Set out to work hard, but do whatever came. Ultimately took 30 seconds off my PR. Top 10% overall and age group; moved from fourth to first (by nineteen seconds) all-time (out of 23) at the Y. P:237; C:56.
Started out thinking that I just wanted a "recovery ride", planning to break 20 minutes. Then saw that the best season time was 16:49 and my PR was 16:46, so I had to go for that. Top 5% overall; top 10% age group. Still only 3rd out of 28 all-time at the Y, but four seconds out of second place and fourteen from the record. If only I had known... P:240; C:55