The Supersport race at the Isle of Man TT was stopped after two laps on Wednesday because of rain showers.
Michael Dunlop - winner of Monday's Superstock race - was leading by 10 seconds from his brother William when the race was halted.
The race has been rescheduled for Thursday at 1215 BST.
Keith Amor said he was fortunate to be unscathed after coming off during the race while Cameron Donald and Guy Martin also had big slides.
"I didn't know there was rain in Union Mill and I lost the back and had as big I moment as I've ever got away with," said Donald.
"Guy (Martin) had one behind me, as big as me as well, so we were both very lucky."
Michael Dunlop will start as favourite for the week's second Supersport race as he aims to add to Monday's Superstock win.
William Dunlop was happy with his performance in the two laps but played down his chances when asked if he could win Thursday's race.
"I don't think so - Michael's got a wee bit on me and he took 10 seconds off me over just two sections ," said the Wilson Craig Honda rider.
"I'm happy running a podium - that's what we came here for at the start and I'm just pleased with what I've done already.
"Wilson (Craig) has put together absolutely fantastic bikes and he's given me confidence.
"The biggest difference in me is the confidence I have now. I'm looking forward to racing the rest of year and hopefully I'll do something next year."
Michael was leading Monday's opening Supersport race but retired before the race was halted because of the incident which claimed the life of County Meath rider Derek Brien.
The younger of the Dunlop brothers also led the restarted race but again suffered mechanical gremlins.
Australian Cameron Donald led both races for a period and will be keen to make up for the disappointment of missing out on a third TT win.
Kiwi Bruce Anstey goes for a Supersport race double and Scot Keith Amor will hope to improve on his runner-up position as his physical condition continues to improve following a practice smash last week.
Honda-mounted John McGuinness and Gary Johnson are also potential winners while Guy Martin again flies the flag for Suzuki.
Manxman Daniel Kneen has shown good form all week and another top-six finish could be on the cards for the talented 23-year-old.