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BOSTON MARATHON 2024

Marleen Janson

Bib: 16006•F

0:00
0:00
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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

Start
0:00:00
Race begins
5K· 3.11 mi
24:44
Rank: #14377
Start → 5K
24:44 | 7:58/mi
10K· 6.21 mi
50:16
Rank: #15047 (-670)
5K → 10K
25:32 | 8:13/mi
15K· 9.32 mi
1:16:53
Rank: #15628 (-581)
10K → 15K
26:37 | 8:34/mi
20K· 12.43 mi
1:45:32
Rank: #16382 (-754)
15K → 20K
28:39 | 9:13/mi
Half· 13.11 mi
1:51:35
Rank: #16446 (-64)
20K → Half
6:03 | 8:52/mi
25K· 15.53 mi
2:14:51
Rank: #16736 (-290)
Half → 25K
23:16 | 9:36/mi
30K· 18.64 mi
2:44:18
Rank: #16465 (+271)
25K → 30K
29:27 | 9:29/mi
20M
2:57:51
Rank: #16462 (+3)
30K → 20M
13:33 | 9:58/mi
21M
3:08:52
Rank: #16513 (-51)
20M → 21M
11:01 | 11:01/mi
35K· 21.75 mi
3:15:42
Rank: #16416 (+97)
21M → 35K
6:50 | 9:08/mi
23M
3:28:14
Rank: #16368 (+48)
35K → 23M
12:32 | 10:01/mi
24M
3:37:58
Rank: #16311 (+57)
23M → 24M
9:44 | 9:44/mi
40K· 24.85 mi
3:46:20
Rank: #16204 (+107)
24M → 40K
8:22 | 9:47/mi
25.2M
3:50:17
Rank: #16199 (+5)
40K → 25.2M
3:57 | 11:27/mi
Finish· 26.22 mi
3:59:32
Rank: #16154 (+45)
25.2M → Finish
9:15 | 9:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:35
Pace8:31 /mi
2nd Half
Distance13.11 mi
Time2:07:57
Pace9:46 /mi
📊Positive Split: 14.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:0424:447:5824:44
7:58
-
10K
6.21 mi11:40:3650:168:0525:32
8:13
+0:15
15K
9.32 mi12:07:131:16:538:1526:37
8:34
+0:21
20K
12.43 mi12:35:521:45:328:3028:39
9:13
+0:39
Half
13.11 mi12:41:551:51:358:316:03
8:52
-0:21
25K
15.53 mi13:05:112:14:518:4123:16
9:36
+0:44
30K
18.64 mi13:34:382:44:188:4929:27
9:29
-0:07
20M
20.00 mi13:48:112:57:518:5413:33
9:58
+0:29
21M
21.00 mi13:59:123:08:529:0011:01
11:01
+1:03
35K
21.75 mi14:06:023:15:429:006:50
9:08
-1:53
23M
23.00 mi14:18:343:28:149:0312:32
10:01
+0:53
24M
24.00 mi14:28:183:37:589:059:44
9:44
-0:17
40K
24.85 mi14:36:403:46:209:068:22
9:47
+0:03
25.2M
25.20 mi14:40:373:50:179:083:57
11:27
+1:40
Finish
26.22 mi14:49:523:59:329:099:15
9:05
-2:22

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

7:58 /mi

Average Pace

9:09 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:22:56

35% of race

Time at Steady Pace

1:55:33

48% of race

Time at Slower Pace

41:03

17% of race

Average Pace: 9:08 /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 mi11:15:0424:447:5824:44
7:58
#14377
10K
6.21 mi11:40:3650:168:0525:32
8:13
#15047
15K
9.32 mi12:07:131:16:538:1526:37
8:34
#15628
20K
12.43 mi12:35:521:45:328:3028:39
9:13
#16382
Half
13.11 mi12:41:551:51:358:316:03
8:52
#16446
25K
15.53 mi13:05:112:14:518:4123:16
9:36
#16736
30K
18.64 mi13:34:382:44:188:4929:27
9:29
#16465
20M
20.00 mi13:48:112:57:518:5413:33
9:58
#16462
21M
21.00 mi13:59:123:08:529:0011:01
11:01
#16513
35K
21.75 mi14:06:023:15:429:006:50
9:08
#16416
23M
23.00 mi14:18:343:28:149:0312:32
10:01
#16368
24M
24.00 mi14:28:183:37:589:059:44
9:44
#16311
40K
24.85 mi14:36:403:46:209:068:22
9:47
#16204
25.2M
25.20 mi14:40:373:50:179:083:57
11:27
#16199
Finish
26.22 mi14:49:523:59:329:099:15
9:05
#16154
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi143774551455116772(Top 66%)6011(Top 55%)6011(Top 129%)
10K6.21 mi3.10 mi15047-6704965-4144965-41415661(Top 61%)5320(Top 49%)5320(Top 114%)
15K9.32 mi3.11 mi15628-5815328-3635328-36316772(Top 66%)6011(Top 55%)6011(Top 129%)
20K12.43 mi3.11 mi16382-7545789-4615789-46118267(Top 71%)6851(Top 63%)6851(Top 147%)
Half13.11 mi0.68 mi16446-645838-495838-4917659(Top 69%)6600(Top 60%)6600(Top 142%)
25K15.53 mi2.42 mi16736-2906040-2026040-20217855(Top 70%)6740(Top 62%)6740(Top 145%)
30K18.64 mi3.11 mi16465+2715950+905950+9015387(Top 60%)5636(Top 52%)5636(Top 121%)
20M20.00 mi1.36 mi16462+35987-375987-3716369(Top 64%)6400(Top 59%)6400(Top 137%)
21M21.00 mi1.00 mi16513-516037-506037-5016378(Top 64%)6530(Top 60%)6530(Top 140%)
35K21.75 mi0.75 mi16416+975995+425995+4214001(Top 55%)5337(Top 49%)5337(Top 115%)
23M23.00 mi1.25 mi16368+486012-176012-1715521(Top 61%)6175(Top 57%)6175(Top 133%)
24M24.00 mi1.00 mi16311+576013-16013-115399(Top 60%)6149(Top 56%)6149(Top 132%)
40K24.85 mi0.85 mi16204+1075983+305983+3014230(Top 56%)5639(Top 52%)5639(Top 121%)
25.2M25.20 mi0.35 mi16199+55995-125995-1215933(Top 62%)6506(Top 60%)6506(Top 140%)
Finish26.22 mi1.02 mi16154+455994+15994+114615(Top 57%)5785(Top 53%)5785(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

16772

Females

6011

F18-39

6011

5K→10K

3.1 - 6.2 mi

Top 61%
×5stories
+79ft-138ft

Overall

15661

Females

5320

F18-39

5320

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

16772

Females

6011

F18-39

6011

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

18267

Females

6851

F18-39

6851

20K→Half

12.4 - 13.1 mi

Top 69%
×2stories
+19ft-37ft

Overall

17659

Females

6600

F18-39

6600

Half→25K

13.1 - 15.5 mi

Top 70%
×4stories
+66ft-88ft

Overall

17855

Females

6740

F18-39

6740

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

15387

Females

5636

F18-39

5636

30K→20M

18.6 - 20.0 mi

Top 64%
×5stories
+64ft-50ft

Overall

16369

Females

6400

F18-39

6400

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

16378

Females

6530

F18-39

6530

21M→35K

21.0 - 21.8 mi

Top 55%
×7stories
+17ft-86ft

Overall

14001

Females

5337

F18-39

5337

35K→23M

21.8 - 23.0 mi

Top 61%
×5stories
+23ft-63ft

Overall

15521

Females

6175

F18-39

6175

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

15399

Females

6149

F18-39

6149

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

14230

Females

5639

F18-39

5639

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

15933

Females

6506

F18-39

6506

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

14615

Females

5785

F18-39

5785

Passing Analysis

Category:
Athletes Passed
1641
Passed By
3418
Net Change
-1777
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14377
5K → 10K90760-670#14377#15047
10K → 15K96677-581#15047#15628
15K → 20K86840-754#15628#16382
20K → Half2286-64#16382#16446
Half → 25K144434-290#16446#16736
25K → 30K372101+271#16736#16465
30K → 20M124121+3#16465#16462
20M → 21M79130-51#16462#16513
21M → 35K11720+97#16513#16416
35K → 23M13385+48#16416#16368
23M → 24M10447+57#16368#16311
24M → 40K13528+107#16311#16204
40K → 25.2M4136+5#16204#16199
25.2M → Finish9853+45#16199#16154
TOTALS16413418-1777
📊

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