KINGSIDE (c, 2, Upstart–Mitigate, by Exaggerator) was sent off here with 6-1 odds and recovered from an early squeeze after the jump to track the action from fourth. Stalking a trio of leaders as they contested the pace through :22.18 and a half in :45.27, the Brendan Walsh trainee was rolling into upper stretch from four wide but with a full head of steam. Going by Overtime Bonus (Drain the Clock) despite shifting inward late, Kingside put 2 1/4 lengths on the battle for the minors behind him.The victor is the third consecutive offspring to get his picture taken from as many to the races for Mitigate, whose mother is a half to the mare who produced Canadian Horse of the Year Wonder Gadot (Medaglia d'Oro) and her full-brother SW & GSP Solemn Tribute. A half to that pair is GISW Hard Not to Love (Hard Spun). Mitigate has not produced any foals since Kingside hit the ground, and she was bred to Girvin for 2027.A second half-sister to the second dam lays claim to fame as the mother of GISW Secret Spice (Discreet Cat) while a third produced MGSP Right to Party (Constitution). Mitigate is herself a half to two stakes horses. 6th-Keeneland, $110,000, Msw, 10-2, 2yo, 6f, 1:11.61, ft, 2 1/4 lengths.KINGSIDE (c, 2, Upstart–Mitigate, by Exaggerator) Sales history: $285,000 Ylg '25 KEESEP. Lifetime Record: 1-1-0-0, $63,938. Click for the Equibase.com chart or VIDEO, sponsored by FanDuel Racing.O-Harrell Ventures LLC and Starlight Racing; B-Machmer Hall (KY); T-Brendan P. Walsh.The post Upstart’s Kingside Bests Rivals on Keeneland Opening Day appeared first on TDN | Thoroughbred Daily News | Horse Racing News, Results and Video | Thoroughbred Breeding and Auctions.