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BOSTON MARATHON 2024

Jie Song

Bib: 27894 M CN

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Male)
#0 / 14578
Division (M18-39)
#0 / 4849
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
10:26/mi
32:26
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
10:41/mi
1:05:38
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
13:52/mi
1:48:44
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
15:09/mi
2:35:49
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
14:31/mi
2:45:43
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
15:54/mi
3:24:17
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
16:06/mi
4:14:19
↑ 181↓ 1480.2%
138 ft elev
20M
13:38/mi
4:32:50
↑ 64↓ 500.2%
148 ft elev
21M
15:35/mi
4:48:25
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
12:37/mi
4:57:51
↑ 17↓ 861.7%
156 ft elev
23M
14:51/mi
5:16:26
↑ 23↓ 630.6%
116 ft elev
24M
15:17/mi
5:31:43
↓ 821.3%
34 ft elev
40K· 24.85 mi
14:24/mi
5:44:02
↓ 200.3%
20 ft elev
25.2M
13:00/mi
5:48:31
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:16/mi
5:58:59
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:45:43
Pace12:38 /mi
2nd Half
Distance13.11 mi
Time3:13:16
Pace14:45 /mi
📊Positive Split: 16.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:1432:2610:2632:26
10:26
-
10K
6.21 mi12:24:261:05:3810:3433:12
10:41
+0:15
15K
9.32 mi13:07:321:48:4411:4043:06
13:52
+3:11
20K
12.43 mi13:54:372:35:4912:3247:05
15:09
+1:17
Half
13.11 mi14:04:312:45:4312:389:54
14:31
-0:38
25K
15.53 mi14:43:053:24:1713:0938:34
15:54
+1:23
30K
18.64 mi15:33:074:14:1913:3950:02
16:06
+0:12
20M
20.00 mi15:51:384:32:5013:3818:31
13:38
-2:28
21M
21.00 mi16:07:134:48:2513:4415:35
15:35
+1:57
35K
21.75 mi16:16:394:57:5113:429:26
12:37
-2:58
23M
23.00 mi16:35:145:16:2613:4518:35
14:51
+2:14
24M
24.00 mi16:50:315:31:4313:4915:17
15:17
+0:26
40K
24.85 mi17:02:505:44:0213:5112:19
14:24
-0:53
25.2M
25.20 mi17:07:195:48:3113:504:29
13:00
-1:24
Finish
26.22 mi17:17:475:58:5913:4210:28
10:16
-2:44

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

10:16 /mi

Average Pace

13:42 /mi

Slowest Pace

16:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:30:01

25% of race

Time at Steady Pace

2:44:47

46% of race

Time at Slower Pace

1:44:11

29% of race

Average Pace: 13:41 /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 mi11:51:1432:2610:2632:26
10:26
#23969
10K
6.21 mi12:24:261:05:3810:3433:12
10:41
#23896
15K
9.32 mi13:07:321:48:4411:4043:06
13:52
#24953
20K
12.43 mi13:54:372:35:4912:3247:05
15:09
#25291
Half
13.11 mi14:04:312:45:4312:389:54
14:31
#25319
25K
15.53 mi14:43:053:24:1713:0938:34
15:54
#25399
30K
18.64 mi15:33:074:14:1913:3950:02
16:06
#25442
20M
20.00 mi15:51:384:32:5013:3818:31
13:38
#25413
21M
21.00 mi16:07:134:48:2513:4415:35
15:35
#25403
35K
21.75 mi16:16:394:57:5113:429:26
12:37
#25380
23M
23.00 mi16:35:145:16:2613:4518:35
14:51
#25377
24M
24.00 mi16:50:315:31:4313:4915:17
15:17
#25405
40K
24.85 mi17:02:505:44:0213:5112:19
14:24
#25398
25.2M
25.20 mi17:07:195:48:3113:504:29
13:00
#25379
Finish
26.22 mi17:17:475:58:5913:4210:28
10:16
#25313
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi23969139841398425476(Top 100%)14545(Top 100%)14545(Top 300%)
10K6.21 mi3.10 mi23896+7313957+2713957+2723842(Top 93%)13919(Top 95%)13919(Top 287%)
15K9.32 mi3.11 mi24953-105714370-41314370-41325476(Top 100%)14545(Top 100%)14545(Top 300%)
20K12.43 mi3.11 mi25291-33814490-12014490-12025516(Top 100%)14563(Top 100%)14563(Top 300%)
Half13.11 mi0.68 mi25319-2814495-514495-525472(Top 100%)14532(Top 100%)14532(Top 300%)
25K15.53 mi2.42 mi25399-8014521-2614521-2625453(Top 100%)14523(Top 100%)14523(Top 300%)
30K18.64 mi3.11 mi25442-4314529-814529-825345(Top 99%)14458(Top 99%)14458(Top 298%)
20M20.00 mi1.36 mi25413+2914522+714522+723603(Top 92%)13502(Top 93%)13502(Top 278%)
21M21.00 mi1.00 mi25403+1014513+914513+924169(Top 95%)13771(Top 94%)13771(Top 284%)
35K21.75 mi0.75 mi25380+2314501+1214501+1222753(Top 89%)13005(Top 89%)13005(Top 268%)
23M23.00 mi1.25 mi25377+3145011450124546(Top 96%)13952(Top 96%)13952(Top 288%)
24M24.00 mi1.00 mi25405-2814510-914510-924910(Top 97%)14136(Top 97%)14136(Top 292%)
40K24.85 mi0.85 mi25398+714507+314507+324051(Top 94%)13606(Top 93%)13606(Top 281%)
25.2M25.20 mi0.35 mi25379+1914496+1114496+1119702(Top 77%)11306(Top 78%)11306(Top 233%)
Finish26.22 mi1.02 mi25313+6614468+2814468+2819318(Top 76%)11148(Top 76%)11148(Top 230%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 100%
×21story building
+97ft-345ft

Overall

25476

Males

14545

M18-39

14545

5K→10K

3.1 - 6.2 mi

Top 93%
×5story building
+79ft-138ft

Overall

23842

Males

13919

M18-39

13919

10K→15K

6.2 - 9.3 mi

Top 100%
×3story building
+67ft-78ft

Overall

25476

Males

14545

M18-39

14545

15K→20K

9.3 - 12.4 mi

Top 100%
×5story building
+106ft-86ft

Overall

25516

Males

14563

M18-39

14563

20K→Half

12.4 - 13.1 mi

Top 100%
×2story building
+19ft-37ft

Overall

25472

Males

14532

M18-39

14532

Half→25K

13.1 - 15.5 mi

Top 100%
×4story building
+66ft-88ft

Overall

25453

Males

14523

M18-39

14523

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

25345

Males

14458

M18-39

14458

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

23603

Males

13502

M18-39

13502

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

24169

Males

13771

M18-39

13771

21M→35K

21.0 - 21.8 mi

Top 89%
×7story building
+17ft-86ft

Overall

22753

Males

13005

M18-39

13005

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

24546

Males

13952

M18-39

13952

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

24910

Males

14136

M18-39

14136

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

24051

Males

13606

M18-39

13606

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

19702

Males

11306

M18-39

11306

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

19318

Males

11148

M18-39

11148

Passing Analysis

Category:
Athletes Passed
437
Passed By
1781
Net Change
-1344
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23969
5K → 10K224151+73#23969#23896
10K → 15K41061-1057#23896#24953
15K → 20K3341-338#24953#25291
20K → Half129-28#25291#25319
Half → 25K383-80#25319#25399
25K → 30K1154-43#25399#25442
30K → 20M301+29#25442#25413
20M → 21M177+10#25413#25403
21M → 35K230+23#25403#25380
35K → 23M1613+3#25380#25377
23M → 24M533-28#25377#25405
24M → 40K147+7#25405#25398
40K → 25.2M190+19#25398#25379
25.2M → Finish671+66#25379#25313
TOTALS4371781-1344
📊

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