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BOSTON MARATHON 2023

Ken Simler

MD

Bib: 17721 M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 45%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 49%
Division (M60-64)
#0 / 1110
Top 15%
Race Day Weather
49°/39°F
light intensity drizzle

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:39/mi
23:47
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:43/mi
47:44
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:54/mi
1:12:17
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:55/mi
1:36:54
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:45/mi
1:42:11
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:54/mi
2:01:21
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:00/mi
2:26:11
↑ 181↓ 1480.2%
138 ft elev
20M
8:02/mi
2:37:06
↑ 64↓ 500.2%
148 ft elev
21M
8:33/mi
2:45:39
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:42/mi
2:51:25
↑ 17↓ 861.7%
156 ft elev
23M
8:11/mi
3:01:40
↑ 23↓ 630.6%
116 ft elev
24M
8:01/mi
3:09:41
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:23/mi
3:16:51
↓ 200.3%
20 ft elev
25.2M
9:17/mi
3:20:03
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:45/mi
3:28:58
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:42:117:48 /mi⚡ faster
2nd Half
1:46:478:09 /mi+4.5%
Positive split — 4.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
23:477:393.11 mi23:47
7:39
-
10K
47:447:413.10 mi23:57
7:43
+0:04
15K
1:12:177:453.11 mi24:33
7:54
+0:11
20K
1:36:547:483.11 mi24:37
7:55
+0:01
Half(13.11 mi)
1:42:117:480.68 mi5:17
7:45
-0:10
25K
2:01:217:492.42 mi19:10
7:54
+0:09
30K
2:26:117:513.11 mi24:50
8:00
+0:06
20M
2:37:067:511.36 mi10:55
8:02
+0:02
21M
2:45:397:531.00 mi8:33
8:33
+0:31
35K
2:51:257:530.75 mi5:46
7:42
-0:51
23M
3:01:407:541.25 mi10:15
8:11
+0:29
24M
3:09:417:541.00 mi8:01
8:01
-0:10
40K
3:16:517:550.85 mi7:10
8:23
+0:22
25.2M
3:20:037:560.35 mi3:12
9:17
+0:54
Finish(26.22 mi)
3:28:587:591.02 mi8:55
8:45
-0:32
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:39 /mi

Average Pace

7:59 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

58:47

28% of race

Time at Steady Pace

2:02:21

59% of race

Time at Slower Pace

27:50

13% of race

Average Pace: 7:58 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi11060868786871352997139713
10K3.10 mi11630-5708948-2618948-2611231592489248
15K3.11 mi12255-6259200-2529200-2521352997139713
20K3.11 mi12376-1219223-239223-231279493399339
Half(13.11 mi)0.68 mi12355+219215+89215+81219591499149
25K2.42 mi12279+769160+559160+551194588848884
30K3.11 mi11963+3168989+1718989+1711084482708270
20M1.36 mi11815+1488909+808909+801051280138013
21M1.00 mi11761+548865+448865+441075579967996
35K0.75 mi11692+698826+398826+39998676407640
23M1.25 mi11635+578778+488778+481108980208020
24M1.00 mi11611+248746+328746+321133580668066
40K0.85 mi11651-408744+28744+21256485728572
25.2M0.35 mi11690-398749-58749-51400892269226
Finish(26.22 mi)1.02 mi11945-2558837-888837-88167271048310483

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

13529

Males

9713

M60-64

9713

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

12315

Males

9248

M60-64

9248

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

13529

Males

9713

M60-64

9713

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

12794

Males

9339

M60-64

9339

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

12195

Males

9149

M60-64

9149

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

11945

Males

8884

M60-64

8884

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10844

Males

8270

M60-64

8270

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10512

Males

8013

M60-64

8013

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10755

Males

7996

M60-64

7996

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

9986

Males

7640

M60-64

7640

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11089

Males

8020

M60-64

8020

23M→24M

23.0 - 24.0 mi

Top 43%
×6story building
+12ft-82ft

Overall

11335

Males

8066

M60-64

8066

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12564

Males

8572

M60-64

8572

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14008

Males

9226

M60-64

9226

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

16727

Males

10483

M60-64

10483

Passing Analysis

Category:
▼Net Change
0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#11060
5K → 10K
680110-570
#11060 → #11630
10K → 15K
66641-625
#11630 → #12255
15K → 20K
254133-121
#12255 → #12376
20K → Half
1940+21
#12376 → #12355
Half → 25K
79155+76
#12355 → #12279
25K → 30K
60376+316
#12279 → #11963
30K → 20M
24172+148
#11963 → #11815
20M → 21M
64118+54
#11815 → #11761
21M → 35K
1887+69
#11761 → #11692
35K → 23M
65122+57
#11692 → #11635
23M → 24M
5074+24
#11635 → #11611
24M → 40K
8848-40
#11611 → #11651
40K → 25.2M
5617-39
#11651 → #11690
25.2M → Finish
27722-255
#11690 → #11945
TOTALS
24001515-885
#11060 → #11945

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing