Having gone down at Rotherham Titans in Round 11, Rams were edged out 7-5 in a top-of-the-table clash with Richmond under the Friday Night Lights.
Despite horrendous conditions 1,829 fans set a record-breaking Old Bath Road crowd, only for the Londoners to take a fourth-minute lead through Sam Pim, Callum Grieve with the extras.
After more than an hour of stalemate replacement Mikey Duda scored with his first touch to give the hosts’ hope, but they could not escape a second straight reverse.
Last-gasp pain at Park
This became three on the spin as a sensational Rosslyn Park start ultimately earned them a dramatic 27-26 triumph at The Rock.
The home side flew out of the blocks and led 19-0 inside 13 minutes, Arthur Ellis and Joe Luca Smith (two) with tries as Josh Bragman’s boot extended the advantage.
Fraser Honey converted a Morgan MacRae try to cut the gap, only for Sam Kennaugh’s bonus-point score to make it 24-7.
However, Zach Clow dotted down just before the break, and with Andrew Lamb and Ben Atkins also getting on the scoresheet, their side led 26-24 with Honey twice more on target.
It was star man Bragman who ultimately had the final say, though, his penalty snatching victory for Park.
The Berkshire boys returned to winning form in the final game before Christmas, however, a 31-3 success against Esher coming in front of another four-figure home crowd (1,211).
A Sam Morley penalty gave the Eees the lead midway through the first quarter, but an Axel Kalling-Smith double and one from Ben Atkins made it 17-3 at the break.
With the winter rain again falling, it took Rams until the 74th-minute to seal the bonus through Rowan Grundy, a last-play scrum penalty try finishing proceedings.
