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BOSTON MARATHON 2023

David Muir

Bib: 1474•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 5%
Gender (Male)
#0 / 15176
Top 8%
Division (M18-39)
#0 / 5285
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:31
Rank: #1387
Start → 5K
19:31 | 6:17/mi
10K· 6.21 mi
38:49
Rank: #1369 (+18)
5K → 10K
19:18 | 6:13/mi
15K· 9.32 mi
58:13
Rank: #1362 (+7)
10K → 15K
19:24 | 6:15/mi
20K· 12.43 mi
1:17:40
Rank: #1315 (+47)
15K → 20K
19:27 | 6:16/mi
Half· 13.11 mi
1:21:52
Rank: #1303 (+12)
20K → Half
4:12 | 6:09/mi
25K· 15.53 mi
1:37:05
Rank: #1290 (+13)
Half → 25K
15:13 | 6:17/mi
30K· 18.64 mi
1:57:09
Rank: #1284 (+6)
25K → 30K
20:04 | 6:28/mi
20M
2:05:58
Rank: #1285 (-1)
30K → 20M
8:49 | 6:29/mi
21M
2:12:52
Rank: #1300 (-15)
20M → 21M
6:54 | 6:54/mi
35K· 21.75 mi
2:17:39
Rank: #1311 (-11)
21M → 35K
4:47 | 6:24/mi
23M
2:25:48
Rank: #1298 (+13)
35K → 23M
8:09 | 6:31/mi
24M
2:32:22
Rank: #1311 (-13)
23M → 24M
6:34 | 6:34/mi
40K· 24.85 mi
2:38:06
Rank: #1334 (-23)
24M → 40K
5:44 | 6:42/mi
25.2M
2:40:37
Rank: #1347 (-13)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:47:07
Rank: #1347
25.2M → Finish
6:30 | 6:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:52
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:25:15
Pace6:30 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:0419:316:1719:31
6:17
-
10K
6.21 mi10:39:2238:496:1519:18
6:13
-0:04
15K
9.32 mi10:58:4658:136:1519:24
6:15
+0:02
20K
12.43 mi11:18:131:17:406:1519:27
6:16
+0:01
Half
13.11 mi11:22:251:21:526:154:12
6:09
-0:07
25K
15.53 mi11:37:381:37:056:1515:13
6:17
+0:08
30K
18.64 mi11:57:421:57:096:1720:04
6:28
+0:11
20M
20.00 mi12:06:312:05:586:188:49
6:29
+0:01
21M
21.00 mi12:13:252:12:526:206:54
6:54
+0:25
35K
21.75 mi12:18:122:17:396:204:47
6:24
-0:30
23M
23.00 mi12:26:212:25:486:208:09
6:31
+0:07
24M
24.00 mi12:32:552:32:226:216:34
6:34
+0:03
40K
24.85 mi12:38:392:38:066:225:44
6:42
+0:08
25.2M
25.20 mi12:41:102:40:376:222:31
7:18
+0:36
Finish
26.22 mi12:47:402:47:076:236:30
6:23
-0:55

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

6:09 /mi

Average Pace

6:23 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:42

94% of race

Time at Steady Pace

6:54

4% of race

Time at Slower Pace

2:31

2% of race

Average Pace: 6:22 /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 mi10:20:0419:316:1719:31
6:17
#1387
10K
6.21 mi10:39:2238:496:1519:18
6:13
#1369
15K
9.32 mi10:58:4658:136:1519:24
6:15
#1362
20K
12.43 mi11:18:131:17:406:1519:27
6:16
#1315
Half
13.11 mi11:22:251:21:526:154:12
6:09
#1303
25K
15.53 mi11:37:381:37:056:1515:13
6:17
#1290
30K
18.64 mi11:57:421:57:096:1720:04
6:28
#1284
20M
20.00 mi12:06:312:05:586:188:49
6:29
#1285
21M
21.00 mi12:13:252:12:526:206:54
6:54
#1300
35K
21.75 mi12:18:122:17:396:204:47
6:24
#1311
23M
23.00 mi12:26:212:25:486:208:09
6:31
#1298
24M
24.00 mi12:32:552:32:226:216:34
6:34
#1311
40K
24.85 mi12:38:392:38:066:225:44
6:42
#1334
25.2M
25.20 mi12:41:102:40:376:222:31
7:18
#1347
Finish
26.22 mi12:47:402:47:076:236:30
6:23
#1347
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1387131813181421(Top 5%)1354(Top 9%)1354(Top 26%)
10K6.21 mi3.10 mi1369+181303+151303+151407(Top 5%)1342(Top 9%)1342(Top 25%)
15K9.32 mi3.11 mi1362+71297+61297+61421(Top 5%)1354(Top 9%)1354(Top 26%)
20K12.43 mi3.11 mi1315+471252+451252+451264(Top 5%)1209(Top 8%)1209(Top 23%)
Half13.11 mi0.68 mi1303+121241+111241+111234(Top 5%)1182(Top 8%)1182(Top 22%)
25K15.53 mi2.42 mi1290+131231+101231+101261(Top 5%)1204(Top 8%)1204(Top 23%)
30K18.64 mi3.11 mi1284+61226+51226+51422(Top 5%)1360(Top 9%)1360(Top 26%)
20M20.00 mi1.36 mi1285-11227-11227-11429(Top 5%)1360(Top 9%)1360(Top 26%)
21M21.00 mi1.00 mi1300-151242-151242-151783(Top 7%)1695(Top 11%)1695(Top 32%)
35K21.75 mi0.75 mi1311-111252-101252-101989(Top 7%)1887(Top 12%)1887(Top 36%)
23M23.00 mi1.25 mi1298+131239+131239+131477(Top 6%)1402(Top 9%)1402(Top 27%)
24M24.00 mi1.00 mi1311-131250-111250-112431(Top 9%)2267(Top 15%)2267(Top 43%)
40K24.85 mi0.85 mi1334-231271-211271-212418(Top 9%)2238(Top 15%)2238(Top 42%)
25.2M25.20 mi0.35 mi1347-131283-121283-123048(Top 11%)2773(Top 18%)2773(Top 52%)
Finish26.22 mi1.02 mi1347128312831962(Top 7%)1828(Top 12%)1828(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1421

Males

1354

M18-39

1354

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1407

Males

1342

M18-39

1342

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1421

Males

1354

M18-39

1354

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1264

Males

1209

M18-39

1209

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1234

Males

1182

M18-39

1182

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1261

Males

1204

M18-39

1204

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1422

Males

1360

M18-39

1360

30K→20M

18.6 - 20.0 mi

Top 5%
×5stories
+64ft-50ft

Overall

1429

Males

1360

M18-39

1360

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1783

Males

1695

M18-39

1695

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1989

Males

1887

M18-39

1887

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1477

Males

1402

M18-39

1402

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2431

Males

2267

M18-39

2267

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2418

Males

2238

M18-39

2238

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3048

Males

2773

M18-39

2773

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1962

Males

1828

M18-39

1828

Passing Analysis

Category:
Athletes Passed
435
Passed By
395
Net Change
+40
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1387
5K → 10K7860+18#1387#1369
10K → 15K5346+7#1369#1362
15K → 20K7225+47#1362#1315
20K → Half153+12#1315#1303
Half → 25K3017+13#1303#1290
25K → 30K4539+6#1290#1284
30K → 20M2223-1#1284#1285
20M → 21M2136-15#1285#1300
21M → 35K1324-11#1300#1311
35K → 23M3219+13#1311#1298
23M → 24M1629-13#1298#1311
24M → 40K1134-23#1311#1334
40K → 25.2M215-13#1334#1347
25.2M → Finish25250#1347#1347
TOTALS435395+40
📊

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