Jeff Duyn

MD

Bib: 5329 M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 18%
Gender (Male)
#0 / 16105
Top 29%
Masters (Masters Men)
#0 / 10463
Top 15%
Division (M65-69)
#0 / 639
Top 0.2%
Race Day Weather
50°/40°F
broken clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Mile 2
Mile 4
Mile 8
Mile 10
Mile 14
Start
0:00
Race begins
5K· 3.11 mi
6:35/mi
20:28
↑ 97↓ 345
10K· 6.21 mi
6:39/mi
41:07
↑ 79↓ 138
15K· 9.32 mi
6:44/mi
1:02:01
↑ 67↓ 78
20K· 12.43 mi
6:47/mi
1:23:06
↑ 106↓ 86
Half· 13.11 mi
6:40/mi
1:27:39
↑ 19↓ 37
25K· 15.53 mi
6:47/mi
1:44:06
↑ 66↓ 88
30K· 18.64 mi
7:03/mi
2:06:01
↑ 181↓ 148
20M
7:10/mi
2:15:45
↑ 64↓ 50
21M
7:40/mi
2:23:25
↑ 106↓ 24
35K· 21.75 mi
7:04/mi
2:28:42
↑ 17↓ 86
23M
7:22/mi
2:37:55
↑ 23↓ 63
24M
7:15/mi
2:45:10
↓ 82
40K· 24.85 mi
7:36/mi
2:51:40
↓ 20
25.2M
8:27/mi
2:54:35
↑ 13↓ 16
Finish· 26.22 mi
7:42/mi
3:02:26
↑ 22↓ 21
Course Elevation
890ft
Total climb
462ft
Range
7 to 469 ft
1,342ft
Total descent
About the height of two redwood trees

The Course

Half Splits

1st Half· via Half
1:27:396:41 /mi⚡ faster
2nd Half
1:34:477:14 /mi+8.1%
Positive split — 8.1% slower in the second half
AI Race Performance Report

Jeff's race, broken down like a coach

The full Race Story, performance analysis, segment & passing breakdowns, and where the race turned. Free to unlock — for anyone.

Free account · no payment

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
20:286:353.11 mi20:28
6:35
-
10K
41:076:373.10 mi20:39
6:39
+0:04
15K
1:02:016:393.11 mi20:54
6:44
+0:05
20K
1:23:066:413.11 mi21:05
6:47
+0:03
Half(13.11 mi)
1:27:396:410.68 mi4:33
6:40
-0:07
25K
1:44:066:422.42 mi16:27
6:47
+0:07
30K
2:06:016:463.11 mi21:55
7:03
+0:16
20M
2:15:456:471.36 mi9:44
7:10
+0:07
21M
2:23:256:501.00 mi7:40
7:40
+0:30
35K
2:28:426:500.75 mi5:17
7:04
-0:36
23M
2:37:556:521.25 mi9:13
7:22
+0:18
24M
2:45:106:531.00 mi7:15
7:15
-0:07
40K
2:51:406:540.85 mi6:30
7:36
+0:21
25.2M
2:54:356:560.35 mi2:55
8:27
+0:51
Finish(26.22 mi)
3:02:266:581.02 mi7:51
7:42
-0:45
Trend:
Faster pace
Steady pace
Slower pace
More below

See the rest of Jeff's race

Checkpoint splits, rankings, passing analysis and qualifying. One free sign-in reveals them here — and on every race you look up.

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing