1. World Junior Championships: Alexander Ipatov's attempt to follow Shakhriyar Mamedyarov as the only two-time World Junior Champion was unsuccessful, but he gave it a good run. 10.5/13 is an excellent score; in fact, it's half a point more than he scored last year, when he won! This year, it wasn't enough, as Yu Yangyi scored 11/13, coasting in with a short draw by repetition with the white pieces to clinch clear first. Congratulations to both of them, and to Vidit Santosh Gujrathi as well, who came out ahead of Jorge Cori on tiebreaks; both players scored 9.5 points.
A somewhat similar story played out in the girls' division. Aleksandra Goryachkina won in the last round to clinch first with 10.5 points out of 13. Her closest pursuer, Zhansaya Abdumalik, only managed to draw her final game, but as it turned out the key for her was not to lose. She finished in second with 9.5 points, half a point ahead of Alina Kashlinskaya (the bronze medalist) and Mitra Hejazipour (no medals, but a very nice achievement by the 14th seeded player). Deysi Cori finished in the tie for 5th-9th, coming sixth on tiebreaks. This must be a double disappointment; first because she was the second seed (Kashlinskaya was the top seed, by a point) but also because she won this event two years ago. She's only 20, but her rating hasn't moved in two and a half years. I don't know if she has been putting chess on a back burner the last couple of years in pursuit of other activities (e.g. university), but if she's still serious about her chess it looks as if she should try something new.
2. Women's Grand Prix. Humpy Koneru is showing the field who is boss, winning again to push her score to 6.5/8. She leads the field by a point, and is very close to overtaking Hou Yifan in second place on the women's rating list. (Both are still well behind Judit Polgar, but what was once a seemingly unbridgeable chasm is now "merely" a large gap.) Harika Dronavalli and Kateryna Lagno remain in striking distance a point back, but as all three women have played each other (all draws) their fate is no longer in their own hands over the last three rounds.