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BOSTON MARATHON 2023

David Armstrong

Bib: 6867•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 13%
Gender (Male)
#0 / 15176
Top 22%
Masters (Masters Men)
#0 / 9891
Top 9%
Division (M40-44)
#0 / 2241
Top 23%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:26
Rank: #5533
Start → 5K
21:26 | 6:54/mi
10K· 6.21 mi
42:03
Rank: #4662 (+871)
5K → 10K
20:37 | 6:38/mi
15K· 9.32 mi
1:02:33
Rank: #4115 (+547)
10K → 15K
20:30 | 6:36/mi
20K· 12.43 mi
1:23:09
Rank: #3770 (+345)
15K → 20K
20:36 | 6:38/mi
Half· 13.11 mi
1:27:36
Rank: #3720 (+50)
20K → Half
4:27 | 6:31/mi
25K· 15.53 mi
1:43:40
Rank: #3540 (+180)
Half → 25K
16:04 | 6:38/mi
30K· 18.64 mi
2:04:56
Rank: #3451 (+89)
25K → 30K
21:16 | 6:51/mi
20M
2:14:21
Rank: #3437 (+14)
30K → 20M
9:25 | 6:56/mi
21M
2:21:50
Rank: #3489 (-52)
20M → 21M
7:29 | 7:29/mi
35K· 21.75 mi
2:26:54
Rank: #3496 (-7)
21M → 35K
5:04 | 6:46/mi
23M
2:35:44
Rank: #3502 (-6)
35K → 23M
8:50 | 7:03/mi
24M
2:42:36
Rank: #3513 (-11)
23M → 24M
6:52 | 6:52/mi
40K· 24.85 mi
2:48:34
Rank: #3501 (+12)
24M → 40K
5:58 | 6:59/mi
25.2M
2:51:09
Rank: #3498 (+3)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
2:57:59
Rank: #3488 (+10)
25.2M → Finish
6:50 | 6:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:36
Pace6:41 /mi
2nd Half
Distance13.11 mi
Time1:30:23
Pace6:54 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5321:266:5421:26
6:54
-
10K
6.21 mi10:45:3042:036:4620:37
6:38
-0:16
15K
9.32 mi11:06:001:02:336:4320:30
6:36
-0:02
20K
12.43 mi11:26:361:23:096:4120:36
6:38
+0:02
Half
13.11 mi11:31:031:27:366:414:27
6:31
-0:07
25K
15.53 mi11:47:071:43:406:4016:04
6:38
+0:07
30K
18.64 mi12:08:232:04:566:4221:16
6:51
+0:13
20M
20.00 mi12:17:482:14:216:439:25
6:56
+0:05
21M
21.00 mi12:25:172:21:506:457:29
7:29
+0:33
35K
21.75 mi12:30:212:26:546:455:04
6:46
-0:43
23M
23.00 mi12:39:112:35:446:468:50
7:03
+0:17
24M
24.00 mi12:46:032:42:366:476:52
6:52
-0:11
40K
24.85 mi12:52:012:48:346:475:58
6:59
+0:07
25.2M
25.20 mi12:54:362:51:096:482:35
7:29
+0:30
Finish
26.22 mi13:01:262:57:596:486:50
6:42
-0:47

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:31 /mi

Average Pace

6:48 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:55

94% of race

Time at Steady Pace

10:04

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:47 /mi

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

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

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

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:24:5321:266:5421:26
6:54
#5533
10K
6.21 mi10:45:3042:036:4620:37
6:38
#4662
15K
9.32 mi11:06:001:02:336:4320:30
6:36
#4115
20K
12.43 mi11:26:361:23:096:4120:36
6:38
#3770
Half
13.11 mi11:31:031:27:366:414:27
6:31
#3720
25K
15.53 mi11:47:071:43:406:4016:04
6:38
#3540
30K
18.64 mi12:08:232:04:566:4221:16
6:51
#3451
20M
20.00 mi12:17:482:14:216:439:25
6:56
#3437
21M
21.00 mi12:25:172:21:506:457:29
7:29
#3489
35K
21.75 mi12:30:212:26:546:455:04
6:46
#3496
23M
23.00 mi12:39:112:35:446:468:50
7:03
#3502
24M
24.00 mi12:46:032:42:366:476:52
6:52
#3513
40K
24.85 mi12:52:012:48:346:475:58
6:59
#3501
25.2M
25.20 mi12:54:362:51:096:482:35
7:29
#3498
Finish
26.22 mi13:01:262:57:596:486:50
6:42
#3488
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5533509750973280(Top 12%)3115(Top 21%)3115(Top 139%)
10K6.21 mi3.10 mi4662+8714347+7504347+7503761(Top 14%)3548(Top 23%)3548(Top 158%)
15K9.32 mi3.11 mi4115+5473866+4813866+4813280(Top 12%)3115(Top 21%)3115(Top 139%)
20K12.43 mi3.11 mi3770+3453561+3053561+3053052(Top 11%)2907(Top 19%)2907(Top 130%)
Half13.11 mi0.68 mi3720+503517+443517+442956(Top 11%)2831(Top 19%)2831(Top 126%)
25K15.53 mi2.42 mi3540+1803357+1603357+1602884(Top 11%)2755(Top 18%)2755(Top 123%)
30K18.64 mi3.11 mi3451+893268+893268+893289(Top 12%)3099(Top 20%)3099(Top 138%)
20M20.00 mi1.36 mi3437+143253+153253+153582(Top 13%)3341(Top 22%)3341(Top 149%)
21M21.00 mi1.00 mi3489-523305-523305-524469(Top 17%)4071(Top 27%)4071(Top 182%)
35K21.75 mi0.75 mi3496-73313-83313-83982(Top 15%)3657(Top 24%)3657(Top 163%)
23M23.00 mi1.25 mi3502-63310+33310+34038(Top 15%)3714(Top 24%)3714(Top 166%)
24M24.00 mi1.00 mi3513-113319-93319-93997(Top 15%)3645(Top 24%)3645(Top 163%)
40K24.85 mi0.85 mi3501+123307+123307+123707(Top 14%)3348(Top 22%)3348(Top 149%)
25.2M25.20 mi0.35 mi3498+33302+53302+53808(Top 14%)3398(Top 22%)3398(Top 152%)
Finish26.22 mi1.02 mi3488+103285+173285+173541(Top 13%)3166(Top 21%)3166(Top 141%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3280

Males

3115

M40-44

3115

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3761

Males

3548

M40-44

3548

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3280

Males

3115

M40-44

3115

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3052

Males

2907

M40-44

2907

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

2956

Males

2831

M40-44

2831

Half→25K

13.1 - 15.5 mi

Top 11%
×4stories
+66ft-88ft

Overall

2884

Males

2755

M40-44

2755

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3289

Males

3099

M40-44

3099

30K→20M

18.6 - 20.0 mi

Top 13%
×5stories
+64ft-50ft

Overall

3582

Males

3341

M40-44

3341

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4469

Males

4071

M40-44

4071

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

3982

Males

3657

M40-44

3657

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4038

Males

3714

M40-44

3714

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

3997

Males

3645

M40-44

3645

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3707

Males

3348

M40-44

3348

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

3808

Males

3398

M40-44

3398

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3541

Males

3166

M40-44

3166

Passing Analysis

Category:
Athletes Passed
2533
Passed By
488
Net Change
+2045
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5533
5K → 10K88615+871#5533#4662
10K → 15K5558+547#4662#4115
15K → 20K3516+345#4115#3770
20K → Half533+50#3770#3720
Half → 25K1877+180#3720#3540
25K → 30K14758+89#3540#3451
30K → 20M6349+14#3451#3437
20M → 21M3890-52#3437#3489
21M → 35K3441-7#3489#3496
35K → 23M5965-6#3496#3502
23M → 24M3647-11#3502#3513
24M → 40K4634+12#3513#3501
40K → 25.2M2118+3#3501#3498
25.2M → Finish5747+10#3498#3488
TOTALS2533488+2045
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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