Gym and Squash

Gym: 20*5@bd 454deg decline situps
10*5@35kg@side standing side crunch with dumbell in one hand
10*5@bd+15kg dangling leg raises
6*3@10@side standing side on cable accross body twists
3@1min@side side plancs

Squash: went well, fairly quick on my feet despite 37 degree heat.

not sure what else to do for core workouts. Think i shall include hanging from a bar leg/body raises with twist.