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BOSTON MARATHON 2023

Brian Armstrong

Bib: 30908•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:50
Rank: #24078
Start → 5K
31:50 | 10:15/mi
10K· 6.21 mi
1:03:26
Rank: #24080 (-2)
5K → 10K
31:36 | 10:10/mi
15K· 9.32 mi
1:35:48
Rank: #24169 (-89)
10K → 15K
32:22 | 10:25/mi
20K· 12.43 mi
2:09:55
Rank: #24335 (-166)
15K → 20K
34:07 | 10:59/mi
Half· 13.11 mi
2:17:15
Rank: #24354 (-19)
20K → Half
7:20 | 10:45/mi
25K· 15.53 mi
2:44:49
Rank: #24378 (-24)
Half → 25K
27:34 | 11:22/mi
30K· 18.64 mi
3:22:12
Rank: #24443 (-65)
25K → 30K
37:23 | 12:02/mi
20M
3:39:49
Rank: #24517 (-74)
30K → 20M
17:37 | 12:58/mi
21M
3:54:03
Rank: #24609 (-92)
20M → 21M
14:14 | 14:14/mi
35K· 21.75 mi
4:03:27
Rank: #24652 (-43)
21M → 35K
9:24 | 12:34/mi
23M
4:19:26
Rank: #24668 (-16)
35K → 23M
15:59 | 12:46/mi
24M
4:32:40
Rank: #24762 (-94)
23M → 24M
13:14 | 13:14/mi
40K· 24.85 mi
4:44:30
Rank: #24836 (-74)
24M → 40K
11:50 | 13:50/mi
25.2M
4:49:32
Rank: #24858 (-22)
40K → 25.2M
5:02 | 14:36/mi
Finish· 26.22 mi
5:01:55
Rank: #24906 (-48)
25.2M → Finish
12:23 | 12:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:17:15
Pace10:28 /mi
2nd Half
Distance13.11 mi
Time2:44:40
Pace12:34 /mi
📊Positive Split: 20.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:2031:5010:1531:50
10:15
-
10K
6.21 mi12:21:561:03:2610:1331:36
10:10
-0:05
15K
9.32 mi12:54:181:35:4810:1732:22
10:25
+0:15
20K
12.43 mi13:28:252:09:5510:2734:07
10:59
+0:34
Half
13.11 mi13:35:452:17:1510:287:20
10:45
-0:14
25K
15.53 mi14:03:192:44:4910:3727:34
11:22
+0:37
30K
18.64 mi14:40:423:22:1210:5137:23
12:02
+0:40
20M
20.00 mi14:58:193:39:4910:5917:37
12:58
+0:56
21M
21.00 mi15:12:333:54:0311:0914:14
14:14
+1:16
35K
21.75 mi15:21:574:03:2711:129:24
12:34
-1:40
23M
23.00 mi15:37:564:19:2611:1715:59
12:46
+0:12
24M
24.00 mi15:51:104:32:4011:2213:14
13:14
+0:28
40K
24.85 mi16:03:004:44:3011:2711:50
13:50
+0:36
25.2M
25.20 mi16:08:024:49:3211:295:02
14:36
+0:46
Finish
26.22 mi16:20:255:01:5511:3112:23
12:09
-2:27

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

10:10 /mi

Average Pace

11:31 /mi

Slowest Pace

14:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:44:49

55% of race

Time at Steady Pace

1:15:09

25% of race

Time at Slower Pace

1:01:57

21% of race

Average Pace: 11:31 /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 mi11:50:2031:5010:1531:50
10:15
#24078
10K
6.21 mi12:21:561:03:2610:1331:36
10:10
#24080
15K
9.32 mi12:54:181:35:4810:1732:22
10:25
#24169
20K
12.43 mi13:28:252:09:5510:2734:07
10:59
#24335
Half
13.11 mi13:35:452:17:1510:287:20
10:45
#24354
25K
15.53 mi14:03:192:44:4910:3727:34
11:22
#24378
30K
18.64 mi14:40:423:22:1210:5137:23
12:02
#24443
20M
20.00 mi14:58:193:39:4910:5917:37
12:58
#24517
21M
21.00 mi15:12:333:54:0311:0914:14
14:14
#24609
35K
21.75 mi15:21:574:03:2711:129:24
12:34
#24652
23M
23.00 mi15:37:564:19:2611:1715:59
12:46
#24668
24M
24.00 mi15:51:104:32:4011:2213:14
13:14
#24762
40K
24.85 mi16:03:004:44:3011:2711:50
13:50
#24836
25.2M
25.20 mi16:08:024:49:3211:295:02
14:36
#24858
Finish
26.22 mi16:20:255:01:5511:3112:23
12:09
#24906
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi24078141281412824310(Top 91%)14228(Top 94%)14228(Top 693%)
10K6.21 mi3.10 mi24080-214121+714121+724064(Top 90%)14120(Top 93%)14120(Top 688%)
15K9.32 mi3.11 mi24169-8914163-4214163-4224310(Top 91%)14228(Top 94%)14228(Top 693%)
20K12.43 mi3.11 mi24335-16614231-6814231-6824610(Top 92%)14326(Top 94%)14326(Top 698%)
Half13.11 mi0.68 mi24354-1914238-714238-724590(Top 92%)14307(Top 94%)14307(Top 697%)
25K15.53 mi2.42 mi24378-2414239-114239-124503(Top 92%)14250(Top 94%)14250(Top 694%)
30K18.64 mi3.11 mi24443-6514249-1014249-1024534(Top 92%)14209(Top 94%)14209(Top 692%)
20M20.00 mi1.36 mi24517-7414277-2814277-2825138(Top 94%)14447(Top 95%)14447(Top 704%)
21M21.00 mi1.00 mi24609-9214313-3614313-3625232(Top 95%)14483(Top 95%)14483(Top 706%)
35K21.75 mi0.75 mi24652-4314319-614319-625236(Top 95%)14436(Top 95%)14436(Top 704%)
23M23.00 mi1.25 mi24668-16143191431924861(Top 93%)14270(Top 94%)14270(Top 695%)
24M24.00 mi1.00 mi24762-9414348-2914348-2925635(Top 96%)14616(Top 96%)14616(Top 712%)
40K24.85 mi0.85 mi24836-7414373-2514373-2525592(Top 96%)14598(Top 96%)14598(Top 711%)
25.2M25.20 mi0.35 mi24858-2214380-714380-725452(Top 96%)14523(Top 96%)14523(Top 708%)
Finish26.22 mi1.02 mi24906-4814394-1414394-1425377(Top 95%)14498(Top 96%)14498(Top 707%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

24310

Males

14228

M50-54

14228

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

24064

Males

14120

M50-54

14120

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

24310

Males

14228

M50-54

14228

15K→20K

9.3 - 12.4 mi

Top 92%
×5stories
+106ft-86ft

Overall

24610

Males

14326

M50-54

14326

20K→Half

12.4 - 13.1 mi

Top 92%
×2stories
+19ft-37ft

Overall

24590

Males

14307

M50-54

14307

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

24503

Males

14250

M50-54

14250

25K→30K

15.5 - 18.6 mi

Top 92%
×9stories
+181ft-148ft

Overall

24534

Males

14209

M50-54

14209

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

25138

Males

14447

M50-54

14447

20M→21M

20.0 - 21.0 mi

Top 95%
×8stories
+106ft-24ft

Overall

25232

Males

14483

M50-54

14483

21M→35K

21.0 - 21.8 mi

Top 95%
×7stories
+17ft-86ft

Overall

25236

Males

14436

M50-54

14436

35K→23M

21.8 - 23.0 mi

Top 93%
×5stories
+23ft-63ft

Overall

24861

Males

14270

M50-54

14270

23M→24M

23.0 - 24.0 mi

Top 96%
×6stories
+12ft-82ft

Overall

25635

Males

14616

M50-54

14616

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

25592

Males

14598

M50-54

14598

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

25452

Males

14523

M50-54

14523

25.2M→Finish

25.2 - 26.2 mi

Top 95%
×2stories
+22ft-21ft

Overall

25377

Males

14498

M50-54

14498

Passing Analysis

Category:
Athletes Passed
632
Passed By
1460
Net Change
-828
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24078
5K → 10K203205-2#24078#24080
10K → 15K84173-89#24080#24169
15K → 20K62228-166#24169#24335
20K → Half1534-19#24335#24354
Half → 25K6791-24#24354#24378
25K → 30K93158-65#24378#24443
30K → 20M2296-74#24443#24517
20M → 21M14106-92#24517#24609
21M → 35K1255-43#24609#24652
35K → 23M3551-16#24652#24668
23M → 24M397-94#24668#24762
24M → 40K1185-74#24762#24836
40K → 25.2M325-22#24836#24858
25.2M → Finish856-48#24858#24906
TOTALS6321460-828
📊

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