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BOSTON MARATHON 2024

Jeanelle Tsai

Bib: 25099•F

MA

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Division (F18-39)
#0 / 4660
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
9:01/mi
28:02
↑ 97↓ 3451.5%
10K· 6.21 mi
8:51/mi
55:31
↑ 79↓ 1380.4%
15K· 9.32 mi
9:06/mi
1:23:48
↑ 67↓ 78
20K· 12.43 mi
9:28/mi
1:53:13
↑ 106↓ 860.1%
Half· 13.11 mi
9:02/mi
1:59:23
↑ 19↓ 370.5%
25K· 15.53 mi
10:02/mi
2:23:42
↑ 66↓ 880.2%
30K· 18.64 mi
10:50/mi
2:57:20
↑ 181↓ 1480.2%
20M
10:37/mi
3:11:46
↑ 64↓ 500.2%
21M
11:42/mi
3:23:28
↑ 106↓ 241.6%
35K· 21.75 mi
12:11/mi
3:32:35
↑ 17↓ 861.7%
23M
11:15/mi
3:46:40
↑ 23↓ 630.6%
24M
11:12/mi
3:57:52
↓ 821.3%
40K· 24.85 mi
12:11/mi
4:08:17
↓ 200.3%
25.2M
13:17/mi
4:12:52
↑ 13↓ 160.2%
Finish· 26.22 mi
9:31/mi
4:22:34
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:23
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:23:11
Pace10:55 /mi
📊Positive Split: 19.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:2728:029:0128:02
9:01
-
10K
6.21 mi12:14:5655:318:5627:29
8:51
-0:10
15K
9.32 mi12:43:131:23:488:5928:17
9:06
+0:15
20K
12.43 mi13:12:381:53:139:0729:25
9:28
+0:22
Half
13.11 mi13:18:481:59:239:066:10
9:02
-0:26
25K
15.53 mi13:43:072:23:429:1524:19
10:02
+1:00
30K
18.64 mi14:16:452:57:209:3133:38
10:50
+0:48
20M
20.00 mi14:31:113:11:469:3514:26
10:37
-0:13
21M
21.00 mi14:42:533:23:289:4111:42
11:42
+1:05
35K
21.75 mi14:52:003:32:359:469:07
12:11
+0:29
23M
23.00 mi15:06:053:46:409:5114:05
11:15
-0:56
24M
24.00 mi15:17:173:57:529:5511:12
11:12
-0:03
40K
24.85 mi15:27:424:08:179:5910:25
12:11
+0:59
25.2M
25.20 mi15:32:174:12:5210:024:35
13:17
+1:06
Finish
26.22 mi15:41:594:22:3410:019:42
9:31
-3:46

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

8:51 /mi

Average Pace

10:01 /mi

Slowest Pace

13:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:05

49% of race

Time at Steady Pace

1:37:40

37% of race

Time at Slower Pace

35:49

14% of race

Average Pace: 10:01 /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 mi11:47:2728:029:0128:02
9:01
#20167
10K
6.21 mi12:14:5655:318:5627:29
8:51
#19637
15K
9.32 mi12:43:131:23:488:5928:17
9:06
#19531
20K
12.43 mi13:12:381:53:139:0729:25
9:28
#19417
Half
13.11 mi13:18:481:59:239:066:10
9:02
#19364
25K
15.53 mi13:43:072:23:429:1524:19
10:02
#19355
30K
18.64 mi14:16:452:57:209:3133:38
10:50
#19418
20M
20.00 mi14:31:113:11:469:3514:26
10:37
#19312
21M
21.00 mi14:42:533:23:289:4111:42
11:42
#19204
35K
21.75 mi14:52:003:32:359:469:07
12:11
#19360
23M
23.00 mi15:06:053:46:409:5114:05
11:15
#19310
24M
24.00 mi15:17:173:57:529:5511:12
11:12
#19314
40K
24.85 mi15:27:424:08:179:5910:25
12:11
#19363
25.2M
25.20 mi15:32:174:12:5210:024:35
13:17
#19378
Finish
26.22 mi15:41:594:22:3410:019:42
9:31
#19266
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi201677964796419356(Top 76%)7442(Top 68%)7442(Top 160%)
10K6.21 mi3.10 mi19637+5307665+2997665+29919097(Top 75%)7347(Top 67%)7347(Top 158%)
15K9.32 mi3.11 mi19531+1067589+767589+7619356(Top 76%)7442(Top 68%)7442(Top 160%)
20K12.43 mi3.11 mi19417+1147524+657524+6519097(Top 75%)7322(Top 67%)7322(Top 157%)
Half13.11 mi0.68 mi19364+537493+317493+3118495(Top 72%)7064(Top 65%)7064(Top 152%)
25K15.53 mi2.42 mi19355+97493749319202(Top 75%)7481(Top 68%)7481(Top 161%)
30K18.64 mi3.11 mi19418-637599-1067599-10619582(Top 77%)7895(Top 72%)7895(Top 169%)
20M20.00 mi1.36 mi19312+1067578+217578+2118348(Top 72%)7387(Top 68%)7387(Top 159%)
21M21.00 mi1.00 mi19204+1087533+457533+4518130(Top 71%)7390(Top 68%)7390(Top 159%)
35K21.75 mi0.75 mi19360-1567638-1057638-10522120(Top 87%)9407(Top 86%)9407(Top 202%)
23M23.00 mi1.25 mi19310+507626+127626+1219071(Top 75%)7924(Top 73%)7924(Top 170%)
24M24.00 mi1.00 mi19314-47646-207646-2019755(Top 77%)8318(Top 76%)8318(Top 178%)
40K24.85 mi0.85 mi19363-497693-477693-4720807(Top 81%)8907(Top 82%)8907(Top 191%)
25.2M25.20 mi0.35 mi19378-157706-137706-1320318(Top 80%)8671(Top 79%)8671(Top 186%)
Finish26.22 mi1.02 mi19266+1127661+457661+4516641(Top 65%)6841(Top 63%)6841(Top 147%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

19356

Females

7442

F18-39

7442

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

19097

Females

7347

F18-39

7347

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

19356

Females

7442

F18-39

7442

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

19097

Females

7322

F18-39

7322

20K→Half

12.4 - 13.1 mi

Top 72%
×2story building
+19ft-37ft

Overall

18495

Females

7064

F18-39

7064

Half→25K

13.1 - 15.5 mi

Top 75%
×4story building
+66ft-88ft

Overall

19202

Females

7481

F18-39

7481

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

19582

Females

7895

F18-39

7895

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

18348

Females

7387

F18-39

7387

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

18130

Females

7390

F18-39

7390

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

22120

Females

9407

F18-39

9407

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

19071

Females

7924

F18-39

7924

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

19755

Females

8318

F18-39

8318

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

20807

Females

8907

F18-39

8907

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

20318

Females

8671

F18-39

8671

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

16641

Females

6841

F18-39

6841

Passing Analysis

Category:
Athletes Passed
2299
Passed By
1398
Net Change
+901
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20167
5K → 10K60070+530#20167#19637
10K → 15K285179+106#19637#19531
15K → 20K287173+114#19531#19417
20K → Half6714+53#19417#19364
Half → 25K193184+9#19364#19355
25K → 30K185248-63#19355#19418
30K → 20M14842+106#19418#19312
20M → 21M14335+108#19312#19204
21M → 35K23179-156#19204#19360
35K → 23M11565+50#19360#19310
23M → 24M6064-4#19310#19314
24M → 40K4695-49#19314#19363
40K → 25.2M1934-15#19363#19378
25.2M → Finish12816+112#19378#19266
TOTALS22991398+901
📊

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