6th-CD, $120k, Msw, 2yo, f, 6 1/2f, 3:18p.m. ETRocksie Girl (Upstart) will go to post here for Mo Speed Racing as the highest-priced juvenile purchase for her sire this year after changing hands during OBS March for $800,000. She's a half-sister to GSW & MGISP Favorable Outcome (Flatter); SW & GSP Beguine (Gun Runner); MGSW-UAE Mouheeb (Flatter); and to SW & MGSP Bellamentary (Bellamy Road) while a placed half-sister is the dam of GSW Alogon (California Chrome).Upstart claims a duo of promising juvenile fillies of late with Manuka Honey winning the GIII Pocahontas Stakes at this track and High Speed Reed becoming his newest 'TDN Rising Star, presented by Hagyard' at Churchill as well.Sent to the barn of Will Walden, Rocksie Girl has a healthy worktab to her credit over this main track and will have Axel Concepcion in the irons.To her inside, and eyeballing each other in the gate, are Maitresse (Curlin) and Razor Rockette (Life Is Good). The former is out of MSW & GSP Secret Someone (S.P. Indy), a half-sister to MGSW Private Mission (Into Mischief) and to the mother of GI Alabama Stakes heroine Dunbar Road (Quality Road). The second dam is a half-sister to multiple Grade I winner Secret Status (A.P. Indy), herself the dam of MGISP Dunkirk (Unbridled's Song) and the granddam of GISW Fair Maiden (Street Boss). Maitresse, a $460,000 Keeneland September purchase last year, is trained by Cherie DeVaux and will have Jose Ortiz in the irons.Razor Rockette is a $375,000 September buy, and is out of a full-sister to MGISW Gunite (Gun Runner) and GSW Spice Runner. The second dam is herself a half-sister to the mother of champion juvenile filly GISW Super Corredora (Gun Runner). The daughter of Life Is Good is trained by Brad Cox and Luis Saez gets the call. TJCIS PPs 8th-CD, $120k, Msw, 2yo, f, 6 1/2f, 4:22p.m. ETTop Selection (Life Is Good) leads this field as the most expensive auction purchase at $750,000 from OBS April. Out of an unraced half-sister to the late, great Pioneerof the Nile, the Brad Cox trainee is a half-sibling to GSP Harlocap (Justify). Luan Machado is in the irons here. To the far outside is Dream Street (Street Sense), a $600,000 Keeneland September purchase who is out of a winning full-sister to GISW Mastery (Candy Ride {Arg}). The second dam claims GISP Jump Start (A.P. Indy) as a half-brother. Dream Street is trained by Brendan Walsh and will have Tyler Gaffalione aboard.Between those two are Let It Go (Blame), a $400,000 OBS March purchase in training with Rodolphe Brisset, and Rockie Rockie (Mo Donegal), the third highest-priced juvenile to sell for her freshman sire this year. In training with Bob Baffert, the $370,000 OBS June grad is a half-sister to SP Expect the Boss (Danza) and hails from the immediate female family of GI Spinster victress Try Something New (Hail the Pirates). TJCIS PPs 2nd-BEL, $150k, Msw, 2yo, 1mT, 1:47p.m. ETMinority Interest (Charlatan), a $250,000 Keeneland September purchase by Klaravich Stables last year, is out of an unraced Medaglia d'Oro half-sister to two-time champion male sprinter MGISW Elite Power (Curlin). His second dam, MGSW & GISP Broadway's Alibi (Vindication), is herself a half to MGSW Golden Lad (Medaglia d'Oro) and MSW & GISP R Gypsy Gold (Bernardini). Minority Interest is trained by Chad Brown.Hold'em (Scalding) is the third horse to the races for his freshman sire, and the second to be bred/owned by Pin Oak Stud. Hailing from the immediate female family of MGSW Eskenformoney (Eskendereya) and GISW My Trusty Cat (Tale of the Cat), Hold'em looks to join GISP Induction as the newest Scalding winner (from 15 first-crop foals) to carry the Pin Oak banner. TJCIS PPsThe post Sept. 20 Insights: Well-Related Firsters Showcased at Churchill, Belmont appeared first on TDN | Thoroughbred Daily News | Horse Racing News, Results and Video | Thoroughbred Breeding and Auctions.