Hot conditions held back fast times at the Gifu Seiryu Half Marathon Sunday, where Ugandan Stella Chesang and Kenya Hillary Kipkoech took the top spots over last year's winners Dolphine Nyaboke Omare and Amos Kurgat.In the women's race Chesang, Omare and Kenyan-born Bahraini Eunice Chebichii Chumba went out as a trio, Japan-based Hellen Ekarare with them initially but eventually dropping out.