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BOSTON MARATHON 2024

Peng Sun

Bib: 28269•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 27%
Gender (Male)
#0 / 14578
Top 38%
Masters (Masters Men)
#0 / 9729
Top 27%
Division (M40-44)
#0 / 2009
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:25/mi
23:02
↑ 97↓ 3451.5%
10K· 6.21 mi
7:12/mi
45:23
↑ 79↓ 1380.4%
15K· 9.32 mi
7:17/mi
1:08:00
↑ 67↓ 78
20K· 12.43 mi
7:25/mi
1:31:04
↑ 106↓ 860.1%
Half· 13.11 mi
7:21/mi
1:36:05
↑ 19↓ 370.5%
25K· 15.53 mi
7:33/mi
1:54:24
↑ 66↓ 880.2%
30K· 18.64 mi
7:45/mi
2:18:28
↑ 181↓ 1480.2%
20M
7:53/mi
2:29:11
↑ 64↓ 500.2%
21M
8:32/mi
2:37:43
↑ 106↓ 241.6%
35K· 21.75 mi
7:52/mi
2:43:36
↑ 17↓ 861.7%
23M
8:10/mi
2:53:50
↑ 23↓ 630.6%
24M
7:58/mi
3:01:48
↓ 821.3%
40K· 24.85 mi
8:24/mi
3:08:59
↓ 200.3%
25.2M
9:02/mi
3:12:06
↑ 13↓ 160.2%
Finish· 26.22 mi
7:37/mi
3:19:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:05
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:43:47
Pace7:55 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:38:5823:027:2523:02
7:25
-
10K
6.21 mi12:01:1945:237:1822:21
7:12
-0:13
15K
9.32 mi12:23:561:08:007:1822:37
7:17
+0:05
20K
12.43 mi12:47:001:31:047:2023:04
7:25
+0:08
Half
13.11 mi12:52:011:36:057:205:01
7:21
-0:04
25K
15.53 mi13:10:201:54:247:2218:19
7:33
+0:12
30K
18.64 mi13:34:242:18:287:2624:04
7:45
+0:12
20M
20.00 mi13:45:072:29:117:2810:43
7:53
+0:08
21M
21.00 mi13:53:392:37:437:318:32
8:32
+0:39
35K
21.75 mi13:59:322:43:367:315:53
7:52
-0:40
23M
23.00 mi14:09:462:53:507:3310:14
8:10
+0:18
24M
24.00 mi14:17:443:01:487:357:58
7:58
-0:12
40K
24.85 mi14:24:553:08:597:367:11
8:24
+0:26
25.2M
25.20 mi14:28:023:12:067:373:07
9:02
+0:38
Finish
26.22 mi14:35:483:19:527:387:46
7:37
-1:25

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

7:12 /mi

Average Pace

7:38 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:05

48% of race

Time at Steady Pace

1:14:43

37% of race

Time at Slower Pace

29:04

15% of race

Average Pace: 7:37 /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 mi11:38:5823:027:2523:02
7:25
#10029
10K
6.21 mi12:01:1945:237:1822:21
7:12
#8927
15K
9.32 mi12:23:561:08:007:1822:37
7:17
#8570
20K
12.43 mi12:47:001:31:047:2023:04
7:25
#8317
Half
13.11 mi12:52:011:36:057:205:01
7:21
#8306
25K
15.53 mi13:10:201:54:247:2218:19
7:33
#8058
30K
18.64 mi13:34:242:18:287:2624:04
7:45
#7624
20M
20.00 mi13:45:072:29:117:2810:43
7:53
#7437
21M
21.00 mi13:53:392:37:437:318:32
8:32
#7305
35K
21.75 mi13:59:322:43:367:315:53
7:52
#7216
23M
23.00 mi14:09:462:53:507:3310:14
8:10
#7106
24M
24.00 mi14:17:443:01:487:357:58
7:58
#7011
40K
24.85 mi14:24:553:08:597:367:11
8:24
#6981
25.2M
25.20 mi14:28:023:12:067:373:07
9:02
#6957
Finish
26.22 mi14:35:483:19:527:387:46
7:37
#6861
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi10029797079708007(Top 31%)6724(Top 46%)6724(Top 335%)
10K6.21 mi3.10 mi8927+11027322+6487322+6487878(Top 31%)6667(Top 46%)6667(Top 332%)
15K9.32 mi3.11 mi8570+3577107+2157107+2158007(Top 31%)6724(Top 46%)6724(Top 335%)
20K12.43 mi3.11 mi8317+2536929+1786929+1787804(Top 31%)6479(Top 44%)6479(Top 322%)
Half13.11 mi0.68 mi8306+116917+126917+127991(Top 31%)6605(Top 45%)6605(Top 329%)
25K15.53 mi2.42 mi8058+2486729+1886729+1887325(Top 29%)6017(Top 41%)6017(Top 300%)
30K18.64 mi3.11 mi7624+4346378+3516378+3516386(Top 25%)5256(Top 36%)5256(Top 262%)
20M20.00 mi1.36 mi7437+1876223+1556223+1556134(Top 24%)4933(Top 34%)4933(Top 246%)
21M21.00 mi1.00 mi7305+1326098+1256098+1256371(Top 25%)4900(Top 34%)4900(Top 244%)
35K21.75 mi0.75 mi7216+896010+886010+886931(Top 27%)5192(Top 36%)5192(Top 258%)
23M23.00 mi1.25 mi7106+1105886+1245886+1246644(Top 26%)4887(Top 34%)4887(Top 243%)
24M24.00 mi1.00 mi7011+955793+935793+936446(Top 25%)4696(Top 32%)4696(Top 234%)
40K24.85 mi0.85 mi6981+305723+705723+707832(Top 31%)5290(Top 36%)5290(Top 263%)
25.2M25.20 mi0.35 mi6957+245691+325691+326665(Top 26%)4636(Top 32%)4636(Top 231%)
Finish26.22 mi1.02 mi6861+965596+955596+956263(Top 25%)4472(Top 31%)4472(Top 223%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8007

Males

6724

M40-44

6724

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

7878

Males

6667

M40-44

6667

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8007

Males

6724

M40-44

6724

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

7804

Males

6479

M40-44

6479

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

7991

Males

6605

M40-44

6605

Half→25K

13.1 - 15.5 mi

Top 29%
×4story building
+66ft-88ft

Overall

7325

Males

6017

M40-44

6017

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6386

Males

5256

M40-44

5256

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6134

Males

4933

M40-44

4933

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6371

Males

4900

M40-44

4900

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

6931

Males

5192

M40-44

5192

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

6644

Males

4887

M40-44

4887

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

6446

Males

4696

M40-44

4696

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

7832

Males

5290

M40-44

5290

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6665

Males

4636

M40-44

4636

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

6263

Males

4472

M40-44

4472

Passing Analysis

Category:
Athletes Passed
3775*
Passed By
607
Net Change
+3168
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10029
5K → 10K1116*14+1102#10029#8927
10K → 15K39841+357#8927#8570
15K → 20K32673+253#8570#8317
20K → Half3625+11#8317#8306
Half → 25K31466+248#8306#8058
25K → 30K48349+434#8058#7624
30K → 20M21730+187#7624#7437
20M → 21M18250+132#7437#7305
21M → 35K12132+89#7305#7216
35K → 23M17767+110#7216#7106
23M → 24M13742+95#7106#7011
24M → 40K9868+30#7011#6981
40K → 25.2M4420+24#6981#6957
25.2M → Finish12630+96#6957#6861
TOTALS3775*607+3168

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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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