any idea why elsworth just sat and did nothing while walsh went 6 clear

because he is bloody useless.

Be fuming if I owned/trained the horse.

He isn't good enough to be that clever

Agreed, he forced the horse to fall

Horse seems a bit quirky,maybe he was told not to get there too soon.I thought he was giving it a lot to do but to be tbf he was almost upsides at the last.