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BOSTON MARATHON 2024

Shifang Sun

Bib: 19147•M

GA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M60-64)
#0 / 1173
Top 39%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:53
Rank: #16816
Start → 5K
25:53 | 8:20/mi
10K· 6.21 mi
51:38
Rank: #16401 (+415)
5K → 10K
25:45 | 8:17/mi
15K· 9.32 mi
1:17:37
Rank: #16083 (+318)
10K → 15K
25:59 | 8:22/mi
20K· 12.43 mi
1:44:02
Rank: #15672 (+411)
15K → 20K
26:25 | 8:30/mi
Half· 13.11 mi
1:49:42
Rank: #15623 (+49)
20K → Half
5:40 | 8:18/mi
25K· 15.53 mi
2:11:24
Rank: #15548 (+75)
Half → 25K
21:42 | 8:57/mi
30K· 18.64 mi
2:42:04
Rank: #15856 (-308)
25K → 30K
30:40 | 9:52/mi
20M
2:55:20
Rank: #15854 (+2)
30K → 20M
13:16 | 9:46/mi
21M
3:05:38
Rank: #15760 (+94)
20M → 21M
10:18 | 10:18/mi
35K· 21.75 mi
3:12:06
Rank: #15595 (+165)
21M → 35K
6:28 | 8:39/mi
23M
3:23:28
Rank: #15346 (+249)
35K → 23M
11:22 | 9:05/mi
24M
3:31:59
Rank: #15085 (+261)
23M → 24M
8:31 | 8:31/mi
40K· 24.85 mi
3:39:30
Rank: #14826 (+259)
24M → 40K
7:31 | 8:47/mi
25.2M
3:42:58
Rank: #14738 (+88)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:54:45
Rank: #15252 (-514)
25.2M → Finish
11:47 | 11:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:42
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time2:05:03
Pace9:32 /mi
📊Positive Split: 14.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0125:538:2025:53
8:20
-
10K
6.21 mi11:44:4651:388:1925:45
8:17
-0:03
15K
9.32 mi12:10:451:17:378:2025:59
8:22
+0:05
20K
12.43 mi12:37:101:44:028:2226:25
8:30
+0:08
Half
13.11 mi12:42:501:49:428:225:40
8:18
-0:12
25K
15.53 mi13:04:322:11:248:2821:42
8:57
+0:39
30K
18.64 mi13:35:122:42:048:4230:40
9:52
+0:55
20M
20.00 mi13:48:282:55:208:4613:16
9:46
-0:06
21M
21.00 mi13:58:463:05:388:5010:18
10:18
+0:32
35K
21.75 mi14:05:143:12:068:506:28
8:39
-1:39
23M
23.00 mi14:16:363:23:288:5111:22
9:05
+0:26
24M
24.00 mi14:25:073:31:598:508:31
8:31
-0:34
40K
24.85 mi14:32:383:39:308:507:31
8:47
+0:16
25.2M
25.20 mi14:36:063:42:588:513:28
10:03
+1:16
Finish
26.22 mi14:47:533:54:458:5811:47
11:34
+1:31

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

8:17 /mi

Average Pace

8:58 /mi

Slowest Pace

11:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

31:25

13% of race

Time at Steady Pace

2:13:51

57% of race

Time at Slower Pace

1:09:29

30% of race

Average Pace: 8:57 /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 mi11:19:0125:538:2025:53
8:20
#16816
10K
6.21 mi11:44:4651:388:1925:45
8:17
#16401
15K
9.32 mi12:10:451:17:378:2025:59
8:22
#16083
20K
12.43 mi12:37:101:44:028:2226:25
8:30
#15672
Half
13.11 mi12:42:501:49:428:225:40
8:18
#15623
25K
15.53 mi13:04:322:11:248:2821:42
8:57
#15548
30K
18.64 mi13:35:122:42:048:4230:40
9:52
#15856
20M
20.00 mi13:48:282:55:208:4613:16
9:46
#15854
21M
21.00 mi13:58:463:05:388:5010:18
10:18
#15760
35K
21.75 mi14:05:143:12:068:506:28
8:39
#15595
23M
23.00 mi14:16:363:23:288:5111:22
9:05
#15346
24M
24.00 mi14:25:073:31:598:508:31
8:31
#15085
40K
24.85 mi14:32:383:39:308:507:31
8:47
#14826
25.2M
25.20 mi14:36:063:42:588:513:28
10:03
#14738
Finish
26.22 mi14:47:533:54:458:5811:47
11:34
#15252
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi16816107251072515620(Top 61%)10248(Top 70%)10248(Top 874%)
10K6.21 mi3.10 mi16401+41510562+16310562+16316043(Top 63%)10446(Top 72%)10446(Top 891%)
15K9.32 mi3.11 mi16083+31810439+12310439+12315620(Top 61%)10248(Top 70%)10248(Top 874%)
20K12.43 mi3.11 mi15672+41110259+18010259+18014823(Top 58%)9895(Top 68%)9895(Top 844%)
Half13.11 mi0.68 mi15623+4910239+2010239+2014590(Top 57%)9756(Top 67%)9756(Top 832%)
25K15.53 mi2.42 mi15548+7510179+6010179+6015288(Top 60%)9923(Top 68%)9923(Top 846%)
30K18.64 mi3.11 mi15856-30810237-5810237-5816893(Top 66%)10406(Top 71%)10406(Top 887%)
20M20.00 mi1.36 mi15854+210193+4410193+4415593(Top 61%)9562(Top 66%)9562(Top 815%)
21M21.00 mi1.00 mi15760+9410107+8610107+8614118(Top 55%)8715(Top 60%)8715(Top 743%)
35K21.75 mi0.75 mi15595+16510014+9310014+9311529(Top 45%)7470(Top 51%)7470(Top 637%)
23M23.00 mi1.25 mi15346+2499862+1529862+15211569(Top 45%)7354(Top 50%)7354(Top 627%)
24M24.00 mi1.00 mi15085+2619721+1419721+1419551(Top 37%)6321(Top 43%)6321(Top 539%)
40K24.85 mi0.85 mi14826+2599563+1589563+1589850(Top 39%)6336(Top 43%)6336(Top 540%)
25.2M25.20 mi0.35 mi14738+889507+569507+5611150(Top 44%)6975(Top 48%)6975(Top 595%)
Finish26.22 mi1.02 mi15252-5149716-2099716-20922532(Top 88%)12774(Top 88%)12774(Top 1089%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21stories
+97ft-345ft

Overall

15620

Males

10248

M60-64

10248

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

16043

Males

10446

M60-64

10446

10K→15K

6.2 - 9.3 mi

Top 61%
×3stories
+67ft-78ft

Overall

15620

Males

10248

M60-64

10248

15K→20K

9.3 - 12.4 mi

Top 58%
×5stories
+106ft-86ft

Overall

14823

Males

9895

M60-64

9895

20K→Half

12.4 - 13.1 mi

Top 57%
×2stories
+19ft-37ft

Overall

14590

Males

9756

M60-64

9756

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

15288

Males

9923

M60-64

9923

25K→30K

15.5 - 18.6 mi

Top 66%
×9stories
+181ft-148ft

Overall

16893

Males

10406

M60-64

10406

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

15593

Males

9562

M60-64

9562

20M→21M

20.0 - 21.0 mi

Top 55%
×8stories
+106ft-24ft

Overall

14118

Males

8715

M60-64

8715

21M→35K

21.0 - 21.8 mi

Top 45%
×7stories
+17ft-86ft

Overall

11529

Males

7470

M60-64

7470

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

11569

Males

7354

M60-64

7354

23M→24M

23.0 - 24.0 mi

Top 37%
×6stories
+12ft-82ft

Overall

9551

Males

6321

M60-64

6321

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

9850

Males

6336

M60-64

6336

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11150

Males

6975

M60-64

6975

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2stories
+22ft-21ft

Overall

22532

Males

12774

M60-64

12774

Passing Analysis

Category:
Athletes Passed
3228
Passed By
1664
Net Change
+1564
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16816
5K → 10K523108+415#16816#16401
10K → 15K40789+318#16401#16083
15K → 20K47059+411#16083#15672
20K → Half6213+49#15672#15623
Half → 25K259184+75#15623#15548
25K → 30K150458-308#15548#15856
30K → 20M129127+2#15856#15854
20M → 21M15662+94#15854#15760
21M → 35K1738+165#15760#15595
35K → 23M26314+249#15595#15346
23M → 24M2610+261#15346#15085
24M → 40K2612+259#15085#14826
40K → 25.2M957+88#14826#14738
25.2M → Finish19533-514#14738#15252
TOTALS32281664+1564
📊

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