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BOSTON MARATHON 2024

Jiayun Shao

Bib: 12956 F CN

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 25%
Gender (Female)
#0 / 10924
Top 9%
Division (F18-39)
#0 / 4660
Top 18%
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
7:09/mi
22:14
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:11/mi
44:33
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:14/mi
1:07:00
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:20/mi
1:29:48
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:20/mi
1:34:48
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:26/mi
1:52:49
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:45/mi
2:16:54
↑ 181↓ 1480.2%
138 ft elev
20M
7:49/mi
2:27:31
↑ 64↓ 500.2%
148 ft elev
21M
8:18/mi
2:35:49
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:41/mi
2:41:34
↑ 17↓ 861.7%
156 ft elev
23M
8:16/mi
2:51:55
↑ 23↓ 630.6%
116 ft elev
24M
7:58/mi
2:59:53
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:58/mi
3:06:42
↓ 200.3%
20 ft elev
25.2M
8:39/mi
3:09:41
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:39/mi
3:17:29
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:34:487:14 /mi⚡ faster
2nd Half
1:42:417:50 /mi+8.3%
Positive split — 8.3% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:4822:147:0922:14
7:09
-
10K
6.21 mi11:13:0744:337:1022:19
7:11
+0:02
15K
9.32 mi11:35:341:07:007:1122:27
7:14
+0:03
20K
12.43 mi11:58:221:29:487:1422:48
7:20
+0:06
Half
13.11 mi12:03:221:34:487:145:00
7:20
0:00
25K
15.53 mi12:21:231:52:497:1618:01
7:26
+0:06
30K
18.64 mi12:45:282:16:547:2124:05
7:45
+0:19
20M
20.00 mi12:56:052:27:317:2310:37
7:49
+0:04
21M
21.00 mi13:04:232:35:497:258:18
8:18
+0:29
35K
21.75 mi13:10:082:41:347:265:45
7:41
-0:37
23M
23.00 mi13:20:292:51:557:2810:21
8:16
+0:35
24M
24.00 mi13:28:272:59:537:307:58
7:58
-0:18
40K
24.85 mi13:35:163:06:427:316:49
7:58
0:00
25.2M
25.20 mi13:38:153:09:417:322:59
8:39
+0:41
Finish
26.22 mi13:46:033:17:297:327:48
7:39
-1:00

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

7:09 /mi

Average Pace

7:32 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:49

57% of race

Time at Steady Pace

48:15

24% of race

Time at Slower Pace

36:25

18% of race

Average Pace: 7:32 /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 mi10:50:4822:147:0922:14
7:09
#8102
10K
6.21 mi11:13:0744:337:1022:19
7:11
#7928
15K
9.32 mi11:35:341:07:007:1122:27
7:14
#7802
20K
12.43 mi11:58:221:29:487:1422:48
7:20
#7603
Half
13.11 mi12:03:221:34:487:145:00
7:20
#7607
25K
15.53 mi12:21:231:52:497:1618:01
7:26
#7350
30K
18.64 mi12:45:282:16:547:2124:05
7:45
#7107
20M
20.00 mi12:56:052:27:317:2310:37
7:49
#6909
21M
21.00 mi13:04:232:35:497:258:18
8:18
#6695
35K
21.75 mi13:10:082:41:347:265:45
7:41
#6610
23M
23.00 mi13:20:292:51:557:2810:21
8:16
#6527
24M
24.00 mi13:28:272:59:537:307:58
7:58
#6460
40K
24.85 mi13:35:163:06:427:316:49
7:58
#6362
25.2M
25.20 mi13:38:153:09:417:322:59
8:39
#6315
Finish
26.22 mi13:46:033:17:297:327:48
7:39
#6264
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi810212121212766811361136
10K6.21 mi3.10 mi7928+1741174+381174+38783111771177
15K9.32 mi3.11 mi7802+1261147+271147+27766811361136
20K12.43 mi3.11 mi7603+1991096+511096+51725610971097
Half13.11 mi0.68 mi7607-41102-61102-6796313691369
25K15.53 mi2.42 mi7350+2571055+471055+47661010171017
30K18.64 mi3.11 mi7107+2431023+321023+32643511321132
20M20.00 mi1.36 mi6909+198997+26997+26579910631063
21M21.00 mi1.00 mi6695+214973+24973+24536310271027
35K21.75 mi0.75 mi6610+85969+4969+4608213561356
23M23.00 mi1.25 mi6527+83992-23992-23718620002000
24M24.00 mi1.00 mi6460+671002-101002-10651517851785
40K24.85 mi0.85 mi6362+981011-91011-9571815381538
25.2M25.20 mi0.35 mi6315+471013-21013-2516713641364
Finish26.22 mi1.02 mi6264+511030-171030-17652619121912

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 30%
×21story building
+97ft-345ft

Overall

7668

Females

1136

F18-39

1136

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

7831

Females

1177

F18-39

1177

10K→15K

6.2 - 9.3 mi

Top 30%
×3story building
+67ft-78ft

Overall

7668

Females

1136

F18-39

1136

15K→20K

9.3 - 12.4 mi

Top 28%
×5story building
+106ft-86ft

Overall

7256

Females

1097

F18-39

1097

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

7963

Females

1369

F18-39

1369

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

6610

Females

1017

F18-39

1017

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6435

Females

1132

F18-39

1132

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

5799

Females

1063

F18-39

1063

20M→21M

20.0 - 21.0 mi

Top 21%
×8story building
+106ft-24ft

Overall

5363

Females

1027

F18-39

1027

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6082

Females

1356

F18-39

1356

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7186

Females

2000

F18-39

2000

23M→24M

23.0 - 24.0 mi

Top 25%
×6story building
+12ft-82ft

Overall

6515

Females

1785

F18-39

1785

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5718

Females

1538

F18-39

1538

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1story
+13ft-16ft

Overall

5167

Females

1364

F18-39

1364

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

6526

Females

1912

F18-39

1912

Passing Analysis

Category:
Athletes Passed
2617
Passed By
779
Net Change
+1838
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8102
5K → 10K316142+174#8102#7928
10K → 15K232106+126#7928#7802
15K → 20K27071+199#7802#7603
20K → Half3438-4#7603#7607
Half → 25K30043+257#7607#7350
25K → 30K33491+243#7350#7107
30K → 20M23133+198#7107#6909
20M → 21M23218+214#6909#6695
21M → 35K10621+85#6695#6610
35K → 23M15269+83#6610#6527
23M → 24M12053+67#6527#6460
24M → 40K12931+98#6460#6362
40K → 25.2M6215+47#6362#6315
25.2M → Finish9948+51#6315#6264
TOTALS2617779+1838

Passing Charts

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