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BOSTON MARATHON 2023

Brad Heron

Bib: 4095•M

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Division (M18-39)
#0 / 5285
Top 17%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:21
Rank: #2536
Start → 5K
20:21 | 6:33/mi
10K· 6.21 mi
39:53
Rank: #2079 (+457)
5K → 10K
19:32 | 6:17/mi
15K· 9.32 mi
59:20
Rank: #1851 (+228)
10K → 15K
19:27 | 6:16/mi
20K· 12.43 mi
1:18:56
Rank: #1722 (+129)
15K → 20K
19:36 | 6:19/mi
Half· 13.11 mi
1:23:11
Rank: #1718 (+4)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:38:17
Rank: #1590 (+128)
Half → 25K
15:06 | 6:14/mi
30K· 18.64 mi
1:57:45
Rank: #1397 (+193)
25K → 30K
19:28 | 6:16/mi
20M
2:06:11
Rank: #1326 (+71)
30K → 20M
8:26 | 6:12/mi
21M
2:12:38
Rank: #1247 (+79)
20M → 21M
6:27 | 6:27/mi
35K· 21.75 mi
2:17:10
Rank: #1214 (+33)
21M → 35K
4:32 | 6:04/mi
23M
2:24:59
Rank: #1161 (+53)
35K → 23M
7:49 | 6:15/mi
24M
2:31:09
Rank: #1133 (+28)
23M → 24M
6:10 | 6:10/mi
40K· 24.85 mi
2:36:34
Rank: #1122 (+11)
24M → 40K
5:25 | 6:20/mi
25.2M
2:38:56
Rank: #1117 (+5)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:45:24
Rank: #1129 (-12)
25.2M → Finish
6:28 | 6:21/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:23:11
Pace6:21 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:22:13
Pace6:16 /mi
📊Negative Split: 1.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2320:216:3320:21
6:33
-
10K
6.21 mi10:41:5539:536:2519:32
6:17
-0:16
15K
9.32 mi11:01:2259:206:2219:27
6:16
-0:01
20K
12.43 mi11:20:581:18:566:2119:36
6:19
+0:03
Half
13.11 mi11:25:131:23:116:214:15
6:14
-0:05
25K
15.53 mi11:40:191:38:176:2015:06
6:14
0:00
30K
18.64 mi11:59:471:57:456:1919:28
6:16
+0:02
20M
20.00 mi12:08:132:06:116:198:26
6:12
-0:04
21M
21.00 mi12:14:402:12:386:196:27
6:27
+0:15
35K
21.75 mi12:19:122:17:106:184:32
6:04
-0:23
23M
23.00 mi12:27:012:24:596:187:49
6:15
+0:11
24M
24.00 mi12:33:112:31:096:186:10
6:10
-0:05
40K
24.85 mi12:38:362:36:346:185:25
6:20
+0:10
25.2M
25.20 mi12:40:582:38:566:182:22
6:52
+0:32
Finish
26.22 mi12:47:262:45:246:196:28
6:21
-0:31

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

6:04 /mi

Average Pace

6:19 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:02

99% of race

Time at Steady Pace

2:22

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:18 /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 mi10:22:2320:216:3320:21
6:33
#2536
10K
6.21 mi10:41:5539:536:2519:32
6:17
#2079
15K
9.32 mi11:01:2259:206:2219:27
6:16
#1851
20K
12.43 mi11:20:581:18:566:2119:36
6:19
#1722
Half
13.11 mi11:25:131:23:116:214:15
6:14
#1718
25K
15.53 mi11:40:191:38:176:2015:06
6:14
#1590
30K
18.64 mi11:59:471:57:456:1919:28
6:16
#1397
20M
20.00 mi12:08:132:06:116:198:26
6:12
#1326
21M
21.00 mi12:14:402:12:386:196:27
6:27
#1247
35K
21.75 mi12:19:122:17:106:184:32
6:04
#1214
23M
23.00 mi12:27:012:24:596:187:49
6:15
#1161
24M
24.00 mi12:33:112:31:096:186:10
6:10
#1133
40K
24.85 mi12:38:362:36:346:185:25
6:20
#1122
25.2M
25.20 mi12:40:582:38:566:182:22
6:52
#1117
Finish
26.22 mi12:47:262:45:246:196:28
6:21
#1129
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2536241924191460(Top 5%)1393(Top 9%)1393(Top 26%)
10K6.21 mi3.10 mi2079+4571989+4301989+4301715(Top 6%)1639(Top 11%)1639(Top 31%)
15K9.32 mi3.11 mi1851+2281770+2191770+2191460(Top 5%)1393(Top 9%)1393(Top 26%)
20K12.43 mi3.11 mi1722+1291648+1221648+1221411(Top 5%)1348(Top 9%)1348(Top 26%)
Half13.11 mi0.68 mi1718+41644+41644+41462(Top 5%)1398(Top 9%)1398(Top 26%)
25K15.53 mi2.42 mi1590+1281522+1221522+1221067(Top 4%)1016(Top 7%)1016(Top 19%)
30K18.64 mi3.11 mi1397+1931335+1871335+187829(Top 3%)789(Top 5%)789(Top 15%)
20M20.00 mi1.36 mi1326+711267+681267+68667(Top 3%)630(Top 4%)630(Top 12%)
21M21.00 mi1.00 mi1247+791192+751192+75573(Top 2%)539(Top 4%)539(Top 10%)
35K21.75 mi0.75 mi1214+331159+331159+33831(Top 3%)788(Top 5%)788(Top 15%)
23M23.00 mi1.25 mi1161+531108+511108+51709(Top 3%)669(Top 4%)669(Top 13%)
24M24.00 mi1.00 mi1133+281081+271081+27920(Top 3%)871(Top 6%)871(Top 16%)
40K24.85 mi0.85 mi1122+111070+111070+11997(Top 4%)944(Top 6%)944(Top 18%)
25.2M25.20 mi0.35 mi1117+51064+61064+61306(Top 5%)1236(Top 8%)1236(Top 23%)
Finish26.22 mi1.02 mi1129-121075-111075-111788(Top 7%)1672(Top 11%)1672(Top 32%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1460

Males

1393

M18-39

1393

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1715

Males

1639

M18-39

1639

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1460

Males

1393

M18-39

1393

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1411

Males

1348

M18-39

1348

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1462

Males

1398

M18-39

1398

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1067

Males

1016

M18-39

1016

25K→30K

15.5 - 18.6 mi

Top 3%
×9stories
+181ft-148ft

Overall

829

Males

789

M18-39

789

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

667

Males

630

M18-39

630

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

573

Males

539

M18-39

539

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

831

Males

788

M18-39

788

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

709

Males

669

M18-39

669

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

920

Males

871

M18-39

871

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

997

Males

944

M18-39

944

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1306

Males

1236

M18-39

1236

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1788

Males

1672

M18-39

1672

Passing Analysis

Category:
Athletes Passed
1483
Passed By
76
Net Change
+1407
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2536
5K → 10K46811+457#2536#2079
10K → 15K2313+228#2079#1851
15K → 20K1334+129#1851#1722
20K → Half128+4#1722#1718
Half → 25K1291+128#1718#1590
25K → 30K1952+193#1590#1397
30K → 20M732+71#1397#1326
20M → 21M790+79#1326#1247
21M → 35K363+33#1247#1214
35K → 23M541+53#1214#1161
23M → 24M302+28#1161#1133
24M → 40K2110+11#1133#1122
40K → 25.2M116+5#1122#1117
25.2M → Finish1123-12#1117#1129
TOTALS148376+1407
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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