Glamorgan 111 for 2 (Byrom 67, Gill 34*) Trail Worcestershire 4549 December 9 (Roderich 172*, Leach 87, Barnard 75, Pollock 54, van der Guggen 4-81) by 343 runs
Glamorgan would have started the day with hopes of bowling Worcestershire out for around 300 in raining conditions, but instead the visitors continued to build their score in Cardiff.
Roderick was at the center of those efforts, but Leach was the main attacker en route to the 87, caught before James Harris was caught at the boundary.
Roderick, who only came into the team when Pakistan star Azhar Ali failed a fitness test late on his hamstring, scored his maiden century for Worcestershire and a record seventh in first-class cricket.
For example, Worcestershire, scoring 350 in the 111th over, showed no great sense of urgency when they would have earned an extra bonus point earlier.
Roderick and his teammates were clearly aiming for a career-best 171 score and were declared exactly as soon as they crossed that mark. His unbeaten 172 came off 348 balls as Worcestershire eventually posted 454 for 9.
Tim van der Guggen took 4 for 80 in 30 overs, which was the choice of the Glamorgan bowlers.
The visiting team’s victory hopes could be confused by a combination of rain and an increasingly flat pitch, with gray clouds over the last two days of the match with scorching sun and wet weather predicted.
Worcestershire got exactly the early success they wanted when Glamorgan captain David Lloyd chased down a wide ball from Ben Gibbon, only to be caught by Jack Haynes at third slip.
Ed Byrom, at the other end, was very fond of bowling, at one point scoring 38 runs out of a total of 44. The highlight was a six over midwicket off Leach.
After reaching the wicket, Gill looked completely confident and suddenly Glamorgan was scoring runs from both ends. Caught behind Gibbon with only three overs left for the day, Byromes would have been disappointed.