Personal Records:

• Bench press:
  • 225 lb for 15 repetitions
  • 245 lb for 12 repetitions
  • 285 lb for 5 repetitions
  • 300 lb for 3 repetitions
  • 325 lb for 1 repetition
• Narrow-grip bench press (6" between hands):
  • 215 lb for 7 repetitions
  • 225 lb for 6 repetitions
  • 235 lb for 6 repetitions
• Deadlift:
  • Conventional:
    • 225 lb for 15 repetitions
    • 325 lb for 12 repetitions
    • 425 lb for 1 repetition
  • Sumo:
    • 455 lb for 1 repetition
  These were done on a deadlifting platform with extra depth, making them harder than deadlifts off the floor.
• Squat:
  • 225 lb for 40 repetitions
  • 320 lb for 20 repetitions
  • 355 lb for 12 repetitions
  • 405 lb for 8 repetitions
  • 445 lb for 3 repetitions
  These were done without any gear, full depth. My maximum with full gear (wraps, belt, suit) would likely be around 650 lb. I've done 495 with wraps and a loose belt.
• Concentration curls:
  • 75 lb dumbbells for 9 repetitions
  • 80 lb dumbbells for 8 repetitions
  • 85 lb dumbbells for 8 repetitions
  • 90 lb dumbbells for 4 repetitions (followed by 85x8)
  • 100 lb dumbbells for 1 repetition
• Dumbbell bench press:
  • 100 lb dumbbells for 13 repetitions
  • 110 lb dumbbells for 10 repetitions
  • 120 lb dumbbells for 7 repetitions
  • 130 lb dumbbells for 1 repetition
  • 140 lb dumbbells for 1 repetition

Helpful tips:

• To predict the maximum that you could lift for one repetition based on the maximum for can lift for N repetitions, where N ≤ 10, you can use Matt Brzycki's formula:
  (max) = (weight)/(1.0278 - 0.0278*N).
• A simpler formula is the linear approximation of the above:
  (max) = (weight)*(36/37 + N/37).