitution River’s record at Sandown and his ability to dictate the race are advantages, A Boy Named Susie’s late surge at Chantilly suggests he can compete. The outcome could reshape seasons for both stables—A Boy Named Susie targeting a breakout campaign, Constitution River aiming to cement his legacy. For fans, it’s a reminder that form, tactics, and a horse’s temperament often decide such tight battles. As Boswell notes, Constitution River’s ability to stalk pacemakers and attack late remains his strongest suit, but A Boy Named Susie’s resilience shouldn’t be discounted.