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BOSTON MARATHON 2024

Marissa Demercurio

Bib: 16805•F

CO

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

Start
0:00:00
Race begins
5K· 3.11 mi
23:51
Rank: #12152
Start → 5K
7:41/mi
23:51 split
10K· 6.21 mi
48:22
Rank: #12750 (-598)
5K → 10K
7:53/mi
24:31 split
15K· 9.32 mi
1:15:53
Rank: #14973 (-2223)
10K → 15K
8:51/mi
27:31 split
20K· 12.43 mi
1:46:03
Rank: #16612 (-1639)
15K → 20K
9:43/mi
30:10 split
Half· 13.11 mi
1:51:48
Rank: #16535 (+77)
20K → Half
8:26/mi
5:45 split
25K· 15.53 mi
2:16:15
Rank: #17205 (-670)
Half → 25K
10:05/mi
24:27 split
30K· 18.64 mi
2:47:58
Rank: #17408 (-203)
25K → 30K
10:13/mi
31:43 split
20M
3:00:21
Rank: #17075 (+333)
30K → 20M
9:07/mi
12:23 split
21M
3:11:12
Rank: #17011 (+64)
20M → 21M
10:51/mi
10:51 split
35K· 21.75 mi
3:17:46
Rank: #16834 (+177)
21M → 35K
8:47/mi
6:34 split
23M
3:30:24
Rank: #16782 (+52)
35K → 23M
10:05/mi
12:38 split
24M
3:39:28
Rank: #16598 (+184)
23M → 24M
9:04/mi
9:04 split
40K· 24.85 mi
3:46:59
Rank: #16311 (+287)
24M → 40K
8:47/mi
7:31 split
25.2M
3:50:19
Rank: #16208 (+103)
40K → 25.2M
9:40/mi
3:20 split
Finish· 26.22 mi
3:58:50
Rank: #16020 (+188)
25.2M → Finish
8:21/mi
8:31 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:48
Pace8:32 /mi
2nd Half
Distance13.11 mi
Time2:07:02
Pace9:41 /mi
📊Positive Split: 13.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0823:517:4123:51
7:41
-
10K
6.21 mi11:38:3948:227:4724:31
7:53
+0:12
15K
9.32 mi12:06:101:15:538:0827:31
8:51
+0:58
20K
12.43 mi12:36:201:46:038:3230:10
9:43
+0:52
Half
13.11 mi12:42:051:51:488:325:45
8:26
-1:17
25K
15.53 mi13:06:322:16:158:4624:27
10:05
+1:39
30K
18.64 mi13:38:152:47:589:0131:43
10:13
+0:08
20M
20.00 mi13:50:383:00:219:0112:23
9:07
-1:06
21M
21.00 mi14:01:293:11:129:0610:51
10:51
+1:44
35K
21.75 mi14:08:033:17:469:066:34
8:47
-2:04
23M
23.00 mi14:20:413:30:249:0912:38
10:05
+1:18
24M
24.00 mi14:29:453:39:289:099:04
9:04
-1:01
40K
24.85 mi14:37:163:46:599:087:31
8:47
-0:17
25.2M
25.20 mi14:40:363:50:199:083:20
9:40
+0:53
Finish
26.22 mi14:49:073:58:509:078:31
8:21
-1:19

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

7:41 /mi

Average Pace

9:07 /mi

Slowest Pace

10:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:38

26% of race

Time at Steady Pace

1:03:03

26% of race

Time at Slower Pace

1:53:09

47% of race

Average Pace: 9:07 /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 mi11:14:0823:517:4123:51
7:41
#12152
10K
6.21 mi11:38:3948:227:4724:31
7:53
#12750
15K
9.32 mi12:06:101:15:538:0827:31
8:51
#14973
20K
12.43 mi12:36:201:46:038:3230:10
9:43
#16612
Half
13.11 mi12:42:051:51:488:325:45
8:26
#16535
25K
15.53 mi13:06:322:16:158:4624:27
10:05
#17205
30K
18.64 mi13:38:152:47:589:0131:43
10:13
#17408
20M
20.00 mi13:50:383:00:219:0112:23
9:07
#17075
21M
21.00 mi14:01:293:11:129:0610:51
10:51
#17011
35K
21.75 mi14:08:033:17:469:066:34
8:47
#16834
23M
23.00 mi14:20:413:30:249:0912:38
10:05
#16782
24M
24.00 mi14:29:453:39:289:099:04
9:04
#16598
40K
24.85 mi14:37:163:46:599:087:31
8:47
#16311
25.2M
25.20 mi14:40:363:50:199:083:20
9:40
#16208
Finish
26.22 mi14:49:073:58:509:078:31
8:21
#16020
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi121523221322118242(Top 71%)6833(Top 63%)6833(Top 147%)
10K6.21 mi3.10 mi12750-5983594-3733594-37313380(Top 52%)3980(Top 36%)3980(Top 85%)
15K9.32 mi3.11 mi14973-22234931-13374931-133718242(Top 71%)6833(Top 63%)6833(Top 147%)
20K12.43 mi3.11 mi16612-16395933-10025933-100219805(Top 78%)7697(Top 70%)7697(Top 165%)
Half13.11 mi0.68 mi16535+775893+405893+4015357(Top 60%)5256(Top 48%)5256(Top 113%)
25K15.53 mi2.42 mi17205-6706318-4256318-42519334(Top 76%)7554(Top 69%)7554(Top 162%)
30K18.64 mi3.11 mi17408-2036484-1666484-16617999(Top 70%)7040(Top 64%)7040(Top 151%)
20M20.00 mi1.36 mi17075+3336333+1516333+15112732(Top 50%)4430(Top 41%)4430(Top 95%)
21M21.00 mi1.00 mi17011+646332+16332+115934(Top 62%)6297(Top 58%)6297(Top 135%)
35K21.75 mi0.75 mi16834+1776248+846248+8412272(Top 48%)4436(Top 41%)4436(Top 95%)
23M23.00 mi1.25 mi16782+526251-36251-315781(Top 62%)6291(Top 58%)6291(Top 135%)
24M24.00 mi1.00 mi16598+1846167+846167+8412545(Top 49%)4699(Top 43%)4699(Top 101%)
40K24.85 mi0.85 mi16311+2876046+1216046+1219896(Top 39%)3532(Top 32%)3532(Top 76%)
25.2M25.20 mi0.35 mi16208+1036000+466000+469548(Top 37%)3451(Top 32%)3451(Top 74%)
Finish26.22 mi1.02 mi16020+1885918+825918+8210725(Top 42%)3865(Top 35%)3865(Top 83%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

18242

Females

6833

F18-39

6833

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13380

Females

3980

F18-39

3980

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

18242

Females

6833

F18-39

6833

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

19805

Females

7697

F18-39

7697

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

15357

Females

5256

F18-39

5256

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

19334

Females

7554

F18-39

7554

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

17999

Females

7040

F18-39

7040

30K→20M

18.6 - 20.0 mi

Top 50%
×5story building
+64ft-50ft

Overall

12732

Females

4430

F18-39

4430

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

15934

Females

6297

F18-39

6297

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12272

Females

4436

F18-39

4436

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

15781

Females

6291

F18-39

6291

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

12545

Females

4699

F18-39

4699

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

9896

Females

3532

F18-39

3532

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9548

Females

3451

F18-39

3451

25.2M→Finish

25.2 - 26.2 mi

Top 42%
×2story building
+22ft-21ft

Overall

10725

Females

3865

F18-39

3865

Passing Analysis

Category:
Athletes Passed
2055
Passed By
5923
Net Change
-3868
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12152
5K → 10K106704-598#12152#12750
10K → 15K102233-2223#12750#14973
15K → 20K351674-1639#14973#16612
20K → Half858+77#16612#16535
Half → 25K71741-670#16535#17205
25K → 30K192395-203#17205#17408
30K → 20M3385+333#17408#17075
20M → 21M12662+64#17075#17011
21M → 35K1781+177#17011#16834
35K → 23M13583+52#16834#16782
23M → 24M1906+184#16782#16598
24M → 40K2870+287#16598#16311
40K → 25.2M1041+103#16311#16208
25.2M → Finish19810+188#16208#16020
TOTALS20555923-3868
📊

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