15k Tempo

Ran a 15K tempo run on the track (37.5 laps) at approximately marathon pace (~3:38/km or 5:51 pace).  I took my split times at each mile (1600m to be exact).  Thinking about it now, I should have split my watch at each kilometer since that is what will be marked in Rotterdam, just like in any other European marathon.  I did take a glance at each km of the mile though.  I ran the 15K (9.3 miles) tempo in 54:22 (3:37/km or 5:50 pace).  The cardio felt very controlled and comfortable, but the legs were heavy by the end of the run. 

Splits for the run were:

5:53
5:48
5:49
5:49
5:49
5:49
5:45
5:46
5:46
2:08
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54:22 (15k or 9.3M)