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BOSTON MARATHON 2024

Marilyn Coornaert

Bib: 13246•F

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 41%
Gender (Female)
#0 / 10924
Top 26%
Division (F18-39)
#0 / 4660
Top 43%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:29
Rank: #11255
Start → 5K
23:29 | 7:34/mi
10K· 6.21 mi
46:52
Rank: #10849 (+406)
5K → 10K
23:23 | 7:32/mi
15K· 9.32 mi
1:10:40
Rank: #10828 (+21)
10K → 15K
23:48 | 7:40/mi
20K· 12.43 mi
1:35:02
Rank: #10771 (+57)
15K → 20K
24:22 | 7:51/mi
Half· 13.11 mi
1:40:17
Rank: #10751 (+20)
20K → Half
5:15 | 7:42/mi
25K· 15.53 mi
1:59:53
Rank: #10671 (+80)
Half → 25K
19:36 | 8:05/mi
30K· 18.64 mi
2:26:41
Rank: #10742 (-71)
25K → 30K
26:48 | 8:38/mi
20M
2:38:34
Rank: #10688 (+54)
30K → 20M
11:53 | 8:45/mi
21M
2:47:49
Rank: #10564 (+124)
20M → 21M
9:15 | 9:15/mi
35K· 21.75 mi
2:54:13
Rank: #10536 (+28)
21M → 35K
6:24 | 8:33/mi
23M
3:05:08
Rank: #10424 (+112)
35K → 23M
10:55 | 8:43/mi
24M
3:13:53
Rank: #10418 (+6)
23M → 24M
8:45 | 8:45/mi
40K· 24.85 mi
3:21:30
Rank: #10404 (+14)
24M → 40K
7:37 | 8:54/mi
25.2M
3:24:50
Rank: #10378 (+26)
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:33:23
Rank: #10365 (+13)
25.2M → Finish
8:33 | 8:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:17
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:53:06
Pace8:38 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:5623:297:3423:29
7:34
-
10K
6.21 mi11:17:1946:527:3323:23
7:32
-0:02
15K
9.32 mi11:41:071:10:407:3523:48
7:40
+0:08
20K
12.43 mi12:05:291:35:027:3924:22
7:51
+0:11
Half
13.11 mi12:10:441:40:177:395:15
7:42
-0:09
25K
15.53 mi12:30:201:59:537:4319:36
8:05
+0:23
30K
18.64 mi12:57:082:26:417:5226:48
8:38
+0:33
20M
20.00 mi13:09:012:38:347:5611:53
8:45
+0:07
21M
21.00 mi13:18:162:47:497:599:15
9:15
+0:30
35K
21.75 mi13:24:402:54:138:016:24
8:33
-0:42
23M
23.00 mi13:35:353:05:088:0310:55
8:43
+0:10
24M
24.00 mi13:44:203:13:538:058:45
8:45
+0:02
40K
24.85 mi13:51:573:21:308:067:37
8:54
+0:09
25.2M
25.20 mi13:55:173:24:508:083:20
9:40
+0:46
Finish
26.22 mi14:03:503:33:238:098:33
8:23
-1:17

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

7:32 /mi

Average Pace

8:09 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:53

56% of race

Time at Steady Pace

1:13:18

34% of race

Time at Slower Pace

20:12

9% of race

Average Pace: 8:08 /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 mi10:53:5623:297:3423:29
7:34
#11255
10K
6.21 mi11:17:1946:527:3323:23
7:32
#10849
15K
9.32 mi11:41:071:10:407:3523:48
7:40
#10828
20K
12.43 mi12:05:291:35:027:3924:22
7:51
#10771
Half
13.11 mi12:10:441:40:177:395:15
7:42
#10751
25K
15.53 mi12:30:201:59:537:4319:36
8:05
#10671
30K
18.64 mi12:57:082:26:417:5226:48
8:38
#10742
20M
20.00 mi13:09:012:38:347:5611:53
8:45
#10688
21M
21.00 mi13:18:162:47:497:599:15
9:15
#10564
35K
21.75 mi13:24:402:54:138:016:24
8:33
#10536
23M
23.00 mi13:35:353:05:088:0310:55
8:43
#10424
24M
24.00 mi13:44:203:13:538:058:45
8:45
#10418
40K
24.85 mi13:51:573:21:308:067:37
8:54
#10404
25.2M
25.20 mi13:55:173:24:508:083:20
9:40
#10378
Finish
26.22 mi14:03:503:33:238:098:33
8:23
#10365
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi112552702270210916(Top 43%)2644(Top 24%)2644(Top 57%)
10K6.21 mi3.10 mi10849+4062534+1682534+16810504(Top 41%)2360(Top 22%)2360(Top 51%)
15K9.32 mi3.11 mi10828+212533+12533+110916(Top 43%)2644(Top 24%)2644(Top 57%)
20K12.43 mi3.11 mi10771+572547-142547-1410730(Top 42%)2684(Top 25%)2684(Top 58%)
Half13.11 mi0.68 mi10751+202539+82539+810621(Top 42%)2613(Top 24%)2613(Top 56%)
25K15.53 mi2.42 mi10671+802563-242563-2410733(Top 42%)2832(Top 26%)2832(Top 61%)
30K18.64 mi3.11 mi10742-712690-1272690-12711302(Top 44%)3342(Top 31%)3342(Top 72%)
20M20.00 mi1.36 mi10688+542720-302720-3010807(Top 42%)3368(Top 31%)3368(Top 72%)
21M21.00 mi1.00 mi10564+1242722-22722-29729(Top 38%)3074(Top 28%)3074(Top 66%)
35K21.75 mi0.75 mi10536+282735-132735-1311060(Top 43%)3776(Top 35%)3776(Top 81%)
23M23.00 mi1.25 mi10424+1122741-62741-69671(Top 38%)3222(Top 29%)3222(Top 69%)
24M24.00 mi1.00 mi10418+62788-472788-4710860(Top 43%)3853(Top 35%)3853(Top 83%)
40K24.85 mi0.85 mi10404+142820-322820-3210425(Top 41%)3760(Top 34%)3760(Top 81%)
25.2M25.20 mi0.35 mi10378+262826-62826-69476(Top 37%)3379(Top 31%)3379(Top 73%)
Finish26.22 mi1.02 mi10365+132858-322858-3210905(Top 43%)3926(Top 36%)3926(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

10916

Females

2644

F18-39

2644

5K→10K

3.1 - 6.2 mi

Top 41%
×5stories
+79ft-138ft

Overall

10504

Females

2360

F18-39

2360

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

10916

Females

2644

F18-39

2644

15K→20K

9.3 - 12.4 mi

Top 42%
×5stories
+106ft-86ft

Overall

10730

Females

2684

F18-39

2684

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

10621

Females

2613

F18-39

2613

Half→25K

13.1 - 15.5 mi

Top 42%
×4stories
+66ft-88ft

Overall

10733

Females

2832

F18-39

2832

25K→30K

15.5 - 18.6 mi

Top 44%
×9stories
+181ft-148ft

Overall

11302

Females

3342

F18-39

3342

30K→20M

18.6 - 20.0 mi

Top 42%
×5stories
+64ft-50ft

Overall

10807

Females

3368

F18-39

3368

20M→21M

20.0 - 21.0 mi

Top 38%
×8stories
+106ft-24ft

Overall

9729

Females

3074

F18-39

3074

21M→35K

21.0 - 21.8 mi

Top 43%
×7stories
+17ft-86ft

Overall

11060

Females

3776

F18-39

3776

35K→23M

21.8 - 23.0 mi

Top 38%
×5stories
+23ft-63ft

Overall

9671

Females

3222

F18-39

3222

23M→24M

23.0 - 24.0 mi

Top 43%
×6stories
+12ft-82ft

Overall

10860

Females

3853

F18-39

3853

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10425

Females

3760

F18-39

3760

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9476

Females

3379

F18-39

3379

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2stories
+22ft-21ft

Overall

10905

Females

3926

F18-39

3926

Passing Analysis

Category:
Athletes Passed
2533*
Passed By
1643
Net Change
+890
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11255
5K → 10K519113+406#11255#10849
10K → 15K218197+21#10849#10828
15K → 20K245188+57#10828#10771
20K → Half5232+20#10771#10751
Half → 25K267187+80#10751#10671
25K → 30K265336-71#10671#10742
30K → 20M162108+54#10742#10688
20M → 21M19066+124#10688#10564
21M → 35K8658+28#10564#10536
35K → 23M18674+112#10536#10424
23M → 24M106100+6#10424#10418
24M → 40K93*79+14#10418#10404
40K → 25.2M5024+26#10404#10378
25.2M → Finish9481+13#10378#10365
TOTALS2533*1643+890

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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