|LV= County Championship Division Two, Swalec Stadium (day three)|
|Derbyshire 205: Slater 53, Carter 4-53|
|Glamorgan 103-4 dec: Rudolph 43, Thakor 2-11|
|Derbyshire lead by 121 runs|
|Glamorgan 3 pts, Derbyshire 1 pt|
Rain again frustrated Glamorgan as they attempted to strengthen their advantage over Derbyshire on day three.
Only 20 minutes of play was possible as the hosts, resuming on 84-2, struggled against Derbyshire's seamers in overcast conditions.
Will Bragg (14) and Colin Ingram (12) were both caught behind early to leave the home side wobbling on 103-4.
Despite trailing by 102 runs Glamorgan declared in order to improve their over-rate but rain ended play early.
With only 100 overs bowled in total so far and more rain forecast for the final day, a draw now looks the most likely result.