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BOSTON MARATHON 2024

Jiamin Xu

Bib: 18169 F SG

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 42%
Division (F18-39)
#0 / 4660
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
8:21/mi
25:58
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:25/mi
52:08
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:32/mi
1:18:40
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:44/mi
1:45:48
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:20/mi
1:51:29
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:45/mi
2:12:42
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:07/mi
2:41:00
↑ 181↓ 1480.2%
138 ft elev
20M
9:02/mi
2:53:17
↑ 64↓ 500.2%
148 ft elev
21M
9:21/mi
3:02:38
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:33/mi
3:09:02
↑ 17↓ 861.7%
156 ft elev
23M
8:58/mi
3:20:15
↑ 23↓ 630.6%
116 ft elev
24M
8:24/mi
3:28:39
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:19/mi
3:35:46
↓ 200.3%
20 ft elev
25.2M
9:23/mi
3:39:00
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:59/mi
3:47:08
↑ 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
Time1:51:29
Pace8:30 /mi
2nd Half
Distance13.11 mi
Time1:55:39
Pace8:49 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:1825:588:2125:58
8:21
-
10K
6.21 mi11:44:2852:088:2326:10
8:25
+0:04
15K
9.32 mi12:11:001:18:408:2626:32
8:32
+0:07
20K
12.43 mi12:38:081:45:488:3127:08
8:44
+0:12
Half
13.11 mi12:43:491:51:298:305:41
8:20
-0:24
25K
15.53 mi13:05:022:12:428:3321:13
8:45
+0:25
30K
18.64 mi13:33:202:41:008:3828:18
9:07
+0:22
20M
20.00 mi13:45:372:53:178:4012:17
9:02
-0:05
21M
21.00 mi13:54:583:02:388:429:21
9:21
+0:19
35K
21.75 mi14:01:223:09:028:426:24
8:33
-0:48
23M
23.00 mi14:12:353:20:158:4211:13
8:58
+0:25
24M
24.00 mi14:20:593:28:398:428:24
8:24
-0:34
40K
24.85 mi14:28:063:35:468:417:07
8:19
-0:05
25.2M
25.20 mi14:31:203:39:008:413:14
9:23
+1:04
Finish
26.22 mi14:39:283:47:088:408:08
7:59
-1:24

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

7:59 /mi

Average Pace

8:40 /mi

Slowest Pace

9:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:45

72% of race

Time at Steady Pace

1:04:23

28% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:40 /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 mi11:18:1825:588:2125:58
8:21
#16992
10K
6.21 mi11:44:2852:088:2326:10
8:25
#16857
15K
9.32 mi12:11:001:18:408:2626:32
8:32
#16744
20K
12.43 mi12:38:081:45:488:3127:08
8:44
#16494
Half
13.11 mi12:43:491:51:298:305:41
8:20
#16404
25K
15.53 mi13:05:022:12:428:3321:13
8:45
#15989
30K
18.64 mi13:33:202:41:008:3828:18
9:07
#15545
20M
20.00 mi13:45:372:53:178:4012:17
9:02
#15313
21M
21.00 mi13:54:583:02:388:429:21
9:21
#15006
35K
21.75 mi14:01:223:09:028:426:24
8:33
#14852
23M
23.00 mi14:12:353:20:158:4211:13
8:58
#14581
24M
24.00 mi14:20:593:28:398:428:24
8:24
#14295
40K
24.85 mi14:28:063:35:468:417:07
8:19
#14005
25.2M
25.20 mi14:31:203:39:008:413:14
9:23
#13883
Finish
26.22 mi14:39:283:47:088:408:08
7:59
#13623
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi169926158615816625(Top 65%)5931(Top 54%)5931(Top 127%)
10K6.21 mi3.10 mi16857+1356068+906068+9016820(Top 66%)6021(Top 55%)6021(Top 129%)
15K9.32 mi3.11 mi16744+1135992+765992+7616625(Top 65%)5931(Top 54%)5931(Top 127%)
20K12.43 mi3.11 mi16494+2505851+1415851+14116009(Top 63%)5594(Top 51%)5594(Top 120%)
Half13.11 mi0.68 mi16404+905806+455806+4514809(Top 58%)4922(Top 45%)4922(Top 106%)
25K15.53 mi2.42 mi15989+4155604+2025604+20214334(Top 56%)4793(Top 44%)4793(Top 103%)
30K18.64 mi3.11 mi15545+4445404+2005404+20013764(Top 54%)4710(Top 43%)4710(Top 101%)
20M20.00 mi1.36 mi15313+2325311+935311+9312339(Top 48%)4208(Top 39%)4208(Top 90%)
21M21.00 mi1.00 mi15006+3075180+1315180+13110219(Top 40%)3343(Top 31%)3343(Top 72%)
35K21.75 mi0.75 mi14852+1545119+615119+6111105(Top 43%)3821(Top 35%)3821(Top 82%)
23M23.00 mi1.25 mi14581+2715031+885031+8810979(Top 43%)3890(Top 36%)3890(Top 83%)
24M24.00 mi1.00 mi14295+2864896+1354896+1358899(Top 35%)2915(Top 27%)2915(Top 63%)
40K24.85 mi0.85 mi14005+2904775+1214775+1217513(Top 29%)2392(Top 22%)2392(Top 51%)
25.2M25.20 mi0.35 mi13883+1224725+504725+508311(Top 33%)2824(Top 26%)2824(Top 61%)
Finish26.22 mi1.02 mi13623+2604612+1134612+1138462(Top 33%)2815(Top 26%)2815(Top 60%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

16625

Females

5931

F18-39

5931

5K→10K

3.1 - 6.2 mi

Top 66%
×5story building
+79ft-138ft

Overall

16820

Females

6021

F18-39

6021

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

16625

Females

5931

F18-39

5931

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

16009

Females

5594

F18-39

5594

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

14809

Females

4922

F18-39

4922

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

14334

Females

4793

F18-39

4793

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

13764

Females

4710

F18-39

4710

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12339

Females

4208

F18-39

4208

20M→21M

20.0 - 21.0 mi

Top 40%
×8story building
+106ft-24ft

Overall

10219

Females

3343

F18-39

3343

21M→35K

21.0 - 21.8 mi

Top 43%
×7story building
+17ft-86ft

Overall

11105

Females

3821

F18-39

3821

35K→23M

21.8 - 23.0 mi

Top 43%
×5story building
+23ft-63ft

Overall

10979

Females

3890

F18-39

3890

23M→24M

23.0 - 24.0 mi

Top 35%
×6story building
+12ft-82ft

Overall

8899

Females

2915

F18-39

2915

24M→40K

24.0 - 24.9 mi

Top 29%
×1story
+6ft-20ft

Overall

7513

Females

2392

F18-39

2392

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8311

Females

2824

F18-39

2824

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

8462

Females

2815

F18-39

2815

Passing Analysis

Category:
Athletes Passed
4033
Passed By
664
Net Change
+3369
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16992
5K → 10K341206+135#16992#16857
10K → 15K278165+113#16857#16744
15K → 20K377127+250#16744#16494
20K → Half977+90#16494#16404
Half → 25K45641+415#16404#15989
25K → 30K50662+444#15989#15545
30K → 20M24917+232#15545#15313
20M → 21M31912+307#15313#15006
21M → 35K1562+154#15006#14852
35K → 23M28413+271#14852#14581
23M → 24M2904+286#14581#14295
24M → 40K2900+290#14295#14005
40K → 25.2M1220+122#14005#13883
25.2M → Finish2688+260#13883#13623
TOTALS4033664+3369
📊

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