Sat, May 1, 2027
Byron, IL
The race runs through Byron and welcomes runners, walkers, and ruckers on the same course. Ruckers carry weight for the full distance and are verified before the start rather than after. Everyone is timed, and awards go deep into age groups for both the run and ruck divisions separately.
Registration, check-in, the start, and the finish are all in the city hall parking lot, so there is no scrambling between locations on race morning.
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Going by the 2026 results, this is a small, friendly field, with a competitive front end and a big recreational middle.
3.1 Miles · 2026 results
Top 3: Henry Hazzard (18:17) · Jonathon Porter (19:54) · Sean Wight (24:26)
6.2 Miles · 2026 results
Top 3: Dan Palmer (38:55) · Alicia Kellogg (47:42) · Daniela Williams (52:10)
The Byron Rocks 5k & 10k - Run it. Walk it. Ruck it. has been held every year since at least 2018. That is as far back as RunSignup's records for this race go, so it may well be older.
Enter a finish time to see where it lands against the most recent 3.1 Miles results.
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Jul 27, 2026.
Set a goal and get a pace band: every mile split on a card sized for your phone lock screen, so race morning needs no math.
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Almost certainly not. Half the 3.1 Miles field finished slower than 34:05, and the last recorded finisher came in around 53:56, so there is a long tail of runners behind the middle of the pack. Most fields are far slower than people expect.
It is a small race (59 finishers), which is friendlier and less intimidating than a big-city event, though the field thins out. There is no qualifying time, and the finish-time spread above shows how varied the field really is. If it is your first 3.1 Miles, that spread matters more than the winner's time.
The 3.1 Miles winner ran 18:17 while the median finisher took 34:05. That spread points to a mixed field, with a competitive front and a big recreational middle.
