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BOSTON MARATHON 2024

Sarah Cox

Bib: 17479 F GB

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 46%
Gender (Female)
#0 / 10924
Top 33%
Division (F18-39)
#0 / 4660
Top 50%
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
8:04/mi
25:05
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:08/mi
50:20
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:08/mi
1:15:35
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:13/mi
1:41:07
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:52/mi
1:46:29
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:21/mi
2:06:44
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:40/mi
2:33:40
↑ 181↓ 1480.2%
138 ft elev
20M
8:36/mi
2:45:21
↑ 64↓ 500.2%
148 ft elev
21M
9:02/mi
2:54:23
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
8:27/mi
3:00:42
↑ 17↓ 861.7%
156 ft elev
23M
8:34/mi
3:11:25
↑ 23↓ 630.6%
116 ft elev
24M
8:30/mi
3:19:55
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:37/mi
3:27:17
↓ 200.3%
20 ft elev
25.2M
9:54/mi
3:30:42
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:02/mi
3:38:53
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:46:298:07 /mi⚡ faster
2nd Half
1:52:248:34 /mi+5.6%
Positive split — 5.6% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
25:058:043.11 mi25:05
8:04
-
10K
50:208:063.10 mi25:15
8:08
+0:04
15K
1:15:358:073.11 mi25:15
8:08
0:00
20K
1:41:078:083.11 mi25:32
8:13
+0:05
Half(13.11 mi)
1:46:298:070.68 mi5:22
7:52
-0:21
25K
2:06:448:092.42 mi20:15
8:21
+0:29
30K
2:33:408:153.11 mi26:56
8:40
+0:19
20M
2:45:218:161.36 mi11:41
8:36
-0:04
21M
2:54:238:181.00 mi9:02
9:02
+0:26
35K
3:00:428:190.75 mi6:19
8:27
-0:35
23M
3:11:258:191.25 mi10:43
8:34
+0:07
24M
3:19:558:201.00 mi8:30
8:30
-0:04
40K
3:27:178:200.85 mi7:22
8:37
+0:07
25.2M
3:30:428:220.35 mi3:25
9:54
+1:17
Finish(26.22 mi)
3:38:538:211.02 mi8:11
8:02
-1:52
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:52 /mi

Average Pace

8:21 /mi

Slowest Pace

9:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:29:08

41% of race

Time at Steady Pace

1:57:18

54% of race

Time at Slower Pace

12:27

6% of race

Average Pace: 8:21 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi15194505350531426445264526
10K3.10 mi15112+825004+495004+491506149674967
15K3.11 mi14774+3384799+2054799+2051426445264526
20K3.11 mi14308+4664548+2514548+2511325339763976
Half(13.11 mi)0.68 mi14159+1494464+844464+841185032603260
25K2.42 mi13776+3834264+2004264+2001227736593659
30K3.11 mi13247+5294051+2134051+2131153934753475
20M1.36 mi12920+3273930+1213930+1211000629582958
21M1.00 mi12628+2923812+1183812+118878325832583
35K0.75 mi12513+1153793+193793+191043234573457
23M1.25 mi12237+2763703+903703+90882727932793
24M1.00 mi12074+1633664+393664+39948131843184
40K0.85 mi11928+1463628+363628+36898030773077
25.2M0.35 mi11891+373624+43624+41059439033903
Finish(26.22 mi)1.02 mi11718+1733580+443580+44875229432943

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14264

Females

4526

F18-39

4526

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

15061

Females

4967

F18-39

4967

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14264

Females

4526

F18-39

4526

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

13253

Females

3976

F18-39

3976

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

11850

Females

3260

F18-39

3260

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12277

Females

3659

F18-39

3659

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

11539

Females

3475

F18-39

3475

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10006

Females

2958

F18-39

2958

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

8783

Females

2583

F18-39

2583

21M→35K

21.0 - 21.8 mi

Top 41%
×7story building
+17ft-86ft

Overall

10432

Females

3457

F18-39

3457

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

8827

Females

2793

F18-39

2793

23M→24M

23.0 - 24.0 mi

Top 37%
×6story building
+12ft-82ft

Overall

9481

Females

3184

F18-39

3184

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

8980

Females

3077

F18-39

3077

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

10594

Females

3903

F18-39

3903

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2story building
+22ft-21ft

Overall

8752

Females

2943

F18-39

2943

Passing Analysis

Category:
Passed
4069
Passed By
593
Net Change
+3476
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15194
5K → 10K316234+82#15194#15112
10K → 15K42284+338#15112#14774
15K → 20K51246+466#14774#14308
20K → Half1490+149#14308#14159
Half → 25K41936+383#14159#13776
25K → 30K59061+529#13776#13247
30K → 20M33710+327#13247#12920
20M → 21M30715+292#12920#12628
21M → 35K13318+115#12628#12513
35K → 23M28913+276#12513#12237
23M → 24M18320+163#12237#12074
24M → 40K16721+146#12074#11928
40K → 25.2M5821+37#11928#11891
25.2M → Finish18714+173#11891#11718
TOTALS4069593+3476

Passing Charts

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