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BOSTON MARATHON 2023

Aaron Heun

Bib: 1656•M

CO

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 9%
Division (M18-39)
#0 / 5285
Top 22%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:11
Rank: #2242
Start → 5K
20:11 | 6:30/mi
10K· 6.21 mi
40:31
Rank: #2627 (-385)
5K → 10K
20:20 | 6:33/mi
15K· 9.32 mi
1:00:42
Rank: #2596 (+31)
10K → 15K
20:11 | 6:30/mi
20K· 12.43 mi
1:20:52
Rank: #2486 (+110)
15K → 20K
20:10 | 6:29/mi
Half· 13.11 mi
1:25:09
Rank: #2433 (+53)
20K → Half
4:17 | 6:17/mi
25K· 15.53 mi
1:40:29
Rank: #2240 (+193)
Half → 25K
15:20 | 6:19/mi
30K· 18.64 mi
2:00:05
Rank: #1927 (+313)
25K → 30K
19:36 | 6:19/mi
20M
2:08:36
Rank: #1795 (+132)
30K → 20M
8:31 | 6:16/mi
21M
2:15:11
Rank: #1708 (+87)
20M → 21M
6:35 | 6:35/mi
35K· 21.75 mi
2:19:41
Rank: #1655 (+53)
21M → 35K
4:30 | 6:01/mi
23M
2:27:37
Rank: #1593 (+62)
35K → 23M
7:56 | 6:20/mi
24M
2:33:47
Rank: #1538 (+55)
23M → 24M
6:10 | 6:10/mi
40K· 24.85 mi
2:39:07
Rank: #1484 (+54)
24M → 40K
5:20 | 6:14/mi
25.2M
2:41:28
Rank: #1478 (+6)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:47:58
Rank: #1469 (+9)
25.2M → Finish
6:30 | 6:23/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:25:09
Pace6:30 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:22:49
Pace6:19 /mi
📊Negative Split: 2.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:4120:116:3020:11
6:30
-
10K
6.21 mi10:41:0140:316:3120:20
6:33
+0:03
15K
9.32 mi11:01:121:00:426:3120:11
6:30
-0:03
20K
12.43 mi11:21:221:20:526:3020:10
6:29
-0:01
Half
13.11 mi11:25:391:25:096:304:17
6:17
-0:12
25K
15.53 mi11:40:591:40:296:2815:20
6:19
+0:02
30K
18.64 mi12:00:352:00:056:2719:36
6:19
0:00
20M
20.00 mi12:09:062:08:366:268:31
6:16
-0:03
21M
21.00 mi12:15:412:15:116:266:35
6:35
+0:19
35K
21.75 mi12:20:112:19:416:254:30
6:01
-0:34
23M
23.00 mi12:28:072:27:376:257:56
6:20
+0:19
24M
24.00 mi12:34:172:33:476:246:10
6:10
-0:10
40K
24.85 mi12:39:372:39:076:245:20
6:14
+0:04
25.2M
25.20 mi12:41:582:41:286:242:21
6:49
+0:35
Finish
26.22 mi12:48:282:47:586:256:30
6:23
-0:26

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

6:01 /mi

Average Pace

6:25 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:37

99% of race

Time at Steady Pace

2:21

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:24 /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 mi10:20:4120:116:3020:11
6:30
#2242
10K
6.21 mi10:41:0140:316:3120:20
6:33
#2627
15K
9.32 mi11:01:121:00:426:3120:11
6:30
#2596
20K
12.43 mi11:21:221:20:526:3020:10
6:29
#2486
Half
13.11 mi11:25:391:25:096:304:17
6:17
#2433
25K
15.53 mi11:40:591:40:296:2815:20
6:19
#2240
30K
18.64 mi12:00:352:00:056:2719:36
6:19
#1927
20M
20.00 mi12:09:062:08:366:268:31
6:16
#1795
21M
21.00 mi12:15:412:15:116:266:35
6:35
#1708
35K
21.75 mi12:20:112:19:416:254:30
6:01
#1655
23M
23.00 mi12:28:072:27:376:257:56
6:20
#1593
24M
24.00 mi12:34:172:33:476:246:10
6:10
#1538
40K
24.85 mi12:39:372:39:076:245:20
6:14
#1484
25.2M
25.20 mi12:41:582:41:286:242:21
6:49
#1478
Finish
26.22 mi12:48:282:47:586:256:30
6:23
#1469
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2242214021402600(Top 10%)2489(Top 16%)2489(Top 47%)
10K6.21 mi3.10 mi2627-3852507-3672507-3673063(Top 12%)2921(Top 19%)2921(Top 55%)
15K9.32 mi3.11 mi2596+312479+282479+282600(Top 10%)2489(Top 16%)2489(Top 47%)
20K12.43 mi3.11 mi2486+1102380+992380+992215(Top 8%)2125(Top 14%)2125(Top 40%)
Half13.11 mi0.68 mi2433+532332+482332+481682(Top 6%)1612(Top 11%)1612(Top 31%)
25K15.53 mi2.42 mi2240+1932147+1852147+1851426(Top 5%)1363(Top 9%)1363(Top 26%)
30K18.64 mi3.11 mi1927+3131844+3031844+303933(Top 4%)888(Top 6%)888(Top 17%)
20M20.00 mi1.36 mi1795+1321715+1291715+129805(Top 3%)765(Top 5%)765(Top 14%)
21M21.00 mi1.00 mi1708+871634+811634+81839(Top 3%)795(Top 5%)795(Top 15%)
35K21.75 mi0.75 mi1655+531582+521582+52738(Top 3%)698(Top 5%)698(Top 13%)
23M23.00 mi1.25 mi1593+621523+591523+59937(Top 4%)892(Top 6%)892(Top 17%)
24M24.00 mi1.00 mi1538+551469+541469+54927(Top 3%)878(Top 6%)878(Top 17%)
40K24.85 mi0.85 mi1484+541416+531416+53749(Top 3%)710(Top 5%)710(Top 13%)
25.2M25.20 mi0.35 mi1478+61411+51411+51194(Top 4%)1133(Top 7%)1133(Top 21%)
Finish26.22 mi1.02 mi1469+91402+91402+91908(Top 7%)1779(Top 12%)1779(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2600

Males

2489

M18-39

2489

5K→10K

3.1 - 6.2 mi

Top 12%
×5stories
+79ft-138ft

Overall

3063

Males

2921

M18-39

2921

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2600

Males

2489

M18-39

2489

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2215

Males

2125

M18-39

2125

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1682

Males

1612

M18-39

1612

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1426

Males

1363

M18-39

1363

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

933

Males

888

M18-39

888

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

805

Males

765

M18-39

765

20M→21M

20.0 - 21.0 mi

Top 3%
×8stories
+106ft-24ft

Overall

839

Males

795

M18-39

795

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

738

Males

698

M18-39

698

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

937

Males

892

M18-39

892

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

927

Males

878

M18-39

878

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

749

Males

710

M18-39

710

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1194

Males

1133

M18-39

1133

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1908

Males

1779

M18-39

1779

Passing Analysis

Category:
Athletes Passed
1313
Passed By
540
Net Change
+773
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2242
5K → 10K27412-385#2242#2627
10K → 15K9665+31#2627#2596
15K → 20K13020+110#2596#2486
20K → Half530+53#2486#2433
Half → 25K1952+193#2433#2240
25K → 30K3152+313#2240#1927
30K → 20M1320+132#1927#1795
20M → 21M881+87#1795#1708
21M → 35K541+53#1708#1655
35K → 23M664+62#1655#1593
23M → 24M594+55#1593#1538
24M → 40K562+54#1538#1484
40K → 25.2M137+6#1484#1478
25.2M → Finish2920+9#1478#1469
TOTALS1313540+773
📊

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