Why did you have a flat last night? Did something poke through the tread, or was the leak on the inside of the tube? What kind of rim strips do you currently have, and what condition are they in? Velox cloth rim tape is tougher and more secure than the rubber ones. If you're running rubber strips currently, consider changing to velox. If you've already got velox, and it's in good shape and you haven't gotten any tube punctures on the rim side of the tube, then leave well enough alone. You'll definitely want a new tube since it's flat - don't bother patching since you want reliability in a race.
Oil is good, grease is better.
2007 Peter Mooney w/S&S couplers/Terry Butterfly
1993 Bridgestone MB-3/Avocet O2 Air 40W
1980 Columbus Frame with 1970 Campy parts
1954 Raleigh 3-speed/Brooks B72