Derbyshire 95 for 0 (Reece 52*, Came 37*) trail Glamorgan 521 for 8 dec (Ingram 136, Cooke 70, Zain-ul-Hassan 69, Carlson 57, Root 52) by 426 runs
A combination of determined batting and rain frustrated promotion hopefuls Glamorgan on the second day of the LV=Insurance County Championship match against Derbyshire.
Only two wickets fell in two sessions with the pattern of the first day repeated in the morning as Cooke and the lower order punished some erratic bowling.
Cooke pulled Anuj Dal, who was fit to bowl after turning an ankle yesterday evening, for six on his way to a 40-ball fifty and took his team to maximum batting points by steering the medium-pacer to the third man boundary. He drove off-spinner Alex Thomson for a second six over wide long on but three overs later he edged Dal to the only slip.
Andy Gorvin, who had helped Cooke add 65 from 81 balls for the seventh wicket, was caught behind trying to turn Sam Conners to leg but Glamorgan batted on for six more overs before the declaration came.
It had been another chastening spell in the field for Derbyshire with 113 runs coming from 22 overs and in total, 322 of Glamorgan's runs had come in boundaries.
The home side was left with a potentially tricky eight overs to bat before lunch but the benign nature of the pitch meant there were few alarms for Reece and Came apart from a close run-out chance just before the interval.
Timm van der Gugten and Jamie McIlroy did beat the bat after the break but there was little encouragement for the Glamorgan attack.
Their bowlers did at least keep it tight but Reece, who became the 19th Derbyshire player to score 6,000 runs and take 150 wickets in all cricket, completed his fifty from 111 balls as he and Came batted through the second session.
It was back-to-back fifties for Reece after his unbeaten 54 against Durham on Friday but his chances of converting it into a century on Wednesday were dashed when rain arrived during the tea interval with play called off for the day at 17.10.