This is my record holder:

Task: 1981055
Sent: 17 Mar 2018, 7:30:14 UTC
Reported: 20 Mar 2018, 9:45:57 UTC
Status: Completed and validated
Run time (sec): 267,343.00
CPU time (sec): 5,230,671.00
Credit: 37,854.22
Application: YAFU-32t v134.05 (32t) windows_x86_64

This one is 80% longer than my last record holder.

Task: 1943331
Sent: 20 Mar 2018, 9:45:57 UTC
Reported: 23 Mar 2018, 8:01:38 UTC
Status: Completed and validated
Run time (sec): 252,941.00
CPU time (sec): 9,559,034.00
Credit: 36,097.01
Application: YAFU-32t v134.05 (32t) windows_x86_64

Bet you can't beat this one.
You'd think it'd get more credit than 10k.

Task: 2103181
Sent: 7 Apr 2018, 15:23:16 UTC
Reported: 18 Apr 2018, 3:00:48 UTC
Status: Completed and validated
Run time (sec): 905,852.00
CPU time (sec): 22,161,520.00
Credit: 10,285.52
Application: YAFU-32t v134.05 (32t) windows_x86_64

I'm done with 32t WU since the warm weather is coming now.